{"id":1744,"date":"2023-04-27T20:26:16","date_gmt":"2023-04-27T11:26:16","guid":{"rendered":"https:\/\/edu.ujhb.org\/?p=1744"},"modified":"2023-04-27T20:26:16","modified_gmt":"2023-04-27T11:26:16","slug":"kotlin%e5%85%a5%e9%97%a8%ef%bc%88%e4%b8%ad%e6%96%87%e7%89%88%ef%bc%89","status":"publish","type":"post","link":"https:\/\/edu.ujhb.org\/?p=1744","title":{"rendered":"Kotlin\u5165\u95e8\uff08\u4e2d\u6587\u7248\uff09"},"content":{"rendered":"\n<p>\u6211\u662f\u8981\u505aIT\u6559\u7a0b\u7684\u89c6\u9891\uff0c\u4f60\u80fd\u5426\u6839\u636e\u7f51\u7ad9\u7684\u5185\u5bb9\uff0c\u4e3a\u6211\u5b89\u6392\u89c6\u9891\u6559\u7a0b\u7684\u6587\u5b57\u5185\u5bb9\u3002\u6211\u4eec\u5148\u4ecekotlin\u6559\u7a0b\u5f00\u59cb\uff0c\u4f60\u5148\u4e3a\u6211\u5217\u51fa\u8981\u8bb2\u89e3\u7684\u5185\u5bb9\u4e00\u89c8\u3002<\/p>\n\n\n\n<p>\u5f53\u7136\u53ef\u4ee5\uff01\u4ee5\u4e0b\u662f\u4e00\u4e2aKotlin\u6559\u7a0b\u7684\u5927\u7eb2\uff0c\u53ef\u4ee5\u4f5c\u4e3a\u60a8\u89c6\u9891\u6559\u7a0b\u7684\u53c2\u8003\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Kotlin\u4ecb\u7ecd\u548c\u5b89\u88c5\n<ul class=\"wp-block-list\">\n<li>Kotlin\u7684\u5386\u53f2\u548c\u4f18\u52bf<\/li>\n\n\n\n<li>\u5b89\u88c5Kotlin\u548c\u914d\u7f6e\u5f00\u53d1\u73af\u5883<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u57fa\u672c\u8bed\u6cd5\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u7c7b\u578b<\/li>\n\n\n\n<li>\u53d8\u91cf\u548c\u5e38\u91cf<\/li>\n\n\n\n<li>\u8fd0\u7b97\u7b26<\/li>\n\n\n\n<li>\u63a7\u5236\u6d41\u8bed\u53e5<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u51fd\u6570\n<ul class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u548c\u8c03\u7528\u51fd\u6570<\/li>\n\n\n\n<li>\u51fd\u6570\u53c2\u6570<\/li>\n\n\n\n<li>\u8fd4\u56de\u503c<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u7c7b\u548c\u5bf9\u8c61\n<ul class=\"wp-block-list\">\n<li>\u7c7b\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/li>\n\n\n\n<li>\u5bf9\u8c61\u7684\u521b\u5efa\u548c\u4f7f\u7528<\/li>\n\n\n\n<li>\u7ee7\u627f\u548c\u591a\u6001<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Lambda\u8868\u8fbe\u5f0f\u548c\u9ad8\u9636\u51fd\u6570\n<ul class=\"wp-block-list\">\n<li>Lambda\u8868\u8fbe\u5f0f\u7684\u57fa\u672c\u8bed\u6cd5<\/li>\n\n\n\n<li>\u9ad8\u9636\u51fd\u6570\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/li>\n\n\n\n<li>\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6982\u5ff5\u548c\u8303\u5f0f<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u6269\u5c55\u51fd\u6570\u548c\u6269\u5c55\u5c5e\u6027\n<ul class=\"wp-block-list\">\n<li>\u6269\u5c55\u51fd\u6570\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/li>\n\n\n\n<li>\u6269\u5c55\u5c5e\u6027\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u6570\u636e\u7c7b\u548c\u5bc6\u5c01\u7c7b\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u7c7b\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/li>\n\n\n\n<li>\u5bc6\u5c01\u7c7b\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u6cdb\u578b\n<ul class=\"wp-block-list\">\n<li>\u6cdb\u578b\u7c7b\u548c\u6cdb\u578b\u51fd\u6570\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/li>\n\n\n\n<li>\u4e0a\u4e0b\u754c\u9650\u5b9a<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5f02\u5e38\u5904\u7406\n<ul class=\"wp-block-list\">\n<li>\u5f02\u5e38\u7684\u57fa\u672c\u6982\u5ff5\u548c\u5904\u7406\u65b9\u5f0f<\/li>\n\n\n\n<li>\u81ea\u5b9a\u4e49\u5f02\u5e38<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u534f\u7a0b\n<ul class=\"wp-block-list\">\n<li>\u534f\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\u548c\u4f7f\u7528<\/li>\n\n\n\n<li>\u534f\u7a0b\u7684\u8c03\u5ea6\u5668\u548c\u534f\u7a0b\u4e0a\u4e0b\u6587<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u4ee5\u4e0a\u5927\u7eb2\u4ec5\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u60a8\u7684\u5b9e\u9645\u9700\u8981\u8fdb\u884c\u8c03\u6574\u548c\u4fee\u6539\uff0c\u4ee5\u9002\u5e94\u60a8\u7684\u89c6\u9891\u6559\u7a0b\u5185\u5bb9\u548c\u76ee\u6807\u53d7\u4f17\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin\u7684\u5386\u53f2\u548c\u4f18\u52bf<\/p>\n\n\n\n<p>Kotlin \u662f\u4e00\u79cd\u9759\u6001\u7c7b\u578b\u7f16\u7a0b\u8bed\u8a00\uff0c\u662f\u7531 JetBrains \u5f00\u53d1\u7684\u4e00\u79cd\u8de8\u5e73\u53f0\u7f16\u7a0b\u8bed\u8a00\uff0c\u5177\u6709 Java \u865a\u62df\u673a\u3001JavaScript \u6216\u539f\u751f\u4ee3\u7801\u7b49\u591a\u79cd\u76ee\u6807\u5e73\u53f0\u7684\u652f\u6301\u3002Kotlin \u4e8e 2011 \u5e74\u9996\u6b21\u63a8\u51fa\uff0c\u65e8\u5728\u89e3\u51b3 Java \u8bed\u8a00\u5728\u67d0\u4e9b\u65b9\u9762\u7684\u4e0d\u8db3\u4e4b\u5904\u3002\u4ee5\u4e0b\u662f Kotlin \u7684\u5386\u53f2\u548c\u4f18\u52bf\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<p>\u5386\u53f2\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2011\u5e74\uff0cJetBrains \u7684\u56e2\u961f\u5f00\u59cb\u5f00\u53d1Kotlin\u3002<\/li>\n\n\n\n<li>2016\u5e74\uff0cKotlin \u53d1\u5e03\u4e86\u7b2c\u4e00\u4e2a\u7a33\u5b9a\u7248\u672c1.0\uff0c\u5e76\u5f00\u6e90\u3002<\/li>\n\n\n\n<li>2017\u5e74\uff0cGoogle \u5ba3\u5e03\u5c06 Kotlin \u4f5c\u4e3a Android \u5b98\u65b9\u5f00\u53d1\u8bed\u8a00\u4e4b\u4e00\u3002<\/li>\n\n\n\n<li>2019\u5e74\uff0cKotlin 1.3 \u53d1\u5e03\uff0c\u52a0\u5165\u4e86\u534f\u7a0b\u652f\u6301\uff0c\u8fdb\u4e00\u6b65\u589e\u5f3a\u4e86 Kotlin \u7684\u5e76\u53d1\u7f16\u7a0b\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u622a\u81f32021\u5e74\u5e95\uff0cKotlin \u5df2\u7ecf\u53d1\u5e03\u5230\u4e86 1.5.0 \u7248\u672c\uff0c\u5e76\u4e14\u6b63\u5728\u8fc5\u901f\u53d1\u5c55\u548c\u6269\u5c55\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f18\u52bf\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u53ef\u8bfb\u6027\u9ad8\uff1aKotlin \u7684\u8bed\u6cd5\u8bbe\u8ba1\u5f3a\u8c03\u53ef\u8bfb\u6027\uff0c\u4f7f\u5f97\u4ee3\u7801\u66f4\u52a0\u6613\u4e8e\u7406\u89e3\u548c\u7ef4\u62a4\u3002Kotlin \u53ef\u4ee5\u4f7f\u4ee3\u7801\u53d8\u5f97\u66f4\u52a0\u7b80\u6d01\u3001\u7d27\u51d1\uff0c\u540c\u65f6\u4fdd\u6301\u53ef\u8bfb\u6027\u3002<\/li>\n\n\n\n<li>\u7a7a\u6307\u9488\u5f02\u5e38\u5b89\u5168\uff1aKotlin \u5bf9 null \u503c\u7684\u5904\u7406\u8fdb\u884c\u4e86\u4e25\u683c\u7684\u9650\u5236\u548c\u5b89\u5168\u6027\u68c0\u67e5\uff0c\u5927\u5927\u964d\u4f4e\u4e86\u7a7a\u6307\u9488\u5f02\u5e38\u7684\u98ce\u9669\u3002<\/li>\n\n\n\n<li>\u4e0e Java \u65e0\u7f1d\u4ea4\u4e92\uff1aKotlin \u53ef\u4ee5\u4e0e Java \u4ee3\u7801\u5f88\u597d\u5730\u4ea4\u4e92\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 Java \u7c7b\u5e93\u548c\u6846\u67b6\u3002<\/li>\n\n\n\n<li>\u5b89\u5168\u6027\u9ad8\uff1aKotlin \u7684\u7c7b\u578b\u7cfb\u7edf\u53ef\u4ee5\u5728\u7f16\u8bd1\u671f\u95f4\u6355\u83b7\u4e00\u4e9b\u7f16\u7a0b\u9519\u8bef\uff0c\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u5b89\u5168\u6027\u3002<\/li>\n\n\n\n<li>\u7b80\u6d01\u6027\u9ad8\uff1aKotlin \u5177\u6709\u5f88\u9ad8\u7684\u8868\u8fbe\u80fd\u529b\uff0c\u901a\u8fc7\u8bed\u8a00\u7279\u6027\uff08\u5982\u6269\u5c55\u51fd\u6570\u3001Lambda\u8868\u8fbe\u5f0f\u3001\u6570\u636e\u7c7b\u7b49\uff09\u53ef\u4ee5\u4f7f\u5f97\u4ee3\u7801\u53d8\u5f97\u66f4\u52a0\u7b80\u6d01\u3001\u6613\u4e8e\u7406\u89e3\u3002<\/li>\n\n\n\n<li>\u9762\u5411\u5bf9\u8c61\u548c\u51fd\u6570\u5f0f\u7f16\u7a0b\u7ed3\u5408\uff1aKotlin \u53ef\u4ee5\u540c\u65f6\u652f\u6301\u9762\u5411\u5bf9\u8c61\u548c\u51fd\u6570\u5f0f\u7f16\u7a0b\uff0c\u8fd9\u4f7f\u5f97 Kotlin \u5177\u6709\u66f4\u597d\u7684\u4ee3\u7801\u91cd\u7528\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n\n\n\n<li>\u652f\u6301\u591a\u79cd\u5e73\u53f0\uff1aKotlin \u53ef\u4ee5\u7f16\u8bd1\u6210\u591a\u79cd\u76ee\u6807\u5e73\u53f0\u7684\u4ee3\u7801\uff0c\u5305\u62ec Java \u865a\u62df\u673a\u3001Android\u3001JavaScript \u4ee5\u53ca\u539f\u751f\u4ee3\u7801\u7b49\uff0c\u5177\u6709\u5f88\u597d\u7684\u8de8\u5e73\u53f0\u652f\u6301\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0cKotlin \u662f\u4e00\u79cd\u65b0\u5174\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u5177\u6709\u5f88\u591a\u4f18\u52bf\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u7f16\u5199\u66f4\u5b89\u5168\u3001\u9ad8\u6548\u3001\u6613\u8bfb\u7684\u4ee3\u7801\uff0c\u540c\u65f6\u4e5f\u53ef\u4ee5\u652f\u6301\u591a\u79cd\u76ee\u6807\u5e73\u53f0\uff0c\u5177\u6709\u5f88\u597d\u7684\u5e94\u7528\u524d\u666f\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5b89\u88c5Kotlin\u548c\u914d\u7f6e\u5f00\u53d1\u73af\u5883<\/p>\n\n\n\n<p>\u5b89\u88c5 Kotlin \u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4e0b\u8f7d Kotlin \u7f16\u8bd1\u5668\uff1a\u53ef\u4ee5\u4ece Kotlin \u5b98\u7f51 <a href=\"https:\/\/kotlinlang.org\/\">https:\/\/kotlinlang.org\/<\/a> \u4e0a\u4e0b\u8f7d Kotlin \u7f16\u8bd1\u5668\u7684\u538b\u7f29\u5305\u3002<\/li>\n\n\n\n<li>\u89e3\u538b Kotlin \u7f16\u8bd1\u5668\uff1a\u5c06\u4e0b\u8f7d\u7684\u538b\u7f29\u5305\u89e3\u538b\u5230\u6307\u5b9a\u7684\u6587\u4ef6\u5939\u4e2d\u3002<\/li>\n\n\n\n<li>\u914d\u7f6e Kotlin \u73af\u5883\u53d8\u91cf\uff1a\u5c06\u89e3\u538b\u540e\u7684 Kotlin \u7f16\u8bd1\u5668\u6240\u5728\u7684\u8def\u5f84\u6dfb\u52a0\u5230\u7cfb\u7edf\u7684\u73af\u5883\u53d8\u91cf\u4e2d\uff0c\u4ee5\u4fbf\u5728\u547d\u4ee4\u884c\u4e2d\u4f7f\u7528 Kotlin \u547d\u4ee4\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u914d\u7f6e\u5f00\u53d1\u73af\u5883\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b89\u88c5 Java\uff1aKotlin \u662f\u8fd0\u884c\u5728 Java \u865a\u62df\u673a\u4e0a\u7684\uff0c\u56e0\u6b64\u9700\u8981\u5148\u5b89\u88c5 Java \u8fd0\u884c\u73af\u5883\u3002\u53ef\u4ee5\u4ece\u5b98\u65b9\u7f51\u7ad9\u4e0a\u4e0b\u8f7d\u548c\u5b89\u88c5 Java\u3002<\/li>\n\n\n\n<li>\u5b89\u88c5\u96c6\u6210\u5f00\u53d1\u73af\u5883\uff08IDE\uff09\uff1aKotlin \u652f\u6301\u591a\u79cd IDE\uff0c\u5305\u62ec IntelliJ IDEA\u3001Android Studio\u3001Eclipse \u7b49\u3002\u53ef\u4ee5\u9009\u62e9\u4e00\u6b3e IDE \u5b89\u88c5\u5e76\u914d\u7f6e Kotlin \u63d2\u4ef6\u3002<\/li>\n\n\n\n<li>\u521b\u5efa Kotlin \u9879\u76ee\uff1a\u5728 IDE \u4e2d\u521b\u5efa Kotlin \u9879\u76ee\uff0c\u53ef\u4ee5\u9009\u62e9\u521b\u5efa\u63a7\u5236\u53f0\u7a0b\u5e8f\u3001GUI \u5e94\u7528\u7a0b\u5e8f\u6216\u8005 Android \u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n\n\n\n<li>\u914d\u7f6e Kotlin \u63d2\u4ef6\uff1a\u5728 IDE \u4e2d\u914d\u7f6e Kotlin \u63d2\u4ef6\uff0c\u53ef\u4ee5\u8bbe\u7f6e Kotlin \u7f16\u8bd1\u5668\u7684\u7248\u672c\u3001Java \u8fd0\u884c\u73af\u5883\u3001\u4f9d\u8d56\u5e93\u7b49\u3002<\/li>\n\n\n\n<li>\u7f16\u5199 Kotlin \u4ee3\u7801\uff1a\u4f7f\u7528 Kotlin \u7f16\u5199\u4ee3\u7801\uff0c\u53ef\u4ee5\u8c03\u7528 Java \u5e93\u548c\u6846\u67b6\uff0c\u5e76\u4eab\u53d7 Kotlin \u7684\u8bed\u8a00\u7279\u6027\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5b89\u88c5 Kotlin \u548c\u914d\u7f6e\u5f00\u53d1\u73af\u5883\u9700\u8981\u8fdb\u884c\u4e00\u4e9b\u51c6\u5907\u5de5\u4f5c\uff0c\u5305\u62ec\u4e0b\u8f7d\u548c\u89e3\u538b\u7f16\u8bd1\u5668\u3001\u5b89\u88c5 Java \u8fd0\u884c\u73af\u5883\u3001\u5b89\u88c5 IDE \u548c\u914d\u7f6e Kotlin \u63d2\u4ef6\u7b49\uff0c\u8fd9\u4e9b\u6b65\u9aa4\u53ef\u4ee5\u4f7f\u60a8\u987a\u5229\u5730\u5f00\u59cb\u4f7f\u7528 Kotlin \u8fdb\u884c\u5f00\u53d1\u5de5\u4f5c\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin \u57fa\u672c\u8bed\u6cd5\u6570\u636e\u7c7b\u578b<\/p>\n\n\n\n<p>Kotlin \u7684\u57fa\u672c\u8bed\u6cd5\u548c\u6570\u636e\u7c7b\u578b\u5305\u62ec\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u636e\u7c7b\u578b\uff1aKotlin \u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u6570\u5b57\u7c7b\u578b\uff08Byte\u3001Short\u3001Int\u3001Long\u3001Float\u3001Double\uff09\u3001\u5e03\u5c14\u7c7b\u578b\uff08Boolean\uff09\u3001\u5b57\u7b26\u7c7b\u578b\uff08Char\uff09\u548c\u5b57\u7b26\u4e32\u7c7b\u578b\uff08String\uff09\u3002\u5176\u4e2d\u6570\u5b57\u7c7b\u578b\u53ef\u4ee5\u5206\u4e3a\u6574\u6570\u7c7b\u578b\u548c\u6d6e\u70b9\u6570\u7c7b\u578b\u3002<\/li>\n\n\n\n<li>\u53d8\u91cf\u548c\u5e38\u91cf\uff1a\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 var \u5173\u952e\u5b57\u58f0\u660e\u53d8\u91cf\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528 val \u5173\u952e\u5b57\u58f0\u660e\u5e38\u91cf\u3002\u53d8\u91cf\u548c\u5e38\u91cf\u7684\u7c7b\u578b\u53ef\u4ee5\u663e\u5f0f\u58f0\u660e\uff0c\u4e5f\u53ef\u4ee5\u6839\u636e\u8d4b\u503c\u7684\u5185\u5bb9\u8fdb\u884c\u63a8\u65ad\u3002<\/li>\n\n\n\n<li>\u8fd0\u7b97\u7b26\uff1aKotlin \u652f\u6301\u591a\u79cd\u8fd0\u7b97\u7b26\uff0c\u5305\u62ec\u7b97\u672f\u8fd0\u7b97\u7b26\u3001\u6bd4\u8f83\u8fd0\u7b97\u7b26\u3001\u903b\u8f91\u8fd0\u7b97\u7b26\u3001\u4f4d\u8fd0\u7b97\u7b26\u7b49\u3002\u8fd0\u7b97\u7b26\u7684\u4f7f\u7528\u65b9\u5f0f\u4e0e\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\u7c7b\u4f3c\u3002<\/li>\n\n\n\n<li>\u63a7\u5236\u6d41\u8bed\u53e5\uff1aKotlin \u652f\u6301\u591a\u79cd\u63a7\u5236\u6d41\u8bed\u53e5\uff0c\u5305\u62ec if-else \u8bed\u53e5\u3001when \u8bed\u53e5\u3001for \u5faa\u73af\u548c while \u5faa\u73af\u3002\u8fd9\u4e9b\u8bed\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7a0b\u5e8f\u6839\u636e\u4e0d\u540c\u6761\u4ef6\u8fdb\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\u548c\u51b3\u7b56\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4e0b\u9762\u5206\u522b\u8be6\u7ec6\u89e3\u91ca\u5404\u79cd\u6570\u636e\u7c7b\u578b\u7684\u7279\u70b9\u548c\u7528\u6cd5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u5b57\u7c7b\u578b\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6574\u6570\u7c7b\u578b\uff1aKotlin \u63d0\u4f9b\u4e86\u56db\u79cd\u6574\u6570\u7c7b\u578b\uff1aByte\u3001Short\u3001Int \u548c Long\uff0c\u5206\u522b\u4ee3\u8868\u4e0d\u540c\u7684\u4f4d\u6570\u548c\u53d6\u503c\u8303\u56f4\u3002\u4f8b\u5982\uff0cByte \u7c7b\u578b\u7684\u53d6\u503c\u8303\u56f4\u4e3a -128 \u5230 127\u3002<\/li>\n\n\n\n<li>\u6d6e\u70b9\u6570\u7c7b\u578b\uff1aKotlin \u63d0\u4f9b\u4e86\u4e24\u79cd\u6d6e\u70b9\u6570\u7c7b\u578b\uff1aFloat \u548c Double\uff0c\u5206\u522b\u4ee3\u8868\u5355\u7cbe\u5ea6\u548c\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u3002\u4f8b\u5982\uff0cDouble \u7c7b\u578b\u7684\u7cbe\u5ea6\u53ef\u4ee5\u8fbe\u5230 15-16 \u4f4d\u6709\u6548\u6570\u5b57\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u5e03\u5c14\u7c7b\u578b\uff1aKotlin \u7684\u5e03\u5c14\u7c7b\u578b\u53ea\u6709\u4e24\u4e2a\u503c\uff0ctrue \u548c false\uff0c\u7528\u4e8e\u8868\u793a\u903b\u8f91\u771f\u548c\u903b\u8f91\u5047\u3002<\/li>\n\n\n\n<li>\u5b57\u7b26\u7c7b\u578b\uff1aKotlin \u7684\u5b57\u7b26\u7c7b\u578b Char \u7528\u4e8e\u8868\u793a Unicode \u5b57\u7b26\uff0c\u4f7f\u7528\u5355\u5f15\u53f7\uff08&#8217; &#8216;\uff09\u8fdb\u884c\u8d4b\u503c\u3002\u4f8b\u5982\uff0cChar \u7c7b\u578b\u7684\u53d8\u91cf\u53ef\u4ee5\u8868\u793a\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u6807\u70b9\u7b26\u53f7\u7b49\u3002<\/li>\n\n\n\n<li>\u5b57\u7b26\u4e32\u7c7b\u578b\uff1aKotlin \u7684\u5b57\u7b26\u4e32\u7c7b\u578b String \u7528\u4e8e\u8868\u793a\u6587\u672c\uff0c\u4f7f\u7528\u53cc\u5f15\u53f7\uff08&#8221; &#8220;\uff09\u6216\u4e09\u4e2a\u53cc\u5f15\u53f7\uff08&#8221;&#8221;&#8221; &#8220;&#8221;&#8221;\uff09\u8fdb\u884c\u8d4b\u503c\u3002\u4f8b\u5982\uff0cString \u7c7b\u578b\u7684\u53d8\u91cf\u53ef\u4ee5\u8868\u793a\u5355\u8bcd\u3001\u53e5\u5b50\u3001\u6bb5\u843d\u7b49\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0cKotlin \u7684\u57fa\u672c\u8bed\u6cd5\u548c\u6570\u636e\u7c7b\u578b\u5305\u62ec\u6570\u5b57\u7c7b\u578b\u3001\u5e03\u5c14\u7c7b\u578b\u3001\u5b57\u7b26\u7c7b\u578b\u548c\u5b57\u7b26\u4e32\u7c7b\u578b\uff0c\u8fd9\u4e9b\u6570\u636e\u7c7b\u578b\u53ef\u4ee5\u7528\u4e8e\u8868\u793a\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\u548c\u8fdb\u884c\u4e0d\u540c\u7c7b\u578b\u7684\u64cd\u4f5c\u3002\u5728\u7a0b\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u53d8\u91cf\u548c\u5e38\u91cf\u6765\u5b58\u50a8\u548c\u64cd\u4f5c\u8fd9\u4e9b\u6570\u636e\u7c7b\u578b\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin \u57fa\u672c\u8bed\u6cd5\u53d8\u91cf\u548c\u5e38\u91cf<\/p>\n\n\n\n<p>Kotlin \u4e2d\u7684\u53d8\u91cf\u548c\u5e38\u91cf\u662f\u7a0b\u5e8f\u4e2d\u5b58\u50a8\u6570\u636e\u7684\u57fa\u672c\u5355\u5143\u3002\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 var \u5173\u952e\u5b57\u58f0\u660e\u53d8\u91cf\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528 val \u5173\u952e\u5b57\u58f0\u660e\u5e38\u91cf\u3002\u4ee5\u4e0b\u662f\u53d8\u91cf\u548c\u5e38\u91cf\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u53d8\u91cf\uff1aKotlin \u4e2d\u7684\u53d8\u91cf\u4f7f\u7528 var \u5173\u952e\u5b57\u8fdb\u884c\u58f0\u660e\uff0c\u5e76\u4e14\u53ef\u4ee5\u901a\u8fc7\u8d4b\u503c\u6765\u6539\u53d8\u5176\u503c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u6574\u578b\u53d8\u91cf\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>var age: Int = 20\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u53d8\u91cf\u540d\u4e3a age\uff0c\u7c7b\u578b\u4e3a Int\uff0c\u521d\u59cb\u503c\u4e3a 20\u3002\u53d8\u91cf\u7684\u503c\u53ef\u4ee5\u968f\u7740\u7a0b\u5e8f\u7684\u6267\u884c\u800c\u6539\u53d8\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u5c06 