{"id":853,"date":"2023-04-11T21:17:26","date_gmt":"2023-04-11T12:17:26","guid":{"rendered":"http:\/\/edu.ujhb.org\/?p=853"},"modified":"2023-04-11T21:17:26","modified_gmt":"2023-04-11T12:17:26","slug":"vb-net%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=853","title":{"rendered":"VB.NET\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\u4eceVB.NET\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\u5e2e\u4f60\u5b89\u6392\u89c6\u9891\u6559\u7a0b\u7684\u6587\u5b57\u5185\u5bb9\uff01\u4ee5\u4e0b\u662fVB.NET\u6559\u7a0b\u7684\u4e00\u89c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>VB.NET \u7b80\u4ecb\u548c\u5386\u53f2<\/li>\n\n\n\n<li>VB.NET \u5f00\u53d1\u73af\u5883\u7684\u642d\u5efa\u548c\u914d\u7f6e<\/li>\n\n\n\n<li>VB.NET \u57fa\u7840\u8bed\u6cd5\u4ecb\u7ecd<\/li>\n\n\n\n<li>\u53d8\u91cf\u548c\u6570\u636e\u7c7b\u578b<\/li>\n\n\n\n<li>\u8fd0\u7b97\u7b26\u548c\u8868\u8fbe\u5f0f<\/li>\n\n\n\n<li>\u6761\u4ef6\u8bed\u53e5\u548c\u5faa\u73af\u8bed\u53e5<\/li>\n\n\n\n<li>\u51fd\u6570\u548c\u8fc7\u7a0b<\/li>\n\n\n\n<li>\u6570\u7ec4\u548c\u96c6\u5408<\/li>\n\n\n\n<li>\u7c7b\u548c\u5bf9\u8c61<\/li>\n\n\n\n<li>\u7ee7\u627f\u548c\u591a\u6001<\/li>\n\n\n\n<li>\u6587\u4ef6\u548c\u6d41\u64cd\u4f5c<\/li>\n\n\n\n<li>\u5f02\u5e38\u5904\u7406<\/li>\n\n\n\n<li>LINQ\u7f16\u7a0b<\/li>\n\n\n\n<li>\u7f51\u7edc\u7f16\u7a0b\u57fa\u7840<\/li>\n\n\n\n<li>\u6570\u636e\u5e93\u7f16\u7a0b\u57fa\u7840<\/li>\n<\/ol>\n\n\n\n<p>\u4ee5\u4e0a\u662fVB.NET\u6559\u7a0b\u7684\u4e3b\u8981\u5185\u5bb9\uff0c\u4f60\u53ef\u4ee5\u6839\u636e\u9700\u8981\u9002\u5f53\u8fdb\u884c\u589e\u5220\u548c\u4fee\u6539\u3002\u5728\u5236\u4f5c\u89c6\u9891\u6559\u7a0b\u65f6\uff0c\u4f60\u53ef\u4ee5\u5c06\u6bcf\u4e2a\u4e3b\u9898\u62c6\u5206\u6210\u591a\u4e2a\u5c0f\u8282\uff0c\u5206\u522b\u8bb2\u89e3\u6bcf\u4e2a\u5c0f\u8282\u7684\u5177\u4f53\u5185\u5bb9\uff0c\u4ee5\u786e\u4fdd\u89c2\u4f17\u53ef\u4ee5\u66f4\u52a0\u6df1\u5165\u5730\u4e86\u89e3\u6bcf\u4e2a\u4e3b\u9898\u7684\u7ec6\u8282\u548c\u5e94\u7528\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET \u7b80\u4ecb\u548c\u5386\u53f2<\/p>\n\n\n\n<p>VB.NET \u662f\u5fae\u8f6f\u516c\u53f8\u63a8\u51fa\u7684\u4e00\u79cd\u9762\u5411\u5bf9\u8c61\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u5b83\u662f\u57fa\u4e8e.NET\u6846\u67b6\u7684\u4e00\u79cd\u7f16\u7a0b\u8bed\u8a00\u3002VB.NET \u53ef\u4ee5\u5728\u591a\u4e2a\u5e73\u53f0\u4e0a\u8fd0\u884c\uff0c\u5982 Windows\u3001Linux\u3001macOS \u7b49\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5e76\u4e14\u5b83\u53ef\u4ee5\u7f16\u5199\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\uff0c\u5305\u62ec\u63a7\u5236\u53f0\u5e94\u7528\u7a0b\u5e8f\u3001Windows \u7a97\u4f53\u5e94\u7528\u7a0b\u5e8f\u3001Web \u5e94\u7528\u7a0b\u5e8f\u7b49\u3002<\/p>\n\n\n\n<p>VB.NET \u6700\u521d\u662f\u7531\u5fae\u8f6f\u516c\u53f8\u4e8e 2002 \u5e74\u53d1\u5e03\u7684\uff0c\u5b83\u662f Visual Basic \u7684\u540e\u7eed\u7248\u672c\u3002Visual Basic \u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u6700\u521d\u4e8e 1991 \u5e74\u53d1\u5e03\uff0c\u5e7f\u6cdb\u7528\u4e8e Windows \u5e73\u53f0\u4e0a\u7684\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u3002\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0cVisual Basic \u53d1\u5c55\u6210\u4e86\u4e00\u79cd\u5f3a\u5927\u7684\u5f00\u53d1\u5de5\u5177\uff0c\u4f46\u5b83\u7684\u4e00\u4e9b\u9650\u5236\u548c\u7f3a\u70b9\u4e5f\u9010\u6e10\u663e\u73b0\u51fa\u6765\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u514b\u670d\u8fd9\u4e9b\u9650\u5236\u548c\u7f3a\u70b9\uff0c\u5fae\u8f6f\u516c\u53f8\u5f00\u53d1\u4e86 VB.NET\uff0c\u5b83\u662f\u4e00\u79cd\u5168\u65b0\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u91c7\u7528\u4e86\u66f4\u73b0\u4ee3\u5316\u7684\u7f16\u7a0b\u65b9\u6cd5\u548c\u6280\u672f\u3002VB.NET \u5728\u4fdd\u7559 Visual Basic \u7684\u6613\u7528\u6027\u548c\u76f4\u89c2\u6027\u7684\u540c\u65f6\uff0c\u589e\u52a0\u4e86\u66f4\u591a\u7684\u529f\u80fd\u548c\u7279\u6027\uff0c\u5982\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u3001\u53ef\u6269\u5c55\u6027\u3001\u53ef\u79fb\u690d\u6027\u7b49\uff0c\u4f7f\u5176\u66f4\u52a0\u9002\u5408\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u53d1\u3002<\/p>\n\n\n\n<p>VB.NET \u662f\u4e00\u4e2a\u975e\u5e38\u6d41\u884c\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u7279\u522b\u662f\u5728 Windows \u5e73\u53f0\u4e0a\u7684\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u9886\u57df\u3002\u5b83\u88ab\u5e7f\u6cdb\u7528\u4e8e\u5f00\u53d1\u5404\u79cd\u7c7b\u578b\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u5982\u684c\u9762\u5e94\u7528\u7a0b\u5e8f\u3001Web \u5e94\u7528\u7a0b\u5e8f\u3001\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f\u7b49\u3002VB.NET \u4e5f\u662f\u5b66\u4e60.NET\u6846\u67b6\u548c\u5176\u4ed6.NET\u7f16\u7a0b\u8bed\u8a00\u7684\u5165\u95e8\u8bed\u8a00\u4e4b\u4e00\uff0c\u56e0\u4e3a\u5b83\u6613\u5b66\u6613\u7528\uff0c\u540c\u65f6\u4e5f\u53ef\u4ee5\u5f88\u597d\u5730\u4f53\u73b0.NET\u6846\u67b6\u7684\u4f18\u52bf\u548c\u7279\u70b9\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET \u5f00\u53d1\u73af\u5883\u7684\u642d\u5efa\u548c\u914d\u7f6e<\/p>\n\n\n\n<p>VB.NET \u7684\u5f00\u53d1\u73af\u5883\u53ef\u4ee5\u4f7f\u7528 Visual Studio \u8fdb\u884c\u642d\u5efa\u548c\u914d\u7f6e\u3002\u4ee5\u4e0b\u662f VB.NET \u5f00\u53d1\u73af\u5883\u642d\u5efa\u548c\u914d\u7f6e\u7684\u8be6\u7ec6\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4e0b\u8f7d\u548c\u5b89\u88c5 Visual Studio\uff1a\u6253\u5f00 Microsoft \u5b98\u7f51\uff0c\u5728 Visual Studio \u9875\u9762\u4e2d\u9009\u62e9\u6240\u9700\u7248\u672c\uff0c\u5982 Visual Studio 2019\uff0c\u7136\u540e\u4e0b\u8f7d\u5e76\u5b89\u88c5\u5b83\u3002<\/li>\n\n\n\n<li>\u6253\u5f00 Visual Studio\uff1a\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u6253\u5f00 Visual Studio\uff0c\u7136\u540e\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u9879\u76ee\u3002<\/li>\n\n\n\n<li>\u9009\u62e9\u9879\u76ee\u7c7b\u578b\uff1a\u5728\u65b0\u5efa\u9879\u76ee\u7684\u5bf9\u8bdd\u6846\u4e2d\uff0c\u9009\u62e9 VB.NET \u9879\u76ee\u7c7b\u578b\uff0c\u7136\u540e\u9009\u62e9\u5e94\u7528\u7a0b\u5e8f\u7c7b\u578b\uff0c\u5982\u63a7\u5236\u53f0\u5e94\u7528\u7a0b\u5e8f\u3001Windows \u7a97\u4f53\u5e94\u7528\u7a0b\u5e8f\u7b49\u3002<\/li>\n\n\n\n<li>\u914d\u7f6e\u9879\u76ee\u5c5e\u6027\uff1a\u5728\u9879\u76ee\u4e2d\uff0c\u53f3\u952e\u5355\u51fb\u9879\u76ee\u540d\u79f0\uff0c\u9009\u62e9\u201c\u5c5e\u6027\u201d\u9009\u9879\u3002\u5728\u5c5e\u6027\u7a97\u53e3\u4e2d\uff0c\u53ef\u4ee5\u5bf9\u9879\u76ee\u7684\u5404\u79cd\u5c5e\u6027\u8fdb\u884c\u914d\u7f6e\uff0c\u5982\u8f93\u51fa\u7c7b\u578b\u3001\u76ee\u6807\u6846\u67b6\u3001\u5f15\u7528\u3001\u8c03\u8bd5\u7b49\u3002<\/li>\n\n\n\n<li>\u7f16\u5199 VB.NET \u4ee3\u7801\uff1a\u5728\u9879\u76ee\u4e2d\uff0c\u6253\u5f00 Form1.vb\uff08\u6216\u5176\u4ed6\u4ee3\u7801\u6587\u4ef6\uff09\uff0c\u7f16\u5199 VB.NET \u4ee3\u7801\u3002\u53ef\u4ee5\u4f7f\u7528 Visual Studio \u7684\u667a\u80fd\u63d0\u793a\u548c\u4ee3\u7801\u8865\u5168\u529f\u80fd\u6765\u63d0\u9ad8\u7f16\u7801\u6548\u7387\u548c\u51c6\u786e\u6027\u3002<\/li>\n\n\n\n<li>\u7f16\u8bd1\u548c\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\uff1a\u5728 Visual Studio \u4e2d\uff0c\u5355\u51fb\u201c\u751f\u6210\u201d\u6309\u94ae\uff0c\u53ef\u4ee5\u5c06 VB.NET \u4ee3\u7801\u7f16\u8bd1\u6210\u53ef\u6267\u884c\u6587\u4ef6\u3002\u5728\u7f16\u8bd1\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u5355\u51fb\u201c\u8fd0\u884c\u201d\u6309\u94ae\u6765\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u9664\u4e86\u4f7f\u7528 Visual Studio\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6 VB.NET \u5f00\u53d1\u5de5\u5177\u6765\u8fdb\u884c\u5f00\u53d1\u3002\u4f8b\u5982\uff0cSharpDevelop\u3001Visual Studio Code\u3001MonoDevelop \u7b49\u5f00\u6e90\u5de5\u5177\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u7528\u4e8e VB.NET \u5f00\u53d1\uff0c\u5e76\u63d0\u4f9b\u4e86\u7c7b\u4f3c\u4e8e Visual Studio \u7684\u5f00\u53d1\u4f53\u9a8c\u3002\u4e0d\u8fc7\uff0cVisual Studio \u662f VB.NET \u5f00\u53d1\u7684\u9996\u9009\u5de5\u5177\uff0c\u56e0\u4e3a\u5b83\u662f\u5fae\u8f6f\u516c\u53f8\u5b98\u65b9\u63a8\u8350\u7684\u5f00\u53d1\u5de5\u5177\uff0c\u4e5f\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u529f\u80fd\u548c\u5de5\u5177\u652f\u6301\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET \u57fa\u7840\u8bed\u6cd5\u4ecb\u7ecd<\/p>\n\n\n\n<p>VB.NET \u7684\u57fa\u7840\u8bed\u6cd5\u5305\u62ec\u6570\u636e\u7c7b\u578b\u3001\u53d8\u91cf\u3001\u5e38\u91cf\u3001\u8fd0\u7b97\u7b26\u3001\u6d41\u7a0b\u63a7\u5236\u7b49\u3002\u4ee5\u4e0b\u662f VB.NET \u57fa\u7840\u8bed\u6cd5\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u636e\u7c7b\u578b\uff1aVB.NET \u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u6574\u578b\u3001\u6d6e\u70b9\u578b\u3001\u5e03\u5c14\u578b\u3001\u5b57\u7b26\u4e32\u578b\u3001\u65e5\u671f\u578b\u3001\u6570\u7ec4\u7b49\u3002\u53ef\u4ee5\u4f7f\u7528 Dim \u5173\u952e\u5b57\u58f0\u660e\u53d8\u91cf\u5e76\u6307\u5b9a\u5176\u6570\u636e\u7c7b\u578b\uff0c\u4f8b\u5982\uff1aDim num As Integer = 10\u3002<\/li>\n\n\n\n<li>\u53d8\u91cf\u548c\u5e38\u91cf\uff1a\u53d8\u91cf\u662f\u53ef\u53d8\u7684\uff0c\u53ef\u4ee5\u5728\u7a0b\u5e8f\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u4fee\u6539\u5176\u503c\uff1b\u5e38\u91cf\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u4e00\u65e6\u88ab\u5b9a\u4e49\uff0c\u5176\u503c\u5c31\u4e0d\u80fd\u518d\u4fee\u6539\u3002\u53ef\u4ee5\u4f7f\u7528 Const \u5173\u952e\u5b57\u5b9a\u4e49\u5e38\u91cf\uff0c\u4f8b\u5982\uff1aConst PI As Double = 3.14\u3002<\/li>\n\n\n\n<li>\u8fd0\u7b97\u7b26\uff1aVB.NET \u652f\u6301\u591a\u79cd\u8fd0\u7b97\u7b26\uff0c\u5305\u62ec\u7b97\u672f\u8fd0\u7b97\u7b26\uff08+\u3001-\u3001*\u3001\/\u3001\\\u3001Mod\uff09\u3001\u6bd4\u8f83\u8fd0\u7b97\u7b26\uff08=\u3001&lt;&gt;\u3001&gt;\u3001&lt;\u3001&gt;=\u3001&lt;=\uff09\u3001\u903b\u8f91\u8fd0\u7b97\u7b26\uff08And\u3001Or\u3001Not\uff09\u3001\u4f4d\u8fd0\u7b97\u7b26\uff08And\u3001Or\u3001Xor\u3001Not\uff09\u7b49\u3002<\/li>\n\n\n\n<li>\u6d41\u7a0b\u63a7\u5236\uff1aVB.NET \u652f\u6301\u591a\u79cd\u6d41\u7a0b\u63a7\u5236\u8bed\u53e5\uff0c\u5305\u62ec\u6761\u4ef6\u8bed\u53e5\uff08If&#8230;Then&#8230;Else\uff09\u3001\u9009\u62e9\u8bed\u53e5\uff08Select Case\uff09\u3001\u5faa\u73af\u8bed\u53e5\uff08For\u3001While\u3001Do&#8230;Loop\uff09\u3001\u8df3\u8f6c\u8bed\u53e5\uff08GoTo\u3001Exit\uff09\u7b49\u3002<\/li>\n\n\n\n<li>\u51fd\u6570\u548c\u5b50\u8fc7\u7a0b\uff1aVB.NET \u652f\u6301\u51fd\u6570\u548c\u5b50\u8fc7\u7a0b\u7684\u5b9a\u4e49\u548c\u8c03\u7528\u3002\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u503c\uff0c\u800c\u5b50\u8fc7\u7a0b\u4e0d\u8fd4\u56de\u4efb\u4f55\u503c\u3002\u53ef\u4ee5\u4f7f\u7528 Function \u548c Sub \u5173\u952e\u5b57\u5b9a\u4e49\u51fd\u6570\u548c\u5b50\u8fc7\u7a0b\uff0c\u4f8b\u5982\uff1aFunction Add(num1 As Integer, num2 As Integer) As Integer Return num1 + num2 End FunctionSub PrintMessage(message As String) Console.WriteLine(message) End Sub<\/li>\n<\/ol>\n\n\n\n<p>\u4ee5\u4e0a\u662f VB.NET \u7684\u57fa\u7840\u8bed\u6cd5\u4ecb\u7ecd\uff0c\u638c\u63e1\u8fd9\u4e9b\u57fa\u7840\u8bed\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u7f16\u5199\u7b80\u5355\u7684 VB.NET \u5e94\u7528\u7a0b\u5e8f\u3002\u540c\u65f6\uff0c\u4e5f\u9700\u8981\u6df1\u5165\u5b66\u4e60 VB.NET \u7684\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u3001\u5f02\u5e38\u5904\u7406\u3001\u4e8b\u4ef6\u5904\u7406\u7b49\u9ad8\u7ea7\u8bed\u6cd5\u548c\u6280\u672f\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u5f00\u53d1\u51fa\u590d\u6742\u7684\u5e94\u7528\u7a0b\u5e8f\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u6570\u636e\u7c7b\u578b<\/p>\n\n\n\n<p>VB.NET \u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u6574\u578b\u3001\u6d6e\u70b9\u578b\u3001\u5e03\u5c14\u578b\u3001\u5b57\u7b26\u4e32\u578b\u3001\u65e5\u671f\u578b\u3001\u6570\u7ec4\u7b49\u3002\u4ee5\u4e0b\u662f VB.NET \u6570\u636e\u7c7b\u578b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6574\u578b\uff08Integer\uff09\uff1a\u8868\u793a\u6574\u6570\uff0c\u8303\u56f4\u4e3a -2,147,483,648 \u5230 2,147,483,647\u3002<\/li>\n\n\n\n<li>\u957f\u6574\u578b\uff08Long\uff09\uff1a\u8868\u793a\u66f4\u5927\u8303\u56f4\u7684\u6574\u6570\uff0c\u8303\u56f4\u4e3a -9,223,372,036,854,775,808 \u5230 