age \u53d8\u91cf\u7684\u503c\u6539\u4e3a 21\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">makefileCopy code<code>age = 21\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u5e38\u91cf\uff1aKotlin \u4e2d\u7684\u5e38\u91cf\u4f7f\u7528 val \u5173\u952e\u5b57\u8fdb\u884c\u58f0\u660e\uff0c\u5e76\u4e14\u4e00\u65e6\u8d4b\u503c\u540e\u5c31\u65e0\u6cd5\u518d\u6b21\u6539\u53d8\u5176\u503c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5b57\u7b26\u4e32\u5e38\u91cf\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>val name: String = \"John\"\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5e38\u91cf\u540d\u4e3a name\uff0c\u7c7b\u578b\u4e3a String\uff0c\u521d\u59cb\u503c\u4e3a &#8220;John&#8221;\u3002\u7531\u4e8e\u5b83\u662f\u4e00\u4e2a\u5e38\u91cf\uff0c\u5b83\u7684\u503c\u4e0d\u80fd\u88ab\u66f4\u6539\u3002\u4ee5\u4e0b\u4ee3\u7801\u5c06\u65e0\u6cd5\u7f16\u8bd1\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>name = \"Mike\" \/\/ \u8fd9\u91cc\u4f1a\u7f16\u8bd1\u9519\u8bef\n<\/code><\/pre>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u4f7f\u7528 var \u5173\u952e\u5b57\u58f0\u660e\u53d8\u91cf\uff0c\u4f7f\u7528 val \u5173\u952e\u5b57\u58f0\u660e\u5e38\u91cf\u3002\u53d8\u91cf\u53ef\u4ee5\u901a\u8fc7\u8d4b\u503c\u6765\u6539\u53d8\u5176\u503c\uff0c\u800c\u5e38\u91cf\u7684\u503c\u4e00\u65e6\u88ab\u8d4b\u503c\u540e\u5c31\u4e0d\u80fd\u518d\u6b21\u6539\u53d8\u3002\u5728\u7a0b\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u9009\u62e9\u4f7f\u7528\u53d8\u91cf\u6216\u5e38\u91cf\u6765\u5b58\u50a8\u548c\u64cd\u4f5c\u6570\u636e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin \u57fa\u672c\u8bed\u6cd5\u8fd0\u7b97\u7b26<\/p>\n\n\n\n<p>Kotlin \u4e2d\u652f\u6301\u7684\u8fd0\u7b97\u7b26\u5305\u62ec\u7b97\u672f\u8fd0\u7b97\u7b26\u3001\u6bd4\u8f83\u8fd0\u7b97\u7b26\u3001\u903b\u8f91\u8fd0\u7b97\u7b26\u3001\u4f4d\u8fd0\u7b97\u7b26\u548c\u8d4b\u503c\u8fd0\u7b97\u7b26\u3002\u4ee5\u4e0b\u662f\u8fd9\u4e9b\u8fd0\u7b97\u7b26\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7b97\u672f\u8fd0\u7b97\u7b26\uff1aKotlin \u4e2d\u7684\u7b97\u672f\u8fd0\u7b97\u7b26\u5305\u62ec\u52a0\uff08+\uff09\u3001\u51cf\uff08-\uff09\u3001\u4e58\uff08*\uff09\u3001\u9664\uff08\/\uff09\u548c\u53d6\u6a21\uff08%\uff09\u7b49\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86 Kotlin \u4e2d\u7684\u7b97\u672f\u8fd0\u7b97\u7b26\u7684\u4f7f\u7528\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">lessCopy code<code>val a = 10\nval b = 5\nval c = a + b \/\/ 15\nval d = a - b \/\/ 5\nval e = a * b \/\/ 50\nval f = a \/ b \/\/ 2\nval g = a % b \/\/ 0\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u6bd4\u8f83\u8fd0\u7b97\u7b26\uff1aKotlin \u4e2d\u7684\u6bd4\u8f83\u8fd0\u7b97\u7b26\u5305\u62ec\u7b49\u4e8e\uff08==\uff09\u3001\u4e0d\u7b49\u4e8e\uff08!=\uff09\u3001\u5927\u4e8e\uff08&gt;\uff09\u3001\u5c0f\u4e8e\uff08&lt;\uff09\u3001\u5927\u4e8e\u7b49\u4e8e\uff08&gt;=\uff09\u548c\u5c0f\u4e8e\u7b49\u4e8e\uff08&lt;=\uff09\u7b49\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86 Kotlin \u4e2d\u7684\u6bd4\u8f83\u8fd0\u7b97\u7b26\u7684\u4f7f\u7528\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>val a = 10\nval b = 5\nval c = (a == b) \/\/ false\nval d = (a != b) \/\/ true\nval e = (a &gt; b) \/\/ true\nval f = (a &lt; b) \/\/ false\nval g = (a &gt;= b) \/\/ true\nval h = (a &lt;= b) \/\/ false\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u903b\u8f91\u8fd0\u7b97\u7b26\uff1aKotlin \u4e2d\u7684\u903b\u8f91\u8fd0\u7b97\u7b26\u5305\u62ec\u4e0e\uff08&amp;&amp;\uff09\u3001\u6216\uff08||\uff09\u548c\u975e\uff08!\uff09\u7b49\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86 Kotlin \u4e2d\u7684\u903b\u8f91\u8fd0\u7b97\u7b26\u7684\u4f7f\u7528\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">javaCopy code<code>val a = true\nval b = false\nval c = (a &amp;&amp; b) \/\/ false\nval d = (a || b) \/\/ true\nval e = !a \/\/ false\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u4f4d\u8fd0\u7b97\u7b26\uff1aKotlin \u4e2d\u7684\u4f4d\u8fd0\u7b97\u7b26\u5305\u62ec\u6309\u4f4d\u4e0e\uff08&amp;\uff09\u3001\u6309\u4f4d\u6216\uff08|\uff09\u3001\u6309\u4f4d\u5f02\u6216\uff08^\uff09\u3001\u6309\u4f4d\u53d6\u53cd\uff08~\uff09\u3001\u5de6\u79fb\uff08&lt;&lt;\uff09\u548c\u53f3\u79fb\uff08&gt;&gt;\uff09\u7b49\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86 Kotlin \u4e2d\u7684\u4f4d\u8fd0\u7b97\u7b26\u7684\u4f7f\u7528\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">lessCopy code<code>val a = 0b1100\nval b = 0b1010\nval c = a and b \/\/ 0b1000\nval d = a or b \/\/ 0b1110\nval e = a xor b \/\/ 0b0110\nval f = a.inv() \/\/ 0b0011\nval g = a shl 2 \/\/ 0b110000\nval h = a shr 2 \/\/ 0b0011\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u8d4b\u503c\u8fd0\u7b97\u7b26\uff1aKotlin \u4e2d\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u5305\u62ec\u7b49\u4e8e\u53f7\uff08=\uff09\u548c\u5176\u4ed6\u7b97\u672f\u8fd0\u7b97\u7b26\u548c\u4f4d\u8fd0\u7b97\u7b26\u7684\u7ec4\u5408\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86 Kotlin \u4e2d\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u7684\u4f7f\u7528\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>var a = 10\na += 5 \/\/ \u7b49\u4ef7\u4e8e a = a + 5\uff0ca \u7684\u503c\u53d8\u4e3a 15\na -= 3 \/\/ \u7b49\u4ef7\u4e8e a = a - 3\uff0ca \u7684\u503c\u53d8\u4e3a 12\na *= 2\n<\/code><\/pre>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\/\/ \u7b49\u4ef7\u4e8e a = a * 2\uff0ca \u7684\u503c\u53d8\u4e3a 24 a \/= 4 \/\/ \u7b49\u4ef7\u4e8e a = a \/ 4\uff0ca \u7684\u503c\u53d8\u4e3a 6 a %= 3 \/\/ \u7b49\u4ef7\u4e8e a = a % 3\uff0ca \u7684\u503c\u53d8\u4e3a 0 a and 2 \/\/ \u7b49\u4ef7\u4e8e a = a and 2\uff0ca \u7684\u503c\u53d8\u4e3a 0 a or 3 \/\/ \u7b49\u4ef7\u4e8e a = a or 3\uff0ca \u7684\u503c\u53d8\u4e3a 3 a xor 1 \/\/ \u7b49\u4ef7\u4e8e a = a xor 1\uff0ca \u7684\u503c\u53d8\u4e3a 2 a shl 1 \/\/ \u7b49\u4ef7\u4e8e a = a shl 1\uff0ca \u7684\u503c\u53d8\u4e3a 4 a shr 2 \/\/ \u7b49\u4ef7\u4e8e a = a shr 2\uff0ca \u7684\u503c\u53d8\u4e3a 1<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u652f\u6301\u591a\u79cd\u8fd0\u7b97\u7b26\uff0c\u5305\u62ec\u7b97\u672f\u8fd0\u7b97\u7b26\u3001\u6bd4\u8f83\u8fd0\u7b97\u7b26\u3001\u903b\u8f91\u8fd0\u7b97\u7b26\u3001\u4f4d\u8fd0\u7b97\u7b26\u548c\u8d4b\u503c\u8fd0\u7b97\u7b26\u7b49\u3002\u8fd9\u4e9b\u8fd0\u7b97\u7b26\u7684\u4f7f\u7528\u65b9\u5f0f\u4e0e\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\u7c7b\u4f3c\u3002\u5728\u7a0b\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9b\u8fd0\u7b97\u7b26\u8fdb\u884c\u5404\u79cd\u8ba1\u7b97\u548c\u64cd\u4f5c\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin \u57fa\u672c\u8bed\u6cd5\u63a7\u5236\u6d41\u8bed\u53e5<\/p>\n\n\n\n<p>Kotlin \u4e2d\u7684\u63a7\u5236\u6d41\u8bed\u53e5\u5305\u62ec\u6761\u4ef6\u8bed\u53e5\u548c\u5faa\u73af\u8bed\u53e5\u3002\u4ee5\u4e0b\u662f\u8fd9\u4e9b\u8bed\u53e5\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6761\u4ef6\u8bed\u53e5\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>if-else \u8bed\u53e5\uff1aKotlin \u4e2d\u7684 if-else \u8bed\u53e5\u7528\u4e8e\u6839\u636e\u7ed9\u5b9a\u7684\u6761\u4ef6\u6267\u884c\u4e0d\u540c\u7684\u4ee3\u7801\u5757\u3002if-else \u8bed\u53e5\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>if (condition) {\n    \/\/ code to be executed if condition is true\n} else {\n    \/\/ code to be executed if condition is false\n}\n<\/code><\/pre>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86 if-else \u8bed\u53e5\u7684\u4f7f\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>val a = 10\nval b = 5\n\nif (a &gt; b) {\n    println(\"a is greater than b\")\n} else {\n    println(\"a is not greater than b\")\n}\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>when \u8bed\u53e5\uff1aKotlin \u4e2d\u7684 when \u8bed\u53e5\u7c7b\u4f3c\u4e8e switch \u8bed\u53e5\uff0c\u7528\u4e8e\u6839\u636e\u7ed9\u5b9a\u7684\u6761\u4ef6\u6267\u884c\u4e0d\u540c\u7684\u4ee3\u7801\u5757\u3002when \u8bed\u53e5\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-preformatted\">rustCopy code<code>when (value) {\n    option1 -&gt; \/\/ code to be executed if value is equal to option1\n    option2 -&gt; \/\/ code to be executed if value is equal to option2\n    else -&gt; \/\/ code to be executed if value is not equal to any of the options\n}\n<\/code><\/pre>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86 when \u8bed\u53e5\u7684\u4f7f\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">goCopy code<code>val x = 2\n\nwhen (x) {\n    1 -&gt; println(\"x is 1\")\n    2 -&gt; println(\"x is 2\")\n    3 -&gt; println(\"x is 3\")\n    else -&gt; println(\"x is not 1, 2 or 3\")\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u5faa\u73af\u8bed\u53e5\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>for \u5faa\u73af\uff1aKotlin \u4e2d\u7684 for \u5faa\u73af\u7528\u4e8e\u904d\u5386\u6570\u7ec4\u6216\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u3002for \u5faa\u73af\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>for (item in collection) {\n    \/\/ code to be executed for each item in the collection\n}\n<\/code><\/pre>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86 for \u5faa\u73af\u7684\u4f7f\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>val numbers = arrayOf(1, 2, 3, 4, 5)\n\nfor (number in numbers) {\n    println(number)\n}\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>while \u5faa\u73af\uff1aKotlin \u4e2d\u7684 while \u5faa\u73af\u7528\u4e8e\u5728\u7ed9\u5b9a\u6761\u4ef6\u4e3a\u771f\u65f6\u91cd\u590d\u6267\u884c\u4ee3\u7801\u5757\u3002while \u5faa\u73af\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>while (condition) {\n    \/\/ code to be executed while condition is true\n}\n<\/code><\/pre>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86 while \u5faa\u73af\u7684\u4f7f\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>var x = 1\n\nwhile (x &lt;= 10) {\n    println(x)\n    x++\n}\n<\/code><\/pre>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u63a7\u5236\u6d41\u8bed\u53e5\u5305\u62ec\u6761\u4ef6\u8bed\u53e5\u548c\u5faa\u73af\u8bed\u53e5\uff0c\u7528\u4e8e\u6839\u636e\u7ed9\u5b9a\u7684\u6761\u4ef6\u6267\u884c\u4e0d\u540c\u7684\u4ee3\u7801\u5757\u6216\u91cd\u590d\u6267\u884c\u4ee3\u7801\u5757\u3002\u5728\u7a0b\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9b\u8bed\u53e5\u6765\u5b9e\u73b0\u4e0d\u540c\u7684\u903b\u8f91\u548c\u529f\u80fd\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin \u5b9a\u4e49\u548c\u8c03\u7528\u51fd\u6570<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u51fd\u6570\u662f\u4e00\u6bb5\u53ef\u6267\u884c\u7684\u4ee3\u7801\uff0c\u7528\u4e8e\u5b8c\u6210\u7279\u5b9a\u7684\u4efb\u52a1\u6216\u64cd\u4f5c\u3002Kotlin \u4e2d\u7684\u51fd\u6570\u5b9a\u4e49\u7531\u51fd\u6570\u540d\u3001\u51fd\u6570\u53c2\u6570\u3001\u51fd\u6570\u4f53\u548c\u8fd4\u56de\u503c\u7ec4\u6210\u3002\u4ee5\u4e0b\u662f Kotlin \u4e2d\u5b9a\u4e49\u548c\u8c03\u7528\u51fd\u6570\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u51fd\u6570\uff1a Kotlin \u4e2d\u5b9a\u4e49\u51fd\u6570\u4f7f\u7528 fun \u5173\u952e\u5b57\uff0c\u51fd\u6570\u5b9a\u4e49\u5305\u62ec\u51fd\u6570\u540d\u3001\u53c2\u6570\u5217\u8868\u3001\u51fd\u6570\u4f53\u548c\u8fd4\u56de\u7c7b\u578b\uff08\u53ef\u9009\uff09\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a sum \u7684\u51fd\u6570\uff0c\u7528\u4e8e\u8ba1\u7b97\u4e24\u4e2a\u6574\u6570\u7684\u548c\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun sum(a: Int, b: Int): Int {\n    return a + b\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u51fd\u6570\u540d\u4e3a sum\uff0c\u53c2\u6570\u5217\u8868\u4e3a a \u548c b\uff0c\u7c7b\u578b\u5747\u4e3a Int\uff0c\u51fd\u6570\u4f53\u4e3a a + b\uff0c\u8fd4\u56de\u7c7b\u578b\u4e3a Int\u3002\u6ce8\u610f\uff0c\u5982\u679c\u51fd\u6570\u4f53\u53ea\u6709\u4e00\u884c\u4ee3\u7801\uff0c\u53ef\u4ee5\u4f7f\u7528\u7b80\u5316\u7684\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun sum(a: Int, b: Int) = a + b\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8c03\u7528\u51fd\u6570\uff1a Kotlin \u4e2d\u8c03\u7528\u51fd\u6570\u4f7f\u7528\u51fd\u6570\u540d\u548c\u53c2\u6570\u5217\u8868\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u8c03\u7528\u4e86\u4e0a\u8ff0\u5b9a\u4e49\u7684 sum \u51fd\u6570\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>val a = 10\nval b = 5\nval result = sum(a, b)\nprintln(\"The sum of $a and $b is $result\")\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528\u53d8\u91cf a \u548c b \u4f5c\u4e3a\u53c2\u6570\u8c03\u7528\u4e86\u51fd\u6570 sum\uff0c\u5c06\u8ba1\u7b97\u7ed3\u679c\u5b58\u50a8\u5728 result \u53d8\u91cf\u4e2d\uff0c\u5e76\u5c06\u7ed3\u679c\u6253\u5370\u5230\u63a7\u5236\u53f0\u4e0a\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u5b9a\u4e49\u51fd\u6570\u4f7f\u7528 fun \u5173\u952e\u5b57\uff0c\u5305\u62ec\u51fd\u6570\u540d\u3001\u53c2\u6570\u5217\u8868\u3001\u51fd\u6570\u4f53\u548c\u8fd4\u56de\u7c7b\u578b\uff08\u53ef\u9009\uff09\u3002\u8c03\u7528\u51fd\u6570\u4f7f\u7528\u51fd\u6570\u540d\u548c\u53c2\u6570\u5217\u8868\u3002\u51fd\u6570\u7684\u4f5c\u7528\u662f\u6267\u884c\u7279\u5b9a\u7684\u4efb\u52a1\u6216\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7a0b\u5e8f\u5b9e\u73b0\u590d\u6742\u7684\u903b\u8f91\u548c\u529f\u80fd\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin \u51fd\u6570\u53c2\u6570<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u51fd\u6570\u53c2\u6570\u662f\u51fd\u6570\u5b9a\u4e49\u4e2d\u7684\u4e00\u90e8\u5206\uff0c\u7528\u4e8e\u4f20\u9012\u6570\u636e\u6216\u503c\u7ed9\u51fd\u6570\u4f53\u3002\u51fd\u6570\u53c2\u6570\u53ef\u4ee5\u5206\u4e3a\u4e24\u7c7b\uff1a\u6709\u9ed8\u8ba4\u503c\u7684\u53c2\u6570\u548c\u65e0\u9ed8\u8ba4\u503c\u7684\u53c2\u6570\u3002\u4ee5\u4e0b\u662f Kotlin \u4e2d\u51fd\u6570\u53c2\u6570\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6709\u9ed8\u8ba4\u503c\u7684\u53c2\u6570\uff1a \u5728 Kotlin \u4e2d\uff0c\u51fd\u6570\u53c2\u6570\u53ef\u4ee5\u6307\u5b9a\u9ed8\u8ba4\u503c\uff0c\u8fd9\u6837\u5728\u51fd\u6570\u8c03\u7528\u65f6\u53ef\u4ee5\u4e0d\u4f20\u9012\u8fd9\u4e2a\u53c2\u6570\uff0c\u8fd9\u4e2a\u53c2\u6570\u5c06\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002\u6709\u9ed8\u8ba4\u503c\u7684\u53c2\u6570\u5728\u51fd\u6570\u5b9a\u4e49\u4e2d\u53ef\u4ee5\u6307\u5b9a\u9ed8\u8ba4\u503c\uff0c\u4e5f\u53ef\u4ee5\u5728\u51fd\u6570\u8c03\u7528\u4e2d\u7701\u7565\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a multiply \u7684\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u5c06\u4e24\u4e2a\u6574\u6570\u76f8\u4e58\uff0c\u5e76\u4e14\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6709\u9ed8\u8ba4\u503c 1\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun multiply(a: Int, b: Int = 1): Int {\n    return a * b\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u51fd\u6570\u540d\u4e3a multiply\uff0c\u53c2\u6570\u5217\u8868\u4e3a a \u548c b\uff0c\u7c7b\u578b\u5747\u4e3a Int\uff0c\u51fd\u6570\u4f53\u4e3a a * b\uff0c\u8fd4\u56de\u7c7b\u578b\u4e3a Int\u3002\u6ce8\u610f\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570 b \u6307\u5b9a\u4e86\u9ed8\u8ba4\u503c 1\u3002\u56e0\u6b64\uff0c\u4ee5\u4e0b\u4ee3\u7801\u662f\u5408\u6cd5\u7684\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>val a = 10\nval result = multiply(a)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7701\u7565\u4e86\u7b2c\u4e8c\u4e2a\u53c2\u6570 b\uff0c\u56e0\u6b64\u5c06\u4f7f\u7528\u9ed8\u8ba4\u503c 1\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u65e0\u9ed8\u8ba4\u503c\u7684\u53c2\u6570\uff1a Kotlin \u4e2d\u7684\u51fd\u6570\u53c2\u6570\u4e5f\u53ef\u4ee5\u6307\u5b9a\u65e0\u9ed8\u8ba4\u503c\uff0c\u8fd9\u610f\u5473\u7740\u5728\u51fd\u6570\u8c03\u7528\u65f6\u5fc5\u987b\u4f20\u9012\u8be5\u53c2\u6570\u7684\u503c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a greet \u7684\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u7528\u4e8e\u5411\u6307\u5b9a\u7684\u4eba\u5458\u6253\u62db\u547c\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun greet(name: String) {\n    println(\"Hello, $name!