9,223,372,036,854,775,807\u3002<\/li>\n\n\n\n<li>\u5355\u7cbe\u5ea6\u6d6e\u70b9\u578b\uff08Single\uff09\uff1a\u8868\u793a\u5355\u7cbe\u5ea6\u6d6e\u70b9\u6570\uff0c\u7cbe\u5ea6\u4e3a 7 \u4f4d\u6709\u6548\u6570\u5b57\uff0c\u8303\u56f4\u4e3a -3.4028235E38 \u5230 -1.401298E-45 \u6216 1.401298E-45 \u5230 3.4028235E38\u3002<\/li>\n\n\n\n<li>\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u578b\uff08Double\uff09\uff1a\u8868\u793a\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\uff0c\u7cbe\u5ea6\u4e3a 15 \u4f4d\u6709\u6548\u6570\u5b57\uff0c\u8303\u56f4\u4e3a -1.79769313486231E308 \u5230 -4.94065645841247E-324 \u6216 4.94065645841247E-324 \u5230 1.79769313486232E308\u3002<\/li>\n\n\n\n<li>\u5341\u8fdb\u5236\u578b\uff08Decimal\uff09\uff1a\u8868\u793a\u7cbe\u786e\u7684\u5c0f\u6570\uff0c\u7cbe\u5ea6\u4e3a 28 \u4f4d\u6709\u6548\u6570\u5b57\uff0c\u8303\u56f4\u4e3a -79228162514264337593543950335 \u5230 79228162514264337593543950335\u3002<\/li>\n\n\n\n<li>\u5e03\u5c14\u578b\uff08Boolean\uff09\uff1a\u8868\u793a\u5e03\u5c14\u503c\uff0c\u53ea\u80fd\u662f True \u6216 False\u3002<\/li>\n\n\n\n<li>\u5b57\u7b26\u4e32\u578b\uff08String\uff09\uff1a\u8868\u793a\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u5305\u542b\u4efb\u610f\u5b57\u7b26\u548c\u6587\u672c\u3002<\/li>\n\n\n\n<li>\u65e5\u671f\u578b\uff08Date\uff09\uff1a\u8868\u793a\u65e5\u671f\u548c\u65f6\u95f4\u3002<\/li>\n\n\n\n<li>\u6570\u7ec4\uff08Array\uff09\uff1a\u8868\u793a\u4e00\u7ec4\u76f8\u540c\u7c7b\u578b\u7684\u503c\u7684\u96c6\u5408\u3002\u53ef\u4ee5\u662f\u4e00\u7ef4\u3001\u4e8c\u7ef4\u6216\u591a\u7ef4\u6570\u7ec4\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0c\u8fd8\u6709\u5176\u4ed6\u4e00\u4e9b\u6570\u636e\u7c7b\u578b\uff0c\u4f8b\u5982\u5b57\u8282\u578b\uff08Byte\uff09\u3001\u5b57\u7b26\u578b\uff08Char\uff09\u3001\u5bf9\u8c61\u578b\uff08Object\uff09\u3001\u7a7a\u578b\uff08Nothing\uff09\u3001\u679a\u4e3e\u578b\uff08Enum\uff09\u7b49\u3002\u638c\u63e1 VB.NET \u7684\u6570\u636e\u7c7b\u578b\u662f\u7f16\u5199\u6709\u6548\u7684 VB.NET \u7a0b\u5e8f\u7684\u5173\u952e\u4e4b\u4e00\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7c7b\u578b\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u53d8\u91cf\u548c\u5e38\u91cf<\/p>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0c\u53d8\u91cf\u662f\u7528\u4e8e\u5b58\u50a8\u503c\u7684\u547d\u540d\u5b58\u50a8\u4f4d\u7f6e\uff0c\u800c\u5e38\u91cf\u662f\u5728\u7a0b\u5e8f\u8fd0\u884c\u65f6\u4e0d\u80fd\u4fee\u6539\u7684\u503c\u3002\u4e0b\u9762\u5206\u522b\u4ecb\u7ecd VB.NET \u4e2d\u7684\u53d8\u91cf\u548c\u5e38\u91cf\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u53d8\u91cf\uff1a\u5728 VB.NET \u4e2d\uff0c\u53d8\u91cf\u53ef\u4ee5\u662f\u4efb\u4f55\u6570\u636e\u7c7b\u578b\uff0c\u4f8b\u5982\u6574\u6570\u3001\u6d6e\u70b9\u6570\u3001\u5b57\u7b26\u4e32\u3001\u5e03\u5c14\u503c\u7b49\u3002\u5b9a\u4e49\u53d8\u91cf\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim variable_name As Data_Type\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0c<code>variable_name<\/code> \u662f\u53d8\u91cf\u7684\u540d\u79f0\uff0c<code>Data_Type<\/code> \u662f\u53d8\u91cf\u7684\u6570\u636e\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u8981\u58f0\u660e\u4e00\u4e2a\u6574\u578b\u53d8\u91cf <code>age<\/code>\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim age As Integer\n<\/code><\/pre>\n\n\n\n<p>\u58f0\u660e\u53d8\u91cf\u540e\uff0c\u53ef\u4ee5\u5c06\u503c\u8d4b\u7ed9\u53d8\u91cf\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">makefileCopy code<code>age = 25\n<\/code><\/pre>\n\n\n\n<p>\u8fd8\u53ef\u4ee5\u5728\u58f0\u660e\u53d8\u91cf\u65f6\u5c06\u5176\u521d\u59cb\u5316\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim age As Integer = 25\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u5e38\u91cf\uff1a\u5728 VB.NET \u4e2d\uff0c\u5e38\u91cf\u662f\u5728\u7a0b\u5e8f\u8fd0\u884c\u65f6\u4e0d\u80fd\u4fee\u6539\u7684\u503c\u3002\u5b9a\u4e49\u5e38\u91cf\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Const constant_name As Data_Type = value\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0c<code>constant_name<\/code> \u662f\u5e38\u91cf\u7684\u540d\u79f0\uff0c<code>Data_Type<\/code> \u662f\u5e38\u91cf\u7684\u6570\u636e\u7c7b\u578b\uff0c<code>value<\/code> \u662f\u5e38\u91cf\u7684\u503c\u3002\u4f8b\u5982\uff0c\u8981\u5b9a\u4e49\u4e00\u4e2a\u540d\u4e3a <code>PI<\/code> \u7684\u5e38\u91cf\uff0c\u8868\u793a\u5706\u5468\u7387\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Const PI As Double = 3.1415926\n<\/code><\/pre>\n\n\n\n<p>\u5b9a\u4e49\u5e38\u91cf\u540e\uff0c\u65e0\u6cd5\u66f4\u6539\u5176\u503c\u3002\u5e38\u91cf\u901a\u5e38\u7528\u4e8e\u5728\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u4e0d\u53d8\u7684\u503c\uff0c\u4f8b\u5982\u6570\u5b66\u5e38\u91cf\u3001\u56fa\u5b9a\u7684\u5b57\u7b26\u4e32\u7b49\u3002<\/p>\n\n\n\n<p>\u53d8\u91cf\u548c\u5e38\u91cf\u5728 VB.NET \u4e2d\u90fd\u4f7f\u7528\u4e0d\u540c\u7684\u5173\u952e\u5b57\u6765\u58f0\u660e\uff0c\u53d8\u91cf\u4f7f\u7528 <code>Dim<\/code>\uff0c\u5e38\u91cf\u4f7f\u7528 <code>Const<\/code>\u3002\u6839\u636e\u9700\u8981\uff0c\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u521b\u5efa\u4efb\u610f\u6570\u91cf\u7684\u53d8\u91cf\u548c\u5e38\u91cf\uff0c\u4f46\u662f\u5e94\u5c3d\u53ef\u80fd\u907f\u514d\u521b\u5efa\u8fc7\u591a\u7684\u53d8\u91cf\u548c\u5e38\u91cf\uff0c\u4ee5\u907f\u514d\u6d6a\u8d39\u5185\u5b58\u548c\u5f71\u54cd\u7a0b\u5e8f\u6027\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u8fd0\u7b97\u7b26<\/p>\n\n\n\n<p>VB.NET \u4e2d\u7684\u8fd0\u7b97\u7b26\u7528\u4e8e\u6267\u884c\u5404\u79cd\u8ba1\u7b97\u4efb\u52a1\u3002\u4ee5\u4e0b\u662f VB.NET \u4e2d\u5e38\u7528\u7684\u8fd0\u7b97\u7b26\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7b97\u672f\u8fd0\u7b97\u7b26\uff1a\u7528\u4e8e\u6267\u884c\u57fa\u672c\u7684\u6570\u5b66\u8ba1\u7b97\uff0c\u4f8b\u5982\u52a0\u6cd5\u3001\u51cf\u6cd5\u3001\u4e58\u6cd5\u548c\u9664\u6cd5\u7b49\u3002\u4ee5\u4e0b\u662f VB.NET \u4e2d\u7684\u7b97\u672f\u8fd0\u7b97\u7b26\uff1a<ul><li>\u52a0\u6cd5\u8fd0\u7b97\u7b26\uff08+\uff09<\/li><li>\u51cf\u6cd5\u8fd0\u7b97\u7b26\uff08-\uff09<\/li><li>\u4e58\u6cd5\u8fd0\u7b97\u7b26\uff08*\uff09<\/li><li>\u9664\u6cd5\u8fd0\u7b97\u7b26\uff08\/\uff09<\/li><li>\u53d6\u6a21\u8fd0\u7b97\u7b26\uff08Mod\uff09<\/li><\/ul>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6bb5\u5c06\u4e24\u4e2a\u53d8\u91cf\u76f8\u52a0\u5e76\u5c06\u7ed3\u679c\u8d4b\u7ed9\u7b2c\u4e09\u4e2a\u53d8\u91cf\uff1avbnetCopy code<code>Dim num1 As Integer = 10 Dim num2 As Integer = 20 Dim sum As Integer = num1 + num2<\/code><\/li>\n\n\n\n<li>\u5173\u7cfb\u8fd0\u7b97\u7b26\uff1a\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u503c\u5e76\u8fd4\u56de\u5e03\u5c14\u503c\uff08True \u6216 False\uff09\u3002\u4ee5\u4e0b\u662f VB.NET \u4e2d\u7684\u5173\u7cfb\u8fd0\u7b97\u7b26\uff1a<ul><li>\u7b49\u4e8e\u8fd0\u7b97\u7b26\uff08=\uff09<\/li><li>\u4e0d\u7b49\u4e8e\u8fd0\u7b97\u7b26\uff08&lt;&gt;\uff09<\/li><li>\u5927\u4e8e\u8fd0\u7b97\u7b26\uff08&gt;\uff09<\/li><li>\u5c0f\u4e8e\u8fd0\u7b97\u7b26\uff08&lt;\uff09<\/li><li>\u5927\u4e8e\u7b49\u4e8e\u8fd0\u7b97\u7b26\uff08&gt;=\uff09<\/li><li>\u5c0f\u4e8e\u7b49\u4e8e\u8fd0\u7b97\u7b26\uff08&lt;=\uff09<\/li><\/ul>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6bb5\u5c06\u6bd4\u8f83\u4e24\u4e2a\u53d8\u91cf\u7684\u503c\u5e76\u5c06\u7ed3\u679c\u8d4b\u7ed9\u4e00\u4e2a\u5e03\u5c14\u53d8\u91cf\uff1avbnetCopy code<code>Dim num1 As Integer = 10 Dim num2 As Integer = 20 Dim result As Boolean = num1 &lt; num2<\/code><\/li>\n\n\n\n<li>\u903b\u8f91\u8fd0\u7b97\u7b26\uff1a\u7528\u4e8e\u5728\u5e03\u5c14\u8868\u8fbe\u5f0f\u4e2d\u6267\u884c\u903b\u8f91\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f VB.NET \u4e2d\u7684\u903b\u8f91\u8fd0\u7b97\u7b26\uff1a<ul><li>\u903b\u8f91\u4e0e\u8fd0\u7b97\u7b26\uff08And\uff09<\/li><li>\u903b\u8f91\u6216\u8fd0\u7b97\u7b26\uff08Or\uff09<\/li><li>\u903b\u8f91\u975e\u8fd0\u7b97\u7b26\uff08Not\uff09<\/li><\/ul>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6bb5\u5c06\u68c0\u67e5\u4e24\u4e2a\u53d8\u91cf\u7684\u503c\u662f\u5426\u540c\u65f6\u4e3a True \u5e76\u5c06\u7ed3\u679c\u8d4b\u7ed9\u4e00\u4e2a\u5e03\u5c14\u53d8\u91cf\uff1avbnetCopy code<code>Dim bool1 As Boolean = True Dim bool2 As Boolean = False Dim result As Boolean = bool1 And bool2<\/code><\/li>\n\n\n\n<li>\u4f4d\u8fd0\u7b97\u7b26\uff1a\u7528\u4e8e\u5904\u7406\u4e8c\u8fdb\u5236\u6570\u7684\u4f4d\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f VB.NET \u4e2d\u7684\u4f4d\u8fd0\u7b97\u7b26\uff1a<ul><li>\u6309\u4f4d\u4e0e\u8fd0\u7b97\u7b26\uff08And\uff09<\/li><li>\u6309\u4f4d\u6216\u8fd0\u7b97\u7b26\uff08Or\uff09<\/li><li>\u6309\u4f4d\u5f02\u6216\u8fd0\u7b97\u7b26\uff08Xor\uff09<\/li><li>\u6309\u4f4d\u53d6\u53cd\u8fd0\u7b97\u7b26\uff08Not\uff09<\/li><li>\u5de6\u79fb\u4f4d\u8fd0\u7b97\u7b26\uff08&lt;&lt;\uff09<\/li><li>\u53f3\u79fb\u4f4d\u8fd0\u7b97\u7b26\uff08&gt;&gt;\uff09<\/li><\/ul>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6bb5\u5c06\u6267\u884c\u6309\u4f4d\u4e0e\u8fd0\u7b97\u5e76\u5c06\u7ed3\u679c\u8d4b\u7ed9\u4e00\u4e2a\u6574\u578b\u53d8\u91cf\uff1avbnetCopy code<code>Dim num1 As Integer = 10 Dim num2 As Integer = 20 Dim result As Integer = num1 And num2<\/code><\/li>\n\n\n\n<li>\u5176\u4ed6\u8fd0\u7b97\u7b26\uff1aVB.NET \u4e2d\u8fd8\u6709\u5176\u4ed6\u4e00\u4e9b\u7279\u6b8a\u7684\u8fd0\u7b97\u7b26\uff0c\u4f8b\u5982\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7c7b\u578b\u8f6c\u6362\u8fd0\u7b97\u7b26\uff08CType\u3001CInt\u3001CStr \u7b49\uff09<\/li>\n\n\n\n<li>\u7a7a\u503c\u5408\u5e76\u8fd0\u7b97\u7b26\uff08??\uff09<\/li>\n\n\n\n<li>\u6761\u4ef6\u8fd0\u7b97\u7b26\uff08If<\/li>\n<\/ul>\n<\/li>\n<\/ol>\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u6d41\u7a0b\u63a7\u5236If&#8230;Then&#8230;Else<\/p>\n\n\n\n<p>VB.NET \u7684 If&#8230;Then&#8230;Else \u8bed\u53e5\u7528\u4e8e\u6839\u636e\u4e00\u4e2a\u6216\u591a\u4e2a\u6761\u4ef6\u6267\u884c\u4ee3\u7801\u5757\u3002\u4ee5\u4e0b\u662f If&#8230;Then&#8230;Else \u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>If condition Then\n   ' \u6267\u884c\u8bed\u53e5\u5757\nElse\n   ' \u6267\u884c\u8bed\u53e5\u5757\nEnd If\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ccondition \u662f\u8981\u6d4b\u8bd5\u7684\u6761\u4ef6\u8868\u8fbe\u5f0f\u3002\u5982\u679c\u6761\u4ef6\u8868\u8fbe\u5f0f\u7684\u503c\u4e3a True\uff0c\u5219\u6267\u884c\u7b2c\u4e00\u4e2a\u8bed\u53e5\u5757\u3002\u5982\u679c\u6761\u4ef6\u8868\u8fbe\u5f0f\u7684\u503c\u4e3a False\uff0c\u5219\u6267\u884c\u7b2c\u4e8c\u4e2a\u8bed\u53e5\u5757\u3002<\/p>\n\n\n\n<p>\u53ef\u4ee5\u6839\u636e\u9700\u8981\u6dfb\u52a0\u591a\u4e2a ElseIf \u8bed\u53e5\u6765\u6d4b\u8bd5\u591a\u4e2a\u6761\u4ef6\u3002\u4ee5\u4e0b\u662f If&#8230;Then&#8230;ElseIf&#8230;Else \u8bed\u53e5\u7684\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>If condition1 Then\n   ' \u6267\u884c\u8bed\u53e5\u57571\nElseIf condition2 Then\n   ' \u6267\u884c\u8bed\u53e5\u57572\nElseIf condition3 Then\n   ' \u6267\u884c\u8bed\u53e5\u57573\nElse\n   ' \u6267\u884c\u8bed\u53e5\u57574\nEnd If\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5982\u679c condition1 \u7684\u503c\u4e3a True\uff0c\u5219\u6267\u884c\u8bed\u53e5\u57571\uff1b\u5426\u5219\uff0c\u5982\u679c condition2 \u7684\u503c\u4e3a True\uff0c\u5219\u6267\u884c\u8bed\u53e5\u57572\uff1b\u5982\u679c condition3 \u7684\u503c\u4e3a True\uff0c\u5219\u6267\u884c\u8bed\u53e5\u57573\uff1b\u5982\u679c\u6240\u6709\u6761\u4ef6\u7684\u503c\u90fd\u4e3a False\uff0c\u5219\u6267\u884c\u8bed\u53e5\u57574\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528 If&#8230;Then&#8230;Else \u8bed\u53e5\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mathematicaCopy code<code>Dim score As Integer = 80\n\nIf score &gt;= 90 Then\n   Console.WriteLine(\"\u4f18\u79c0\")\nElseIf score &gt;= 80 Then\n   Console.WriteLine(\"\u826f\u597d\")\nElseIf score &gt;= 70 Then\n   Console.WriteLine(\"\u4e2d\u7b49\")\nElseIf score &gt;= 60 Then\n   Console.WriteLine(\"\u53ca\u683c\")\nElse\n   Console.WriteLine(\"\u4e0d\u53ca\u683c\")\nEnd If\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6839\u636e\u5206\u6570\u7684\u4e0d\u540c\uff0c\u8f93\u51fa\u4e0d\u540c\u7684\u6210\u7ee9\u7b49\u7ea7\u3002\u5982\u679c\u5206\u6570\u5927\u4e8e\u7b49\u4e8e 90\uff0c\u5219\u8f93\u51fa &#8220;\u4f18\u79c0&#8221;\uff1b\u5426\u5219\uff0c\u5982\u679c\u5206\u6570\u5927\u4e8e\u7b49\u4e8e 80\uff0c\u5219\u8f93\u51fa &#8220;\u826f\u597d&#8221;\uff1b\u4ee5\u6b64\u7c7b\u63a8\u3002\u5982\u679c\u5206\u6570\u5c0f\u4e8e 60\uff0c\u5219\u8f93\u51fa &#8220;\u4e0d\u53ca\u683c&#8221;\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u6d41\u7a0b\u63a7\u5236Select Case<\/p>\n\n\n\n<p>VB.NET \u7684 Select Case \u8bed\u53e5\u7528\u4e8e\u6839\u636e\u4e00\u4e2a\u8868\u8fbe\u5f0f\u7684\u503c\u6267\u884c\u4e0d\u540c\u7684\u4ee3\u7801\u5757\u3002\u4ee5\u4e0b\u662f Select Case \u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Select Case expression\n   Case value1\n      ' \u6267\u884c\u8bed\u53e5\u57571\n   Case value2\n      ' \u6267\u884c\u8bed\u53e5\u57572\n   Case value3\n      ' \u6267\u884c\u8bed\u53e5\u57573\n   Case Else\n      ' \u6267\u884c\u8bed\u53e5\u57574\nEnd Select\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cexpression \u662f\u8981\u6d4b\u8bd5\u7684\u8868\u8fbe\u5f0f\uff0cvalue1\u3001value2\u3001value3 \u662f\u53ef\u80fd\u7684\u8868\u8fbe\u5f0f\u503c\u3002\u5982\u679c expression \u7684\u503c\u7b49\u4e8e value1\uff0c\u5219\u6267\u884c\u8bed\u53e5\u57571\uff1b\u5982\u679c expression \u7684\u503c\u7b49\u4e8e value2\uff0c\u5219\u6267\u884c\u8bed\u53e5\u57572\uff1b\u4ee5\u6b64\u7c7b\u63a8\u3002\u5982\u679c expression \u7684\u503c\u4e0e\u6240\u6709\u53ef\u80fd\u7684\u503c\u90fd\u4e0d\u5339\u914d\uff0c\u5219\u6267\u884c\u8bed\u53e5\u57574\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528 Select Case \u8bed\u53e5\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim dayOfWeek As Integer = 4\n\nSelect Case dayOfWeek\n   Case 1\n      Console.WriteLine(\"\u661f\u671f\u4e00\")\n   Case 2\n      Console.WriteLine(\"\u661f\u671f\u4e8c\")\n   Case 3\n      Console.WriteLine(\"\u661f\u671f\u4e09\")\n   Case 4\n      Console.WriteLine(\"\u661f\u671f\u56db\")\n   Case 5\n      Console.WriteLine(\"\u661f\u671f\u4e94\")\n   Case 6\n      Console.WriteLine(\"\u661f\u671f\u516d\")\n   Case 7\n      Console.WriteLine(\"\u661f\u671f\u65e5\")\n   Case Else\n      Console.WriteLine(\"\u65e0\u6548\u7684\u65e5\u671f\")\nEnd Select\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6839\u636e dayOfWeek \u7684\u503c\uff0c\u8f93\u51fa\u76f8\u5e94\u7684\u661f\u671f\u51e0\u3002\u5982\u679c dayOfWeek \u7684\u503c\u4e3a 1\uff0c\u5219\u8f93\u51fa &#8220;\u661f\u671f\u4e00&#8221;\uff1b\u4ee5\u6b64\u7c7b\u63a8\u3002\u5982\u679c dayOfWeek \u7684\u503c\u4e0e\u6240\u6709\u53ef\u80fd\u7684\u503c\u90fd\u4e0d\u5339\u914d\uff0c\u5219\u8f93\u51fa &#8220;\u65e0\u6548\u7684\u65e5\u671f&#8221;\u3002<\/p>\n\n\n\n<p>Select Case \u8bed\u53e5\u8fd8\u53ef\u4ee5\u4f7f\u7528\u8303\u56f4\uff08Range\uff09\u6765\u6d4b\u8bd5\u8868\u8fbe\u5f0f\u7684\u503c\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u8303\u56f4\u7684 Select Case \u8bed\u53e5\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim age As Integer = 25\n\nSelect Case age\n   Case 0 To 18\n      Console.WriteLine(\"\u672a\u6210\u5e74\")\n   Case 19 To 29\n      Console.WriteLine(\"\u9752\u5e74\")\n   Case 30 To 39\n      Console.WriteLine(\"\u4e2d\u5e74\")\n   Case Is &gt;= 40\n      Console.WriteLine(\"\u8001\u5e74\")\nEnd Select\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6839\u636e age \u7684\u503c\uff0c\u8f93\u51fa\u76f8\u5e94\u7684\u5e74\u9f84\u6bb5\u3002\u5982\u679c age \u7684\u503c\u5728 0 \u5230 18 \u4e4b\u95f4\uff0c\u5219\u8f93\u51fa &#8220;\u672a\u6210\u5e74&#8221;\uff1b\u5982\u679c age \u7684\u503c\u5728 19 \u5230 29 \u4e4b\u95f4\uff0c\u5219\u8f93\u51fa &#8220;\u9752\u5e74&#8221;\uff1b\u4ee5\u6b64\u7c7b\u63a8\u3002\u6700\u540e\u4e00\u4e2a Case \u8bed\u53e5\u4f7f\u7528\u4e86 Is &gt;= \u8fd0\u7b97\u7b26\u6765\u6d4b\u8bd5 age \u7684\u503c\u662f\u5426\u5927\u4e8e\u7b49\u4e8e 40\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u6d41\u7a0b\u63a7\u5236For<\/p>\n\n\n\n<p>VB.NET \u4e2d\u7684 For \u5faa\u73af\u8bed\u53e5\u7528\u4e8e\u6267\u884c\u6307\u5b9a\u6b21\u6570\u7684\u5faa\u73af\u3002\u4ee5\u4e0b\u662f For \u5faa\u73af\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>For counter As Integer = start To end Step stepSize\n   ' \u6267\u884c\u5faa\u73af\u4f53\u4ee3\u7801\u5757\nNext\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ccounter \u662f\u5faa\u73af\u8ba1\u6570\u5668\u7684\u53d8\u91cf\u540d\uff0cstart \u662f\u8ba1\u6570\u5668\u7684\u8d77\u59cb\u503c\uff0cend \u662f\u8ba1\u6570\u5668\u7684\u7ec8\u6b62\u503c\uff0cstepSize \u662f\u8ba1\u6570\u5668\u6bcf\u6b21\u589e\u52a0\u7684\u91cf\u3002\u5faa\u73af\u4f53\u4ee3\u7801\u5757\u662f\u8981\u91cd\u590d\u6267\u884c\u7684\u4ee3\u7801\u5757\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528 For \u5faa\u73af\u8bed\u53e5\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>For i As Integer = 1 To 10 Step 1\n   Console.WriteLine(i)\nNext\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u8ba1\u6570\u5668 i\uff0c\u8d77\u59cb\u503c\u4e3a 1\uff0c\u7ec8\u6b62\u503c\u4e3a 10\uff0c\u6bcf\u6b21\u589e\u52a0 1\u3002\u5728\u5faa\u73af\u4f53\u4e2d\uff0c\u4f7f\u7528 Console.WriteLine() \u65b9\u6cd5\u8f93\u51fa\u8ba1\u6570\u5668\u7684\u503c\u3002\u8be5\u5faa\u73af\u5c06\u8f93\u51fa\u6570\u5b57 1 \u5230 10\u3002<\/p>\n\n\n\n<p>\u53e6\u5916\uff0c\u5982\u679c\u8981\u4f7f\u7528\u9012\u51cf\u7684\u8ba1\u6570\u5668\uff0c\u53ef\u4ee5\u5c06 Step \u53c2\u6570\u6307\u5b9a\u4e3a\u8d1f\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>For i As Integer = 10 To 1 Step -1\n   Console.WriteLine(i)\nNext\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u8ba1\u6570\u5668 i\uff0c\u8d77\u59cb\u503c\u4e3a 10\uff0c\u7ec8\u6b62\u503c\u4e3a 1\uff0c\u6bcf\u6b21\u9012\u51cf 1\u3002\u5728\u5faa\u73af\u4f53\u4e2d\uff0c\u4f7f\u7528 Console.WriteLine() \u65b9\u6cd5\u8f93\u51fa\u8ba1\u6570\u5668\u7684\u503c\u3002\u8be5\u5faa\u73af\u5c06\u8f93\u51fa\u6570\u5b57 10 \u5230 1\u3002<\/p>\n\n\n\n<p>\u5728 For \u5faa\u73af\u8bed\u53e5\u4e2d\uff0c\u53ef\u4ee5\u5728 Next \u5173\u952e\u5b57\u540e\u9762\u52a0\u4e0a\u8ba1\u6570\u5668\u53d8\u91cf\u540d\uff0c\u4ee5\u6807\u8bc6\u5faa\u73af\u7684\u7ed3\u675f\u4f4d\u7f6e\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>For i As Integer = 1 To 10 Step 1\n   Console.WriteLine(i)\nNext i\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u8ba1\u6570\u5668\u53d8\u91cf\u540d\u4e3a i\uff0c\u5faa\u73af\u4f53\u4e2d\u7684\u4ee3\u7801\u4f1a\u6267\u884c 10 \u6b21\u3002\u5f53 i \u7684\u503c\u7b49\u4e8e 10 \u65f6\uff0c\u5faa\u73af\u7ed3\u675f\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u6d41\u7a0b\u63a7\u5236While<\/p>\n\n\n\n<p>VB.NET \u4e2d\u7684 While \u5faa\u73af\u8bed\u53e5\u7528\u4e8e\u91cd\u590d\u6267\u884c\u4e00\u6bb5\u4ee3\u7801\uff0c\u76f4\u5230\u6307\u5b9a\u7684\u6761\u4ef6\u4e0d\u518d\u6ee1\u8db3\u4e3a\u6b62\u3002\u4ee5\u4e0b\u662f While \u5faa\u73af\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>While condition\n   ' \u6267\u884c\u5faa\u73af\u4f53\u4ee3\u7801\u5757\nEnd While\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ccondition \u662f\u4e00\u4e2a\u8868\u8fbe\u5f0f\uff0c\u5982\u679c\u5b83\u7684\u503c\u4e3a True\uff0c\u5219\u5faa\u73af\u4f53\u4e2d\u7684\u4ee3\u7801\u4f1a\u88ab\u6267\u884c\u3002\u5982\u679c condition \u7684\u503c\u4e3a False\uff0c\u5219\u5faa\u73af\u7ed3\u675f\uff0c\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528 While \u5faa\u73af\u8bed\u53e5\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim i As Integer = 1\n\nWhile i &lt;= 10\n   Console.WriteLine(i)\n   i += 1\nEnd While\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u53d8\u91cf i\uff0c\u521d\u59cb\u503c\u4e3a 1\u3002\u5728 While \u5faa\u73af\u4e2d\uff0c\u68c0\u67e5 i \u662f\u5426\u5c0f\u4e8e\u7b49\u4e8e 10\uff0c\u5982\u679c\u662f\uff0c\u5219\u8f93\u51fa i \u7684\u503c\uff0c\u5e76\u5c06 i \u52a0 1\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u4e00\u76f4\u91cd\u590d\u6267\u884c\uff0c\u76f4\u5230 i \u7684\u503c\u5927\u4e8e 10\uff0c\u5faa\u73af\u7ed3\u675f\u3002<\/p>\n\n\n\n<p>\u5728 While \u5faa\u73af\u4e2d\uff0c\u8981\u6ce8\u610f\u907f\u514d\u6b7b\u5faa\u73af\u3002\u5982\u679c\u5faa\u73af\u6761\u4ef6\u59cb\u7ec8\u4e3a True\uff0c\u5faa\u73af\u4f53\u4e2d\u7684\u4ee3\u7801\u5c06\u4e00\u76f4\u6267\u884c\uff0c\u7a0b\u5e8f\u53ef\u80fd\u4f1a\u5361\u6b7b\u3002\u56e0\u6b64\uff0c\u5728\u7f16\u5199 While \u5faa\u73af\u8bed\u53e5\u65f6\uff0c\u8981\u786e\u4fdd\u5faa\u73af\u6761\u4ef6\u80fd\u591f\u5728\u4e00\u5b9a\u7684\u6761\u4ef6\u4e0b\u7ed3\u675f\u5faa\u73af\u3002<\/p>\n\n\n\n<p>\u9664\u4e86 While \u5faa\u73af\u4e4b\u5916\uff0cVB.NET \u8fd8\u63d0\u4f9b\u4e86 Do While \u548c Do Until \u5faa\u73af\u8bed\u53e5\u3002\u5b83\u4eec\u7684\u8bed\u6cd5\u5f62\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>' Do While \u5faa\u73af\nDo While condition\n   ' \u6267\u884c\u5faa\u73af\u4f53\u4ee3\u7801\u5757\nLoop\n\n' Do Until \u5faa\u73af\nDo Until condition\n   ' \u6267\u884c\u5faa\u73af\u4f53\u4ee3\u7801\u5757\nLoop\n<\/code><\/pre>\n\n\n\n<p>\u5728 Do While \u5faa\u73af\u4e2d\uff0c\u53ea\u6709\u5f53 condition \u7684\u503c\u4e3a True \u65f6\uff0c\u624d\u4f1a\u6267\u884c\u5faa\u73af\u4f53\u4e2d\u7684\u4ee3\u7801\u3002\u5728 Do Until \u5faa\u73af\u4e2d\uff0c\u53ea\u6709\u5f53 condition \u7684\u503c\u4e3a False \u65f6\uff0c\u624d\u4f1a\u6267\u884c\u5faa\u73af\u4f53\u4e2d\u7684\u4ee3\u7801\u3002\u5faa\u73af\u7ed3\u675f\u7684\u6761\u4ef6\u4e0e While \u5faa\u73af\u76f8\u53cd\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u6d41\u7a0b\u63a7\u5236Do&#8230;Loop<\/p>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0cDo&#8230;Loop \u8bed\u53e5\u7528\u4e8e\u91cd\u590d\u6267\u884c\u4e00\u6bb5\u4ee3\u7801\uff0c\u76f4\u5230\u6307\u5b9a\u7684\u6761\u4ef6\u4e0d\u518d\u6ee1\u8db3\u4e3a\u6b62\u3002\u4ee5\u4e0b\u662f Do&#8230;Loop \u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Do\n   ' \u6267\u884c\u5faa\u73af\u4f53\u4ee3\u7801\u5757\nLoop While condition\n<\/code><\/pre>\n\n\n\n<p>\u6216\u8005<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Do\n   ' \u6267\u884c\u5faa\u73af\u4f53\u4ee3\u7801\u5757\nLoop Until condition\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ccondition \u662f\u4e00\u4e2a\u5e03\u5c14\u8868\u8fbe\u5f0f\uff0c\u5982\u679c\u5b83\u7684\u503c\u4e3a True\uff0c\u5219\u7ee7\u7eed\u6267\u884c\u5faa\u73af\u4f53\u4e2d\u7684\u4ee3\u7801\u3002\u5982\u679c condition \u7684\u503c\u4e3a False\uff0c\u5219\u5faa\u73af\u7ed3\u675f\uff0c\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\u3002\u5728\u7b2c\u4e00\u79cd\u5f62\u5f0f\u7684 Do&#8230;Loop \u4e2d\uff0c\u5faa\u73af\u6761\u4ef6\u4f4d\u4e8e While \u5b50\u53e5\u4e2d\uff0c\u5728\u7b2c\u4e8c\u79cd\u5f62\u5f0f\u4e2d\uff0c\u5faa\u73af\u6761\u4ef6\u4f4d\u4e8e Until \u5b50\u53e5\u4e2d\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528 Do&#8230;Loop \u5faa\u73af\u8bed\u53e5\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim i As Integer = 1\n\nDo While i &lt;= 10\n   Console.WriteLine(i)\n   i += 1\nLoop\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u53d8\u91cf i\uff0c\u521d\u59cb\u503c\u4e3a 1\u3002\u5728 Do While \u5faa\u73af\u4e2d\uff0c\u68c0\u67e5 i \u662f\u5426\u5c0f\u4e8e\u7b49\u4e8e 10\uff0c\u5982\u679c\u662f\uff0c\u5219\u8f93\u51fa i \u7684\u503c\uff0c\u5e76\u5c06 i \u52a0 1\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u4e00\u76f4\u91cd\u590d\u6267\u884c\uff0c\u76f4\u5230 i \u7684\u503c\u5927\u4e8e 10\uff0c\u5faa\u73af\u7ed3\u675f\u3002<\/p>\n\n\n\n<p>\u4e0e While \u5faa\u73af\u4e00\u6837\uff0cDo&#8230;Loop \u5faa\u73af\u4e5f\u9700\u8981\u6ce8\u610f\u907f\u514d\u6b7b\u5faa\u73af\u3002\u5982\u679c\u5faa\u73af\u6761\u4ef6\u59cb\u7ec8\u4e3a True\uff0c\u5faa\u73af\u4f53\u4e2d\u7684\u4ee3\u7801\u5c06\u4e00\u76f4\u6267\u884c\uff0c\u7a0b\u5e8f\u53ef\u80fd\u4f1a\u5361\u6b7b\u3002\u56e0\u6b64\uff0c\u5728\u7f16\u5199 Do&#8230;Loop \u5faa\u73af\u8bed\u53e5\u65f6\uff0c\u8981\u786e\u4fdd\u5faa\u73af\u6761\u4ef6\u80fd\u591f\u5728\u4e00\u5b9a\u7684\u6761\u4ef6\u4e0b\u7ed3\u675f\u5faa\u73af\u3002<\/p>\n\n\n\n<p>\u9664\u4e86 Do While \u548c Do Until \u5faa\u73af\u4e4b\u5916\uff0cVB.NET \u8fd8\u63d0\u4f9b\u4e86 For \u548c While \u5faa\u73af\u8bed\u53e5\uff0c\u5177\u4f53\u4f7f\u7528\u54ea\u79cd\u5faa\u73af\u8bed\u53e5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u9700\u6c42\u548c\u7f16\u7a0b\u4e60\u60ef\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u6d41\u7a0b\u63a7\u5236Goto\uff0cExit<\/p>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0cGoto \u548c Exit \u8bed\u53e5\u7528\u4e8e\u5728\u7a0b\u5e8f\u6267\u884c\u671f\u95f4\u8df3\u8f6c\u5230\u4ee3\u7801\u4e2d\u7684\u5176\u4ed6\u4f4d\u7f6e\u6216\u9000\u51fa\u67d0\u4e2a\u5faa\u73af\u6216\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p>Goto \u8bed\u53e5\u53ef\u4ee5\u5c06\u63a7\u5236\u6743\u8f6c\u79fb\u5230\u6307\u5b9a\u7684\u4ee3\u7801\u884c\uff0c\u5b83\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>Goto label\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d label \u662f\u5728\u4ee3\u7801\u4e2d\u5b9a\u4e49\u7684\u6807\u7b7e\uff0c\u5b83\u53ef\u4ee5\u662f\u4efb\u4f55\u6587\u672c\u5b57\u7b26\u4e32\uff0c\u4f46\u5fc5\u987b\u662f\u552f\u4e00\u7684\u3002\u4f7f\u7528 Goto \u8bed\u53e5\u65f6\uff0c\u8981\u786e\u4fdd\u6307\u5b9a\u7684\u6807\u7b7e\u5b58\u5728\u4e8e\u4ee3\u7801\u4e2d\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528 Goto \u8bed\u53e5\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mathematicaCopy code<code>Dim i As Integer = 1\n\nStart:\n   Console.WriteLine(i)\n   i += 1\n   If i &lt;= 10 Then\n      Goto Start\n   End If\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u53d8\u91cf i\uff0c\u521d\u59cb\u503c\u4e3a 1\u3002\u5728\u6807\u7b7e Start \u5904\u8f93\u51fa i \u7684\u503c\uff0c\u5e76\u5c06 i \u52a0 1\u3002\u7136\u540e\uff0c\u68c0\u67e5 i \u662f\u5426\u5c0f\u4e8e\u7b49\u4e8e 10\u3002\u5982\u679c\u662f\uff0c\u5219\u8df3\u8f6c\u5230\u6807\u7b7e Start \u5904\uff0c\u5426\u5219\u7ed3\u675f\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4f7f\u7528 Goto \u8bed\u53e5\u4f1a\u4f7f\u7a0b\u5e8f\u7684\u6d41\u7a0b\u53d8\u5f97\u590d\u6742\u548c\u96be\u4ee5\u7406\u89e3\u3002\u56e0\u6b64\uff0c\u5e94\u8be5\u5c3d\u91cf\u907f\u514d\u4f7f\u7528 Goto \u8bed\u53e5\uff0c\u800c\u662f\u4f7f\u7528\u5176\u4ed6\u63a7\u5236\u6d41\u7a0b\u8bed\u53e5\u6765\u5b9e\u73b0\u540c\u6837\u7684\u529f\u80fd\u3002<\/p>\n\n\n\n<p>Exit \u8bed\u53e5\u7528\u4e8e\u5728\u5faa\u73af\u6216\u8fc7\u7a0b\u4e2d\u9000\u51fa\u6267\u884c\uff0c\u5e76\u5c06\u63a7\u5236\u6743\u8fd4\u56de\u5230\u8c03\u7528\u4ee3\u7801\u7684\u4f4d\u7f6e\u3002Exit \u8bed\u53e5\u6709\u4e09\u79cd\u5f62\u5f0f\uff1aExit Do\u3001Exit For \u548c Exit While\u3002\u5206\u522b\u7528\u4e8e\u9000\u51fa Do \u5faa\u73af\u3001For \u5faa\u73af\u548c While \u5faa\u73af\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528 Exit \u8bed\u53e5\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mathematicaCopy code<code>Dim i As Integer = 1\n\nDo While i &lt;= 10\n   Console.WriteLine(i)\n   i += 1\n   If i = 5 Then\n      Exit Do\n   End If\nLoop\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u53d8\u91cf i\uff0c\u521d\u59cb\u503c\u4e3a 1\u3002\u5728 Do While \u5faa\u73af\u4e2d\uff0c\u8f93\u51fa i \u7684\u503c\uff0c\u5e76\u5c06 i \u52a0 1\u3002\u5982\u679c i \u7684\u503c\u7b49\u4e8e 5\uff0c\u5219\u4f7f\u7528 Exit Do \u8bed\u53e5\u9000\u51fa\u5faa\u73af\u3002\u7a0b\u5e8f\u5728\u8f93\u51fa 5 \u540e\u7ed3\u675f\u6267\u884c\u3002<\/p>\n\n\n\n<p>Exit \u8bed\u53e5\u53ef\u4ee5\u4f7f\u7a0b\u5e8f\u7684\u6d41\u7a0b\u66f4\u52a0\u6e05\u6670\u548c\u6613\u4e8e\u7406\u89e3\uff0c\u540c\u65f6\u907f\u514d\u4e86\u4f7f\u7528 Goto \u8bed\u53e5\u6240\u5e26\u6765\u7684\u590d\u6742\u6027\u548c\u4e0d\u4fbf\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u51fd\u6570<\/p>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0c\u51fd\u6570\u662f\u4e00\u6bb5\u53ef\u91cd\u7528\u7684\u4ee3\u7801\uff0c\u5b83\u53ef\u4ee5\u63a5\u53d7\u53c2\u6570\u3001\u6267\u884c\u6307\u5b9a\u7684\u64cd\u4f5c\u5e76\u8fd4\u56de\u4e00\u4e2a\u503c\u3002\u51fd\u6570\u53ef\u4ee5\u7b80\u5316\u7a0b\u5e8f\u5f00\u53d1\uff0c\u907f\u514d\u4ee3\u7801\u91cd\u590d\uff0c\u5e76\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n\n\n\n<p>VB.NET \u4e2d\u7684\u51fd\u6570\u53ef\u4ee5\u4f7f\u7528 Function \u5173\u952e\u5b57\u6765\u5b9a\u4e49\u3002\u51fd\u6570\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Function function_name([arguments]) As data_type\n   ' \u6267\u884c\u64cd\u4f5c\n   ' \u8fd4\u56de\u7ed3\u679c\nEnd Function\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d function_name \u662f\u51fd\u6570\u7684\u540d\u79f0\uff0carguments \u662f\u51fd\u6570\u63a5\u53d7\u7684\u53c2\u6570\u5217\u8868\uff0cdata_type \u662f\u51fd\u6570\u8fd4\u56de\u503c\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u51fd\u6570\u793a\u4f8b\uff0c\u5b83\u63a5\u53d7\u4e24\u4e2a\u6574\u6570\u4f5c\u4e3a\u53c2\u6570\u5e76\u8fd4\u56de\u5b83\u4eec\u7684\u548c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Function Add(ByVal num1 As Integer, ByVal num2 As Integer) As Integer\n   Dim result As Integer = num1 + num2\n   Return result\nEnd Function\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u51fd\u6570\u540d\u79f0\u4e3a Add\uff0c\u5b83\u63a5\u53d7\u4e24\u4e2a\u6574\u6570\u53c2\u6570 num1 \u548c num2\uff0c\u5e76\u5c06\u5b83\u4eec\u76f8\u52a0\u5e76\u5c06\u7ed3\u679c\u5b58\u50a8\u5728 result \u53d8\u91cf\u4e2d\u3002\u7136\u540e\u4f7f\u7528 Return \u8bed\u53e5\u5c06\u7ed3\u679c\u8fd4\u56de\u3002<\/p>\n\n\n\n<p>\u5728\u8c03\u7528\u51fd\u6570\u65f6\uff0c\u9700\u8981\u63d0\u4f9b\u51fd\u6570\u6240\u9700\u7684\u53c2\u6570\uff0c\u5e76\u5c06\u8fd4\u56de\u503c\u5b58\u50a8\u5728\u53d8\u91cf\u4e2d\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim a As Integer = 10\nDim b As Integer = 20\nDim c As Integer = Add(a, b)\nConsole.WriteLine(\"The sum of {0} and {1} is {2}\", a, b, c)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e09\u4e2a\u53d8\u91cf a\u3001b \u548c c\u3002\u8c03\u7528 Add \u51fd\u6570\u5e76\u5c06 a \u548c b \u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u3002\u51fd\u6570\u5c06\u8fd4\u56de\u503c\u5b58\u50a8\u5728 c \u53d8\u91cf\u4e2d\uff0c\u5e76\u5728\u63a7\u5236\u53f0\u4e0a\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0c\u51fd\u6570\u53ef\u4ee5\u63a5\u53d7\u591a\u4e2a\u53c2\u6570\uff0c\u5e76\u4e14\u53ef\u4ee5\u8fd4\u56de\u4e0d\u540c\u7c7b\u578b\u7684\u503c\u3002\u51fd\u6570\u4e5f\u53ef\u4ee5\u6709\u9ed8\u8ba4\u53c2\u6570\u548c\u53ef\u9009\u53c2\u6570\uff0c\u8fd9\u4f7f\u5f97\u51fd\u6570\u66f4\u52a0\u7075\u6d3b\u548c\u6613\u4e8e\u4f7f\u7528\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u5b50\u8fc7\u7a0b<\/p>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0c\u5b50\u8fc7\u7a0b\u662f\u4e00\u6bb5\u53ef\u91cd\u7528\u7684\u4ee3\u7801\uff0c\u5b83\u53ef\u4ee5\u6267\u884c\u4e00\u4e9b\u64cd\u4f5c\uff0c\u4f46\u4e0d\u8fd4\u56de\u4efb\u4f55\u503c\u3002\u4e0e\u51fd\u6570\u4e0d\u540c\uff0c\u5b50\u8fc7\u7a0b\u53ea\u662f\u4e00\u6bb5\u8fc7\u7a0b\u6027\u7684\u4ee3\u7801\u5757\uff0c\u5b83\u4eec\u4e0d\u80fd\u8fd4\u56de\u503c\u3002<\/p>\n\n\n\n<p>VB.NET \u4e2d\u7684\u5b50\u8fc7\u7a0b\u53ef\u4ee5\u4f7f\u7528 Sub \u5173\u952e\u5b57\u6765\u5b9a\u4e49\u3002\u5b50\u8fc7\u7a0b\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Sub sub_name([arguments])\n   ' \u6267\u884c\u64cd\u4f5c\nEnd Sub\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d sub_name \u662f\u5b50\u8fc7\u7a0b\u7684\u540d\u79f0\uff0carguments \u662f\u5b50\u8fc7\u7a0b\u63a5\u53d7\u7684\u53c2\u6570\u5217\u8868\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u5b50\u8fc7\u7a0b\u793a\u4f8b\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a\u5b57\u7b26\u4e32\u4f5c\u4e3a\u53c2\u6570\u5e76\u5c06\u5176\u8f93\u51fa\u5230\u63a7\u5236\u53f0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Sub Print(ByVal message As String)\n   Console.WriteLine(message)\nEnd Sub\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b50\u8fc7\u7a0b\u540d\u79f0\u4e3a Print\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a\u5b57\u7b26\u4e32\u53c2\u6570 message\uff0c\u5e76\u4f7f\u7528 Console.WriteLine \u5c06\u5176\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u3002<\/p>\n\n\n\n<p>\u5728\u8c03\u7528\u5b50\u8fc7\u7a0b\u65f6\uff0c\u9700\u8981\u63d0\u4f9b\u5b50\u8fc7\u7a0b\u6240\u9700\u7684\u53c2\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim msg As String = \"Hello, World!\"\nPrint(msg)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5b57\u7b26\u4e32\u53d8\u91cf msg\uff0c\u5e76\u5c06\u5176\u4f20\u9012\u7ed9 Print \u5b50\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0c\u5b50\u8fc7\u7a0b\u53ef\u4ee5\u63a5\u53d7\u591a\u4e2a\u53c2\u6570\uff0c\u5b83\u4eec\u53ef\u4ee5\u662f ByVal\uff08\u4f20\u9012\u503c\uff09\u6216 ByRef\uff08\u4f20\u9012\u5f15\u7528\uff09\u53c2\u6570\u3002ByRef \u53c2\u6570\u5141\u8bb8\u5b50\u8fc7\u7a0b\u4fee\u6539\u53c2\u6570\u7684\u503c\uff0c\u5e76\u5c06\u5176\u8fd4\u56de\u5230\u8c03\u7528\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<p>\u4e0e\u51fd\u6570\u7c7b\u4f3c\uff0c\u5b50\u8fc7\u7a0b\u4e5f\u53ef\u4ee5\u6709\u9ed8\u8ba4\u53c2\u6570\u548c\u53ef\u9009\u53c2\u6570\u3002\u53ef\u4ee5\u4f7f\u7528 Optional \u5173\u952e\u5b57\u6765\u5b9a\u4e49\u53ef\u9009\u53c2\u6570\uff0c\u5b83\u4eec\u5141\u8bb8\u8c03\u7528\u7a0b\u5e8f\u5ffd\u7565\u8be5\u53c2\u6570\uff0c\u6216\u8005\u4f7f\u7528\u9ed8\u8ba4\u503c\u4f5c\u4e3a\u53c2\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Sub Print(ByVal message As String, Optional ByVal count As Integer = 1)\n   For i As Integer = 1 To count\n      Console.WriteLine(message)\n   Next\nEnd Sub\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cPrint \u5b50\u8fc7\u7a0b\u63a5\u53d7\u4e00\u4e2a\u5b57\u7b26\u4e32\u53c2\u6570 message \u548c\u4e00\u4e2a\u53ef\u9009\u7684\u6574\u6570\u53c2\u6570 count\u3002\u5982\u679c count \u53c2\u6570\u6ca1\u6709\u88ab\u4f20\u9012\uff0c\u5219\u9ed8\u8ba4\u503c\u4e3a 1\u3002\u5728 Print \u5b50\u8fc7\u7a0b\u4e2d\uff0c\u4f7f\u7528 For \u5faa\u73af\u6765\u8f93\u51fa\u6d88\u606f count \u6b21\u3002\u5982\u679c count \u53c2\u6570\u6ca1\u6709\u88ab\u4f20\u9012\uff0c\u5219\u8f93\u51fa\u4e00\u6b21\u6d88\u606f\u3002<\/p>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528 Call \u8bed\u53e5\u6765\u8c03\u7528\u5b50\u8fc7\u7a0b\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim msg As String = \"Hello, World!\"\nCall Print(msg, 3)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u8c03\u7528 Print \u5b50\u8fc7\u7a0b\u5e76\u5c06 msg \u548c 3 \u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u3002Print \u5b50\u8fc7\u7a0b\u5c06\u8f93\u51fa\u6d88\u606f &#8220;Hello, World!&#8221; \u4e09\u6b21\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.Net\u7684\u6570\u7ec4<\/p>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u7ec4\u5177\u6709\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u503c\u7684\u96c6\u5408\u3002\u6570\u7ec4\u5141\u8bb8\u60a8\u6309\u7d22\u5f15\u8bbf\u95ee\u5b83\u4eec\u7684\u5143\u7d20\uff0c\u5176\u4e2d\u7d22\u5f15\u662f\u4ece 0 \u5f00\u59cb\u7684\u6574\u6570\u503c\u3002VB.NET \u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u6570\u7ec4\uff0c\u5305\u62ec\u4e00\u7ef4\u6570\u7ec4\u3001\u591a\u7ef4\u6570\u7ec4\u548c\u53ef\u53d8\u6570\u7ec4\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f VB.NET \u4e2d\u5b9a\u4e49\u4e00\u7ef4\u6570\u7ec4\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>Dim array_name(size) As data_type\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d array_name \u662f\u6570\u7ec4\u7684\u540d\u79f0\uff0csize \u662f\u6570\u7ec4\u7684\u5927\u5c0f\uff0cdata_type \u662f\u6570\u7ec4\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u5b9a\u4e49\u4e00\u4e2a\u5b58\u50a8\u6574\u6570\u7684\u6570\u7ec4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim numbers(4) As Integer\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u79f0\u4e3a numbers \u7684\u6574\u6570\u6570\u7ec4\uff0c\u5927\u5c0f\u4e3a 5\uff080 \u5230 4\uff09\u3002<\/p>\n\n\n\n<p>\u8981\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\u3002\u4f8b\u5982\uff0c\u8981\u5c06\u503c 10 \u5206\u914d\u7ed9\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>numbers(0) = 10\n<\/code><\/pre>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 For \u5faa\u73af\u6765\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mathematicaCopy code<code>For i As Integer = 0 To numbers.Length - 1\n   Console.WriteLine(numbers(i))\nNext\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528 For \u5faa\u73af\u904d\u5386\u6574\u6570\u6570\u7ec4 numbers\uff0c\u5e76\u5c06\u6bcf\u4e2a\u5143\u7d20\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u3002<\/p>\n\n\n\n<p>VB.NET \u8fd8\u652f\u6301\u591a\u7ef4\u6570\u7ec4\u3002\u4ee5\u4e0b\u662f\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4\u7684\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>Dim array_name(size1, size2) As