\")\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u51fd\u6570\u540d\u4e3a greet\uff0c\u53c2\u6570\u5217\u8868\u4e3a name\uff0c\u7c7b\u578b\u4e3a String\uff0c\u51fd\u6570\u4f53\u4e3a\u6253\u5370\u4e00\u6761\u95ee\u5019\u8bed\u3002\u7531\u4e8e\u53c2\u6570 name \u6ca1\u6709\u9ed8\u8ba4\u503c\uff0c\u56e0\u6b64\u5728\u51fd\u6570\u8c03\u7528\u65f6\u5fc5\u987b\u4f20\u9012\u8be5\u53c2\u6570\u7684\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javaCopy code<code>val name = \"John\"\ngreet(name)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f20\u9012\u4e86\u53d8\u91cf name \u7684\u503c\u4f5c\u4e3a\u53c2\u6570\u8c03\u7528\u4e86\u51fd\u6570 greet\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u51fd\u6570\u53c2\u6570\u53ef\u4ee5\u6307\u5b9a\u9ed8\u8ba4\u503c\u6216\u65e0\u9ed8\u8ba4\u503c\u3002\u6709\u9ed8\u8ba4\u503c\u7684\u53c2\u6570\u53ef\u4ee5\u5728\u51fd\u6570\u8c03\u7528\u65f6\u7701\u7565\uff0c\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002\u65e0\u9ed8\u8ba4\u503c\u7684\u53c2\u6570\u5fc5\u987b\u5728\u51fd\u6570\u8c03\u7528\u65f6\u4f20\u9012\u8be5\u53c2\u6570\u7684\u503c\u3002\u51fd\u6570\u53c2\u6570\u53ef\u4ee5\u5e2e\u52a9\u7a0b\u5e8f\u5728\u6267\u884c\u51fd\u6570\u65f6\u4f20\u9012\u6570\u636e\u6216\u503c\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin \u51fd\u6570\u8fd4\u56de\u503c<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u51fd\u6570\u8fd4\u56de\u503c\u7528\u4e8e\u5c06\u8ba1\u7b97\u7ed3\u679c\u8fd4\u56de\u7ed9\u51fd\u6570\u8c03\u7528\u8005\u3002\u51fd\u6570\u8fd4\u56de\u503c\u7684\u7c7b\u578b\u53ef\u4ee5\u662f\u4efb\u4f55\u7c7b\u578b\uff0c\u5305\u62ec\u57fa\u672c\u6570\u636e\u7c7b\u578b\u3001\u5bf9\u8c61\u3001\u6570\u7ec4\u3001\u96c6\u5408\u7b49\u3002\u4ee5\u4e0b\u662f Kotlin \u4e2d\u51fd\u6570\u8fd4\u56de\u503c\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8fd4\u56de\u5355\u4e2a\u503c\uff1a Kotlin \u4e2d\u7684\u51fd\u6570\u53ef\u4ee5\u8fd4\u56de\u4e00\u4e2a\u5355\u72ec\u7684\u503c\uff0c\u4f7f\u7528 return \u5173\u952e\u5b57\u8fd4\u56de\u8be5\u503c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a sum \u7684\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u5c06\u4e24\u4e2a\u6574\u6570\u76f8\u52a0\uff0c\u5e76\u8fd4\u56de\u5b83\u4eec\u7684\u548c\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun sum(a: Int, b: Int): Int {\n    return a + b\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u51fd\u6570\u540d\u4e3a sum\uff0c\u53c2\u6570\u5217\u8868\u4e3a a \u548c b\uff0c\u7c7b\u578b\u5747\u4e3a Int\uff0c\u51fd\u6570\u4f53\u4e3a a + b\uff0c\u8fd4\u56de\u7c7b\u578b\u4e3a Int\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8fd4\u56de\u591a\u4e2a\u503c\uff1a \u5728 Kotlin \u4e2d\uff0c\u51fd\u6570\u53ef\u4ee5\u4f7f\u7528 Pair\u3001Triple \u6216\u81ea\u5b9a\u4e49\u6570\u636e\u7c7b\u7b49\u6570\u636e\u7c7b\u578b\u6765\u8fd4\u56de\u591a\u4e2a\u503c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a getPersonInfo \u7684\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u5c06\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u4e2a\u4eba\u59d3\u540d\u548c\u5e74\u9f84\u7684 Pair \u5bf9\u8c61\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun getPersonInfo(): Pair&lt;String, Int&gt; {\n    val name = \"John\"\n    val age = 30\n    return Pair(name, age)\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u51fd\u6570\u540d\u4e3a getPersonInfo\uff0c\u6ca1\u6709\u53c2\u6570\uff0c\u51fd\u6570\u4f53\u5b9a\u4e49\u4e86\u53d8\u91cf name \u548c age\uff0c\u5e76\u8fd4\u56de\u4e86\u4e00\u4e2a Pair \u5bf9\u8c61\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u8fd4\u56de\u65e0\u503c\uff1a \u5728 Kotlin \u4e2d\uff0c\u51fd\u6570\u53ef\u4ee5\u4e0d\u8fd4\u56de\u4efb\u4f55\u503c\uff0c\u8fd9\u79cd\u51fd\u6570\u79f0\u4e3a\u65e0\u8fd4\u56de\u503c\u51fd\u6570\uff0c\u4f7f\u7528 Unit \u7c7b\u578b\u8868\u793a\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a greet \u7684\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u5c06\u5411\u6307\u5b9a\u7684\u4eba\u5458\u6253\u62db\u547c\uff0c\u4f46\u4e0d\u8fd4\u56de\u4efb\u4f55\u503c\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun greet(name: String) {\n    println(\"Hello, $name!\")\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u51fd\u6570\u540d\u4e3a greet\uff0c\u53c2\u6570\u5217\u8868\u4e3a name\uff0c\u7c7b\u578b\u4e3a String\uff0c\u51fd\u6570\u4f53\u4e3a\u6253\u5370\u4e00\u6761\u95ee\u5019\u8bed\uff0c\u4f46\u6ca1\u6709\u8fd4\u56de\u503c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u51fd\u6570\u8fd4\u56de\u503c\u7528\u4e8e\u5c06\u8ba1\u7b97\u7ed3\u679c\u8fd4\u56de\u7ed9\u51fd\u6570\u8c03\u7528\u8005\u3002\u51fd\u6570\u8fd4\u56de\u503c\u7684\u7c7b\u578b\u53ef\u4ee5\u662f\u4efb\u4f55\u7c7b\u578b\uff0c\u5305\u62ec\u57fa\u672c\u6570\u636e\u7c7b\u578b\u3001\u5bf9\u8c61\u3001\u6570\u7ec4\u3001\u96c6\u5408\u7b49\u3002\u51fd\u6570\u53ef\u4ee5\u8fd4\u56de\u5355\u4e2a\u503c\u3001\u591a\u4e2a\u503c\u6216\u65e0\u503c\uff0c\u5206\u522b\u4f7f\u7528\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b\u8868\u793a\u3002\u5728\u51fd\u6570\u5b9a\u4e49\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 return \u5173\u952e\u5b57\u6765\u8fd4\u56de\u8ba1\u7b97\u7ed3\u679c\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin \u7c7b\u548c\u5bf9\u8c61\u7c7b\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u7c7b\u662f\u4e00\u79cd\u62bd\u8c61\u7684\u6570\u636e\u7c7b\u578b\uff0c\u7528\u4e8e\u5b9a\u4e49\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u884c\u4e3a\u3002\u5bf9\u8c61\u662f\u7c7b\u7684\u5b9e\u4f8b\uff0c\u5305\u62ec\u5bf9\u8c61\u7684\u72b6\u6001\u548c\u884c\u4e3a\u3002\u4ee5\u4e0b\u662f Kotlin \u4e2d\u7c7b\u548c\u5bf9\u8c61\u7684\u5b9a\u4e49\u548c\u4f7f\u7528\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u7c7b\uff1a \u5728 Kotlin \u4e2d\uff0c\u7c7b\u7684\u5b9a\u4e49\u4f7f\u7528 class \u5173\u952e\u5b57\uff0c\u5305\u62ec\u7c7b\u540d\u3001\u7c7b\u5934\u548c\u7c7b\u4f53\u3002\u7c7b\u5934\u5305\u62ec\u7c7b\u540d\u3001\u7c7b\u7684\u4e3b\u6784\u9020\u51fd\u6570\u548c\u7c7b\u7684\u6b21\u6784\u9020\u51fd\u6570\uff08\u53ef\u9009\uff09\u3002\u7c7b\u4f53\u5305\u62ec\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a Person \u7684\u7c7b\uff0c\u8be5\u7c7b\u5305\u62ec\u4e00\u4e2a\u540d\u4e3a name \u7684\u5c5e\u6027\u548c\u4e00\u4e2a\u540d\u4e3a sayHello \u7684\u65b9\u6cd5\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>class Person(name: String) {\n    var name: String = name\n\n    fun sayHello() {\n        println(\"Hello, my name is $name\")\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7c7b\u540d\u4e3a Person\uff0c\u7c7b\u7684\u4e3b\u6784\u9020\u51fd\u6570\u5305\u62ec\u4e00\u4e2a\u540d\u4e3a name \u7684\u53c2\u6570\u3002\u7c7b\u7684\u5c5e\u6027\u5305\u62ec\u4e00\u4e2a\u540d\u4e3a name \u7684\u5c5e\u6027\uff0c\u8be5\u5c5e\u6027\u4f7f\u7528\u6784\u9020\u51fd\u6570\u4e2d\u7684 name \u53c2\u6570\u8fdb\u884c\u521d\u59cb\u5316\u3002\u7c7b\u7684\u65b9\u6cd5\u5305\u62ec\u4e00\u4e2a\u540d\u4e3a sayHello \u7684\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u5c06\u6253\u5370\u4e00\u6761\u95ee\u5019\u8bed\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u521b\u5efa\u5bf9\u8c61\uff1a \u5728 Kotlin \u4e2d\uff0c\u4f7f\u7528\u7c7b\u540d\u548c\u6784\u9020\u51fd\u6570\u53c2\u6570\u53ef\u4ee5\u521b\u5efa\u7c7b\u7684\u5bf9\u8c61\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a john \u7684 Person \u5bf9\u8c61\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">javaCopy code<code>val john = Person(\"John\")\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528 Person \u7c7b\u7684\u6784\u9020\u51fd\u6570\u548c\u53c2\u6570 &#8220;John&#8221; \u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a john \u7684 Person \u5bf9\u8c61\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u4f7f\u7528\u5bf9\u8c61\uff1a \u5728 Kotlin \u4e2d\uff0c\u4f7f\u7528\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u53ef\u4ee5\u8bbf\u95ee\u548c\u4fee\u6539\u5bf9\u8c61\u7684\u72b6\u6001\u548c\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u8bbf\u95ee\u4e86\u4e0a\u8ff0\u521b\u5efa\u7684 john \u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>println(john.name)\njohn.sayHello()\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528\u5bf9\u8c61\u540d john \u8bbf\u95ee\u4e86\u5bf9\u8c61\u7684\u5c5e\u6027 name\uff0c\u5c06\u5176\u6253\u5370\u5230\u63a7\u5236\u53f0\u4e0a\u3002\u7136\u540e\u8c03\u7528\u5bf9\u8c61\u7684\u65b9\u6cd5 sayHello\uff0c\u6253\u5370\u4e00\u6761\u95ee\u5019\u8bed\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u7c7b\u662f\u4e00\u79cd\u62bd\u8c61\u7684\u6570\u636e\u7c7b\u578b\uff0c\u7528\u4e8e\u5b9a\u4e49\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u884c\u4e3a\u3002\u5bf9\u8c61\u662f\u7c7b\u7684\u5b9e\u4f8b\uff0c\u5305\u62ec\u5bf9\u8c61\u7684\u72b6\u6001\u548c\u884c\u4e3a\u3002\u5728 Kotlin \u4e2d\uff0c\u4f7f\u7528 class \u5173\u952e\u5b57\u5b9a\u4e49\u7c7b\uff0c\u5305\u62ec\u7c7b\u540d\u3001\u7c7b\u5934\u548c\u7c7b\u4f53\u3002\u4f7f\u7528\u7c7b\u540d\u548c\u6784\u9020\u51fd\u6570\u53c2\u6570\u53ef\u4ee5\u521b\u5efa\u7c7b\u7684\u5bf9\u8c61\u3002\u4f7f\u7528\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u53ef\u4ee5\u8bbf\u95ee\u548c\u4fee\u6539\u5bf9\u8c61\u7684\u72b6\u6001\u548c\u884c\u4e3a\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin \u7c7b\u548c\u5bf9\u8c61\u7c7b\u7684\u5bf9\u8c61\u7684\u521b\u5efa\u548c\u4f7f\u7528<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u7c7b\u548c\u5bf9\u8c61\u7c7b\u90fd\u53ef\u4ee5\u7528\u4e8e\u521b\u5efa\u5bf9\u8c61\u3002\u5bf9\u8c61\u662f\u7c7b\u7684\u5b9e\u4f8b\uff0c\u5177\u6709\u7c7b\u5b9a\u4e49\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f Kotlin \u4e2d\u7c7b\u548c\u5bf9\u8c61\u7c7b\u7684\u5bf9\u8c61\u521b\u5efa\u548c\u4f7f\u7528\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u521b\u5efa\u7c7b\u7684\u5bf9\u8c61\uff1a \u8981\u521b\u5efa\u7c7b\u7684\u5bf9\u8c61\uff0c\u9700\u8981\u4f7f\u7528\u7c7b\u7684\u6784\u9020\u51fd\u6570\u3002\u5728 Kotlin \u4e2d\uff0c\u6784\u9020\u51fd\u6570\u53ef\u4ee5\u662f\u4e3b\u6784\u9020\u51fd\u6570\u6216\u6b21\u6784\u9020\u51fd\u6570\u3002\u4e3b\u6784\u9020\u51fd\u6570\u662f\u7c7b\u5934\u7684\u4e00\u90e8\u5206\uff0c\u6b21\u6784\u9020\u51fd\u6570\u5219\u662f\u7c7b\u4f53\u5185\u5b9a\u4e49\u7684\u51fd\u6570\u3002\u4ee5\u4e0b\u662f\u521b\u5efa\u7c7b\u7684\u5bf9\u8c61\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>class Person(val name: String) {\n    fun greet() {\n        println(\"Hello, my name is $name\")\n    }\n}\n\nval john = Person(\"John\")\njohn.greet()\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a Person \u7684\u7c7b\uff0c\u8be5\u7c7b\u5177\u6709\u4e00\u4e2a\u540d\u4e3a name \u7684\u5c5e\u6027\u548c\u4e00\u4e2a\u540d\u4e3a greet \u7684\u65b9\u6cd5\u3002\u6211\u4eec\u4f7f\u7528 <code>val john = Person(\"John\")<\/code> \u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a john \u7684 Person \u5bf9\u8c61\uff0c\u5e76\u4f7f\u7528 <code>john.greet()<\/code> \u8c03\u7528\u4e86\u5b83\u7684 greet \u65b9\u6cd5\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u521b\u5efa\u5bf9\u8c61\u7c7b\u7684\u5bf9\u8c61\uff1a \u8981\u521b\u5efa\u5bf9\u8c61\u7c7b\u7684\u5bf9\u8c61\uff0c\u53ea\u9700\u8981\u4f7f\u7528\u5bf9\u8c61\u540d\u5373\u53ef\u3002\u5bf9\u8c61\u7c7b\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u7c7b\uff0c\u53ea\u6709\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u5e76\u5728\u7a0b\u5e8f\u8fd0\u884c\u65f6\u521b\u5efa\u3002\u4ee5\u4e0b\u662f\u521b\u5efa\u5bf9\u8c61\u7c7b\u7684\u5bf9\u8c61\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>object Logger {\n    fun log(message: String) {\n        println(\"[LOG] $message\")\n    }\n}\n\nLogger.log(\"Hello, world!\")\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a Logger \u7684\u5bf9\u8c61\u7c7b\uff0c\u8be5\u7c7b\u5177\u6709\u4e00\u4e2a\u540d\u4e3a log \u7684\u65b9\u6cd5\u3002\u6211\u4eec\u4f7f\u7528 <code>Logger.log(\"Hello, world!\")<\/code> \u8c03\u7528\u4e86\u5b83\u7684 log \u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u7c7b\u548c\u5bf9\u8c61\u7c7b\u90fd\u53ef\u4ee5\u7528\u4e8e\u521b\u5efa\u5bf9\u8c61\u3002\u8981\u521b\u5efa\u7c7b\u7684\u5bf9\u8c61\uff0c\u9700\u8981\u4f7f\u7528\u7c7b\u7684\u6784\u9020\u51fd\u6570\uff0c\u53ef\u4ee5\u662f\u4e3b\u6784\u9020\u51fd\u6570\u6216\u6b21\u6784\u9020\u51fd\u6570\u3002\u8981\u521b\u5efa\u5bf9\u8c61\u7c7b\u7684\u5bf9\u8c61\uff0c\u53ea\u9700\u8981\u4f7f\u7528\u5bf9\u8c61\u540d\u5373\u53ef\u3002\u5728\u7a0b\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u6765\u8bbf\u95ee\u548c\u4fee\u6539\u5bf9\u8c61\u7684\u72b6\u6001\u548c\u884c\u4e3a\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin \u7c7b\u548c\u5bf9\u8c61\u7c7b\u7684\u7ee7\u627f\u548c\u591a\u6001<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u7c7b\u548c\u5bf9\u8c61\u7c7b\u53ef\u4ee5\u4f7f\u7528\u7ee7\u627f\u548c\u591a\u6001\u6765\u6269\u5c55\u73b0\u6709\u7684\u7c7b\u548c\u5bf9\u8c61\u7c7b\u3002\u7ee7\u627f\u662f\u4e00\u79cd\u521b\u5efa\u65b0\u7c7b\u7684\u65b9\u5f0f\uff0c\u8fd9\u4e2a\u65b0\u7c7b\u5177\u6709\u73b0\u6709\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u591a\u6001\u662f\u4e00\u79cd\u5141\u8bb8\u4e0d\u540c\u7c7b\u578b\u7684\u5bf9\u8c61\u5728\u540c\u4e00\u63a5\u53e3\u4e0b\u5de5\u4f5c\u7684\u80fd\u529b\u3002\u4ee5\u4e0b\u662f Kotlin \u4e2d\u7c7b\u548c\u5bf9\u8c61\u7c7b\u7684\u7ee7\u627f\u548c\u591a\u6001\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7ee7\u627f\uff1a \u5728 Kotlin \u4e2d\uff0c\u4f7f\u7528\u5192\u53f7\uff08:\uff09\u8868\u793a\u4e00\u4e2a\u7c7b\u7ee7\u627f\u81ea\u53e6\u4e00\u4e2a\u7c7b\u3002\u5728\u5b50\u7c7b\u4e2d\u53ef\u4ee5\u8bbf\u95ee\u7236\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u4e5f\u53ef\u4ee5\u8986\u76d6\u7236\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u7ee7\u627f\u521b\u5efa\u5b50\u7c7b\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>open class Animal(val name: String) {\n    open fun makeSound() {\n        println(\"The animal is making a sound\")\n    }\n}\n\nclass Dog(name: String) : Animal(name) {\n    override fun makeSound() {\n        println(\"The dog is barking\")\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a Animal \u7684\u7236\u7c7b\uff0c\u8be5\u7c7b\u5305\u542b\u4e00\u4e2a\u540d\u4e3a name \u7684\u5c5e\u6027\u548c\u4e00\u4e2a\u540d\u4e3a makeSound \u7684\u65b9\u6cd5\u3002\u6211\u4eec\u4f7f\u7528 <code>open<\/code> \u5173\u952e\u5b57\u8868\u793a\u8fd9\u4e2a\u7c7b\u53ef\u4ee5\u88ab\u7ee7\u627f\u3002\u6211\u4eec\u8fd8\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a Dog \u7684\u5b50\u7c7b\uff0c\u8be5\u7c7b\u7ee7\u627f\u4e86 Animal \u7c7b\uff0c\u5305\u542b\u4e86\u4e00\u4e2a\u540d\u4e3a makeSound \u7684\u65b9\u6cd5\u3002\u6211\u4eec\u4f7f\u7528 <code>override<\/code> \u5173\u952e\u5b57\u6765\u8986\u76d6 Animal \u7c7b\u7684 makeSound \u65b9\u6cd5\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u591a\u6001\uff1a \u5728 Kotlin \u4e2d\uff0c\u591a\u6001\u662f\u4e00\u79cd\u5141\u8bb8\u4e0d\u540c\u7c7b\u578b\u7684\u5bf9\u8c61\u5728\u540c\u4e00\u63a5\u53e3\u4e0b\u5de5\u4f5c\u7684\u80fd\u529b\u3002\u4f7f\u7528\u591a\u6001\uff0c\u53ef\u4ee5\u901a\u8fc7\u63a5\u53e3\u6765\u64cd\u4f5c\u4e00\u7ec4\u4e0d\u540c\u7684\u5bf9\u8c61\uff0c\u8fd9\u4e9b\u5bf9\u8c61\u90fd\u5b9e\u73b0\u4e86\u76f8\u540c\u7684\u63a5\u53e3\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u591a\u6001\u521b\u5efa\u5bf9\u8c61\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>interface Shape {\n    fun draw()\n}\n\nclass Circle : Shape {\n    override fun draw() {\n        println(\"Drawing a circle\")\n    }\n}\n\nclass Rectangle : Shape {\n    override fun draw() {\n        println(\"Drawing a rectangle\")\n    }\n}\n\nfun main() {\n    val shapes = arrayOf(Circle(), Rectangle())\n\n    for (shape in shapes) {\n        shape.draw()\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a Shape \u7684\u63a5\u53e3\uff0c\u8be5\u63a5\u53e3\u5305\u542b\u4e00\u4e2a\u540d\u4e3a draw \u7684\u65b9\u6cd5\u3002\u6211\u4eec\u8fd8\u5b9a\u4e49\u4e86\u4e24\u4e2a\u7c7b Circle \u548c Rectangle\uff0c\u5b83\u4eec\u90fd\u5b9e\u73b0\u4e86 Shape \u63a5\u53e3\u3002\u5728\u4e3b\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u5305\u542b Circle \u548c Rectangle \u5bf9\u8c61\u7684\u6570\u7ec4\uff0c\u5e76\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5bf9\u8c61\uff0c\u5e76\u4f7f\u7528\u591a\u6001\u8c03\u7528\u4e86\u5b83\u4eec\u7684 draw \u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u4f7f\u7528\u7ee7\u627f\u548c\u591a\u6001\u53ef\u4ee5\u6269\u5c55\u73b0\u6709\u7684\u7c7b\u548c\u5bf9\u8c61\u7c7b\u3002\u7ee7\u627f\u662f\u4e00\u79cd\u521b\u5efa\u65b0\u7c7b\u7684\u65b9\u5f0f\uff0c\u8fd9\u4e2a\u65b0\u7c7b\u5177\u6709\u73b0\u6709\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u591a\u6001\u662f\u4e00\u79cd\u5141\u8bb8\u4e0d\u540c\u7c7b\u578b\u7684\u5bf9\u8c61\u5728\u540c\u4e00\u63a5\u53e3\u4e0b\u5de5\u4f5c\u7684\u80fd\u529b\u3002\u4f7f\u7528\u7ee7\u627f\u548c\u591a\u6001\uff0c\u53ef\u4ee5\u521b\u5efa\u53ef\u590d\u7528\u7684\u4ee3\u7801\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin Lambda\u8868\u8fbe\u5f0f\u548c\u9ad8\u9636\u51fd\u6570 Lambda\u8868\u8fbe\u5f0f\u7684\u57fa\u672c\u8bed\u6cd5<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0cLambda \u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u533f\u540d\u51fd\u6570\uff0c\u53ef\u4ee5\u4f20\u9012\u7ed9\u5176\u4ed6\u51fd\u6570\u6216\u5b58\u50a8\u5728\u53d8\u91cf\u4e2d\u3002\u9ad8\u9636\u51fd\u6570\u662f\u4e00\u79cd\u63a5\u53d7\u4e00\u4e2a\u6216\u591a\u4e2a Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\u6216\u8fd4\u56de\u4e00\u4e2a Lambda \u8868\u8fbe\u5f0f\u7684\u51fd\u6570\u3002\u4ee5\u4e0b\u662f Kotlin \u4e2d Lambda \u8868\u8fbe\u5f0f\u548c\u9ad8\u9636\u51fd\u6570\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Lambda \u8868\u8fbe\u5f0f\u7684\u57fa\u672c\u8bed\u6cd5\uff1a Lambda \u8868\u8fbe\u5f0f\u7684\u57fa\u672c\u8bed\u6cd5\u5305\u62ec\u4e00\u4e2a\u82b1\u62ec\u53f7\u4e2d\u7684\u51fd\u6570\u4f53\u548c\u4e00\u7ec4\u53ef\u9009\u7684\u53c2\u6570\u5217\u8868\u3002Lambda \u8868\u8fbe\u5f0f\u7684\u53c2\u6570\u5217\u8868\u548c\u8fd4\u56de\u503c\u7c7b\u578b\u53ef\u4ee5\u63a8\u65ad\u51fa\u6765\uff0c\u4e5f\u53ef\u4ee5\u663e\u5f0f\u58f0\u660e\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u63a5\u53d7\u4e24\u4e2a\u6574\u6570\u5e76\u8fd4\u56de\u5b83\u4eec\u7684\u548c\u7684 Lambda \u8868\u8fbe\u5f0f\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>val sum = { a: Int, b: Int -&gt; a + b }\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a sum \u7684\u53d8\u91cf\uff0c\u5b83\u5305\u542b\u4e86\u4e00\u4e2a Lambda \u8868\u8fbe\u5f0f\uff0c\u5b83\u63a5\u53d7\u4e24\u4e2a\u6574\u6570\u5e76\u8fd4\u56de\u5b83\u4eec\u7684\u548c\u3002\u53c2\u6570\u5217\u8868\u5305\u62ec\u4e24\u4e2a\u6574\u6570\u53c2\u6570 a \u548c b\uff0c\u8fd4\u56de\u7c7b\u578b\u4e3a\u6574\u6570\u3002\u51fd\u6570\u4f53\u4e3a a + b\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u9ad8\u9636\u51fd\u6570\u7684\u57fa\u672c\u8bed\u6cd5\uff1a \u5728 Kotlin \u4e2d\uff0c\u9ad8\u9636\u51fd\u6570\u662f\u4e00\u79cd\u63a5\u53d7\u4e00\u4e2a\u6216\u591a\u4e2a Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\u6216\u8fd4\u56de\u4e00\u4e2a Lambda \u8868\u8fbe\u5f0f\u7684\u51fd\u6570\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u63a5\u53d7 Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\u7684\u9ad8\u9636\u51fd\u6570\u793a\u4f8b\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun calculate(a: Int, b: Int, operation: (Int, Int) -&gt; Int): Int {\n    return operation(a, b)\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a calculate \u7684\u51fd\u6570\uff0c\u5b83\u63a5\u53d7\u4e24\u4e2a\u6574\u6570 a \u548c b\uff0c\u5e76\u4e00\u4e2a\u540d\u4e3a operation \u7684 Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u7b2c\u4e09\u4e2a\u53c2\u6570\u3002Lambda \u8868\u8fbe\u5f0f\u7684\u53c2\u6570\u5217\u8868\u548c\u8fd4\u56de\u503c\u7c7b\u578b\u4e3a\u4e24\u4e2a\u6574\u6570\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\u3002\u51fd\u6570\u4f53\u8c03\u7528\u4e86 operation \u53c2\u6570\uff0c\u5e76\u4f20\u9012\u4e86 a \u548c b \u4f5c\u4e3a\u53c2\u6570\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 Lambda \u8868\u8fbe\u5f0f\u8c03\u7528 calculate \u51fd\u6570\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>val result = calculate(10, 20) { a, b -&gt; a + b }\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f20\u9012\u4e86\u4e00\u4e2a\u540d\u4e3a <code>{ a, b -&gt; a + b }<\/code> \u7684 Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a operation \u53c2\u6570\u3002\u8fd9\u4e2a Lambda \u8868\u8fbe\u5f0f\u63a5\u53d7\u4e24\u4e2a\u6574\u6570\u53c2\u6570 a \u548c b\uff0c\u8fd4\u56de\u5b83\u4eec\u7684\u548c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0cLambda \u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u533f\u540d\u51fd\u6570\uff0c\u53ef\u4ee5\u4f20\u9012\u7ed9\u5176\u4ed6\u51fd\u6570\u6216\u5b58\u50a8\u5728\u53d8\u91cf\u4e2d\u3002\u9ad8\u9636\u51fd\u6570\u662f\u4e00\u79cd\u63a5\u53d7\u4e00\u4e2a\u6216\u591a\u4e2a Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\u6216\u8fd4\u56de\u4e00\u4e2a Lambda \u8868\u8fbe\u5f0f\u7684\u51fd\u6570\u3002Lambda \u8868\u8fbe\u5f0f\u7684\u57fa\u672c\u8bed\u6cd5\u5305\u62ec\u4e00\u4e2a\u82b1\u62ec\u53f7\u4e2d\u7684\u51fd\u6570\u4f53\u548c\u4e00\u7ec4\u53ef\u9009\u7684\u53c2\u6570\u5217\u8868\u3002\u9ad8\u9636\u51fd\u6570\u7684\u57fa\u672c\u8bed\u6cd5\u5305\u62ec\u63a5\u53d7\u4e00\u4e2a\u6216\u591a\u4e2a Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\u6216\u8fd4\u56de\u4e00\u4e2a Lambda \u8868\u8fbe\u5f0f\u7684\u51fd\u6570\u5b9a\u4e49\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin Lambda\u8868\u8fbe\u5f0f\u548c\u9ad8\u9636\u51fd\u6570 \u9ad8\u9636\u51fd\u6570\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u9ad8\u9636\u51fd\u6570\u662f\u4e00\u79cd\u63a5\u53d7\u4e00\u4e2a\u6216\u591a\u4e2a Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\u6216\u8fd4\u56de\u4e00\u4e2a Lambda \u8868\u8fbe\u5f0f\u7684\u51fd\u6570\u3002\u9ad8\u9636\u51fd\u6570\u53ef\u4ee5\u589e\u5f3a\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u53ef\u4ee5\u4f20\u9012\u884c\u4e3a\u800c\u4e0d\u662f\u6570\u636e\u3002\u4ee5\u4e0b\u662f Kotlin \u4e2d\u9ad8\u9636\u51fd\u6570\u7684\u5b9a\u4e49\u548c\u4f7f\u7528\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u9ad8\u9636\u51fd\u6570\uff1a \u5b9a\u4e49\u9ad8\u9636\u51fd\u6570\u9700\u8981\u6307\u5b9a\u4e00\u4e2a\u6216\u591a\u4e2a Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\u3002\u53ef\u4ee5\u4f7f\u7528 <code>() -&gt; Unit<\/code> \u8868\u793a\u4e0d\u5e26\u53c2\u6570\u7684 Lambda \u8868\u8fbe\u5f0f\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528 <code>(T) -&gt; R<\/code> \u8868\u793a\u5e26\u4e00\u4e2a\u53c2\u6570\u7684 Lambda \u8868\u8fbe\u5f0f\u3002\u4ee5\u4e0b\u662f\u5b9a\u4e49\u9ad8\u9636\u51fd\u6570\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun &lt;T, R&gt; List&lt;T&gt;.map(transform: (T) -&gt; R): List&lt;R&gt; {\n    val result = mutableListOf&lt;R&gt;()\n    for (item in this) {\n        result.add(transform(item))\n    }\n    return result\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a map \u7684\u9ad8\u9636\u51fd\u6570\uff0c\u5b83\u6269\u5c55\u4e86 List \u7c7b\u578b\uff0c\u63a5\u53d7\u4e00\u4e2a <code>(T) -&gt; R<\/code> \u7c7b\u578b\u7684 Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a List&lt;R&gt; \u7c7b\u578b\u7684\u7ed3\u679c\u3002\u51fd\u6570\u4f53\u4e2d\u4f7f\u7528 for \u5faa\u73af\u904d\u5386\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5bf9\u6bcf\u4e2a\u5143\u7d20\u5e94\u7528\u4f20\u5165\u7684 Lambda \u8868\u8fbe\u5f0f\uff0c\u5e76\u5c06\u7ed3\u679c\u6dfb\u52a0\u5230\u7ed3\u679c\u5217\u8868\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u4f7f\u7528\u9ad8\u9636\u51fd\u6570\uff1a \u4f7f\u7528\u9ad8\u9636\u51fd\u6570\u53ef\u4ee5\u4f20\u9012\u884c\u4e3a\u800c\u4e0d\u662f\u6570\u636e\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5c06\u4e00\u4e2a Lambda \u8868\u8fbe\u5f0f\u4f20\u9012\u7ed9 map \u51fd\u6570\uff0c\u4ee5\u6307\u5b9a\u8981\u5e94\u7528\u7684\u8f6c\u6362\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u9ad8\u9636\u51fd\u6570\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>val numbers = listOf(1, 2, 3, 4, 5)\nval squares = numbers.map { it * it }\nprintln(squares)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a numbers \u7684\u5217\u8868\uff0c\u5305\u542b\u4e86\u4e00\u7ec4\u6574\u6570\u3002\u6211\u4eec\u4f7f\u7528 <code>numbers.map { it * it }<\/code> \u8c03\u7528 map \u51fd\u6570\uff0c\u5e76\u4f20\u9012\u4e00\u4e2a Lambda \u8868\u8fbe\u5f0f <code>{ it * it }<\/code>\uff0c\u8be5 Lambda \u8868\u8fbe\u5f0f\u63a5\u53d7\u4e00\u4e2a\u6574\u6570\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u5b83\u7684\u5e73\u65b9\u503c\u3002<code>map<\/code> \u51fd\u6570\u4f1a\u904d\u5386 <code>numbers<\/code> \u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5c06\u5b83\u4eec\u4f20\u9012\u7ed9 Lambda \u8868\u8fbe\u5f0f\u8fdb\u884c\u8f6c\u6362\uff0c\u6700\u540e\u5c06\u8f6c\u6362\u540e\u7684\u7ed3\u679c\u8fd4\u56de\u7ed9 <code>squares<\/code> \u53d8\u91cf\u3002\u6700\u540e\u6211\u4eec\u6253\u5370\u4e86 <code>squares<\/code> \u53d8\u91cf\u4e2d\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u9ad8\u9636\u51fd\u6570\u662f\u4e00\u79cd\u63a5\u53d7\u4e00\u4e2a\u6216\u591a\u4e2a Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\u6216\u8fd4\u56de\u4e00\u4e2a Lambda \u8868\u8fbe\u5f0f\u7684\u51fd\u6570\u3002\u5b9a\u4e49\u9ad8\u9636\u51fd\u6570\u9700\u8981\u6307\u5b9a\u4e00\u4e2a\u6216\u591a\u4e2a Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u6307\u5b9a\u5b83\u4eec\u7684\u7c7b\u578b\u3002\u4f7f\u7528\u9ad8\u9636\u51fd\u6570\u53ef\u4ee5\u4f20\u9012\u884c\u4e3a\u800c\u4e0d\u662f\u6570\u636e\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin Lambda\u8868\u8fbe\u5f0f\u548c\u9ad8\u9636\u51fd\u6570 \u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6982\u5ff5\u548c\u8303\u5f0f<\/p>\n\n\n\n<p>\u51fd\u6570\u5f0f\u7f16\u7a0b\u662f\u4e00\u79cd\u7f16\u7a0b\u8303\u5f0f\uff0c\u5b83\u7684\u4e3b\u8981\u601d\u60f3\u662f\u4f7f\u7528\u51fd\u6570\u4f5c\u4e3a\u57fa\u672c\u6784\u5efa\u5757\uff0c\u5e76\u5c06\u5b83\u4eec\u7ec4\u5408\u6210\u66f4\u590d\u6742\u7684\u7a0b\u5e8f\u3002\u5728\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\uff0c\u51fd\u6570\u662f\u4e00\u7b49\u516c\u6c11\uff0c\u53ef\u4ee5\u50cf\u53d8\u91cf\u4e00\u6837\u4f20\u9012\u548c\u4f7f\u7528\uff0c\u4e5f\u53ef\u4ee5\u5728\u5176\u4ed6\u51fd\u6570\u4e2d\u8fd4\u56de\u3002\u8fd9\u79cd\u7f16\u7a0b\u8303\u5f0f\u7684\u76ee\u7684\u662f\u51cf\u5c11\u526f\u4f5c\u7528\u3001\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u5e76\u7b80\u5316\u5e76\u53d1\u7f16\u7a0b\u3002<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0cLambda \u8868\u8fbe\u5f0f\u548c\u9ad8\u9636\u51fd\u6570\u662f\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u4ee5\u4e0b\u662f Kotlin \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6982\u5ff5\u548c\u8303\u5f0f\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4e0d\u53ef\u53d8\u6027\uff1a \u51fd\u6570\u5f0f\u7f16\u7a0b\u5f3a\u8c03\u4e0d\u53ef\u53d8\u6027\uff0c\u5373\u5728\u7a0b\u5e8f\u6267\u884c\u671f\u95f4\uff0c\u5bf9\u8c61\u7684\u72b6\u6001\u4e0d\u4f1a\u53d1\u751f\u53d8\u5316\u3002\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>val<\/code> \u5173\u952e\u5b57\u6765\u58f0\u660e\u4e0d\u53ef\u53d8\u53d8\u91cf\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>val list = listOf(1, 2, 3, 4, 5)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>val<\/code> \u5173\u952e\u5b57\u58f0\u660e\u4e86\u4e00\u4e2a\u540d\u4e3a list \u7684\u4e0d\u53ef\u53d8\u5217\u8868\uff0c\u5b83\u5305\u542b\u4e86\u4e00\u7ec4\u6574\u6570\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u7eaf\u51fd\u6570\uff1a \u7eaf\u51fd\u6570\u662f\u6307\u6ca1\u6709\u526f\u4f5c\u7528\u7684\u51fd\u6570\uff0c\u5b83\u7684\u7ed3\u679c\u53ea\u7531\u8f93\u5165\u51b3\u5b9a\uff0c\u4e0d\u4f1a\u5f71\u54cd\u5176\u4ed6\u53d8\u91cf\u6216\u72b6\u6001\u3002\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>fun<\/code> \u5173\u952e\u5b57\u6765\u5b9a\u4e49\u7eaf\u51fd\u6570\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun add(a: Int, b: Int): Int {\n    return a + b\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a add \u7684\u7eaf\u51fd\u6570\uff0c\u5b83\u63a5\u53d7\u4e24\u4e2a\u6574\u6570\u53c2\u6570 a \u548c b\uff0c\u5e76\u8fd4\u56de\u5b83\u4eec\u7684\u548c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u9ad8\u9636\u51fd\u6570\uff1a \u9ad8\u9636\u51fd\u6570\u662f\u6307\u63a5\u53d7\u4e00\u4e2a\u6216\u591a\u4e2a Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\u6216\u8fd4\u56de\u4e00\u4e2a Lambda \u8868\u8fbe\u5f0f\u7684\u51fd\u6570\u3002\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u9ad8\u9636\u51fd\u6570\u6765\u521b\u5efa\u66f4\u7b80\u6d01\u548c\u53ef\u8bfb\u7684\u4ee3\u7801\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun &lt;T, R&gt; List&lt;T&gt;.map(transform: (T) -&gt; R): List&lt;R&gt; {\n    val result = mutableListOf&lt;R&gt;()\n    for (item in this) {\n        result.add(transform(item))\n    }\n    return result\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a map \u7684\u9ad8\u9636\u51fd\u6570\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a <code>(T) -&gt; R<\/code> \u7c7b\u578b\u7684 Lambda \u8868\u8fbe\u5f0f\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a List&lt;R&gt; \u7c7b\u578b\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u4e0d\u53ef\u53d8\u96c6\u5408\u64cd\u4f5c\uff1a \u5728\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\uff0c\u5bf9\u4e0d\u53ef\u53d8\u96c6\u5408\u8fdb\u884c\u64cd\u4f5c\u53ef\u4ee5\u907f\u514d\u526f\u4f5c\u7528\u3002\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0d\u53ef\u53d8\u96c6\u5408\u64cd\u4f5c\u6765\u521b\u5efa\u66f4\u5b89\u5168\u548c\u6613\u4e8e\u7ef4\u62a4\u7684\u4ee3\u7801\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">javaCopy code<code>val numbers = listOf(1, 2, 3, 4, 5)\nval squares = numbers.map { it * it }\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>listOf<\/code> \u51fd\u6570\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a numbers \u7684\u4e0d\u53ef\u53d8\u5217\u8868\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>map<\/code> \u51fd\u6570\u548c Lambda \u8868\u8fbe\u5f0f <code>{ it * it }<\/code> \u5c06\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5e73\u65b9\uff0c\u5e76\u5c06\u7ed3\u679c\u4fdd\u5b58\u5728\u540d\u4e3a squares \u7684\u53d8\u91cf\u4e2d\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0cLambda \u8868\u8fbe<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u5f0f\u548c\u9ad8\u9636\u51fd\u6570\u662f\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u76ee\u7684\u662f\u51cf\u5c11\u526f\u4f5c\u7528\u3001\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u5e76\u7b80\u5316\u5e76\u53d1\u7f16\u7a0b\u3002\u5728 Kotlin \u4e2d\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u8fd8\u5305\u62ec\u4ee5\u4e0b\u6982\u5ff5\u548c\u8303\u5f0f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u51fd\u6570\u7ec4\u5408\uff1a \u51fd\u6570\u7ec4\u5408\u662f\u6307\u5c06\u591a\u4e2a\u51fd\u6570\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u51fd\u6570\u3002\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>compose<\/code> \u51fd\u6570\u548c <code>andThen<\/code> \u51fd\u6570\u6765\u5b9e\u73b0\u51fd\u6570\u7ec4\u5408\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>val addTwo = { x: Int -&gt; x + 2 }\nval multiplyByThree = { x: Int -&gt; x * 3 }\nval addTwoAndMultiplyByThree = addTwo.compose(multiplyByThree)\nval multiplyByThreeAndAddTwo = addTwo.andThen(multiplyByThree)\n\nprintln(addTwoAndMultiplyByThree(4)) \/\/ \u8f93\u51fa 14\nprintln(multiplyByThreeAndAddTwo(4)) \/\/ \u8f93\u51fa 18\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e24\u4e2a Lambda \u8868\u8fbe\u5f0f addTwo \u548c multiplyByThree\uff0c\u5206\u522b\u8868\u793a\u5c06\u8f93\u5165\u52a0 2 \u548c\u5c06\u8f93\u5165\u4e58\u4ee5 3\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>compose<\/code> \u51fd\u6570\u548c <code>andThen<\/code> \u51fd\u6570\u5c06\u8fd9\u4e24\u4e2a Lambda \u8868\u8fbe\u5f0f\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u7684\u51fd\u6570 addTwoAndMultiplyByThree \u548c multiplyByThreeAndAddTwo\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"6\">\n<li>\u5c3e\u9012\u5f52\u4f18\u5316\uff1a \u5c3e\u9012\u5f52\u662f\u6307\u9012\u5f52\u51fd\u6570\u5728\u8c03\u7528\u81ea\u8eab\u4e4b\u524d\uff0c\u4e0d\u6267\u884c\u4efb\u4f55\u5176\u4ed6\u64cd\u4f5c\uff0c\u4e5f\u4e0d\u4fdd\u5b58\u4efb\u4f55\u72b6\u6001\u3002\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>tailrec<\/code> \u5173\u952e\u5b57\u6807\u8bb0\u5c3e\u9012\u5f52\u51fd\u6570\uff0c\u8ba9\u7f16\u8bd1\u5668\u8fdb\u884c\u4f18\u5316\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>tailrec fun factorial(n: Int, acc: Int = 1): Int {\n    return if (n == 0) acc else factorial(n - 1, acc * n)\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>tailrec<\/code> \u5173\u952e\u5b57\u6807\u8bb0\u4e86\u4e00\u4e2a\u540d\u4e3a factorial \u7684\u5c3e\u9012\u5f52\u51fd\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u63a5\u53d7\u4e24\u4e2a\u6574\u6570\u53c2\u6570 n \u548c acc\uff0c\u5176\u4e2d n \u8868\u793a\u9636\u4e58\u7684\u503c\uff0cacc \u8868\u793a\u5f53\u524d\u4e58\u79ef\u7684\u503c\u3002\u51fd\u6570\u4f53\u4f7f\u7528 if \u8868\u8fbe\u5f0f\u6765\u8ba1\u7b97\u9636\u4e58\u7684\u503c\u3002\u5982\u679c n \u7b49\u4e8e 0\uff0c\u8fd4\u56de acc\uff0c\u5426\u5219\u9012\u5f52\u8c03\u7528\u81ea\u8eab\uff0c\u5e76\u5c06 n \u51cf 1 \u548c acc \u4e58\u4ee5 n\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"7\">\n<li>\u6570\u636e\u7ba1\u9053\uff1a \u6570\u636e\u7ba1\u9053\u662f\u6307\u5c06\u4e00\u4e2a\u6570\u636e\u6d41\u8f6c\u6362\u4e3a\u53e6\u4e00\u4e2a\u6570\u636e\u6d41\u7684\u8fc7\u7a0b\u3002\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 Sequence \u548c Flow \u6765\u5b9e\u73b0\u6570\u636e\u7ba1\u9053\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>val list = listOf(1, 2, 3, 4, 5)\nval result = list.asSequence()\n    .map { it * it }\n    .filter { it &gt; 10 }\n    .toList()\n\nprintln(result) \/\/ \u8f93\u51fa [16, 25]\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>asSequence<\/code> \u51fd\u6570\u5c06\u5217\u8868\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5e8f\u5217\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>map<\/code> \u51fd\u6570\u5c06\u5e8f\u5217\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5e73\u65b9\uff0c\u4f7f\u7528 <code>filter<\/code> \u51fd\u6570\u8fc7\u6ee4\u51fa\u5927\u4e8e 