data_type\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d size1 \u548c size2 \u662f\u6570\u7ec4\u7684\u4e24\u4e2a\u7ef4\u5ea6\u7684\u5927\u5c0f\uff0cdata_type \u662f\u6570\u7ec4\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u5b9a\u4e49\u4e00\u4e2a\u5b58\u50a8\u6574\u6570\u7684 2&#215;2 \u7684\u4e8c\u7ef4\u6570\u7ec4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim matrix(1, 1) As Integer\n<\/code><\/pre>\n\n\n\n<p>\u8981\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u9700\u8981\u4f7f\u7528\u4e24\u4e2a\u7d22\u5f15\u3002\u4f8b\u5982\uff0c\u8981\u5c06\u503c 10 \u5206\u914d\u7ed9\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>matrix(0, 0) = 10\n<\/code><\/pre>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0c\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528 ReDim \u8bed\u53e5\u66f4\u6539\u6570\u7ec4\u7684\u5927\u5c0f\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>ReDim numbers(9)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528 ReDim \u8bed\u53e5\u5c06\u6570\u7ec4 numbers \u7684\u5927\u5c0f\u66f4\u6539\u4e3a 10\u3002<\/p>\n\n\n\n<p>VB.NET \u8fd8\u652f\u6301\u53ef\u53d8\u6570\u7ec4\uff0c\u8fd9\u4e9b\u6570\u7ec4\u7684\u5927\u5c0f\u53ef\u4ee5\u6839\u636e\u9700\u8981\u81ea\u52a8\u589e\u52a0\u6216\u51cf\u5c11\u3002\u8981\u521b\u5efa\u53ef\u53d8\u6570\u7ec4\uff0c\u8bf7\u4f7f\u7528 ReDim Preserve \u8bed\u53e5\uff0c\u5e76\u6307\u5b9a\u9700\u8981\u4fdd\u7559\u7684\u5143\u7d20\u7684\u6570\u91cf\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>ReDim Preserve numbers(9)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528 ReDim Preserve \u8bed\u53e5\u5c06\u6570\u7ec4 numbers \u7684\u5927\u5c0f\u66f4\u6539\u4e3a 10\uff0c\u5e76\u4fdd\u7559\u524d 5 \u4e2a\u5143\u7d20\u3002<\/p>\n\n\n\n<p>\u5728 VB.NET \u4e2d\uff0c\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u51fd\u6570\u548c\u5c5e\u6027\u6765\u5904\u7406\u6570\u7ec4\uff0c\u4f8b\u5982 Array.Sort \u51fd\u6570\u53ef\u4ee5\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0cArray.IndexOf \u51fd\u6570\u53ef\u4ee5\u67e5\u627e\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u7684\u7d22\u5f15\uff0cLength \u5c5e\u6027\u53ef\u4ee5\u8fd4\u56de\u6570\u7ec4\u7684\u5927\u5c0f\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.Net\u7684\u96c6\u5408<\/p>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u96c6\u5408\u662f\u4e00\u7ec4\u76f8\u5173\u5bf9\u8c61\u7684\u5bb9\u5668\u3002\u5b83\u4eec\u63d0\u4f9b\u4e86\u4e00\u4e9b\u7279\u6b8a\u7684\u529f\u80fd\uff0c\u4f7f\u5f97\u5bf9\u8c61\u7684\u6dfb\u52a0\u3001\u5220\u9664\u548c\u904d\u5386\u53d8\u5f97\u66f4\u52a0\u65b9\u4fbf\u3002VB.NET\u4e2d\u63d0\u4f9b\u4e86\u51e0\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u96c6\u5408\u7c7b\uff0c\u6bcf\u79cd\u7c7b\u578b\u90fd\u6709\u81ea\u5df1\u7684\u7279\u5b9a\u7528\u9014\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>ArrayList<\/li>\n<\/ol>\n\n\n\n<p>ArrayList\u662fVB.NET\u4e2d\u6700\u57fa\u672c\u7684\u96c6\u5408\u7c7b\u4e4b\u4e00\u3002\u5b83\u53ef\u4ee5\u5b58\u50a8\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u751a\u81f3\u53ef\u4ee5\u5c06\u4e0d\u540c\u7c7b\u578b\u7684\u5bf9\u8c61\u5b58\u50a8\u5728\u540c\u4e00\u4e2aArrayList\u4e2d\u3002\u5b83\u63d0\u4f9b\u4e86\u8bb8\u591a\u65b9\u6cd5\uff0c\u5982Add\u3001Remove\u548cContains\u7b49\uff0c\u53ef\u4ee5\u7528\u4e8e\u64cd\u4f5c\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528ArrayList\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mathematicaCopy code<code>Dim list As New ArrayList()\nlist.Add(\"apple\")\nlist.Add(\"banana\")\nlist.Add(\"orange\")\nConsole.WriteLine(\"Number of elements in list: \" &amp; list.Count)\nConsole.WriteLine(\"Element at index 1: \" &amp; list(1))\nlist.Remove(\"banana\")\nConsole.WriteLine(\"Number of elements in list after removing banana: \" &amp; list.Count)\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>List<\/li>\n<\/ol>\n\n\n\n<p>List\u662fVB.NET\u4e2d\u53e6\u4e00\u79cd\u5e38\u89c1\u7684\u96c6\u5408\u7c7b\uff0c\u5b83\u662f\u4e00\u4e2a\u6cdb\u578b\u7c7b\uff0c\u53ef\u4ee5\u6307\u5b9a\u5b58\u50a8\u5728\u96c6\u5408\u4e2d\u7684\u5bf9\u8c61\u7c7b\u578b\u3002\u4e0eArrayList\u4e0d\u540c\uff0cList\u4ec5\u5141\u8bb8\u5b58\u50a8\u6307\u5b9a\u7c7b\u578b\u7684\u5bf9\u8c61\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528List\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mathematicaCopy code<code>Dim list As New List(Of String)()\nlist.Add(\"apple\")\nlist.Add(\"banana\")\nlist.Add(\"orange\")\nConsole.WriteLine(\"Number of elements in list: \" &amp; list.Count)\nConsole.WriteLine(\"Element at index 1: \" &amp; list(1))\nlist.Remove(\"banana\")\nConsole.WriteLine(\"Number of elements in list after removing banana: \" &amp; list.Count)\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>Dictionary<\/li>\n<\/ol>\n\n\n\n<p>Dictionary\u662fVB.NET\u4e2d\u7528\u4e8e\u5b58\u50a8\u952e\u503c\u5bf9\u7684\u96c6\u5408\u7c7b\u3002\u6bcf\u4e2a\u5143\u7d20\u7531\u4e00\u4e2a\u952e\u548c\u4e00\u4e2a\u503c\u7ec4\u6210\u3002\u952e\u5fc5\u987b\u662f\u552f\u4e00\u7684\uff0c\u800c\u503c\u53ef\u4ee5\u662f\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Dictionary\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mathematicaCopy code<code>Dim dict As New Dictionary(Of String, Integer)()\ndict.Add(\"apple\", 1)\ndict.Add(\"banana\", 2)\ndict.Add(\"orange\", 3)\nConsole.WriteLine(\"Number of elements in dictionary: \" &amp; dict.Count)\nConsole.WriteLine(\"Value for key 'banana': \" &amp; dict(\"banana\"))\ndict.Remove(\"banana\")\nConsole.WriteLine(\"Number of elements in dictionary after removing 'banana': \" &amp; dict.Count)\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>HashSet<\/li>\n<\/ol>\n\n\n\n<p>HashSet\u662fVB.NET\u4e2d\u7684\u53e6\u4e00\u79cd\u96c6\u5408\u7c7b\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u552f\u4e00\u7684\u5143\u7d20\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e9b\u7528\u4e8e\u96c6\u5408\u64cd\u4f5c\u7684\u65b9\u6cd5\uff0c\u5982Union\u3001Intersect\u548cExcept\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528HashSet\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim set1 As New HashSet(Of String)()\nset1.Add(\"apple\")\nset1.Add(\"banana\")\nset1.Add(\"orange\")\nDim set2 As New HashSet(Of String)()\nset2.Add(\"banana\")\nset2.Add(\"grape\")\nset2.Add(\"peach\")\nDim unionSet = set1.Union(set2)\nConsole.WriteLine(\"Union set: \" &amp; String.Join(\", \", unionSet))\nDim intersectSet = set1.Intersect(set2)\nConsole.WriteLine(\"Intersection set: \" &amp; String.Join(\", \", intersectSet))\nDim exceptSet = set1.Except(set2)\nConsole.WriteLine(\"Except set: \" &amp; String.Join(\", \", exceptSet))\n<\/code><\/pre>\n\n\n\n<p>\u603b\u4e4b\uff0cVB.NET\u7684\u96c6\u5408\u63d0\u4f9b\u4e86\u4e00\u4e9b<\/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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.Net\u7684\u7c7b\u548c\u5bf9\u8c61<\/p>\n\n\n\n<p>VB.NET\u662f\u4e00\u79cd\u9762\u5411\u5bf9\u8c61\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u56e0\u6b64\u7c7b\u548c\u5bf9\u8c61\u5728VB.NET\u4e2d\u975e\u5e38\u91cd\u8981\u3002\u7c7b\u662f\u4e00\u79cd\u7528\u6237\u5b9a\u4e49\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5b83\u5305\u542b\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u5bf9\u8c61\u662f\u7c7b\u7684\u5b9e\u4f8b\uff0c\u53ef\u4ee5\u8bbf\u95ee\u8be5\u7c7b\u4e2d\u5b9a\u4e49\u7684\u6240\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u521b\u5efa\u7c7b\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Public Class MyClass\n    ' Class members go here.\nEnd Class\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cPublic\u5173\u952e\u5b57\u8868\u793a\u8be5\u7c7b\u53ef\u4ee5\u4ece\u4efb\u4f55\u5730\u65b9\u8bbf\u95ee\uff0cMyClass\u662f\u7c7b\u7684\u540d\u79f0\u3002\u7c7b\u6210\u5458\u5305\u62ec\u5b57\u6bb5\uff0c\u5c5e\u6027\uff0c\u65b9\u6cd5\uff0c\u6784\u9020\u51fd\u6570\u7b49\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u6f14\u793a\u5982\u4f55\u5b9a\u4e49\u7c7b\u548c\u5bf9\u8c61\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Public Class Car\n    Public Make As String\n    Public Model As String\n    Public Year As Integer\n\n    Public Sub New(ByVal make As String, ByVal model As String, ByVal year As Integer)\n        Me.Make = make\n        Me.Model = model\n        Me.Year = year\n    End Sub\n\n    Public Sub Drive()\n        Console.WriteLine(\"Driving the {0} {1} {2}\", Year, Make, Model)\n    End Sub\nEnd Class\n\n' Creating an object of the Car class\nDim myCar As Car = New Car(\"Toyota\", \"Corolla\", 2021)\n\n' Accessing the properties of the Car object\nConsole.WriteLine(\"My car is a {0} {1} {2}\", myCar.Year, myCar.Make, myCar.Model)\n\n' Calling the Drive method of the Car object\nmyCar.Drive()\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3aCar\u7684\u7c7b\u3002\u5b83\u5177\u6709Make\uff0cModel\u548cYear\u5c5e\u6027\uff0c\u4ee5\u53ca\u4e00\u4e2a\u6784\u9020\u51fd\u6570\u548cDrive\u65b9\u6cd5\u3002\u7136\u540e\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3amyCar\u7684Car\u5bf9\u8c61\uff0c\u5e76\u4f7f\u7528\u6784\u9020\u51fd\u6570\u4e3a\u5176\u5c5e\u6027\u8d4b\u503c\u3002\u6700\u540e\uff0c\u6211\u4eec\u8bbf\u95ee\u4e86myCar\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u6211\u4eec\u4f7f\u7528New\u5173\u952e\u5b57\u6765\u521b\u5efaCar\u5bf9\u8c61\u3002\u8fd9\u662f\u56e0\u4e3a\u5728VB.NET\u4e2d\uff0c\u7c7b\u5fc5\u987b\u901a\u8fc7\u5b9e\u4f8b\u5316\u6765\u4f7f\u7528\u3002\u4f7f\u7528New\u5173\u952e\u5b57\u53ef\u4ee5\u8c03\u7528\u7c7b\u7684\u6784\u9020\u51fd\u6570\u6765\u521d\u59cb\u5316\u5bf9\u8c61\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.Net\u7684\u7ee7\u627f<\/p>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u7ee7\u627f\u662f\u4e00\u79cd\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5b83\u5141\u8bb8\u60a8\u521b\u5efa\u4e00\u4e2a\u65b0\u7c7b\uff0c\u8be5\u7c7b\u53ef\u4ee5\u4ece\u4e00\u4e2a\u6216\u591a\u4e2a\u73b0\u6709\u7c7b\u7ee7\u627f\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u7ee7\u627f\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u91cd\u7528\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u4f7f\u7528\u5173\u952e\u5b57Inherits\u6765\u6307\u793a\u4e00\u4e2a\u7c7b\u6d3e\u751f\u81ea\u53e6\u4e00\u4e2a\u7c7b\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u6f14\u793a\u5982\u4f55\u5b9a\u4e49\u4e00\u4e2a\u6d3e\u751f\u7c7b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Public Class Animal\n    Public Property Name As String\n\n    Public Sub New(ByVal name As String)\n        Me.Name = name\n    End Sub\n\n    Public Sub Eat()\n        Console.WriteLine(\"The animal is eating.\")\n    End Sub\nEnd Class\n\nPublic Class Dog\n    Inherits Animal\n\n    Public Sub New(ByVal name As String)\n        MyBase.New(name)\n    End Sub\n\n    Public Sub Bark()\n        Console.WriteLine(\"Woof!