10 \u7684\u5143\u7d20\u3002\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>toList<\/code> \u51fd\u6570\u5c06\u7ed3\u679c\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u5e76\u6253\u5370\u51fa\u6765\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0cLambda<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u8868\u8fbe\u5f0f\u548c\u9ad8\u9636\u51fd\u6570\u662f\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u9664\u4e86\u4e0a\u8ff0\u6982\u5ff5\u548c\u8303\u5f0f\u4e4b\u5916\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u8fd8\u5305\u62ec\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"8\">\n<li>\u504f\u51fd\u6570\u5e94\u7528\uff1a \u504f\u51fd\u6570\u5e94\u7528\u662f\u6307\u5bf9\u4e00\u4e2a\u51fd\u6570\u7684\u90e8\u5206\u53c2\u6570\u8fdb\u884c\u7ed1\u5b9a\uff0c\u4ece\u800c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\u3002\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>partial<\/code> \u51fd\u6570\u548c\u51fd\u6570\u7ed1\u5b9a\u7b26\u53f7 <code>::<\/code> \u6765\u5b9e\u73b0\u504f\u51fd\u6570\u5e94\u7528\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun add(a: Int, b: Int): Int {\n    return a + b\n}\n\nval add2 = add.partial(2)\nval add3 = ::add.partial(3)\n\nprintln(add2(3)) \/\/ \u8f93\u51fa 5\nprintln(add3(4)) \/\/ \u8f93\u51fa 7\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a add \u7684\u51fd\u6570\uff0c\u5b83\u63a5\u53d7\u4e24\u4e2a\u6574\u6570\u53c2\u6570 a \u548c b\uff0c\u5e76\u8fd4\u56de\u5b83\u4eec\u7684\u548c\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>partial<\/code> \u51fd\u6570\u548c\u51fd\u6570\u7ed1\u5b9a\u7b26\u53f7 <code>::<\/code> \u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u51fd\u6570 add2 \u548c add3\u3002\u5176\u4e2d\uff0cadd2 \u51fd\u6570\u7ed1\u5b9a\u4e86\u7b2c\u4e00\u4e2a\u53c2\u6570\u4e3a 2\uff0cadd3 \u51fd\u6570\u7ed1\u5b9a\u4e86\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e3a 3\u3002\u6700\u540e\uff0c\u6211\u4eec\u5206\u522b\u8c03\u7528 add2 \u548c add3 \u51fd\u6570\uff0c\u5e76\u8f93\u51fa\u5b83\u4eec\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"9\">\n<li>\u5ef6\u8fdf\u6c42\u503c\uff1a \u5ef6\u8fdf\u6c42\u503c\u662f\u6307\u5728\u9700\u8981\u65f6\u624d\u8ba1\u7b97\u8868\u8fbe\u5f0f\u7684\u503c\u3002\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>lazy<\/code> \u5173\u952e\u5b57\u6765\u5b9a\u4e49\u5ef6\u8fdf\u6c42\u503c\u7684\u5c5e\u6027\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>val numbers = listOf(1, 2, 3, 4, 5)\nval lazySquares = lazy { numbers.map { it * it } }\n\nprintln(lazySquares.value) \/\/ \u8f93\u51fa [1, 4, 9, 16, 25]\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a numbers \u7684\u5217\u8868\uff0c\u5305\u542b\u4e86\u4e00\u7ec4\u6574\u6570\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>lazy<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a lazySquares \u7684\u5ef6\u8fdf\u6c42\u503c\u5c5e\u6027\uff0c\u5b83\u4f7f\u7528 <code>map<\/code> \u51fd\u6570\u548c Lambda \u8868\u8fbe\u5f0f <code>{ it * it }<\/code> \u6765\u8ba1\u7b97\u6bcf\u4e2a\u5143\u7d20\u7684\u5e73\u65b9\u3002\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>value<\/code> \u5c5e\u6027\u83b7\u53d6 lazySquares \u7684\u503c\uff0c\u5e76\u8f93\u51fa\u5b83\u4eec\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u662f\u4e00\u79cd\u4f7f\u7528\u51fd\u6570\u4f5c\u4e3a\u57fa\u672c\u6784\u5efa\u5757\uff0c\u5e76\u5c06\u5b83\u4eec\u7ec4\u5408\u6210\u66f4\u590d\u6742\u7684\u7a0b\u5e8f\u7684\u7f16\u7a0b\u8303\u5f0f\u3002Lambda \u8868\u8fbe\u5f0f\u548c\u9ad8\u9636\u51fd\u6570\u662f\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u540c\u65f6\u8fd8\u5305\u62ec\u51fd\u6570\u7ec4\u5408\u3001\u5c3e\u9012\u5f52\u4f18\u5316\u3001\u6570\u636e\u7ba1\u9053\u3001\u504f\u51fd\u6570\u5e94\u7528\u3001\u5ef6\u8fdf\u6c42\u503c\u7b49\u6982\u5ff5\u548c\u8303\u5f0f\u3002\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u5e76\u7b80\u5316\u5e76\u53d1\u7f16\u7a0b\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin\u6269\u5c55\u51fd\u6570\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/p>\n\n\n\n<p>Kotlin \u4e2d\u7684\u6269\u5c55\u51fd\u6570\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u5411\u5df2\u6709\u7684\u7c7b\u6dfb\u52a0\u65b0\u7684\u51fd\u6570\uff0c\u800c\u65e0\u9700\u7ee7\u627f\u6216\u4fee\u6539\u8be5\u7c7b\u7684\u6e90\u4ee3\u7801\u3002\u4f7f\u7528\u6269\u5c55\u51fd\u6570\u53ef\u4ee5\u4e3a\u73b0\u6709\u7c7b\u6dfb\u52a0\u65b0\u7684\u529f\u80fd\uff0c\u540c\u65f6\u8fd8\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f Kotlin \u4e2d\u6269\u5c55\u51fd\u6570\u7684\u5b9a\u4e49\u548c\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u6269\u5c55\u51fd\u6570\uff1a \u5b9a\u4e49\u6269\u5c55\u51fd\u6570\u9700\u8981\u4f7f\u7528 <code>fun<\/code> \u5173\u952e\u5b57\uff0c\u5e76\u5c06\u8981\u6269\u5c55\u7684\u7c7b\u4f5c\u4e3a\u63a5\u6536\u8005\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>toUppercase<\/code> \u7684\u6269\u5c55\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5927\u5199\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun String.toUppercase(): String {\n    return this.toUpperCase()\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>fun<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>toUppercase<\/code> \u7684\u6269\u5c55\u51fd\u6570\uff0c\u5b83\u6269\u5c55\u4e86 <code>String<\/code> \u7c7b\u3002\u51fd\u6570\u4f53\u4f7f\u7528 <code>toUpperCase()<\/code> \u51fd\u6570\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5927\u5199\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8c03\u7528\u6269\u5c55\u51fd\u6570\uff1a \u8c03\u7528\u6269\u5c55\u51fd\u6570\u7684\u8bed\u6cd5\u4e0e\u666e\u901a\u51fd\u6570\u7c7b\u4f3c\uff0c\u53ea\u662f\u9700\u8981\u5728\u51fd\u6570\u540d\u524d\u52a0\u4e0a\u88ab\u6269\u5c55\u7684\u7c7b\u7684\u5b9e\u4f8b\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">pythonCopy code<code>val str = \"hello\"\nprintln(str.toUppercase()) \/\/ \u8f93\u51fa \"HELLO\"\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>toUppercase()<\/code> \u51fd\u6570\u5c06\u5b57\u7b26\u4e32 <code>str<\/code> \u8f6c\u6362\u4e3a\u5927\u5199\uff0c\u5e76\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u6269\u5c55\u51fd\u6570\u7684\u6ce8\u610f\u4e8b\u9879\uff1a \u6269\u5c55\u51fd\u6570\u53ef\u4ee5\u8bbf\u95ee\u88ab\u6269\u5c55\u7684\u7c7b\u7684\u6240\u6709\u516c\u6709\u6210\u5458\u548c\u65b9\u6cd5\uff0c\u4f46\u4e0d\u80fd\u8bbf\u95ee\u79c1\u6709\u6210\u5458\u548c\u65b9\u6cd5\u3002\u540c\u65f6\uff0c\u5982\u679c\u88ab\u6269\u5c55\u7684\u7c7b\u5df2\u7ecf\u6709\u4e86\u4e0e\u6269\u5c55\u51fd\u6570\u540c\u540d\u7684\u65b9\u6cd5\uff0c\u90a3\u4e48\u6269\u5c55\u51fd\u6570\u5c06\u4e0d\u8d77\u4f5c\u7528\u3002<\/li>\n\n\n\n<li>\u6269\u5c55\u51fd\u6570\u7684\u9002\u7528\u8303\u56f4\uff1a Kotlin \u4e2d\u7684\u6269\u5c55\u51fd\u6570\u9002\u7528\u4e8e\u5f88\u591a\u7c7b\u578b\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u96c6\u5408\u3001\u6570\u7ec4\u7b49\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>sum<\/code> \u7684\u6269\u5c55\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u8ba1\u7b97\u6574\u6570\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u7684\u548c\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun IntArray.sum(): Int {\n    var sum = 0\n    for (num in this) {\n        sum += num\n    }\n    return sum\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>fun<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>sum<\/code> \u7684\u6269\u5c55\u51fd\u6570\uff0c\u5b83\u6269\u5c55\u4e86 <code>IntArray<\/code> \u7c7b\u3002\u51fd\u6570\u4f53\u4f7f\u7528 <code>for<\/code> \u5faa\u73af\u8ba1\u7b97\u6574\u6570\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u7684\u548c\u3002<\/p>\n\n\n\n<p>\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6269\u5c55\u51fd\u6570 <code>sum()<\/code> \u8ba1\u7b97\u6574\u6570\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u7684\u548c\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>val nums = intArrayOf(1, 2, 3, 4, 5)\nprintln(nums.sum()) \/\/ \u8f93\u51fa 15\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>sum()<\/code> \u51fd\u6570\u8ba1\u7b97\u6574\u6570\u6570\u7ec4 <code>nums<\/code> \u4e2d\u7684\u6240\u6709\u5143\u7d20\u7684\u548c\uff0c\u5e76\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cKotlin \u4e2d\u7684\u6269\u5c55\u51fd\u6570\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u5411\u5df2\u6709\u7684\u7c7b\u6dfb\u52a0\u65b0\u7684\u51fd\u6570\uff0c\u800c\u65e0\u9700\u7ee7\u627f\u6216\u4fee\u6539\u8be5\u7c7b\u7684\u6e90\u4ee3\u7801\u3002\u4f7f\u7528\u6269\u5c55\u51fd\u6570\u53ef\u4ee5<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin\u6269\u5c55\u5c5e\u6027\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/p>\n\n\n\n<p>Kotlin \u4e2d\u7684\u6269\u5c55\u5c5e\u6027\u4e0e\u6269\u5c55\u51fd\u6570\u7c7b\u4f3c\uff0c\u53ef\u4ee5\u5411\u5df2\u6709\u7684\u7c7b\u6dfb\u52a0\u65b0\u7684\u5c5e\u6027\uff0c\u800c\u65e0\u9700\u7ee7\u627f\u6216\u4fee\u6539\u8be5\u7c7b\u7684\u6e90\u4ee3\u7801\u3002\u4f7f\u7528\u6269\u5c55\u5c5e\u6027\u53ef\u4ee5\u4e3a\u73b0\u6709\u7c7b\u6dfb\u52a0\u65b0\u7684\u5c5e\u6027\uff0c\u540c\u65f6\u8fd8\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f Kotlin \u4e2d\u6269\u5c55\u5c5e\u6027\u7684\u5b9a\u4e49\u548c\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u6269\u5c55\u5c5e\u6027\uff1a \u5b9a\u4e49\u6269\u5c55\u5c5e\u6027\u9700\u8981\u4f7f\u7528 <code>val<\/code> \u6216 <code>var<\/code> \u5173\u952e\u5b57\uff0c\u5e76\u5c06\u8981\u6269\u5c55\u7684\u7c7b\u4f5c\u4e3a\u63a5\u6536\u8005\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>length<\/code> \u7684\u6269\u5c55\u5c5e\u6027\uff0c\u5b83\u53ef\u4ee5\u8ba1\u7b97\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>val String.length: Int\n    get() = this.length\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>val<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>length<\/code> \u7684\u6269\u5c55\u5c5e\u6027\uff0c\u5b83\u6269\u5c55\u4e86 <code>String<\/code> \u7c7b\u3002\u5c5e\u6027\u7684 <code>get()<\/code> \u65b9\u6cd5\u4f7f\u7528 <code>length<\/code> \u5c5e\u6027\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8c03\u7528\u6269\u5c55\u5c5e\u6027\uff1a \u8c03\u7528\u6269\u5c55\u5c5e\u6027\u7684\u8bed\u6cd5\u4e0e\u666e\u901a\u5c5e\u6027\u7c7b\u4f3c\uff0c\u53ea\u662f\u9700\u8981\u5728\u5c5e\u6027\u540d\u524d\u52a0\u4e0a\u88ab\u6269\u5c55\u7684\u7c7b\u7684\u5b9e\u4f8b\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">rustCopy code<code>val str = \"hello\"\nprintln(str.length) \/\/ \u8f93\u51fa 5\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>length<\/code> \u5c5e\u6027\u83b7\u53d6\u5b57\u7b26\u4e32 <code>str<\/code> \u7684\u957f\u5ea6\uff0c\u5e76\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u6269\u5c55\u5c5e\u6027\u7684\u6ce8\u610f\u4e8b\u9879\uff1a \u6269\u5c55\u5c5e\u6027\u53ef\u4ee5\u8bbf\u95ee\u88ab\u6269\u5c55\u7684\u7c7b\u7684\u6240\u6709\u516c\u6709\u6210\u5458\u548c\u65b9\u6cd5\uff0c\u4f46\u4e0d\u80fd\u8bbf\u95ee\u79c1\u6709\u6210\u5458\u548c\u65b9\u6cd5\u3002\u540c\u65f6\uff0c\u5982\u679c\u88ab\u6269\u5c55\u7684\u7c7b\u5df2\u7ecf\u6709\u4e86\u4e0e\u6269\u5c55\u5c5e\u6027\u540c\u540d\u7684\u5c5e\u6027\uff0c\u90a3\u4e48\u6269\u5c55\u5c5e\u6027\u5c06\u4e0d\u8d77\u4f5c\u7528\u3002<\/li>\n\n\n\n<li>\u6269\u5c55\u5c5e\u6027\u7684\u9002\u7528\u8303\u56f4\uff1a Kotlin \u4e2d\u7684\u6269\u5c55\u5c5e\u6027\u9002\u7528\u4e8e\u5f88\u591a\u7c7b\u578b\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u96c6\u5408\u3001\u6570\u7ec4\u7b49\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>lastIndex<\/code> \u7684\u6269\u5c55\u5c5e\u6027\uff0c\u5b83\u53ef\u4ee5\u83b7\u53d6\u6574\u6570\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>val IntArray.lastIndex: Int\n    get() = this.size - 1\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>val<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>lastIndex<\/code> \u7684\u6269\u5c55\u5c5e\u6027\uff0c\u5b83\u6269\u5c55\u4e86 <code>IntArray<\/code> \u7c7b\u3002\u5c5e\u6027\u7684 <code>get()<\/code> \u65b9\u6cd5\u4f7f\u7528 <code>size<\/code> \u5c5e\u6027\u83b7\u53d6\u6574\u6570\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u5e76\u5c06\u7ed3\u679c\u51cf 1 \u5f97\u5230\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u3002<\/p>\n\n\n\n<p>\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6269\u5c55\u5c5e\u6027 <code>lastIndex<\/code> \u83b7\u53d6\u6574\u6570\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>val nums = intArrayOf(1, 2, 3, 4, 5)\nprintln(nums.lastIndex) \/\/ \u8f93\u51fa 4\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>lastIndex<\/code> \u5c5e\u6027\u83b7\u53d6\u6574\u6570\u6570\u7ec4 <code>nums<\/code> \u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\uff0c\u5e76\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cKotlin \u4e2d\u7684\u6269\u5c55\u5c5e\u6027\u4e0e\u6269\u5c55\u51fd\u6570\u7c7b\u4f3c\uff0c\u53ef\u4ee5\u5411\u5df2\u6709\u7684\u7c7b\u6dfb\u52a0\u65b0\u7684\u5c5e\u6027\uff0c\u800c\u65e0\u9700\u7ee7\u627f\u6216\u4fee\u6539\u8be5\u7c7b\u7684\u6e90\u4ee3\u7801\u3002\u4f7f\u7528\u6269\u5c55\u5c5e\u6027\u53ef\u4ee5\u4e3a\u73b0\u6709\u7c7b\u6dfb\u52a0\u65b0\u7684\u5c5e\u6027\uff0c\u540c\u65f6\u8fd8\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u6269\u5c55\u5c5e\u6027\u7684\u8bbf\u95ee\u6743\u9650\uff1a \u5728 Kotlin \u4e2d\uff0c\u6269\u5c55\u5c5e\u6027\u7684\u8bbf\u95ee\u6743\u9650\u4e0e\u666e\u901a\u5c5e\u6027\u7684\u8bbf\u95ee\u6743\u9650\u4e00\u6837\uff0c\u53ef\u4ee5\u662f public\u3001private\u3001protected \u6216 internal\u3002\u5982\u679c\u6269\u5c55\u5c5e\u6027\u7684\u8bbf\u95ee\u6743\u9650\u662f public\uff0c\u5219\u5b83\u53ef\u4ee5\u5728\u4efb\u4f55\u5730\u65b9\u8bbf\u95ee\uff1b\u5982\u679c\u6269\u5c55\u5c5e\u6027\u7684\u8bbf\u95ee\u6743\u9650\u662f private\uff0c\u5219\u53ea\u80fd\u5728\u5f53\u524d\u6587\u4ef6\u4e2d\u8bbf\u95ee\uff1b\u5982\u679c\u6269\u5c55\u5c5e\u6027\u7684\u8bbf\u95ee\u6743\u9650\u662f protected\uff0c\u5219\u53ea\u80fd\u5728\u5f53\u524d\u6587\u4ef6\u548c\u5b50\u7c7b\u4e2d\u8bbf\u95ee\uff1b\u5982\u679c\u6269\u5c55\u5c5e\u6027\u7684\u8bbf\u95ee\u6743\u9650\u662f internal\uff0c\u5219\u53ea\u80fd\u5728\u540c\u4e00\u6a21\u5757\u4e2d\u8bbf\u95ee\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>User<\/code> \u7684\u7c7b\u548c\u4e00\u4e2a\u540d\u4e3a <code>email<\/code> \u7684\u6269\u5c55\u5c5e\u6027\uff0c\u5b83\u6269\u5c55\u4e86 <code>User<\/code> \u7c7b\uff0c\u5e76\u8bbe\u7f6e\u4e86 <code>email<\/code> \u5c5e\u6027\u7684\u8bbf\u95ee\u6743\u9650\u4e3a private\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>class User(val name: String)\n\nprivate var User.email: String\n    get() = \"${name.toLowerCase()}@example.com\"\n    set(value) { \/* do nothing *\/ }\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>User<\/code> \u7684\u7c7b\uff0c\u5b83\u6709\u4e00\u4e2a\u540d\u4e3a <code>name<\/code> \u7684\u5c5e\u6027\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>private<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>email<\/code> \u7684\u6269\u5c55\u5c5e\u6027\uff0c\u5b83\u6269\u5c55\u4e86 <code>User<\/code> \u7c7b\u3002\u5c5e\u6027\u7684 <code>get()<\/code> \u65b9\u6cd5\u5c06 <code>name<\/code> \u5c5e\u6027\u8f6c\u6362\u4e3a\u5c0f\u5199\uff0c\u5e76\u62fc\u63a5\u6210\u7535\u5b50\u90ae\u4ef6\u5730\u5740\uff1b\u5c5e\u6027\u7684 <code>set()<\/code> \u65b9\u6cd5\u4ec0\u4e48\u4e5f\u4e0d\u505a\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"6\">\n<li>\u6269\u5c55\u5c5e\u6027\u7684\u4f7f\u7528\u9650\u5236\uff1a \u4e0e\u6269\u5c55\u51fd\u6570\u4e00\u6837\uff0c\u6269\u5c55\u5c5e\u6027\u4e5f\u6709\u4e00\u4e9b\u4f7f\u7528\u9650\u5236\u3002\u4f8b\u5982\uff0c\u4e0d\u80fd\u5b9a\u4e49\u4e00\u4e2a\u540d\u4e3a <code>foo<\/code> \u7684\u6269\u5c55\u5c5e\u6027\u548c\u4e00\u4e2a\u540d\u4e3a <code>foo<\/code> \u7684\u666e\u901a\u5c5e\u6027\u3002\u6b64\u5916\uff0c\u4e0d\u80fd\u5728\u4e00\u4e2a\u6587\u4ef6\u4e2d\u540c\u65f6\u5b9a\u4e49\u4e00\u4e2a\u540d\u4e3a <code>foo<\/code> \u7684\u6269\u5c55\u5c5e\u6027\u548c\u4e00\u4e2a\u540d\u4e3a <code>foo<\/code> \u7684\u6269\u5c55\u51fd\u6570\u3002\u5982\u679c\u51fa\u73b0\u8fd9\u79cd\u60c5\u51b5\uff0c\u7f16\u8bd1\u5668\u5c06\u4f1a\u62a5\u9519\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0cKotlin \u4e2d\u7684\u6269\u5c55\u5c5e\u6027\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u5c5e\u6027\uff0c\u5b83\u53ef\u4ee5\u5411\u5df2\u6709\u7684\u7c7b\u6dfb\u52a0\u65b0\u7684\u5c5e\u6027\uff0c\u800c\u65e0\u9700\u7ee7\u627f\u6216\u4fee\u6539\u8be5\u7c7b\u7684\u6e90\u4ee3\u7801\u3002\u4f7f\u7528\u6269\u5c55\u5c5e\u6027\u53ef\u4ee5\u4e3a\u73b0\u6709\u7c7b\u6dfb\u52a0\u65b0\u7684\u5c5e\u6027\uff0c\u540c\u65f6\u8fd8\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u6269\u5c55\u5c5e\u6027\u7684\u8bbf\u95ee\u6743\u9650\u4e0e\u666e\u901a\u5c5e\u6027\u7684\u8bbf\u95ee\u6743\u9650\u4e00\u6837\uff0c\u53ef\u4ee5\u662f