\")\n    End Sub\nEnd Class\n\n' Creating an object of the Dog class\nDim myDog As Dog = New Dog(\"Fido\")\n\n' Accessing the properties of the Dog object\nConsole.WriteLine(\"My dog's name is {0}\", myDog.Name)\n\n' Calling the Eat and Bark methods of the Dog object\nmyDog.Eat()\nmyDog.Bark()\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e24\u4e2a\u7c7b\uff1aAnimal\u548cDog\u3002Dog\u7c7b\u6d3e\u751f\u81eaAnimal\u7c7b\u3002Animal\u7c7b\u5177\u6709\u4e00\u4e2a\u540d\u4e3aName\u7684\u5c5e\u6027\u548c\u4e00\u4e2aEat\u65b9\u6cd5\u3002Dog\u7c7b\u5177\u6709\u4e00\u4e2a\u540d\u4e3aBark\u7684\u65b9\u6cd5\u3002\u6211\u4eec\u4f7f\u7528\u5173\u952e\u5b57Inherits\u6765\u6307\u793aDog\u7c7b\u7ee7\u627f\u81eaAnimal\u7c7b\u3002\u5728Dog\u7c7b\u7684\u6784\u9020\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528MyBase\u5173\u952e\u5b57\u6765\u8c03\u7528Animal\u7c7b\u7684\u6784\u9020\u51fd\u6570\uff0c\u5e76\u4f20\u9012\u7ed9\u5b83Name\u53c2\u6570\u7684\u503c\u3002<\/p>\n\n\n\n<p>\u5f53\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u540d\u4e3amyDog\u7684Dog\u5bf9\u8c61\u65f6\uff0c\u5b83\u5c06\u81ea\u52a8\u5177\u6709Animal\u7c7b\u4e2d\u5b9a\u4e49\u7684Name\u5c5e\u6027\u548cEat\u65b9\u6cd5\u3002\u6211\u4eec\u8fd8\u53ef\u4ee5\u8c03\u7528Dog\u7c7b\u4e2d\u5b9a\u4e49\u7684Bark\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u7ee7\u627f\u53ef\u4ee5\u591a\u5c42\u5d4c\u5957\uff0c\u4e5f\u53ef\u4ee5\u4ece\u591a\u4e2a\u7c7b\u4e2d\u7ee7\u627f\u3002\u540c\u65f6\uff0c\u6d3e\u751f\u7c7b\u8fd8\u53ef\u4ee5\u8986\u76d6\u57fa\u7c7b\u4e2d\u7684\u65b9\u6cd5\uff0c\u4ee5\u63d0\u4f9b\u65b0\u7684\u6216\u4e0d\u540c\u7684\u5b9e\u73b0\u3002\u5728VB.NET\u4e2d\uff0c\u4f7f\u7528\u5173\u952e\u5b57Overrides\u6765\u8986\u76d6\u57fa\u7c7b\u4e2d\u7684\u65b9\u6cd5\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.Net\u7684\u591a\u6001<\/p>\n\n\n\n<p>\u591a\u6001\u662f\u4e00\u79cd\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u6982\u5ff5\uff0c\u5b83\u5141\u8bb8\u4f7f\u7528\u4e0d\u540c\u7684\u5bf9\u8c61\u6267\u884c\u76f8\u540c\u7684\u64cd\u4f5c\uff0c\u5e76\u6839\u636e\u5bf9\u8c61\u7684\u7c7b\u578b\u6765\u786e\u5b9a\u8981\u8c03\u7528\u7684\u65b9\u6cd5\u3002\u5728VB.NET\u4e2d\uff0c\u591a\u6001\u53ef\u4ee5\u901a\u8fc7\u7ee7\u627f\u548c\u63a5\u53e3\u5b9e\u73b0\u6765\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>\u5728\u7ee7\u627f\u65b9\u9762\uff0c\u591a\u6001\u5141\u8bb8\u6d3e\u751f\u7c7b\u4f7f\u7528\u57fa\u7c7b\u7684\u65b9\u6cd5\uff0c\u4f46\u662f\u5982\u679c\u6d3e\u751f\u7c7b\u8986\u76d6\u4e86\u57fa\u7c7b\u4e2d\u7684\u65b9\u6cd5\uff0c\u5219\u4f1a\u6267\u884c\u6d3e\u751f\u7c7b\u4e2d\u7684\u65b9\u6cd5\u3002\u8fd9\u610f\u5473\u7740\u5982\u679c\u6211\u4eec\u6709\u4e00\u4e2a\u6307\u5411\u6d3e\u751f\u7c7b\u5bf9\u8c61\u7684\u57fa\u7c7b\u5f15\u7528\uff0c\u6211\u4eec\u53ef\u4ee5\u8c03\u7528\u57fa\u7c7b\u4e2d\u7684\u65b9\u6cd5\uff0c\u5e76\u4e14\u5177\u4f53\u5b9e\u73b0\u5c06\u6839\u636e\u5bf9\u8c61\u7684\u5b9e\u9645\u7c7b\u578b\u800c\u53d8\u5316\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u6f14\u793a\u5982\u4f55\u4f7f\u7528\u7ee7\u627f\u6765\u5b9e\u73b0\u591a\u6001\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Public Class Animal\n    Public Overridable Sub MakeSound()\n        Console.WriteLine(\"The animal makes a sound.\")\n    End Sub\nEnd Class\n\nPublic Class Dog\n    Inherits Animal\n\n    Public Overrides Sub MakeSound()\n        Console.WriteLine(\"The dog barks.\")\n    End Sub\nEnd Class\n\nPublic Class Cat\n    Inherits Animal\n\n    Public Overrides Sub MakeSound()\n        Console.WriteLine(\"The cat meows.\")\n    End Sub\nEnd Class\n\nDim animals As Animal() = {New Dog(), New Cat()}\n\nFor Each animal As Animal In animals\n    animal.MakeSound()\nNext\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2aAnimal\u7c7b\u548c\u4e24\u4e2a\u6d3e\u751f\u7c7b\uff1aDog\u548cCat\u3002\u6bcf\u4e2a\u7c7b\u90fd\u6709\u4e00\u4e2aMakeSound\u65b9\u6cd5\uff0c\u4f46\u662f\u5b83\u4eec\u7684\u5b9e\u73b0\u4e0d\u540c\u3002\u6211\u4eec\u4f7f\u7528\u7ee7\u627f\u6765\u5b9e\u73b0\u591a\u6001\uff0c\u5c06Dog\u548cCat\u5bf9\u8c61\u6dfb\u52a0\u5230Animal\u7c7b\u578b\u7684\u6570\u7ec4\u4e2d\u3002\u7136\u540e\u6211\u4eec\u4f7f\u7528ForEach\u5faa\u73af\u6765\u8fed\u4ee3\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5bf9\u8c61\uff0c\u5e76\u8c03\u7528\u5176MakeSound\u65b9\u6cd5\u3002\u7531\u4e8e\u6bcf\u4e2a\u5bf9\u8c61\u7684\u5b9e\u9645\u7c7b\u578b\u4e0d\u540c\uff0c\u56e0\u6b64\u5b83\u4eec\u7684MakeSound\u65b9\u6cd5\u7684\u5b9e\u73b0\u4e5f\u4e0d\u540c\uff0c\u4ece\u800c\u5b9e\u73b0\u4e86\u591a\u6001\u3002<\/p>\n\n\n\n<p>\u5728\u63a5\u53e3\u5b9e\u73b0\u65b9\u9762\uff0c\u591a\u6001\u5141\u8bb8\u591a\u4e2a\u7c7b\u5b9e\u73b0\u76f8\u540c\u7684\u63a5\u53e3\uff0c\u5e76\u4e14\u901a\u8fc7\u8c03\u7528\u63a5\u53e3\u65b9\u6cd5\u6765\u6267\u884c\u76f8\u540c\u7684\u64cd\u4f5c\u3002\u8fd9\u79cd\u591a\u6001\u6027\u662f\u901a\u8fc7\u63a5\u53e3\u7684\u5b9e\u73b0\u800c\u4e0d\u662f\u7ee7\u627f\u6765\u5b9e\u73b0\u7684\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u6f14\u793a\u5982\u4f55\u4f7f\u7528\u63a5\u53e3\u5b9e\u73b0\u591a\u6001\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Public Interface IAnimal\n    Sub MakeSound()\nEnd Interface\n\nPublic Class Dog\n    Implements IAnimal\n\n    Public Sub MakeSound() Implements IAnimal.MakeSound\n        Console.WriteLine(\"The dog barks.\")\n    End Sub\nEnd Class\n\nPublic Class Cat\n    Implements IAnimal\n\n    Public Sub MakeSound() Implements IAnimal.MakeSound\n        Console.WriteLine(\"The cat meows.\")\n    End Sub\nEnd Class\n\nDim animals As IAnimal() = {New Dog(), New Cat()}\n\nFor Each animal As IAnimal In animals\n    animal.MakeSound()\nNext\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2aIAnimal\u63a5\u53e3\u548c\u4e24\u4e2a\u5b9e\u73b0\u8be5\u63a5\u53e3\u7684\u7c7b\uff1aDog\u548cCat\u3002\u6bcf\u4e2a\u7c7b\u90fd\u5b9e\u73b0\u4e86IAnimal\u63a5\u53e3\u7684MakeSound\u65b9\u6cd5\u3002\u6211\u4eec\u5c06Dog\u548cCat\u5bf9\u8c61\u6dfb\u52a0\u5230IAnimal\u7c7b\u578b\u7684\u6570\u7ec4\u4e2d\uff0c\u5e76\u4f7f\u7528ForEach\u5faa\u73af\u8fed\u4ee3\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5bf9\u8c61\uff0c\u5e76\u8c03\u7528\u5176MakeSound\u65b9\u6cd5\u3002\u7531\u4e8e\u6bcf\u4e2a\u5bf9\u8c61\u5b9e\u73b0\u4e86IAnimal\u63a5\u53e3\uff0c\u56e0<\/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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u6587\u4ef6\u64cd\u4f5c<\/p>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u6587\u4ef6\u64cd\u4f5c\u662f\u975e\u5e38\u5e38\u89c1\u7684\u4efb\u52a1\u3002\u5b83\u6d89\u53ca\u5230\u521b\u5efa\u3001\u6253\u5f00\u3001\u8bfb\u53d6\u3001\u5199\u5165\u3001\u5173\u95ed\u6587\u4ef6\u7b49\u64cd\u4f5c\u3002\u5728VB.NET\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528System.IO\u547d\u540d\u7a7a\u95f4\u4e0b\u7684\u7c7b\u6765\u5b8c\u6210\u8fd9\u4e9b\u4efb\u52a1\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u6587\u4ef6\u64cd\u4f5c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u521b\u5efa\u6587\u4ef6<\/li>\n<\/ol>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528File.Create\u65b9\u6cd5\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim fileName As String = \"example.txt\"\nFile.Create(fileName)\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u6253\u5f00\u6587\u4ef6<\/li>\n<\/ol>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528FileStream\u7c7b\u6765\u6253\u5f00\u6587\u4ef6\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim fileName As String = \"example.txt\"\nDim stream As FileStream = File.Open(fileName, FileMode.OpenOrCreate)\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cFileMode.OpenOrCreate\u53c2\u6570\u6307\u5b9a\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5219\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\uff0c\u5426\u5219\u6253\u5f00\u73b0\u6709\u6587\u4ef6\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u8bfb\u53d6\u6587\u4ef6<\/li>\n<\/ol>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528StreamReader\u7c7b\u6765\u8bfb\u53d6\u6587\u4ef6\u7684\u5185\u5bb9\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim fileName As String = \"example.txt\"\nDim reader As New StreamReader(fileName)\nDim contents As String = reader.ReadToEnd()\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u5199\u5165\u6587\u4ef6<\/li>\n<\/ol>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528StreamWriter\u7c7b\u6765\u5199\u5165\u6587\u4ef6\u7684\u5185\u5bb9\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim fileName As String = \"example.txt\"\nDim writer As New StreamWriter(fileName)\nwriter.WriteLine(\"Hello, world!\")\nwriter.Close()\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u5173\u95ed\u6587\u4ef6<\/li>\n<\/ol>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528FileStream\u7c7b\u7684Close\u65b9\u6cd5\u6765\u5173\u95ed\u6587\u4ef6\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mathematicaCopy code<code>stream.Close()\n<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0a\u662fVB.NET\u4e2d\u6587\u4ef6\u64cd\u4f5c\u7684\u4e00\u4e9b\u57fa\u672c\u64cd\u4f5c\uff0c\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u5b8c\u6210\u5e38\u89c1\u7684\u6587\u4ef6\u64cd\u4f5c\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u6d41\u64cd\u4f5c<\/p>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u6d41\uff08Stream\uff09\u662f\u5904\u7406\u8f93\u5165\u8f93\u51fa\u6570\u636e\u7684\u4e00\u79cd\u65b9\u5f0f\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u62bd\u8c61\u7684\u6570\u636e\u8bbf\u95ee\u6a21\u578b\uff0c\u53ef\u4ee5\u7528\u6765\u8bfb\u53d6\u548c\u5199\u5165\u6570\u636e\u3002Stream\u7c7b\u662f\u6240\u6709\u6d41\u7684\u57fa\u7c7b\uff0c\u5b83\u5b9a\u4e49\u4e86\u4e00\u4e9b\u57fa\u672c\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\uff0c\u6d3e\u751f\u7c7b\u5219\u5b9e\u73b0\u4e86\u5177\u4f53\u7684\u8bfb\u53d6\u548c\u5199\u5165\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u6d41\u64cd\u4f5c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5199\u5165\u6d41<\/li>\n<\/ol>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528StreamWriter\u7c7b\u6765\u5199\u5165\u6d41\u7684\u5185\u5bb9\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim stream As New MemoryStream()\nDim writer As New StreamWriter(stream)\nwriter.WriteLine(\"Hello, world!\")\nwriter.Flush()\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8bfb\u53d6\u6d41<\/li>\n<\/ol>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528StreamReader\u7c7b\u6765\u8bfb\u53d6\u6d41\u7684\u5185\u5bb9\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim stream As New MemoryStream()\nDim writer As New StreamWriter(stream)\nwriter.WriteLine(\"Hello, world!\")\nwriter.Flush()\n\nstream.Position = 0\nDim reader As New StreamReader(stream)\nDim contents As String = reader.ReadToEnd()\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cstream.Position\u5c5e\u6027\u7528\u6765\u5c06\u6d41\u7684\u4f4d\u7f6e\u8bbe\u7f6e\u4e3a\u5f00\u59cb\u8bfb\u53d6\u7684\u4f4d\u7f6e\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u590d\u5236\u6d41<\/li>\n<\/ol>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528Stream\u7c7b\u7684CopyTo\u65b9\u6cd5\u6765\u590d\u5236\u6d41\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim stream1 As New MemoryStream()\nDim writer As New StreamWriter(stream1)\nwriter.WriteLine(\"Hello, world!\")\nwriter.Flush()\n\nDim stream2 As New MemoryStream()\nstream1.CopyTo(stream2)\n\nstream1.Position = 0\nstream2.Position = 0\n\nDim reader As New StreamReader(stream2)\nDim contents As String = reader.ReadToEnd()\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cstream1.CopyTo(stream2)\u65b9\u6cd5\u5c06stream1\u6d41\u4e2d\u7684\u5185\u5bb9\u590d\u5236\u5230stream2\u6d41\u4e2d\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0a\u662fVB.NET\u4e2d\u6d41\u64cd\u4f5c\u7684\u4e00\u4e9b\u57fa\u672c\u64cd\u4f5c\uff0c\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u5b8c\u6210\u5e38\u89c1\u7684\u6d41\u64cd\u4f5c\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u5f02\u5e38\u5904\u7406<\/p>\n\n\n\n<p>\u5728VB.NET\u4e2d\uff0c\u5f02\u5e38\u5904\u7406\u662f\u4e00\u79cd\u7528\u4e8e\u5904\u7406\u7a0b\u5e8f\u4e2d\u53ef\u80fd\u51fa\u73b0\u7684\u5f02\u5e38\u60c5\u51b5\u7684\u673a\u5236\u3002\u5f02\u5e38\u662f\u6307\u7a0b\u5e8f\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u9519\u8bef\u6216\u610f\u5916\u60c5\u51b5\uff0c\u4f8b\u5982\u672a\u5904\u7406\u7684\u8f93\u5165\u6216\u65e0\u6548\u7684\u6570\u636e\u3002\u5982\u679c\u4e0d\u8fdb\u884c\u5f02\u5e38\u5904\u7406\uff0c\u7a0b\u5e8f\u53ef\u80fd\u4f1a\u5d29\u6e83\u6216\u4ea7\u751f\u4e0d\u53ef\u9884\u77e5\u7684\u7ed3\u679c\uff0c\u56e0\u6b64\u5f02\u5e38\u5904\u7406\u662f\u4fdd\u8bc1\u7a0b\u5e8f\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u7684\u5173\u952e\u3002<\/p>\n\n\n\n<p>VB.NET\u4e2d\u4f7f\u7528Try-Catch\u8bed\u53e5\u6765\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\u3002Try\u5757\u4e2d\u5305\u542b\u53ef\u80fd\u629b\u51fa\u5f02\u5e38\u7684\u4ee3\u7801\uff0c\u800cCatch\u5757\u5219\u7528\u6765\u5904\u7406\u6355\u83b7\u5230\u7684\u5f02\u5e38\u3002\u5982\u679cTry\u5757\u4e2d\u7684\u4ee3\u7801\u629b\u51fa\u4e86\u5f02\u5e38\uff0c\u7a0b\u5e8f\u4f1a\u7acb\u5373\u8df3\u8f6c\u5230Catch\u5757\uff0c\u6267\u884c\u5176\u4e2d\u7684\u4ee3\u7801\uff0c\u7136\u540e\u7ee7\u7eed\u6267\u884c\u540e\u9762\u7684\u4ee3\u7801\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u5f02\u5e38\u5904\u7406\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Try\n    ' \u53ef\u80fd\u629b\u51fa\u5f02\u5e38\u7684\u4ee3\u7801\n    Dim a As Integer = 10 \/ 0\nCatch ex As Exception\n    ' \u5904\u7406\u5f02\u5e38\n    Console.WriteLine(\"\u53d1\u751f\u5f02\u5e38\uff1a{0}\", ex.Message)\nFinally\n    ' \u6700\u7ec8\u6267\u884c\u7684\u4ee3\u7801\n    Console.WriteLine(\"\u7a0b\u5e8f\u6267\u884c\u5b8c\u6bd5\u3002\")\nEnd Try\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0cTry\u5757\u4e2d\u7684\u4ee3\u7801\u4f1a\u5c1d\u8bd5\u8ba1\u7b9710\u9664\u4ee50\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u4e00\u4e2a\u9664\u4ee5\u96f6\u7684\u5f02\u5e38\u3002\u5f53\u5f02\u5e38\u53d1\u751f\u65f6\uff0c\u7a0b\u5e8f\u4f1a\u8df3\u8f6c\u5230Catch\u5757\u4e2d\u6267\u884c\u5176\u4e2d\u7684\u4ee3\u7801\uff0c\u663e\u793a\u5f02\u5e38\u7684\u6d88\u606f\u3002\u6700\u7ec8\uff0c\u7a0b\u5e8f\u4f1a\u6267\u884cFinally\u5757\u4e2d\u7684\u4ee3\u7801\uff0c\u4e0d\u7ba1\u662f\u5426\u53d1\u751f\u5f02\u5e38\u3002<\/p>\n\n\n\n<p>\u5728Catch\u5757\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528Exception\u5bf9\u8c61\u6765\u8bbf\u95ee\u5f02\u5e38\u7684\u76f8\u5173\u4fe1\u606f\uff0c\u4f8b\u5982\u5f02\u5e38\u7c7b\u578b\u3001\u6d88\u606f\u3001\u5806\u6808\u8ddf\u8e2a\u7b49\u3002\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2aCatch\u5757\u6765\u5904\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u5f02\u5e38\uff0c\u4ece\u800c\u63d0\u4f9b\u66f4\u52a0\u8be6\u7ec6\u7684\u5f02\u5e38\u5904\u7406\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p>\u9664\u4e86Try-Catch\u8bed\u53e5\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528Throw\u8bed\u53e5\u6765\u624b\u52a8\u629b\u51fa\u5f02\u5e38\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Sub Test()\n    Dim a As Integer = 10\n    If a &gt; 5 Then\n        Throw New Exception(\"a\u7684\u503c\u4e0d\u80fd\u5927\u4e8e5\u3002\")\n    End If\nEnd Sub\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u5982\u679ca\u7684\u503c\u5927\u4e8e5\uff0c\u5219\u4f1a\u624b\u52a8\u629b\u51fa\u4e00\u4e2a\u5f02\u5e38\u3002\u8be5\u5f02\u5e38\u53ef\u4ee5\u5728\u8c03\u7528Test\u51fd\u6570\u7684\u5730\u65b9\u4f7f\u7528Try-Catch\u8bed\u53e5\u6765\u6355\u83b7\u548c\u5904\u7406\u3002<\/p>\n\n\n\n<p>\u5f02\u5e38\u5904\u7406\u662fVB.NET\u7a0b\u5e8f\u5f00\u53d1\u4e2d\u5fc5\u4e0d\u53ef\u5c11\u7684\u4e00\u90e8\u5206\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u6709\u6548\u5730\u7ba1\u7406\u7a0b\u5e8f\u4e2d\u53ef\u80fd\u51fa\u73b0\u7684\u5f02\u5e38\u60c5\u51b5\uff0c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u53ef\u9760\u6027\u548c\u7a33\u5b9a\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684LINQ\u64cd\u4f5c<\/p>\n\n\n\n<p>LINQ\uff08Language Integrated Query\uff09\u662f\u4e00\u79cd\u7528\u4e8e.NET Framework\u7684\u67e5\u8be2\u6280\u672f\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u3001\u76f4\u89c2\u7684\u65b9\u5f0f\u6765\u67e5\u8be2\u5404\u79cd\u6570\u636e\u6e90\uff0c\u5982\u6570\u7ec4\u3001\u96c6\u5408\u3001\u6570\u636e\u5e93\u7b49\u3002\u5728VB.NET\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528LINQ\u67e5\u8be2\u6765\u5904\u7406\u5404\u79cd\u6570\u636e\u96c6\u5408\uff0c\u4f7f\u5f97\u6570\u636e\u7684\u7b5b\u9009\u3001\u6392\u5e8f\u3001\u5206\u7ec4\u7b49\u64cd\u4f5c\u53d8\u5f97\u66f4\u52a0\u65b9\u4fbf\u3001\u9ad8\u6548\u3002<\/p>\n\n\n\n<p>\u5728VB.NET\u4e2d\u4f7f\u7528LINQ\u53ef\u4ee5\u5206\u4e3a\u4e24\u6b65\uff1a\u5b9a\u4e49\u6570\u636e\u6e90\u548c\u6267\u884c\u67e5\u8be2\u64cd\u4f5c\u3002\u4e0b\u9762\u5206\u522b\u4ecb\u7ecd\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9a\u4e49\u6570\u636e\u6e90<\/h3>\n\n\n\n<p>\u5728\u4f7f\u7528LINQ\u67e5\u8be2\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5b9a\u4e49\u6570\u636e\u6e90\u3002VB.NET\u652f\u6301\u591a\u79cd\u6570\u636e\u6e90\uff0c\u5982\u6570\u7ec4\u3001\u96c6\u5408\u3001XML\u6587\u4ef6\u548c\u6570\u636e\u5e93\u7b49\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u7ec4\u548c\u96c6\u5408<\/li>\n<\/ol>\n\n\n\n<p>\u5b9a\u4e49\u6570\u7ec4\u548c\u96c6\u5408\u7684\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim arr As Integer() = {1, 2, 3, 4, 5}\nDim list As List(Of String) = New List(Of String)({\"apple\", \"banana\", \"orange\"})\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>XML\u6587\u4ef6<\/li>\n<\/ol>\n\n\n\n<p>\u5b9a\u4e49XML\u6570\u636e\u6e90\u7684\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim xmlFile As XElement = XElement.Load(\"data.xml\")\nDim books As IEnumerable(Of XElement) = xmlFile.Elements(\"book\")\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u6570\u636e\u5e93<\/li>\n<\/ol>\n\n\n\n<p>\u5b9a\u4e49\u6570\u636e\u5e93\u6570\u636e\u6e90\u7684\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim connStr As String = \"Data Source=(localdb)\\MSSQLLocalDB;Initial Catalog=TestDB;Integrated Security=True\"\nDim conn As SqlConnection = New SqlConnection(connStr)\nDim cmd As SqlCommand = New SqlCommand(\"SELECT * FROM Customers\", conn)\nDim adapter As SqlDataAdapter = New SqlDataAdapter(cmd)\nDim table As DataTable = New DataTable()\nadapter.Fill(table)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u6267\u884c\u67e5\u8be2\u64cd\u4f5c<\/h3>\n\n\n\n<p>\u5b9a\u4e49\u6570\u636e\u6e90\u4e4b\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528LINQ\u67e5\u8be2\u5bf9\u6570\u636e\u6e90\u8fdb\u884c\u7b5b\u9009\u3001\u6392\u5e8f\u3001\u5206\u7ec4\u7b49\u64cd\u4f5c\u3002\u5e38\u7528\u7684LINQ\u67e5\u8be2\u64cd\u4f5c\u7b26\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Where\uff1a\u6839\u636e\u6761\u4ef6\u7b5b\u9009\u5143\u7d20<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim arr As Integer() = {1, 2, 3, 4, 5}\nDim result = arr.Where(Function(n) n &gt; 2)\n' result = {3, 4, 5}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>Select\uff1a\u5bf9\u5143\u7d20\u8fdb\u884c\u6295\u5f71\u64cd\u4f5c<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Dim arr As Integer() = {1, 2, 3, 4, 5}\nDim result = arr.Select(Function(n) n * 2)\n' result = {2, 4, 6, 8, 10}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>OrderBy\/OrderByDescending\uff1a\u5bf9\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u64cd\u4f5c<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">mathematicaCopy code<code>Dim list As List(Of String) = New List(Of String)({\"apple\", \"banana\", \"orange\"})\nDim result = list.OrderBy(Function(s) s.Length)\n' result = {\"apple\", \"orange\", \"banana\"}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>GroupBy\uff1a\u5bf9\u5143\u7d20\u8fdb\u884c\u5206\u7ec4\u64cd\u4f5c<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">mathematicaCopy code<code>Dim list As List(Of String) = New List(Of String)({\"apple\", \"banana\", \"orange\"})\nDim result = list.GroupBy(Function(s) s(0))\n' result = {{\"a\", \"apple\"}, {\"b\", \"banana\"}, {\"o\", \"orange\"}}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>Join\uff1a\u8fde\u63a5\u4e24\u4e2a\u6570\u636e\u6e90<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>Dim customers As List(Of Customer) = GetCustomers()\nDim orders As List(Of Order) = GetOrders()\nDim result = customers.Join(orders, Function(c) c.CustomerID, Function(o) o.CustomerID, Function(c, o) New With {c.CustomerName, o.OrderDate})\n<\/code><\/pre>\n\n\n\n<p>\u5728\u6267\u884cLINQ\u67e5\u8be2\u4e4b\u540e\uff0c\u53ef\u4ee5\u5c06<\/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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u7f51\u7edc\u7f16\u7a0b\uff0c\u5e76\u7ed9\u51fa\u793a\u4f8b\u4ee3\u7801<\/p>\n\n\n\n<p>VB.NET\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u7f51\u7edc\u7f16\u7a0b\u529f\u80fd\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u521b\u5efa\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u548c\u5904\u7406\u7f51\u7edc\u6570\u636e\u3002\u4e0b\u9762\u662f\u4e00\u4e9bVB.NET\u7f51\u7edc\u7f16\u7a0b\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u521b\u5efaTCP\u5ba2\u6237\u7aef<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Imports System.Net.Sockets\nImports System.Text\n\nPublic Class TcpClientExample\n    Public Shared Sub Main()\n        Try\n            ' \u8fde\u63a5\u670d\u52a1\u5668\n            Dim client As New TcpClient(\"localhost\", 80)\n\n            ' \u53d1\u9001\u6570\u636e\n            Dim message As String = \"Hello, server!\"\n            Dim data As Byte() = Encoding.ASCII.GetBytes(message)\n            Dim stream As NetworkStream = client.GetStream()\n            stream.Write(data, 0, data.Length)\n\n            ' \u63a5\u6536\u54cd\u5e94\n            data = New Byte(256) {}\n            Dim responseData As String = String.Empty\n            Dim bytes As Integer = stream.Read(data, 0, data.Length)\n            responseData = Encoding.ASCII.GetString(data, 0, bytes)\n            Console.WriteLine(\"Received: {0}\", responseData)\n\n            ' \u5173\u95ed\u8fde\u63a5\n            stream.Close()\n            client.Close()\n        Catch ex As Exception\n            Console.WriteLine(\"Exception: {0}\", ex)\n        End Try\n    End Sub\nEnd Class\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u521b\u5efaTCP\u670d\u52a1\u5668<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Imports System.Net.Sockets\nImports System.Text\n\nPublic Class TcpServerExample\n    Public Shared Sub Main()\n        Dim listener As New TcpListener(80)\n        Try\n            listener.Start()\n            Console.WriteLine(\"Waiting for connection...\")\n\n            ' \u63a5\u53d7\u5ba2\u6237\u7aef\u8fde\u63a5\n            Dim client As TcpClient = listener.AcceptTcpClient()\n            Console.WriteLine(\"Connected to client.\")\n\n            ' \u63a5\u6536\u8bf7\u6c42\n            Dim data As Byte() = New Byte(256) {}\n            Dim responseData As String = String.Empty\n            Dim stream As NetworkStream = client.GetStream()\n            Dim bytes As Integer = stream.Read(data, 0, data.Length)\n            responseData = Encoding.ASCII.GetString(data, 0, bytes)\n            Console.WriteLine(\"Received: {0}\", responseData)\n\n            ' \u54cd\u5e94\u8bf7\u6c42\n            Dim message As String = \"Hello, client!\"\n            data = Encoding.ASCII.GetBytes(message)\n            stream.Write(data, 0, data.Length)\n            Console.WriteLine(\"Sent: {0}\", message)\n\n            ' \u5173\u95ed\u8fde\u63a5\n            stream.Close()\n            client.Close()\n        Catch ex As Exception\n            Console.WriteLine(\"Exception: {0}\", ex)\n        End Try\n        listener.Stop()\n        Console.WriteLine(\"Server stopped.\")\n    End Sub\nEnd Class\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u521b\u5efaUDP\u5ba2\u6237\u7aef<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Imports System.Net\nImports System.Net.Sockets\nImports System.Text\n\nPublic Class UdpClientExample\n    Public Shared Sub Main()\n        Try\n            ' \u8fde\u63a5\u670d\u52a1\u5668\n            Dim client As New UdpClient()\n            Dim ip As IPAddress = IPAddress.Parse(\"127.0.0.1\")\n            Dim endPoint As New IPEndPoint(ip, 11000)\n\n            ' \u53d1\u9001\u6570\u636e\n            Dim message As String = \"Hello, server!