public\u3001private\u3001protected \u6216 internal\uff0c\u540c\u65f6\u8fd8\u6709\u4e00\u4e9b\u4f7f\u7528\u9650\u5236\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin\u6570\u636e\u7c7b\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u6570\u636e\u7c7b\u662f\u4e00\u79cd\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u7684\u7279\u6b8a\u7c7b\u3002\u6570\u636e\u7c7b\u5177\u6709\u8bb8\u591a\u6709\u7528\u7684\u7279\u6027\uff0c\u5982\u81ea\u52a8\u751f\u6210 <code>equals()<\/code>\u3001<code>hashCode()<\/code>\u3001<code>toString()<\/code> \u7b49\u65b9\u6cd5\uff0c\u4ee5\u53ca\u652f\u6301\u89e3\u6784\u548c\u590d\u5236\u64cd\u4f5c\u3002\u4f7f\u7528\u6570\u636e\u7c7b\u53ef\u4ee5\u7b80\u5316\u4ee3\u7801\uff0c\u5e76\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f Kotlin \u4e2d\u6570\u636e\u7c7b\u7684\u5b9a\u4e49\u548c\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u6570\u636e\u7c7b\uff1a \u5b9a\u4e49\u6570\u636e\u7c7b\u9700\u8981\u4f7f\u7528 <code>data class<\/code> \u5173\u952e\u5b57\uff0c\u5e76\u5728\u62ec\u53f7\u5185\u5217\u51fa\u7c7b\u7684\u5c5e\u6027\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>Person<\/code> \u7684\u6570\u636e\u7c7b\uff0c\u5b83\u6709\u4e24\u4e2a\u5c5e\u6027 <code>name<\/code> \u548c <code>age<\/code>\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>data class Person(val name: String, val age: Int)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>data class<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>Person<\/code> \u7684\u6570\u636e\u7c7b\uff0c\u5b83\u6709\u4e24\u4e2a\u5c5e\u6027 <code>name<\/code> \u548c <code>age<\/code>\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u521b\u5efa\u6570\u636e\u7c7b\u7684\u5b9e\u4f8b\uff1a \u521b\u5efa\u6570\u636e\u7c7b\u7684\u5b9e\u4f8b\u4e0e\u666e\u901a\u7c7b\u7684\u5b9e\u4f8b\u521b\u5efa\u65b9\u6cd5\u7c7b\u4f3c\uff0c\u53ea\u9700\u4f7f\u7528\u7c7b\u540d\u548c\u62ec\u53f7\uff0c\u7136\u540e\u5728\u62ec\u53f7\u4e2d\u4f20\u9012\u6784\u9020\u51fd\u6570\u53c2\u6570\u5373\u53ef\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">javaCopy code<code>val person = Person(\"Alice\", 30)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>Person<\/code> \u7c7b\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a <code>person<\/code> \u7684\u6570\u636e\u7c7b\u7684\u5b9e\u4f8b\uff0c\u5b83\u7684\u5c5e\u6027 <code>name<\/code> \u548c <code>age<\/code> \u5206\u522b\u4e3a &#8220;Alice&#8221; \u548c 30\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u6570\u636e\u7c7b\u7684\u7279\u6027\uff1a \u6570\u636e\u7c7b\u5177\u6709\u8bb8\u591a\u6709\u7528\u7684\u7279\u6027\uff0c\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u81ea\u52a8\u751f\u6210 <code>equals()<\/code>\u3001<code>hashCode()<\/code>\u3001<code>toString()<\/code> \u7b49\u65b9\u6cd5\u3002<\/li>\n\n\n\n<li>\u652f\u6301\u89e3\u6784\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u7c7b\u7684\u5c5e\u6027\u89e3\u6784\u5230\u53d8\u91cf\u4e2d\u3002<\/li>\n\n\n\n<li>\u652f\u6301\u590d\u5236\u64cd\u4f5c\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u4e0e\u5f53\u524d\u5bf9\u8c61\u5c5e\u6027\u76f8\u540c\u7684\u65b0\u5bf9\u8c61\uff0c\u5e76\u53ef\u6307\u5b9a\u65b0\u7684\u5c5e\u6027\u503c\u3002<\/li>\n\n\n\n<li>\u53ef\u4ee5\u4f7f\u7528 <code>copy()<\/code> \u65b9\u6cd5\u590d\u5236\u5bf9\u8c61\uff0c\u5e76\u4fee\u6539\u5176\u4e2d\u7684\u67d0\u4e9b\u5c5e\u6027\u503c\u3002<\/li>\n\n\n\n<li>\u53ef\u4ee5\u4f7f\u7528 <code>component1()<\/code>\u3001<code>component2()<\/code> \u7b49\u65b9\u6cd5\u83b7\u53d6\u6570\u636e\u7c7b\u7684\u5c5e\u6027\u503c\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u6570\u636e\u7c7b\u7684\u7279\u6027\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>data class Person(val name: String, val age: Int)\n\nval person1 = Person(\"Alice\", 30)\nval person2 = Person(\"Alice\", 30)\n\nprintln(person1 == person2) \/\/ \u8f93\u51fa true\uff0c\u81ea\u52a8\u751f\u6210\u7684 equals() \u65b9\u6cd5\u6bd4\u8f83\u5c5e\u6027\u503c\u662f\u5426\u76f8\u7b49\n\nval (name, age) = person1 \/\/ \u89e3\u6784\u6570\u636e\u7c7b\u7684\u5c5e\u6027\u5230\u53d8\u91cf\u4e2d\n\nval person3 = person1.copy(age = 35) \/\/ \u590d\u5236 person1 \u5bf9\u8c61\uff0c\u5e76\u4fee\u6539 age \u5c5e\u6027\n\nprintln(person3.component1()) \/\/ \u8f93\u51fa \"Alice\"\uff0c\u4f7f\u7528 component1() \u65b9\u6cd5\u83b7\u53d6 name \u5c5e\u6027\u503c\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>data class<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>Person<\/code> \u7684\u6570\u636e\u7c7b\uff0c\u5e76\u521b\u5efa\u4e86\u4e09\u4e2a\u6570\u636e\u7c7b\u7684\u5b9e\u4f8b <code>person1<\/code>\u3001<code>person2<\/code> \u548c <code>person3<\/code>\u3002\u6211\u4eec\u4f7f\u7528 <code>==<\/code> \u8fd0\u7b97\u7b26\u6bd4\u8f83 <code>person1<\/code> \u548c <code>person2<\/code> \u662f\u5426\u76f8\u7b49\uff0c\u81ea\u52a8\u751f\u6210\u7684 <code>equals()<\/code> \u65b9\u6cd5\u6bd4\u8f83\u5c5e\u6027\u503c\u662f\u5426\u76f8\u7b49\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a true\u3002\u6211\u4eec\u8fd8\u4f7f\u7528\u89e3\u6784\u64cd\u4f5c\u5c06 <code>person1<\/code> \u7684\u5c5e\u6027\u89e3\u6784\u5230 <code>name<\/code> \u548c <code>age<\/code> \u53d8\u91cf\u4e2d\uff0c\u5e76\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u6570\u636e\u7c7b\u5bf9\u8c61 <code>person3<\/code>\uff0c\u4f7f\u7528 <code>copy()<\/code> \u65b9\u6cd5\u590d\u5236\u4e86 <code>person1<\/code> \u5bf9\u8c61\uff0c\u5e76\u4fee\u6539\u4e86\u5176 <code>age<\/code> \u5c5e\u6027\u7684\u503c\u4e3a 35\uff0c\u7136\u540e\u4f7f\u7528 <code>component1()<\/code> \u65b9\u6cd5\u83b7\u53d6\u4e86 <code>person3<\/code> \u5bf9\u8c61\u7684 <code>name<\/code> \u5c5e\u6027\u7684\u503c\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a &#8220;Alice&#8221;\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u6570\u636e\u7c7b\u7684\u9650\u5236\uff1a \u6570\u636e\u7c7b\u6709\u4e00\u4e9b\u9650\u5236\uff0c\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e3b\u6784\u9020\u51fd\u6570\u5fc5\u987b\u81f3\u5c11\u6709\u4e00\u4e2a\u53c2\u6570\u3002<\/li>\n\n\n\n<li>\u4e3b\u6784\u9020\u51fd\u6570\u7684\u53c2\u6570\u5fc5\u987b\u90fd\u6807\u8bb0\u4e3a <code>val<\/code> \u6216 <code>var<\/code>\uff0c\u4ee5\u4fbf\u751f\u6210\u5bf9\u5e94\u7684 getter \u548c setter \u65b9\u6cd5\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u7c7b\u4e0d\u80fd\u662f\u62bd\u8c61\u3001\u5bc6\u5c01\u6216\u5185\u90e8\u7c7b\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u7c7b\u4e0d\u80fd\u7ee7\u627f\u5176\u4ed6\u7c7b\uff08\u4f46\u53ef\u4ee5\u5b9e\u73b0\u63a5\u53e3\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5c1d\u8bd5\u5b9a\u4e49\u4e00\u4e2a\u4e0d\u7b26\u5408\u6570\u636e\u7c7b\u8981\u6c42\u7684\u7c7b\uff0c\u7f16\u8bd1\u5668\u5c06\u4f1a\u62a5\u9519\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>class InvalidPerson(name: String, age: Int) \/\/ \u4e3b\u6784\u9020\u51fd\u6570\u6ca1\u6709\u6807\u8bb0\u4e3a val \u6216 var\n\ndata class InvalidDataPerson(val name: String, val age: Int) : SomeClass() \/\/ \u7ee7\u627f\u4e86\u5176\u4ed6\u7c7b\n\nsealed class InvalidSealedPerson(val name: String, val age: Int) \/\/ \u662f\u4e00\u4e2a\u5bc6\u5c01\u7c7b\n<\/code><\/pre>\n\n\n\n<p>\u603b\u4e4b\uff0cKotlin \u4e2d\u7684\u6570\u636e\u7c7b\u662f\u4e00\u79cd\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u7684\u7279\u6b8a\u7c7b\uff0c\u5177\u6709\u8bb8\u591a\u6709\u7528\u7684\u7279\u6027\uff0c\u5982\u81ea\u52a8\u751f\u6210 <code>equals()<\/code>\u3001<code>hashCode()<\/code>\u3001<code>toString()<\/code> \u7b49\u65b9\u6cd5\uff0c\u4ee5\u53ca\u652f\u6301\u89e3\u6784\u548c\u590d\u5236\u64cd\u4f5c\u3002\u4f7f\u7528\u6570\u636e\u7c7b\u53ef\u4ee5\u7b80\u5316\u4ee3\u7801\uff0c\u5e76\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u4f46\u662f\uff0c\u6570\u636e\u7c7b\u6709\u4e00\u4e9b\u9650\u5236\uff0c\u5982\u4e3b\u6784\u9020\u51fd\u6570\u5fc5\u987b\u81f3\u5c11\u6709\u4e00\u4e2a\u53c2\u6570\uff0c\u4e3b\u6784\u9020\u51fd\u6570\u7684\u53c2\u6570\u5fc5\u987b\u90fd\u6807\u8bb0\u4e3a <code>val<\/code> \u6216 <code>var<\/code>\uff0c\u6570\u636e\u7c7b\u4e0d\u80fd\u662f\u62bd\u8c61\u3001\u5bc6\u5c01\u6216\u5185\u90e8\u7c7b\uff0c\u4e0d\u80fd\u7ee7\u627f\u5176\u4ed6\u7c7b\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin\u5bc6\u5c01\u7c7b\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u5bc6\u5c01\u7c7b\uff08Sealed Class\uff09\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u7c7b\uff0c\u5b83\u7528\u4e8e\u8868\u793a\u53d7\u9650\u7684\u7c7b\u7ee7\u627f\u7ed3\u6784\u3002\u5bc6\u5c01\u7c7b\u7684\u5b50\u7c7b\u5fc5\u987b\u5b9a\u4e49\u5728\u540c\u4e00\u4e2a\u6587\u4ef6\u4e2d\uff0c\u5e76\u4e14\u4e0d\u80fd\u88ab\u7ee7\u627f\u6216\u6269\u5c55\uff0c\u56e0\u6b64\u5bc6\u5c01\u7c7b\u901a\u5e38\u7528\u4e8e\u5b9e\u73b0\u7c7b\u4f3c\u679a\u4e3e\u7684\u529f\u80fd\u3002\u4f7f\u7528\u5bc6\u5c01\u7c7b\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u52a0\u5b89\u5168\u3001\u53ef\u8bfb\u548c\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f Kotlin \u4e2d\u5bc6\u5c01\u7c7b\u7684\u5b9a\u4e49\u548c\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u5bc6\u5c01\u7c7b\uff1a \u5b9a\u4e49\u5bc6\u5c01\u7c7b\u9700\u8981\u4f7f\u7528 <code>sealed class<\/code> \u5173\u952e\u5b57\uff0c\u5e76\u5728\u62ec\u53f7\u5185\u5217\u51fa\u7c7b\u7684\u6240\u6709\u5b50\u7c7b\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>Expr<\/code> \u7684\u5bc6\u5c01\u7c7b\uff0c\u5b83\u6709\u4e09\u4e2a\u5b50\u7c7b <code>Const<\/code>\u3001<code>Sum<\/code> \u548c <code>Mul<\/code>\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>sealed class Expr {\n    data class Const(val number: Double) : Expr()\n    data class Sum(val left: Expr, val right: Expr) : Expr()\n    data class Mul(val left: Expr, val right: Expr) : Expr()\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>sealed class<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>Expr<\/code> \u7684\u5bc6\u5c01\u7c7b\uff0c\u5e76\u5728\u62ec\u53f7\u5185\u5217\u51fa\u4e86\u5b83\u7684\u6240\u6709\u5b50\u7c7b\u3002\u6bcf\u4e2a\u5b50\u7c7b\u90fd\u662f\u4e00\u4e2a\u6570\u636e\u7c7b\uff0c\u5b83\u4eec\u5206\u522b\u8868\u793a\u5e38\u91cf\u3001\u52a0\u6cd5\u548c\u4e58\u6cd5\u8868\u8fbe\u5f0f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u4f7f\u7528\u5bc6\u5c01\u7c7b\uff1a \u4f7f\u7528\u5bc6\u5c01\u7c7b\u65f6\uff0c\u901a\u5e38\u9700\u8981\u4f7f\u7528 <code>when<\/code> \u8868\u8fbe\u5f0f\u5339\u914d\u4e0d\u540c\u7684\u5b50\u7c7b\u3002\u7531\u4e8e\u5bc6\u5c01\u7c7b\u7684\u5b50\u7c7b\u662f\u53d7\u9650\u7684\uff0c\u56e0\u6b64\u7f16\u8bd1\u5668\u53ef\u4ee5\u5728\u7f16\u8bd1\u65f6\u68c0\u67e5 <code>when<\/code> \u8868\u8fbe\u5f0f\u662f\u5426\u6db5\u76d6\u4e86\u6240\u6709\u53ef\u80fd\u7684\u60c5\u51b5\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u5bc6\u5c01\u7c7b <code>Expr<\/code>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>fun eval(expr: Expr): Double = when (expr) {\n    is Expr.Const -&gt; expr.number\n    is Expr.Sum -&gt; eval(expr.left) + eval(expr.right)\n    is Expr.Mul -&gt; eval(expr.left) * eval(expr.right)\n}\n\nval expr = Expr.Sum(Expr.Const(1.0), Expr.Mul(Expr.Const(2.0), Expr.Const(3.0)))\nval result = eval(expr) \/\/ \u7b49\u4e8e 7.0\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>eval()<\/code> \u7684\u51fd\u6570\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a <code>Expr<\/code> \u7c7b\u578b\u7684\u53c2\u6570\uff0c\u5e76\u4f7f\u7528 <code>when<\/code> \u8868\u8fbe\u5f0f\u5339\u914d\u4e0d\u540c\u7684\u5b50\u7c7b\u3002\u6211\u4eec\u8fd8\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a <code>expr<\/code> \u7684 <code>Expr<\/code> \u7c7b\u578b\u7684\u5b9e\u4f8b\uff0c\u5b83\u7531\u4e00\u4e2a\u5e38\u91cf\u8868\u8fbe\u5f0f\u548c\u4e00\u4e2a\u4e58\u6cd5\u8868\u8fbe\u5f0f\u7ec4\u6210\uff0c\u7136\u540e\u8ba1\u7b97\u4e86 <code>expr<\/code> \u7684\u503c\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a 7.0\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cKotlin \u4e2d\u7684\u5bc6\u5c01\u7c7b\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u7c7b\uff0c\u7528\u4e8e\u8868\u793a\u53d7\u9650\u7684\u7c7b\u7ee7\u627f\u7ed3\u6784\u3002\u5bc6\u5c01\u7c7b\u7684\u5b50\u7c7b\u5fc5\u987b\u5b9a\u4e49\u5728\u540c\u4e00\u4e2a\u6587\u4ef6\u4e2d\uff0c\u5e76\u4e14\u4e0d\u80fd\u88ab\u7ee7\u627f\u6216\u6269\u5c55\uff0c\u56e0\u6b64\u5bc6\u5c01\u7c7b\u901a\u5e38\u7528\u4e8e\u5b9e\u73b0\u7c7b\u4f3c\u679a\u4e3e\u7684\u529f\u80fd\u3002\u4f7f\u7528\u5bc6\u5c01\u7c7b\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u52a0\u5b89\u5168\u3001\u53ef\u8bfb\u548c\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin\u6cdb\u578b\u7c7b\u548c\u6cdb\u578b\u51fd\u6570\u7684\u5b9a\u4e49\u548c\u4f7f\u7528<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u6cdb\u578b\u662f\u4e00\u79cd\u7c7b\u578b\u53c2\u6570\u5316\u7684\u673a\u5236\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u7f16\u5199\u80fd\u591f\u9002\u7528\u4e8e\u4e0d\u540c\u7c7b\u578b\u7684\u4ee3\u7801\u3002\u6cdb\u578b\u7c7b\u548c\u6cdb\u578b\u51fd\u6570\u662f Kotlin \u4e2d\u7684\u4e24\u79cd\u57fa\u672c\u6cdb\u578b\u5f62\u5f0f\uff0c\u5b83\u4eec\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u52a0\u901a\u7528\u3001\u53ef\u91cd\u7528\u548c\u7c7b\u578b\u5b89\u5168\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6cdb\u578b\u7c7b\uff1a \u5b9a\u4e49\u6cdb\u578b\u7c7b\u9700\u8981\u4f7f\u7528\u5c16\u62ec\u53f7 <code>&lt;&gt;<\/code> \u6765\u58f0\u660e\u4e00\u4e2a\u6216\u591a\u4e2a\u7c7b\u578b\u53c2\u6570\uff0c\u5e76\u5728\u7c7b\u540d\u540e\u9762\u4f7f\u7528\u8fd9\u4e9b\u7c7b\u578b\u53c2\u6570\u6765\u58f0\u660e\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>Box<\/code> \u7684\u6cdb\u578b\u7c7b\uff0c\u5b83\u6709\u4e00\u4e2a\u7c7b\u578b\u53c2\u6570 <code>T<\/code>\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>class Box&lt;T&gt;(var item: T)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u5c16\u62ec\u53f7 <code>&lt;&gt;<\/code> \u6765\u58f0\u660e\u4e86\u4e00\u4e2a\u7c7b\u578b\u53c2\u6570 <code>T<\/code>\uff0c\u7136\u540e\u5728\u7c7b\u540d\u540e\u9762\u4f7f\u7528\u4e86\u8fd9\u4e2a\u7c7b\u578b\u53c2\u6570\u6765\u58f0\u660e\u4e86\u7c7b\u578b\u3002\u7c7b\u7684\u4e3b\u4f53\u4e2d\u6709\u4e00\u4e2a\u53ef\u53d8\u5c5e\u6027 <code>item<\/code>\uff0c\u7c7b\u578b\u4e3a\u6cdb\u578b\u7c7b\u578b <code>T<\/code>\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528\u6cdb\u578b\u7c7b\u65f6\uff0c\u9700\u8981\u5728\u7c7b\u540d\u540e\u9762\u4f7f\u7528\u5c16\u62ec\u53f7\u6765\u6307\u5b9a\u7c7b\u578b\u53c2\u6570\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u6cdb\u578b\u7c7b <code>Box<\/code>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>val box1 = Box&lt;String&gt;(\"Hello\") \/\/ \u521b\u5efa\u4e00\u4e2a Box \u5bf9\u8c61\uff0c\u5305\u542b\u4e00\u4e2a\u5b57\u7b26\u4e32\nval box2 = Box&lt;Int&gt;(123) \/\/ \u521b\u5efa\u4e00\u4e2a Box \u5bf9\u8c61\uff0c\u5305\u542b\u4e00\u4e2a\u6574\u6570\n\nprintln(box1.item) \/\/ \u8f93\u51fa \"Hello\"\nprintln(box2.item) \/\/ \u8f93\u51fa 123\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5206\u522b\u4f7f\u7528\u6cdb\u578b\u7c7b <code>Box<\/code> \u521b\u5efa\u4e86\u4e24\u4e2a\u5bf9\u8c61 <code>box1<\/code> \u548c <code>box2<\/code>\uff0c\u4e00\u4e2a\u5305\u542b\u5b57\u7b26\u4e32 &#8220;Hello&#8221;\uff0c\u4e00\u4e2a\u5305\u542b\u6574\u6570 123\u3002\u6211\u4eec\u4f7f\u7528\u70b9\u7b26\u53f7\u8bbf\u95ee\u4e86 <code>Box<\/code> \u5bf9\u8c61\u7684\u5c5e\u6027 <code>item<\/code>\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a &#8220;Hello&#8221; \u548c 123\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u6cdb\u578b\u51fd\u6570\uff1a \u5b9a\u4e49\u6cdb\u578b\u51fd\u6570\u9700\u8981\u5728\u51fd\u6570\u540d\u548c\u53c2\u6570\u5217\u8868\u4e4b\u95f4\u4f7f\u7528\u5c16\u62ec\u53f7 <code>&lt;&gt;<\/code> \u6765\u58f0\u660e\u4e00\u4e2a\u6216\u591a\u4e2a\u7c7b\u578b\u53c2\u6570\uff0c\u5e76\u5728\u51fd\u6570\u4f53\u4e2d\u4f7f\u7528\u8fd9\u4e9b\u7c7b\u578b\u53c2\u6570\u6765\u58f0\u660e\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>swap<\/code> \u7684\u6cdb\u578b\u51fd\u6570\uff0c\u5b83\u6709\u4e24\u4e2a\u7c7b\u578b\u53c2\u6570 <code>T<\/code> \u548c <code>U<\/code>\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun &lt;T, U&gt; swap(pair: Pair&lt;T, U&gt;): Pair&lt;U, T&gt; {\n    return Pair(pair.second, pair.first)\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u5c16\u62ec\u53f7 <code>&lt;&gt;<\/code> \u6765\u58f0\u660e\u4e86\u4e24\u4e2a\u7c7b\u578b\u53c2\u6570 <code>T<\/code> \u548c <code>U<\/code>\uff0c\u7136\u540e\u5728\u51fd\u6570\u540d\u540e\u9762\u4f7f\u7528\u4e86\u8fd9\u4e9b\u7c7b\u578b\u53c2\u6570\u6765\u58f0\u660e\u4e86\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u7c7b\u578b\u4e3a <code>Pair&lt;T, U&gt;<\/code> \u7684\u53c2\u6570\uff0c\u8fd4\u56de\u4e00\u4e2a\u7c7b\u578b\u4e3a <code>Pair&lt;U, T&gt;<\/code> \u7684\u7ed3\u679c\uff0c\u4ea4\u6362\u4e86\u53c2\u6570\u7684\u987a\u5e8f\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528\u6cdb\u578b\u51fd\u6570\u65f6\uff0c\u9700\u8981\u5728\u51fd\u6570\u540d\u524d\u9762\u4f7f\u7528\u5c16\u62ec\u53f7\u6765\u6307\u5b9a\u7c7b\u578b\u53c2\u6570\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u6cdb\u578b\u51fd\u6570 <code>swap<\/code>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>val pair1 = Pair(\"Hello\", 123) \/\/ \u521b\u5efa\u4e00\u4e2a Pair \u5bf9\u8c61\uff0c\u5305\u542b\u4e00\u4e2a\u5b57\u7b26\u4e32\u548c\u4e00\u4e2a\u6574\u6570\nval pair2 = swap(pair1) \/\/ \u8c03\u7528\u6cdb\u578b\u51fd\u6570 swap\uff0c\u4ea4\u6362\u4e86 pair1 \u5bf9\u8c61\u7684\u5143\u7d20\u987a\u5e8f\n\nprintln(pair1) \/\/ \u8f93\u51fa \"(Hello, 123)\"\nprintln(pair2\n<\/code><\/pre>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u6cdb\u578b\u51fd\u6570 <code>swap<\/code> \u5bf9\u4e00\u4e2a <code>Pair<\/code> \u5bf9\u8c61\u8fdb\u884c\u4e86\u5143\u7d20\u4ea4\u6362\uff0c\u5f97\u5230\u4e86\u53e6\u4e00\u4e2a <code>Pair<\/code> \u5bf9\u8c61 <code>pair2<\/code>\u3002\u6211\u4eec\u5728 <code>println()<\/code> \u51fd\u6570\u4e2d\u8f93\u51fa\u4e86\u539f\u59cb\u7684 <code>Pair<\/code> \u5bf9\u8c61 <code>pair1<\/code> \u548c\u4ea4\u6362\u540e\u7684 <code>Pair<\/code> \u5bf9\u8c61 <code>pair2<\/code>\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cKotlin \u4e2d\u7684\u6cdb\u578b\u673a\u5236\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7f16\u5199\u901a\u7528\u3001\u53ef\u91cd\u7528\u548c\u7c7b\u578b\u5b89\u5168\u7684\u4ee3\u7801\u3002\u6cdb\u578b\u7c7b\u548c\u6cdb\u578b\u51fd\u6570\u662f Kotlin \u4e2d\u7684\u4e24\u79cd\u57fa\u672c\u6cdb\u578b\u5f62\u5f0f\uff0c\u5b83\u4eec\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u52a0\u901a\u7528\u3001\u53ef\u91cd\u7528\u548c\u7c7b\u578b\u5b89\u5168\u3002\u5728\u5b9a\u4e49\u6cdb\u578b\u7c7b\u548c\u6cdb\u578b\u51fd\u6570\u65f6\uff0c\u9700\u8981\u4f7f\u7528\u5c16\u62ec\u53f7 <code>&lt;&gt;<\/code> \u6765\u58f0\u660e\u4e00\u4e2a\u6216\u591a\u4e2a\u7c7b\u578b\u53c2\u6570\uff0c\u5e76\u5728\u7c7b\u540d\u6216\u51fd\u6570\u540d\u540e\u9762\u4f7f\u7528\u8fd9\u4e9b\u7c7b\u578b\u53c2\u6570\u6765\u58f0\u660e\u7c7b\u578b\u3002\u5728\u4f7f\u7528\u6cdb\u578b\u7c7b\u548c\u6cdb\u578b\u51fd\u6570\u65f6\uff0c\u9700\u8981\u5728\u7c7b\u540d\u6216\u51fd\u6570\u540d\u540e\u9762\u4f7f\u7528\u5c16\u62ec\u53f7\u6765\u6307\u5b9a\u7c7b\u578b\u53c2\u6570\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin\u4e0a\u4e0b\u754c\u9650\u5b9a<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u4e0a\u4e0b\u754c\u9650\u5b9a\u662f\u4e00\u79cd\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u7684\u9650\u5236\uff0c\u5b83\u7528\u4e8e\u9650\u5236\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u7684\u7c7b\u578b\u8303\u56f4\u3002\u4e0a\u4e0b\u754c\u9650\u5b9a\u53ef\u4ee5\u4f7f\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u66f4\u52a0\u901a\u7528\u548c\u7c7b\u578b\u5b89\u5168\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4e0a\u754c\u9650\u5b9a\uff1a \u4e0a\u754c\u9650\u5b9a\u4f7f\u7528 <code>:<\/code> \u7b26\u53f7\u6765\u6307\u5b9a\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u7684\u4e0a\u754c\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>Box<\/code> \u7684\u6cdb\u578b\u7c7b\uff0c\u5b83\u7684\u7c7b\u578b\u53c2\u6570 <code>T<\/code> \u5fc5\u987b\u662f <code>Number<\/code> \u7c7b\u578b\u6216\u5176\u5b50\u7c7b\u578b\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>class Box&lt;T : Number&gt;(var item: T)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>:<\/code> \u7b26\u53f7\u6307\u5b9a\u4e86\u6cdb\u578b\u7c7b\u578b\u53c2\u6570 <code>T<\/code> \u7684\u4e0a\u754c\u4e3a <code>Number<\/code> \u7c7b\u578b\uff0c\u5373 <code>T<\/code> \u5fc5\u987b\u662f <code>Number<\/code> \u7c7b\u578b\u6216\u5176\u5b50\u7c7b\u578b\u3002\u8fd9\u610f\u5473\u7740\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a <code>Box&lt;Double&gt;<\/code>\u3001<code>Box&lt;Float&gt;<\/code> \u6216 <code>Box&lt;Int&gt;<\/code> \u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u4f46\u4e0d\u80fd\u521b\u5efa\u4e00\u4e2a <code>Box&lt;String&gt;<\/code> \u7c7b\u578b\u7684\u5bf9\u8c61\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u4e0b\u754c\u9650\u5b9a\uff1a \u4e0b\u754c\u9650\u5b9a\u4f7f\u7528 <code>:<\/code> \u7b26\u53f7\u6765\u6307\u5b9a\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u7684\u4e0b\u754c\u3002\u4e0b\u754c\u9650\u5b9a\u662f\u7528\u4e8e\u5728\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u4e2d\u5f15\u5165\u9006\u53d8\u6027\u7684\u4e00\u79cd\u65b9\u5f0f\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>Box<\/code> \u7684\u6cdb\u578b\u7c7b\uff0c\u5b83\u7684\u7c7b\u578b\u53c2\u6570 <code>T<\/code> \u5fc5\u987b\u662f <code>Comparable<\/code> \u7c7b\u578b\u6216\u5176\u7236\u7c7b\u578b\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">rCopy code<code>class Box&lt;T&gt;(var item: T) where T : Comparable&lt;T&gt;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>where<\/code> \u5173\u952e\u5b57\u6307\u5b9a\u4e86\u6cdb\u578b\u7c7b\u578b\u53c2\u6570 <code>T<\/code> \u7684\u4e0b\u754c\u4e3a <code>Comparable&lt;T&gt;<\/code> \u7c7b\u578b\uff0c\u5373 <code>T<\/code> \u5fc5\u987b\u662f <code>Comparable&lt;T&gt;<\/code> \u7c7b\u578b\u6216\u5176\u7236\u7c7b\u578b\u3002\u8fd9\u610f\u5473\u7740\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a <code>Box&lt;String&gt;<\/code>\u3001<code>Box&lt;Any&gt;<\/code> \u6216 <code>Box&lt;Comparable&lt;Any&gt;&gt;<\/code> \u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u4f46\u4e0d\u80fd\u521b\u5efa\u4e00\u4e2a <code>Box&lt;Int&gt;<\/code> \u7c7b\u578b\u7684\u5bf9\u8c61\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cKotlin \u4e2d\u7684\u4e0a\u4e0b\u754c\u9650\u5b9a\u53ef\u4ee5\u7528\u4e8e\u9650\u5236\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u7684\u7c7b\u578b\u8303\u56f4\uff0c\u4f7f\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u66f4\u52a0\u901a\u7528\u548c\u7c7b\u578b\u5b89\u5168\u3002\u5728\u5b9a\u4e49\u6cdb\u578b\u7c7b\u548c\u6cdb\u578b\u51fd\u6570\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>:<\/code> \u7b26\u53f7\u6307\u5b9a\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u7684\u4e0a\u754c\u6216\u4e0b\u754c\uff0c\u4ece\u800c\u9650\u5236\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u7684\u7c7b\u578b\u8303\u56f4\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin\u5f02\u5e38\u7684\u57fa\u672c\u6982\u5ff5\u548c\u5904\u7406\u65b9\u5f0f<\/p>\n\n\n\n<p>\u5728\u7f16\u7a0b\u4e2d\uff0c\u5f02\u5e38\u662f\u6307\u7a0b\u5e8f\u6267\u884c\u671f\u95f4\u9047\u5230\u7684\u9519\u8bef\u6216\u610f\u5916\u60c5\u51b5\u3002\u5728 Kotlin \u4e2d\uff0c\u5f02\u5e38\u53ef\u4ee5\u901a\u8fc7\u629b\u51fa\u548c\u6355\u83b7\u673a\u5236\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5f02\u5e38\u7684\u57fa\u672c\u6982\u5ff5\uff1a \u5728 Kotlin \u4e2d\uff0c\u5f02\u5e38\u662f\u4e00\u79cd\u5bf9\u8c61\uff0c\u5b83\u662f <code>Throwable<\/code> \u7c7b\u7684\u5b50\u7c7b\u3002\u5f02\u5e38\u5bf9\u8c61\u5305\u542b\u4e86\u9519\u8bef\u4fe1\u606f\u3001\u5806\u6808\u8f68\u8ff9\u7b49\u76f8\u5173\u4fe1\u606f\uff0c\u7528\u4e8e\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u5b9a\u4f4d\u548c\u89e3\u51b3\u7a0b\u5e8f\u9519\u8bef\u3002<\/li>\n\n\n\n<li>\u5f02\u5e38\u7684\u5904\u7406\u65b9\u5f0f\uff1a \u5728 Kotlin \u4e2d\uff0c\u5f02\u5e38\u53ef\u4ee5\u901a\u8fc7\u629b\u51fa\u548c\u6355\u83b7\u673a\u5236\u8fdb\u884c\u5904\u7406\u3002<\/li>\n<\/ol>\n\n\n\n<p>\uff081\uff09\u629b\u51fa\u5f02\u5e38\uff1a \u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>throw<\/code> \u5173\u952e\u5b57\u6765\u629b\u51fa\u5f02\u5e38\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u629b\u51fa\u4e86\u4e00\u4e2a <code>RuntimeException<\/code> \u5f02\u5e38\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">phpCopy code<code>throw RuntimeException(\"This is a runtime exception.\")\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>throw<\/code> \u5173\u952e\u5b57\u629b\u51fa\u4e86\u4e00\u4e2a <code>RuntimeException<\/code> \u5f02\u5e38\uff0c\u5e76\u5728\u62ec\u53f7\u5185\u6307\u5b9a\u4e86\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n\n\n\n<p>\uff082\uff09\u6355\u83b7\u5f02\u5e38\uff1a \u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>try-catch<\/code> \u8bed\u53e5\u6765\u6355\u83b7\u5f02\u5e38\u3002<code>try-catch<\/code> \u8bed\u53e5\u5305\u542b\u4e86\u4e00\u4e2a <code>try<\/code> \u5757\u548c\u4e00\u4e2a\u6216\u591a\u4e2a <code>catch<\/code> \u5757\u3002<code>try<\/code> \u5757\u7528\u4e8e\u5305\u542b\u53ef\u80fd\u4f1a\u5f15\u53d1\u5f02\u5e38\u7684\u4ee3\u7801\uff0c<code>catch<\/code> \u5757\u7528\u4e8e\u5904\u7406\u5f02\u5e38\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528 <code>try-catch<\/code> \u8bed\u53e5\u6355\u83b7\u5f02\u5e38\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">phpCopy code<code>try {\n    \/\/ \u53ef\u80fd\u5f15\u53d1\u5f02\u5e38\u7684\u4ee3\u7801\n} catch (e: Exception) {\n    \/\/ \u5904\u7406\u5f02\u5e38\u7684\u4ee3\u7801\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>try<\/code> \u5757\u5305\u542b\u4e86\u53ef\u80fd\u5f15\u53d1\u5f02\u5e38\u7684\u4ee3\u7801\uff0c\u4f7f\u7528 <code>catch<\/code> \u5757\u5904\u7406\u4e86\u5f02\u5e38\u3002<code>catch<\/code> \u5757\u5305\u542b\u4e86\u4e00\u4e2a <code>Exception<\/code> \u7c7b\u578b\u7684\u53c2\u6570 <code>e<\/code>\uff0c\u7528\u4e8e\u8868\u793a\u6355\u83b7\u7684\u5f02\u5e38\u5bf9\u8c61\u3002\u6211\u4eec\u53ef\u4ee5\u5728 <code>catch<\/code> \u5757\u4e2d\u4f7f\u7528 <code>e<\/code> \u5bf9\u8c61\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\u6765\u8bbf\u95ee\u5f02\u5e38\u76f8\u5173\u7684\u4fe1\u606f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u5f02\u5e38\u7684\u5904\u7406\u987a\u5e8f\uff1a \u5728 Kotlin \u4e2d\uff0c\u5f53\u7a0b\u5e8f\u5f15\u53d1\u5f02\u5e38\u65f6\uff0c\u5b83\u4f1a\u5728\u5f53\u524d\u65b9\u6cd5\u4e2d\u5bfb\u627e\u80fd\u591f\u5904\u7406\u8be5\u5f02\u5e38\u7684 <code>catch<\/code> \u5757\u3002\u5982\u679c\u5f53\u524d\u65b9\u6cd5\u6ca1\u6709\u5904\u7406\u8be5\u5f02\u5e38\u7684 <code>catch<\/code> \u5757\uff0c\u90a3\u4e48\u5b83\u4f1a\u7ee7\u7eed\u5728\u8c03\u7528\u8be5\u65b9\u6cd5\u7684\u4e0a\u4e00\u5c42\u65b9\u6cd5\u4e2d\u5bfb\u627e\u80fd\u591f\u5904\u7406\u8be5\u5f02\u5e38\u7684 <code>catch<\/code> \u5757\uff0c\u76f4\u5230\u627e\u5230\u4e00\u4e2a\u80fd\u591f\u5904\u7406\u8be5\u5f02\u5e38\u7684 <code>catch<\/code> \u5757\u6216\u8005\u629b\u51fa\u5f02\u5e38\u5230\u7a0b\u5e8f\u7684\u9876\u5c42\u3002<\/li>\n\n\n\n<li>\u81ea\u5b9a\u4e49\u5f02\u5e38\uff1a \u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\u6765\u8868\u793a\u7a0b\u5e8f\u4e2d\u9047\u5230\u7684\u7279\u5b9a\u9519\u8bef\u3002\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\u9700\u8981\u7ee7\u627f <code>Throwable<\/code> \u6216\u5176\u5b50\u7c7b\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e2a\u5408\u9002\u7684\u6784\u9020\u51fd\u6570\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>MyException<\/code> \u7684\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>class MyException(message: String) : RuntimeException(message)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>MyException<\/code> \u7684\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\uff0c\u5b83\u7ee7\u627f\u4e86 <code>RuntimeException<\/code> \u7c7b\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e2a\u63a5\u53d7\u9519\u8bef\u4fe1\u606f\u7684\u6784\u9020\u51fd\u6570\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u5f02\u5e38\u662f\u4e00\u79cd\u5bf9\u8c61\uff0c\u5b83\u662f <code>Throwable<\/code> \u7c7b\u7684\u5b50\u7c7b\uff0c\u7528\u4e8e\u8868\u793a\u7a0b\u5e8f\u6267\u884c\u671f\u95f4\u9047\u5230\u7684\u9519\u8bef\u6216\u610f\u5916\u60c5\u51b5\u3002\u5f02\u5e38\u53ef\u4ee5\u901a\u8fc7\u629b\u51fa\u548c\u6355\u83b7\u673a\u5236\u8fdb\u884c\u5904\u7406\u3002\u629b\u51fa\u5f02\u5e38\u4f7f\u7528 <code>throw<\/code> \u5173\u952e\u5b57\uff0c\u800c\u6355\u83b7\u5f02\u5e38\u4f7f\u7528 <code>try-catch<\/code> \u8bed\u53e5\u3002<code>try-catch<\/code> \u8bed\u53e5\u5305\u542b\u4e86\u4e00\u4e2a <code>try<\/code> \u5757\u548c\u4e00\u4e2a\u6216\u591a\u4e2a <code>catch<\/code> \u5757\u3002<code>try<\/code> \u5757\u7528\u4e8e\u5305\u542b\u53ef\u80fd\u4f1a\u5f15\u53d1\u5f02\u5e38\u7684\u4ee3\u7801\uff0c<code>catch<\/code> \u5757\u7528\u4e8e\u5904\u7406\u5f02\u5e38\u3002\u5f53\u7a0b\u5e8f\u5f15\u53d1\u5f02\u5e38\u65f6\uff0c\u5b83\u4f1a\u5728\u5f53\u524d\u65b9\u6cd5\u4e2d\u5bfb\u627e\u80fd\u591f\u5904\u7406\u8be5\u5f02\u5e38\u7684 <code>catch<\/code> \u5757\uff0c\u5982\u679c\u5f53\u524d\u65b9\u6cd5\u6ca1\u6709\u5904\u7406\u8be5\u5f02\u5e38\u7684 <code>catch<\/code> \u5757\uff0c\u90a3\u4e48\u5b83\u4f1a\u7ee7\u7eed\u5728\u8c03\u7528\u8be5\u65b9\u6cd5\u7684\u4e0a\u4e00\u5c42\u65b9\u6cd5\u4e2d\u5bfb\u627e\u80fd\u591f\u5904\u7406\u8be5\u5f02\u5e38\u7684 <code>catch<\/code> \u5757\uff0c\u76f4\u5230\u627e\u5230\u4e00\u4e2a\u80fd\u591f\u5904\u7406\u8be5\u5f02\u5e38\u7684 <code>catch<\/code> \u5757\u6216\u8005\u629b\u51fa\u5f02\u5e38\u5230\u7a0b\u5e8f\u7684\u9876\u5c42\u3002\u5982\u679c\u7a0b\u5e8f\u6ca1\u6709\u63d0\u4f9b\u9002\u5f53\u7684\u5f02\u5e38\u5904\u7406\uff0c\u7a0b\u5e8f\u5c31\u4f1a\u7ec8\u6b62\u6267\u884c\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u4f7f\u81ea\u5b9a\u4e49\u7684\u5f02\u5e38\u7c7b\u80fd\u591f\u88ab <code>try-catch<\/code> \u5757\u6355\u83b7\u548c\u5904\u7406\uff0c\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\u9700\u8981\u7ee7\u627f <code>Throwable<\/code> \u6216\u5176\u5b50\u7c7b\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e2a\u5408\u9002\u7684\u6784\u9020\u51fd\u6570\u3002\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\u7684\u6784\u9020\u51fd\u6570\u901a\u5e38\u4f1a\u63a5\u6536\u4e00\u4e2a\u9519\u8bef\u4fe1\u606f\uff0c\u7528\u4e8e\u63cf\u8ff0\u5f02\u5e38\u7684\u539f\u56e0\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>class MyException(message: String) : RuntimeException(message)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>MyException<\/code> \u7684\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\uff0c\u5b83\u7ee7\u627f\u4e86 <code>RuntimeException<\/code> \u7c7b\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e2a\u63a5\u53d7\u9519\u8bef\u4fe1\u606f\u7684\u6784\u9020\u51fd\u6570\u3002<\/p>\n\n\n\n<p>\u5f53\u7a0b\u5e8f\u4e2d\u9047\u5230\u4e86\u9700\u8981\u629b\u51fa\u81ea\u5b9a\u4e49\u5f02\u5e38\u7684\u60c5\u51b5\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>throw<\/code> \u5173\u952e\u5b57\u629b\u51fa\u81ea\u5b9a\u4e49\u5f02\u5e38\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>if (age &lt; 0) {\n    throw MyException(\"Invalid age\")\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u5982\u679c <code>age<\/code> \u7684\u503c\u5c0f\u4e8e 0\uff0c\u5219\u4f1a\u629b\u51fa\u4e00\u4e2a <code>MyException<\/code> \u5f02\u5e38\uff0c\u5e76\u4f20\u9012\u9519\u8bef\u4fe1\u606f &#8220;Invalid age&#8221;\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u5f02\u5e38\u662f\u4e00\u79cd\u8868\u793a\u7a0b\u5e8f\u6267\u884c\u671f\u95f4\u9047\u5230\u7684\u9519\u8bef\u6216\u610f\u5916\u60c5\u51b5\u7684\u5bf9\u8c61\u3002\u5f02\u5e38\u53ef\u4ee5\u901a\u8fc7\u629b\u51fa\u548c\u6355\u83b7\u673a\u5236\u8fdb\u884c\u5904\u7406\uff0c\u901a\u8fc7\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\u53ef\u4ee5\u66f4\u597d\u5730\u63cf\u8ff0\u548c\u5904\u7406\u7a0b\u5e8f\u4e2d\u7684\u5f02\u5e38\u60c5\u51b5\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin\u81ea\u5b9a\u4e49\u5f02\u5e38<\/p>\n\n\n\n<p>\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\u6765\u8868\u793a\u7a0b\u5e8f\u4e2d\u9047\u5230\u7684\u7279\u5b9a\u9519\u8bef\u3002\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\u9700\u8981\u7ee7\u627f <code>Throwable<\/code> \u6216\u5176\u5b50\u7c7b\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e2a\u5408\u9002\u7684\u6784\u9020\u51fd\u6570\u3002\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\u53ef\u4ee5\u66f4\u597d\u5730\u63cf\u8ff0\u548c\u5904\u7406\u7a0b\u5e8f\u4e2d\u7684\u5f02\u5e38\u60c5\u51b5\uff0c\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>class CustomException(message: String) : Exception(message)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a <code>CustomException<\/code> \u7684\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\uff0c\u5b83\u7ee7\u627f\u4e86 <code>Exception<\/code> \u7c7b\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e2a\u63a5\u53d7\u9519\u8bef\u4fe1\u606f\u7684\u6784\u9020\u51fd\u6570\u3002\u6784\u9020\u51fd\u6570\u4e2d\u7684 <code>message<\/code> \u53c2\u6570\u7528\u4e8e\u63cf\u8ff0\u5f02\u5e38\u7684\u539f\u56e0\u3002<\/p>\n\n\n\n<p>\u5f53\u7a0b\u5e8f\u4e2d\u9047\u5230\u4e86\u9700\u8981\u629b\u51fa\u81ea\u5b9a\u4e49\u5f02\u5e38\u7684\u60c5\u51b5\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>throw<\/code> \u5173\u952e\u5b57\u629b\u51fa\u81ea\u5b9a\u4e49\u5f02\u5e38\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>fun divide(a: Int, b: Int): Int {\n    if (b == 0) {\n        throw CustomException(\"Division by zero is not allowed.