\"\n            Dim data As Byte() = Encoding.ASCII.GetBytes(message)\n            client.Send(data, data.Length, endPoint)\n\n            ' \u63a5\u6536\u54cd\u5e94\n            data = client.Receive(endPoint)\n            Dim responseData As String = Encoding.ASCII.GetString(data)\n            Console.WriteLine(\"Received: {0}\", responseData)\n\n            ' \u5173\u95ed\u8fde\u63a5\n            client.Close()\n        Catch ex As Exception\n            Console.WriteLine(\"Exception: {0}\", ex)\n        End Try\n    End Sub\nEnd Class\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u521b\u5efaUDP\u670d\u52a1\u5668<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>Imports System.Net\nImports System.Net.Sockets\nImports System.Text\n\nPublic Class UdpServerExample\n    Public Shared Sub Main()\n       \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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684\u6570\u636e\u5e93\u7f16\u7a0b\uff0c\u5e76\u7ed9\u51fa\u793a\u4f8b\u4ee3\u7801<\/p>\n\n\n\n<p>VB.NET \u662f\u4e00\u79cd\u529f\u80fd\u5f3a\u5927\u7684\u8bed\u8a00\uff0c\u53ef\u7528\u4e8e\u521b\u5efa\u5404\u79cd\u7c7b\u578b\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u5305\u62ec\u6570\u636e\u5e93\u5e94\u7528\u7a0b\u5e8f\u3002VB.NET \u5177\u6709\u5185\u7f6e\u7684 ADO.NET \u7c7b\u5e93\uff0c\u53ef\u7528\u4e8e\u4e0e\u5404\u79cd\u6570\u636e\u5e93\u8fdb\u884c\u901a\u4fe1\uff0c\u4f8b\u5982 Microsoft SQL Server\u3001Oracle\u3001MySQL \u7b49\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd VB.NET \u7684\u6570\u636e\u5e93\u7f16\u7a0b\uff0c\u5305\u62ec\u8fde\u63a5\u5230\u6570\u636e\u5e93\u3001\u6267\u884c SQL \u67e5\u8be2\u3001\u66f4\u65b0\u6570\u636e\u5e93\u7b49\u64cd\u4f5c\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801\u4ee5\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8fde\u63a5\u5230\u6570\u636e\u5e93<\/h2>\n\n\n\n<p>\u8981\u5728 VB.NET \u4e2d\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff0c\u60a8\u9700\u8981\u4f7f\u7528 .NET Framework \u4e2d\u7684 System.Data \u547d\u540d\u7a7a\u95f4\u4e0b\u7684\u7c7b\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u60a8\u9700\u8981\u4f7f\u7528 SqlConnection \u548c SqlCommand \u7c7b\u3002\u4ee5\u4e0b\u662f\u8fde\u63a5\u5230\u6570\u636e\u5e93\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbCopy code<code>Imports System.Data.SqlClient\n\nDim connectionString As String = \"Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;\"\nDim connection As New SqlConnection(connectionString)\n\nTry\n    connection.Open()\n    Console.WriteLine(\"Connection Opened\")\nCatch ex As Exception\n    Console.WriteLine(\"Error: \" &amp; ex.Message)\nFinally\n    connection.Close()\n    Console.WriteLine(\"Connection Closed\")\nEnd Try\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2a\u8fde\u63a5\u5b57\u7b26\u4e32\uff0c\u5176\u4e2d\u5305\u542b\u6570\u636e\u5e93\u7684\u540d\u79f0\u3001\u7528\u6237\u540d\u548c\u5bc6\u7801\u7b49\u8be6\u7ec6\u4fe1\u606f\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 SqlConnection \u7c7b\u521b\u5efa\u4e86\u4e00\u4e2a\u8fde\u63a5\u5bf9\u8c61\uff0c\u5e76\u8c03\u7528 Open \u65b9\u6cd5\u6253\u5f00\u8fde\u63a5\u3002\u5982\u679c\u8fde\u63a5\u6210\u529f\uff0c\u5219\u4f1a\u8f93\u51fa\u201cConnection Opened\u201d\uff0c\u5426\u5219\u5c06\u8f93\u51fa\u9519\u8bef\u6d88\u606f\u3002\u6700\u540e\uff0c\u6211\u4eec\u5728 Finally \u5757\u4e2d\u5173\u95ed\u4e86\u8fde\u63a5\uff0c\u65e0\u8bba\u8fde\u63a5\u662f\u5426\u6210\u529f\uff0c\u90fd\u4f1a\u8f93\u51fa\u201cConnection Closed\u201d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6267\u884c SQL \u67e5\u8be2<\/h2>\n\n\n\n<p>\u4e00\u65e6\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 SqlCommand \u7c7b\u6267\u884c SQL \u67e5\u8be2\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u8be5\u4ee3\u7801\u4f7f\u7528 SqlCommand \u5bf9\u8c61\u4ece\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u6570\u636e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbCopy code<code>Imports System.Data.SqlClient\n\nDim connectionString As String = \"Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;\"\nDim connection As New SqlConnection(connectionString)\n\nDim query As String = \"SELECT * FROM myTable\"\nDim command As New SqlCommand(query, connection)\n\nTry\n    connection.Open()\n    Dim reader As SqlDataReader = command.ExecuteReader()\n\n    While reader.Read()\n        Console.WriteLine(reader(\"ColumnName\"))\n    End While\n\n    reader.Close()\nCatch ex As Exception\n    Console.WriteLine(\"Error: \" &amp; ex.Message)\nFinally\n    connection.Close()\n    Console.WriteLine(\"Connection Closed\")\nEnd Try\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2a SQL \u67e5\u8be2\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u4f7f\u7528 SqlCommand \u7c7b\u521b\u5efa\u4e86\u4e00\u4e2a\u547d\u4ee4\u5bf9\u8c61\uff0c\u5e76\u5c06\u67e5\u8be2\u5b57\u7b26\u4e32\u548c\u8fde\u63a5\u5bf9\u8c61\u4f20\u9012\u7ed9\u5b83\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u8c03\u7528 ExecuteReader \u65b9\u6cd5\u6267\u884c\u67e5\u8be2\uff0c\u5e76\u4f7f\u7528 SqlDataReader \u5bf9\u8c61\u4ece\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u6570\u636e\u3002\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528 While \u5faa\u73af\u904d\u5386\u6570\u636e\u884c\uff0c\u5e76\u8f93\u51fa\u6bcf\u4e2a\u884c\u7684\u6307\u5b9a\u5217\u7684\u503c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u66f4\u65b0\u6570\u636e\u5e93<\/h2>\n\n\n\n<p>\u5982\u679c\u60a8\u9700\u8981\u5411\u6570\u636e\u5e93\u4e2d\u63d2\u5165\u3001\u66f4\u65b0\u6216\u5220\u9664\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528 SqlCommand \u7c7b\u7684 ExecuteNonQuery \u65b9\u6cd5\u6267\u884c INSERT\u3001UPDATE \u6216 DELETE \u547d\u4ee4\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u8be5\u4ee3\u7801\u4f7f\u7528 SqlCommand \u5bf9\u8c61\u5411\u6570\u636e\u5e93\u4e2d\u63d2\u5165\u6570\u636e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbCopy code<code>Imports System.Data.SqlClient\n\nDim connectionString As String = \"Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;\"\nDim connection As New SqlConnection(connectionString)\n\nDim query As String = \"INSERT INTO myTable (ColumnName1, ColumnName2) VALUES (@value\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u4ecb\u7ecdVB.NET\u7684APS.Net\u7f51\u9875\u7f16\u7a0b\uff0c\u5e76\u7ed9\u51fa\u793a\u4f8b\u4ee3\u7801<\/p>\n\n\n\n<p>ASP.NET \u662f\u4e00\u79cd\u57fa\u4e8e\u5fae\u8f6f .NET \u6846\u67b6\u7684 Web \u5f00\u53d1\u5e73\u53f0\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7684\u7ec4\u4ef6\u548c\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u6784\u5efa\u52a8\u6001\u7684\u7f51\u7ad9\u3001Web \u5e94\u7528\u7a0b\u5e8f\u548c Web \u670d\u52a1\u3002\u5728 VB.NET \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 ASP.NET \u6784\u5efa Web \u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<p>ASP.NET \u4e2d\u7684\u7f51\u9875\u79f0\u4e3a Web \u7a97\u4f53\uff08Web Form\uff09\uff0c\u5b83\u4eec\u662f\u901a\u8fc7 HTML \u548c\u670d\u52a1\u5668\u7aef\u4ee3\u7801\u6765\u751f\u6210\u52a8\u6001\u7684 Web \u9875\u9762\u3002Web \u7a97\u4f53\u63d0\u4f9b\u4e86\u4e00\u79cd\u7c7b\u4f3c\u4e8e Windows \u7a97\u4f53\u5e94\u7528\u7a0b\u5e8f\u7684\u7f16\u7a0b\u6a21\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528\u63a7\u4ef6\u548c\u4e8b\u4ef6\u6765\u5b9e\u73b0\u7528\u6237\u754c\u9762\u548c\u4e1a\u52a1\u903b\u8f91\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684 ASP.NET Web \u7a97\u4f53\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vb.netCopy code<code>&lt;%@ Page Language=\"vb\" AutoEventWireup=\"false\" CodeBehind=\"Default.aspx.vb\" Inherits=\"MyWebApp.Default\" %&gt;\n\n&lt;!DOCTYPE html&gt;\n\n&lt;html xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"&gt;\n&lt;head runat=\"server\"&gt;\n    &lt;title&gt;My Web App&lt;\/title&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n    &lt;form id=\"form1\" runat=\"server\"&gt;\n        &lt;div&gt;\n            &lt;h1&gt;Welcome to my web app!&lt;\/h1&gt;\n            &lt;asp:Label ID=\"lblMessage\" runat=\"server\" Text=\"\"&gt;&lt;\/asp:Label&gt;\n            &lt;br \/&gt;\n            &lt;asp:Button ID=\"btnSubmit\" runat=\"server\" Text=\"Submit\" OnClick=\"btnSubmit_Click\" \/&gt;\n        &lt;\/div&gt;\n    &lt;\/form&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>&lt;%@ Page %&gt;<\/code> \u6307\u4ee4\u5b9a\u4e49\u4e86\u9875\u9762\u7684\u5c5e\u6027\u548c\u4ee3\u7801\u6587\u4ef6\u3002\u9875\u9762\u4e2d\u5305\u542b\u4e00\u4e2a <code>&lt;asp:Label&gt;<\/code> \u63a7\u4ef6\u548c\u4e00\u4e2a <code>&lt;asp:Button&gt;<\/code> \u63a7\u4ef6\uff0c\u5b83\u4eec\u90fd\u662f ASP.NET Web \u7a97\u4f53\u4e2d\u5e38\u7528\u7684\u63a7\u4ef6\u3002<code>btnSubmit_Click<\/code> \u662f <code>btnSubmit<\/code> \u6309\u94ae\u7684\u5355\u51fb\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\uff0c\u5728\u5355\u51fb\u6309\u94ae\u65f6\u4f1a\u6267\u884c\u76f8\u5e94\u7684\u4ee3\u7801\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u793a\u4f8b\u4ee3\u7801\u7684\u540e\u53f0\u4ee3\u7801\u6587\u4ef6 <code>Default.aspx.vb<\/code>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vb.netCopy code<code>Public Class Default\n    Inherits System.Web.UI.Page\n\n    Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSubmit.Click\n        lblMessage.Text = \"Hello, world!\"\n    End Sub\n\nEnd Class\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>Default<\/code> \u7c7b\u7ee7\u627f\u81ea <code>System.Web.UI.Page<\/code> \u7c7b\uff0c\u5b83\u662f ASP.NET Web \u7a97\u4f53\u7684\u57fa\u7c7b\u3002<code>btnSubmit_Click<\/code> \u65b9\u6cd5\u662f\u6309\u94ae\u7684\u5355\u51fb\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\uff0c\u5b83\u5c06\u6587\u672c\u6807\u7b7e\u7684\u6587\u672c\u8bbe\u7f6e\u4e3a &#8220;Hello, world!&#8221;\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=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u5728Github\u4e0a\u6709\u54ea\u4e9b\u57fa\u4e8eVB.Net\u7684\u4f18\u79c0\u7cfb\u7edf<\/p>\n\n\n\n<p>\u5728GitHub\u4e0a\uff0c\u6709\u4e00\u4e9b\u57fa\u4e8eVB.NET\u7684\u4f18\u79c0\u7cfb\u7edf\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Ozone &#8211; \u4e00\u4e2a\u7528\u4e8e\u7ba1\u7406\u50a8\u5b58\u6570\u636e\u548c\u6587\u4ef6\u7684\u7cfb\u7edf\u3002\u94fe\u63a5\uff1a<a href=\"https:\/\/github.com\/Ryozuki\/Ozone\">https:\/\/github.com\/Ryozuki\/Ozone<\/a><\/li>\n\n\n\n<li>OpenLiveWriter &#8211; \u4e00\u4e2a\u7528\u4e8e\u64b0\u5199\u535a\u5ba2\u7684\u5ba2\u6237\u7aef\u5de5\u5177\u3002\u94fe\u63a5\uff1a<a href=\"https:\/\/github.com\/OpenLiveWriter\/OpenLiveWriter\">https:\/\/github.com\/OpenLiveWriter\/OpenLiveWriter<\/a><\/li>\n\n\n\n<li>Simple-ERP &#8211; \u4e00\u4e2a\u7b80\u5355\u6613\u7528\u7684\u4f01\u4e1a\u8d44\u6e90\u8ba1\u5212\u7cfb\u7edf\u3002\u94fe\u63a5\uff1a<a href=\"https:\/\/github.com\/leandroandrade\/Simple-ERP\">https:\/\/github.com\/leandroandrade\/Simple-ERP<\/a><\/li>\n\n\n\n<li>BlueBerry &#8211; \u4e00\u4e2a\u57fa\u4e8eVB.NET\u548cSQL Server\u7684\u6821\u56ed\u4fe1\u606f\u7ba1\u7406\u7cfb\u7edf\u3002\u94fe\u63a5\uff1a<a href=\"https:\/\/github.com\/0x1000000\/BlueBerry\">https:\/\/github.com\/0x1000000\/BlueBerry<\/a><\/li>\n\n\n\n<li>SBuilderX &#8211; 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class=\"wp-block-list\">\n<li>VBForums &#8211; \u4e00\u4e2aVB.NET\u793e\u533a\uff0c\u63d0\u4f9b\u4e86\u8bb8\u591aVB.NET\u6559\u7a0b\u548c\u8d44\u6e90\u3002\u94fe\u63a5\uff1a<a href=\"https:\/\/www.vbforums.com\/forum.php\">https:\/\/www.vbforums.com\/forum.php<\/a><\/li>\n\n\n\n<li>VB.NET-Tutorials &#8211; \u4e00\u4e2a\u63d0\u4f9bVB.NET\u6559\u7a0b\u7684\u4ed3\u5e93\uff0c\u6db5\u76d6\u4e86\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u7684\u5185\u5bb9\u3002\u94fe\u63a5\uff1a<a href=\"https:\/\/github.com\/iamjosephvarghese\/VB.NET-Tutorials\">https:\/\/github.com\/iamjosephvarghese\/VB.NET-Tutorials<\/a><\/li>\n\n\n\n<li>LearnVBNET &#8211; \u4e00\u4e2a\u7528\u4e8e\u5b66\u4e60VB.NET\u7684\u9879\u76ee\uff0c\u5305\u62ec\u6559\u7a0b\u3001\u6f14\u793a\u548c\u7ec3\u4e60\u3002\u94fe\u63a5\uff1a<a href=\"https:\/\/github.com\/adityasrivastava301199\/LearnVBNET\">https:\/\/github.com\/adityasrivastava301199\/LearnVBNET<\/a><\/li>\n\n\n\n<li>VB.NET Samples &#8211; \u4e00\u4e2a\u5305\u542bVB.NET\u793a\u4f8b\u7684\u4ed3\u5e93\uff0c\u6db5\u76d6\u4e86Windows\u684c\u9762\u5e94\u7528\u3001ASP.NET Web\u5e94\u7528\u548cWPF\u5e94\u7528\u7b49\u65b9\u9762\u3002\u94fe\u63a5\uff1a<a href=\"https:\/\/github.com\/dotnet\/samples\/tree\/main\/windowsdesktop\/VB\">https:\/\/github.com\/dotnet\/samples\/tree\/main\/windowsdesktop\/VB<\/a><\/li>\n\n\n\n<li>VB.NET Documentation &#8211; \u5b98\u65b9VB.NET\u6587\u6863\uff0c\u5305\u542b\u8bed\u8a00\u89c4\u8303\u3001\u7c7b\u5e93\u53c2\u8003\u548cAPI\u6587\u6863\u7b49\u3002\u94fe\u63a5\uff1a<a href=\"https:\/\/docs.microsoft.com\/en-us\/dotnet\/visual-basic\/\">https:\/\/docs.microsoft.com\/en-us\/dotnet\/visual-basic\/<\/a><\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u4e9b\u6559\u7a0b\u548c\u793e\u533a\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5b66\u4e60\u8d44\u6e90\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u597d\u5730\u5b66\u4e60\u548c\u638c\u63e1VB.NET\u7f16\u7a0b\u6280\u80fd\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-853","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\/853","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=853"}],"version-history":[{"count":1,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/853\/revisions"}],"predecessor-version":[{"id":854,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/853\/revisions\/854"}],"wp:attachment":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=853"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}