\")\n    }\n    return a \/ b\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u5982\u679c\u9664\u6570 <code>b<\/code> \u7684\u503c\u4e3a 0\uff0c\u5219\u4f1a\u629b\u51fa\u4e00\u4e2a <code>CustomException<\/code> \u5f02\u5e38\uff0c\u5e76\u4f20\u9012\u9519\u8bef\u4fe1\u606f &#8220;Division by zero is not allowed.&#8221;\u3002<\/p>\n\n\n\n<p>\u5728\u6355\u83b7\u81ea\u5b9a\u4e49\u5f02\u5e38\u65f6\uff0c\u53ef\u4ee5\u6309\u7167\u4e00\u822c\u7684 <code>try-catch<\/code> \u8bed\u6cd5\u8fdb\u884c\u5904\u7406\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>try {\n    val result = divide(10, 0)\n    println(result)\n} catch (e: CustomException) {\n    println(\"Caught CustomException: ${e.message}\")\n} catch (e: Exception) {\n    println(\"Caught an exception: ${e.message}\")\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u8c03\u7528 <code>divide<\/code> \u51fd\u6570\uff0c\u8be5\u51fd\u6570\u53ef\u80fd\u4f1a\u629b\u51fa\u4e00\u4e2a <code>CustomException<\/code> \u5f02\u5e38\u3002\u7136\u540e\u4f7f\u7528 <code>try-catch<\/code> \u8bed\u6cd5\u6355\u83b7\u53ef\u80fd\u7684\u5f02\u5e38\uff0c\u5e76\u6839\u636e\u5f02\u5e38\u7c7b\u578b\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\u6765\u8868\u793a\u7a0b\u5e8f\u4e2d\u9047\u5230\u7684\u7279\u5b9a\u9519\u8bef\u3002\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\u9700\u8981\u7ee7\u627f <code>Throwable<\/code> \u6216\u5176\u5b50\u7c7b\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e2a\u5408\u9002\u7684\u6784\u9020\u51fd\u6570\u3002\u5f53\u7a0b\u5e8f\u4e2d\u9047\u5230\u9700\u8981\u629b\u51fa\u81ea\u5b9a\u4e49\u5f02\u5e38\u7684\u60c5\u51b5\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>throw<\/code> \u5173\u952e\u5b57\u629b\u51fa\u81ea\u5b9a\u4e49\u5f02\u5e38\uff0c\u5e76\u5728\u6355\u83b7\u81ea\u5b9a\u4e49\u5f02\u5e38\u65f6\u6309\u7167\u4e00\u822c\u7684 <code>try-catch<\/code> \u8bed\u6cd5\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin\u534f\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\u548c\u4f7f\u7528<\/p>\n\n\n\n<p>\u534f\u7a0b\uff08Coroutine\uff09\u662f\u4e00\u79cd\u5e76\u53d1\u7f16\u7a0b\u6a21\u578b\uff0c\u5b83\u80fd\u591f\u63d0\u4f9b\u4e00\u79cd\u8f7b\u91cf\u7ea7\u3001\u9ad8\u6548\u7684\u591a\u7ebf\u7a0b\u7f16\u7a0b\u65b9\u6848\uff0c\u907f\u514d\u4e86\u4f20\u7edf\u591a\u7ebf\u7a0b\u7f16\u7a0b\u4e2d\u7684\u8bb8\u591a\u95ee\u9898\u3002\u5728 Kotlin \u4e2d\uff0c\u534f\u7a0b\u662f\u8bed\u8a00\u5c42\u9762\u7684\u652f\u6301\uff0c\u53ef\u4ee5\u901a\u8fc7 kotlinx.coroutines \u5e93\u6765\u4f7f\u7528\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u534f\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\uff1a \u5728 Kotlin \u4e2d\uff0c\u534f\u7a0b\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u7ebf\u7a0b\uff0c\u53ef\u4ee5\u5728\u5355\u4e2a\u7ebf\u7a0b\u5185\u5e76\u53d1\u6267\u884c\u591a\u4e2a\u4efb\u52a1\uff0c\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\u3002\u534f\u7a0b\u901a\u8fc7\u6302\u8d77\u548c\u6062\u590d\u7684\u65b9\u5f0f\u5b9e\u73b0\u5f02\u6b65\u6267\u884c\uff0c\u907f\u514d\u4e86\u4f20\u7edf\u591a\u7ebf\u7a0b\u7f16\u7a0b\u4e2d\u9891\u7e41\u521b\u5efa\u3001\u9500\u6bc1\u7ebf\u7a0b\u7684\u5f00\u9500\u3002<\/li>\n\n\n\n<li>\u534f\u7a0b\u7684\u4f7f\u7528\uff1a \u5728 Kotlin \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 kotlinx.coroutines \u5e93\u6765\u4f7f\u7528\u534f\u7a0b\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528\u534f\u7a0b\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>import kotlinx.coroutines.*\n\nfun main() = runBlocking {\n    val job = launch {\n        delay(1000L)\n        println(\"World!\")\n    }\n    println(\"Hello,\")\n    job.join()\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>runBlocking<\/code> \u51fd\u6570\u521b\u5efa\u4e86\u4e00\u4e2a\u534f\u7a0b\uff0c\u7136\u540e\u4f7f\u7528 <code>launch<\/code> \u51fd\u6570\u542f\u52a8\u4e86\u4e00\u4e2a\u65b0\u7684\u534f\u7a0b\u3002\u5728\u65b0\u7684\u534f\u7a0b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>delay<\/code> \u51fd\u6570\u6a21\u62df\u4e86\u4e00\u4e2a\u8017\u65f6\u64cd\u4f5c\uff0c\u5e76\u8f93\u51fa\u4e86 &#8220;World!&#8221;\u3002\u5728\u4e3b\u7ebf\u7a0b\u4e2d\uff0c\u6211\u4eec\u5148\u8f93\u51fa\u4e86 &#8220;Hello,&#8221;\uff0c\u7136\u540e\u7b49\u5f85\u65b0\u7684\u534f\u7a0b\u6267\u884c\u5b8c\u6bd5\u3002\u901a\u8fc7\u4f7f\u7528\u534f\u7a0b\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u5355\u4e2a\u7ebf\u7a0b\u5185\u5b9e\u73b0\u5f02\u6b65\u6267\u884c\uff0c\u907f\u514d\u4e86\u4f20\u7edf\u591a\u7ebf\u7a0b\u7f16\u7a0b\u4e2d\u9891\u7e41\u521b\u5efa\u3001\u9500\u6bc1\u7ebf\u7a0b\u7684\u5f00\u9500\u3002<\/p>\n\n\n\n<p>\u5728\u534f\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>suspend<\/code> \u5173\u952e\u5b57\u6765\u5b9a\u4e49\u6302\u8d77\u51fd\u6570\u3002\u6302\u8d77\u51fd\u6570\u53ef\u4ee5\u901a\u8fc7 <code>suspendCoroutine<\/code> \u6216\u5176\u4ed6\u534f\u7a0b\u76f8\u5173\u51fd\u6570\u6765\u5b9e\u73b0\u534f\u7a0b\u7684\u6302\u8d77\u548c\u6062\u590d\u64cd\u4f5c\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>suspend fun foo(): Int {\n    delay(1000L)\n    return 42\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>suspend<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u4e86\u4e00\u4e2a\u6302\u8d77\u51fd\u6570 <code>foo<\/code>\uff0c\u5b83\u6a21\u62df\u4e86\u4e00\u4e2a\u8017\u65f6\u64cd\u4f5c\uff0c\u5e76\u8fd4\u56de\u4e86\u4e00\u4e2a\u6574\u6570\u503c\u3002\u5728\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>delay<\/code> \u51fd\u6570\u6a21\u62df\u4e86\u4e00\u4e2a\u8017\u65f6\u64cd\u4f5c\uff0c\u5e76\u6302\u8d77\u5f53\u524d\u534f\u7a0b\u7684\u6267\u884c\u3002\u5728\u534f\u7a0b\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528 <code>foo<\/code> \u51fd\u6570\u6765\u5b9e\u73b0\u5f02\u6b65\u6267\u884c\uff0c\u5e76\u7b49\u5f85 <code>foo<\/code> \u51fd\u6570\u7684\u6267\u884c\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u4f7f\u7528 <code>launch<\/code> \u51fd\u6570\u6765\u542f\u52a8\u65b0\u7684\u534f\u7a0b\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528 <code>async<\/code> \u51fd\u6570\u6765\u542f\u52a8\u5f02\u6b65\u4efb\u52a1\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a <code>Deferred<\/code> \u5bf9\u8c61\u3002<code>Deferred<\/code> \u5bf9\u8c61\u8868\u793a\u4e00\u4e2a\u5f02\u6b65\u8ba1\u7b97\u7684\u7ed3\u679c\uff0c\u53ef\u4ee5\u901a\u8fc7 <code>await<\/code> \u51fd\u6570\u6765\u83b7\u53d6\u8be5\u7ed3\u679c\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>import kotlinx.coroutines.*\n\nfun main() = runBlocking {\n    val deferred = async {\n        delay(1000L)\n        42\n    }\n    println(\"The answer is ${deferred.await()}\")\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>async<\/code> \u51fd\u6570\u542f\u52a8\u4e00\u4e2a\u5f02\u6b65\u4efb\u52a1\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a <code>Deferred<\/code> \u5bf9\u8c61\u3002\u5728\u5f02\u6b65\u4efb\u52a1\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 `delay<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u51fd\u6570\u6a21\u62df\u4e86\u4e00\u4e2a\u8017\u65f6\u64cd\u4f5c\uff0c\u5e76\u8fd4\u56de\u4e86\u4e00\u4e2a\u6574\u6570\u503c\u3002\u5728\u4e3b\u7ebf\u7a0b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>await<\/code> \u51fd\u6570\u7b49\u5f85\u5f02\u6b65\u4efb\u52a1\u7684\u7ed3\u679c\uff0c\u5e76\u8f93\u51fa\u4e86\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u534f\u7a0b\u8fd8\u652f\u6301\u53d6\u6d88\u64cd\u4f5c\u3002\u53ef\u4ee5\u4f7f\u7528 <code>cancel<\/code> \u51fd\u6570\u6765\u53d6\u6d88\u4e00\u4e2a\u534f\u7a0b\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528 <code>withTimeout<\/code> \u6216 <code>withContext<\/code> \u51fd\u6570\u8bbe\u7f6e\u534f\u7a0b\u7684\u8d85\u65f6\u65f6\u95f4\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>import kotlinx.coroutines.*\n\nfun main() = runBlocking {\n    val job = launch {\n        try {\n            withTimeout(1000L) {\n                repeat(1000) {\n                    delay(10L)\n                    println(\"I'm sleeping $it ...\")\n                }\n            }\n        } catch (e: TimeoutCancellationException) {\n            println(\"Timed out!\")\n        }\n    }\n    delay(1500L)\n    job.cancel()\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>withTimeout<\/code> \u51fd\u6570\u8bbe\u7f6e\u534f\u7a0b\u7684\u8d85\u65f6\u65f6\u95f4\u4e3a 1000 \u6beb\u79d2\u3002\u5728\u65b0\u7684\u534f\u7a0b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>repeat<\/code> \u51fd\u6570\u6a21\u62df\u4e86\u4e00\u4e2a\u8017\u65f6\u64cd\u4f5c\uff0c\u5e76\u8f93\u51fa\u4e86\u4e00\u4e9b\u4fe1\u606f\u3002\u5728\u4e3b\u7ebf\u7a0b\u4e2d\uff0c\u6211\u4eec\u7b49\u5f85 1500 \u6beb\u79d2\u540e\uff0c\u4f7f\u7528 <code>cancel<\/code> \u51fd\u6570\u53d6\u6d88\u4e86\u65b0\u7684\u534f\u7a0b\u3002\u5728\u534f\u7a0b\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 <code>try-catch<\/code> \u8bed\u53e5\u6765\u6355\u83b7\u53d6\u6d88\u5f02\u5e38\uff0c\u5e76\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728 Kotlin \u4e2d\uff0c\u534f\u7a0b\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u7ebf\u7a0b\uff0c\u53ef\u4ee5\u5728\u5355\u4e2a\u7ebf\u7a0b\u5185\u5e76\u53d1\u6267\u884c\u591a\u4e2a\u4efb\u52a1\uff0c\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\u3002\u53ef\u4ee5\u4f7f\u7528 kotlinx.coroutines \u5e93\u6765\u4f7f\u7528\u534f\u7a0b\uff0c\u901a\u8fc7\u4f7f\u7528\u6302\u8d77\u51fd\u6570\u3001\u5f02\u6b65\u4efb\u52a1\u3001\u53d6\u6d88\u64cd\u4f5c\u7b49\u7279\u6027\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u5b9e\u73b0\u5f02\u6b65\u7f16\u7a0b\u3001\u5e76\u53d1\u7f16\u7a0b\u7b49\u590d\u6742\u4efb\u52a1\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caKotlin\u534f\u7a0b\u7684\u8c03\u5ea6\u5668\u548c\u534f\u7a0b\u4e0a\u4e0b\u6587<\/p>\n\n\n\n<p>\u534f\u7a0b\u7684\u8c03\u5ea6\u5668\u548c\u534f\u7a0b\u4e0a\u4e0b\u6587\u662f\u534f\u7a0b\u4e2d\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5b83\u4eec\u51b3\u5b9a\u4e86\u534f\u7a0b\u6267\u884c\u7684\u7ebf\u7a0b\u548c\u6267\u884c\u73af\u5883\u3002\u5728 Kotlin \u4e2d\uff0c\u534f\u7a0b\u7684\u8c03\u5ea6\u5668\u548c\u534f\u7a0b\u4e0a\u4e0b\u6587\u90fd\u662f\u7531 <code>CoroutineContext<\/code> \u7c7b\u6765\u8868\u793a\u7684\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u534f\u7a0b\u8c03\u5ea6\u5668\uff1a \u534f\u7a0b\u8c03\u5ea6\u5668\uff08Coroutine Dispatcher\uff09\u662f\u4e00\u4e2a\u8d1f\u8d23\u534f\u7a0b\u8c03\u5ea6\u7684\u5bf9\u8c61\uff0c\u5b83\u51b3\u5b9a\u4e86\u534f\u7a0b\u6267\u884c\u7684\u7ebf\u7a0b\u548c\u6267\u884c\u73af\u5883\u3002\u5728 Kotlin \u4e2d\uff0c\u534f\u7a0b\u8c03\u5ea6\u5668\u7531 <code>CoroutineDispatcher<\/code> \u7c7b\u6765\u8868\u793a\uff0c\u5b83\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u51e0\u79cd\u7c7b\u578b\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Default\uff1a\u9ed8\u8ba4\u8c03\u5ea6\u5668\uff0c\u4f1a\u6839\u636e\u53ef\u7528\u7684 CPU \u6570\u91cf\u81ea\u52a8\u5206\u914d\u534f\u7a0b\u7684\u6267\u884c\u7ebf\u7a0b\u3002\u5728\u591a CPU \u73af\u5883\u4e0b\uff0c\u53ef\u4ee5\u5b9e\u73b0\u534f\u7a0b\u7684\u5e76\u53d1\u6267\u884c\u3002<\/li>\n\n\n\n<li>IO\uff1a\u7528\u4e8e\u6267\u884c I\/O \u76f8\u5173\u7684\u534f\u7a0b\u4efb\u52a1\uff0c\u4f8b\u5982\u7f51\u7edc\u8bf7\u6c42\u3001\u6587\u4ef6\u8bfb\u5199\u7b49\u3002\u8be5\u8c03\u5ea6\u5668\u4f7f\u7528\u4e86\u4e13\u95e8\u7684\u7ebf\u7a0b\u6c60\uff0c\u53ef\u4ee5\u5728 I\/O \u64cd\u4f5c\u65f6\u5b9e\u73b0\u534f\u7a0b\u7684\u6302\u8d77\u3002<\/li>\n\n\n\n<li>Main\uff1a\u7528\u4e8e\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u6267\u884c\u534f\u7a0b\u4efb\u52a1\uff0c\u4f8b\u5982 UI \u76f8\u5173\u7684\u64cd\u4f5c\u3002\u8be5\u8c03\u5ea6\u5668\u4f1a\u5c06\u534f\u7a0b\u4efb\u52a1\u59d4\u6258\u7ed9\u4e3b\u7ebf\u7a0b\u7684\u6d88\u606f\u961f\u5217\uff0c\u4fdd\u8bc1\u4e86 UI \u64cd\u4f5c\u7684\u7ebf\u7a0b\u5b89\u5168\u6027\u3002<\/li>\n\n\n\n<li>Unconfined\uff1a\u4e0d\u53d7\u9650\u5236\u7684\u8c03\u5ea6\u5668\uff0c\u53ef\u4ee5\u5728\u5f53\u524d\u7ebf\u7a0b\u4e2d\u6267\u884c\u534f\u7a0b\u4efb\u52a1\u3002\u8be5\u8c03\u5ea6\u5668\u9002\u7528\u4e8e\u4e00\u4e9b\u65e0\u9700\u7ebf\u7a0b\u5b89\u5168\u4fdd\u8bc1\u7684\u4efb\u52a1\uff0c\u4f8b\u5982\u8ba1\u7b97\u5bc6\u96c6\u578b\u4efb\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u534f\u7a0b\u4e0a\u4e0b\u6587\uff1a \u534f\u7a0b\u4e0a\u4e0b\u6587\uff08Coroutine Context\uff09\u662f\u4e00\u4e2a\u5305\u542b\u4e86\u534f\u7a0b\u8c03\u5ea6\u5668\u548c\u5176\u4ed6\u76f8\u5173\u4fe1\u606f\u7684\u5bf9\u8c61\uff0c\u5b83\u51b3\u5b9a\u4e86\u534f\u7a0b\u7684\u6267\u884c\u73af\u5883\u3002\u5728 Kotlin \u4e2d\uff0c\u534f\u7a0b\u4e0a\u4e0b\u6587\u7531 <code>CoroutineContext<\/code> \u7c7b\u6765\u8868\u793a\uff0c\u5b83\u53ef\u4ee5\u5305\u542b\u4ee5\u4e0b\u51e0\u79cd\u5143\u7d20\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u534f\u7a0b\u8c03\u5ea6\u5668\uff08Coroutine Dispatcher\uff09<\/li>\n\n\n\n<li>\u534f\u7a0b\u540d\u79f0\uff08Coroutine Name\uff09<\/li>\n\n\n\n<li>\u5f02\u5e38\u5904\u7406\u5668\uff08Exception Handler\uff09<\/li>\n\n\n\n<li>\u5176\u4ed6\u6269\u5c55\u5c5e\u6027<\/li>\n<\/ul>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528 <code>CoroutineScope<\/code> \u7c7b\u6765\u521b\u5efa\u4e00\u4e2a\u534f\u7a0b\u4f5c\u7528\u57df\uff0c\u534f\u7a0b\u4f5c\u7528\u57df\u5305\u542b\u4e86\u4e00\u4e2a\u534f\u7a0b\u4e0a\u4e0b\u6587\u548c\u4e00\u4e2a\u534f\u7a0b\u4f5c\u7528\u57df\u5185\u7684\u6240\u6709\u534f\u7a0b\u3002\u53ef\u4ee5\u4f7f\u7528 <code>withContext<\/code> \u51fd\u6570\u548c <code>launch<\/code> \u51fd\u6570\u7b49\u6765\u5207\u6362\u534f\u7a0b\u7684\u6267\u884c\u73af\u5883\uff0c\u5e76\u5728\u4e0d\u540c\u7684\u534f\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c\u534f\u7a0b\u4efb\u52a1\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>import kotlinx.coroutines.*\n\nfun main() = runBlocking {\n    val job = launch(Dispatchers.IO) {\n        println(\"Thread: ${Thread.currentThread().name}\")\n        val result = withContext(Dispatchers.Default) {\n            println(\"Thread: ${Thread.currentThread().name}\")\n            compute(10)\n        }\n        println(\"Result: $result\")\n    }\n    job.join()\n}\n\nsuspend fun compute(x: Int): Int {\n    delay(1000L)\n    return x * x\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>launch<\/code> \u51fd\u6570\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684\u534f\u7a0b\uff0c\u5e76\u5c06\u5176\u8c03\u5ea6\u5668\u8bbe\u7f6e\u4e3a IO \u8c03\u5ea6\u5668\u3002\u5728\u534f\u7a0b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>withContext<\/code> \u51fd\u6570\u5c06\u534f\u7a0b\u7684\u8c03\u5ea6<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u5668\u5207\u6362\u4e3a Default \u8c03\u5ea6\u5668\uff0c\u7136\u540e\u8c03\u7528\u4e86 <code>compute<\/code> \u51fd\u6570\u8fdb\u884c\u8ba1\u7b97\uff0c\u5e76\u5c06\u8ba1\u7b97\u7ed3\u679c\u8fd4\u56de\u3002\u5728\u8ba1\u7b97\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u8f93\u51fa\u4e86\u8ba1\u7b97\u7ed3\u679c\uff0c\u5e76\u7ed3\u675f\u4e86\u534f\u7a0b\u7684\u6267\u884c\u3002\u5728\u534f\u7a0b\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7 <code>Thread.currentThread().name<\/code> \u6765\u83b7\u53d6\u5f53\u524d\u534f\u7a0b\u7684\u6267\u884c\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u534f\u7a0b\u8c03\u5ea6\u5668\u548c\u534f\u7a0b\u4e0a\u4e0b\u6587\u662f Kotlin \u4e2d\u534f\u7a0b\u7f16\u7a0b\u7684\u91cd\u8981\u6982\u5ff5\uff0c\u5b83\u4eec\u51b3\u5b9a\u4e86\u534f\u7a0b\u7684\u6267\u884c\u73af\u5883\u548c\u6267\u884c\u7ebf\u7a0b\u3002\u5728\u534f\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>withContext<\/code> \u51fd\u6570\u548c <code>launch<\/code> \u51fd\u6570\u7b49\u6765\u5207\u6362\u534f\u7a0b\u7684\u6267\u884c\u73af\u5883\uff0c\u5e76\u5728\u4e0d\u540c\u7684\u534f\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c\u534f\u7a0b\u4efb\u52a1\u3002\u719f\u7ec3\u638c\u63e1\u534f\u7a0b\u8c03\u5ea6\u5668\u548c\u534f\u7a0b\u4e0a\u4e0b\u6587\u7684\u4f7f\u7528\uff0c\u53ef\u4ee5\u5b9e\u73b0\u66f4\u52a0\u7075\u6d3b\u548c\u9ad8\u6548\u7684\u534f\u7a0b\u7f16\u7a0b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u662f\u8981\u505aIT\u6559\u7a0b\u7684\u89c6\u9891\uff0c\u4f60\u80fd\u5426\u6839\u636e\u7f51\u7ad9\u7684 &hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1744","post","type-post","status-publish","format-standard","hentry","category-material"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/1744","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1744"}],"version-history":[{"count":1,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/1744\/revisions"}],"predecessor-version":[{"id":1745,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/1744\/revisions\/1745"}],"wp:attachment":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1744"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}