{"id":2603,"date":"2023-05-18T16:18:47","date_gmt":"2023-05-18T07:18:47","guid":{"rendered":"https:\/\/edu.ujhb.org\/?p=2603"},"modified":"2023-05-18T16:18:47","modified_gmt":"2023-05-18T07:18:47","slug":"redux%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=2603","title":{"rendered":"Redux\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\u4eceRedux\u6559\u7a0b\u5f00\u59cb\uff0c\u4f60\u5148\u4e3a\u6211\u5217\u51fa\u8981\u8bb2\u89e3\u7684\u5185\u5bb9\u4e00\u89c8\u3002ChatGPT<\/p>\n\n\n\n<p>\u597d\u7684\uff0c\u4e0b\u9762\u662f\u4e00\u4e2a\u53ef\u80fd\u7684Redux\u6559\u7a0b\u7684\u5927\u7eb2\u3002\u8fd9\u4e2a\u6559\u7a0b\u65e8\u5728\u4ece\u57fa\u7840\u5f00\u59cb\uff0c\u9010\u6b65\u4ecb\u7ecdRedux\u548c\u5176\u5728\u73b0\u4ee3Web\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\u3002\u8bf7\u6ce8\u610f\uff0c\u8fd9\u4e2a\u5927\u7eb2\u53ef\u4ee5\u6839\u636e\u4f60\u7684\u5177\u4f53\u9700\u6c42\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n\n\n\n<p>\u89c6\u9891\u6559\u7a0b\u5927\u7eb2\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4ecb\u7ecdRedux<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4ec0\u4e48\u662fRedux<\/li>\n\n\n\n<li>Redux\u7684\u5de5\u4f5c\u539f\u7406<\/li>\n\n\n\n<li>\u4e3a\u4ec0\u4e48\u9700\u8981Redux<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Redux\u57fa\u7840<\/strong>\n<ul class=\"wp-block-list\">\n<li>Action<\/li>\n\n\n\n<li>Reducer<\/li>\n\n\n\n<li>Store<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5728Redux\u4e2d\u4f7f\u7528Action<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u521b\u5efaAction<\/li>\n\n\n\n<li>\u53d1\u9001Action<\/li>\n\n\n\n<li>\u5904\u7406Action<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6df1\u5165\u7406\u89e3Reducer<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u521b\u5efaReducer<\/li>\n\n\n\n<li>Reducer\u5982\u4f55\u5904\u7406Action<\/li>\n\n\n\n<li>\u5408\u5e76Reducer<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Redux Store<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u521b\u5efaStore<\/li>\n\n\n\n<li>\u8ba2\u9605Store<\/li>\n\n\n\n<li>\u66f4\u65b0Store<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5728React\u4e2d\u4f7f\u7528Redux<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528<code>react-redux<\/code>\u5e93<\/li>\n\n\n\n<li>Provider\u7ec4\u4ef6<\/li>\n\n\n\n<li>connect\u51fd\u6570<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Redux\u4e2d\u95f4\u4ef6<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4ec0\u4e48\u662f\u4e2d\u95f4\u4ef6<\/li>\n\n\n\n<li>\u4f7f\u7528Redux Thunk\u8fdb\u884c\u5f02\u6b65\u64cd\u4f5c<\/li>\n\n\n\n<li>\u521b\u5efa\u81ea\u5b9a\u4e49\u4e2d\u95f4\u4ef6<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Redux DevTools<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5b89\u88c5\u548c\u914d\u7f6eRedux DevTools<\/li>\n\n\n\n<li>\u4f7f\u7528Redux DevTools\u8fdb\u884c\u8c03\u8bd5<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5b9e\u6218\u6f14\u7ec3\uff1a\u4f7f\u7528Redux\u6784\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u5e94\u7528<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u8bbe\u8ba1Action\u548cReducer<\/li>\n\n\n\n<li>\u521b\u5efaStore\u548cReact\u7ec4\u4ef6<\/li>\n\n\n\n<li>\u8fde\u63a5React\u548cRedux<\/li>\n\n\n\n<li>\u4f7f\u7528Redux\u8fdb\u884c\u72b6\u6001\u7ba1\u7406<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Redux\u7684\u6700\u4f73\u5b9e\u8df5<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u72b6\u6001\u89c4\u8303\u5316<\/li>\n\n\n\n<li>\u4f7f\u7528\u9009\u62e9\u5668<\/li>\n\n\n\n<li>\u5f02\u6b65\u64cd\u4f5c\u7684\u5904\u7406<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Redux Toolkit<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4ecb\u7ecdRedux Toolkit<\/li>\n\n\n\n<li>\u4f7f\u7528createSlice\u521b\u5efareducer\u548caction<\/li>\n\n\n\n<li>\u4f7f\u7528configureStore\u521b\u5efastore<\/li>\n\n\n\n<li>\u5b9e\u6218\u6f14\u7ec3\uff1a\u4f7f\u7528Redux Toolkit\u91cd\u6784\u5e94\u7528<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7ed3\u675f\u8bed<\/strong>\n<ul class=\"wp-block-list\">\n<li>Redux\u7684\u4f18\u7f3a\u70b9<\/li>\n\n\n\n<li>\u4f55\u65f6\u5e94\u8be5\u4f7f\u7528Redux<\/li>\n\n\n\n<li>Redux\u7684\u672a\u6765<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u5e0c\u671b\u8fd9\u4e2a\u5927\u7eb2\u5bf9\u4f60\u7684\u89c6\u9891\u6559\u7a0b\u6709\u6240\u5e2e\u52a9\uff01\u5982\u679c\u9700\u8981\u8fdb\u4e00\u6b65\u7684\u5e2e\u52a9\uff0c\u4f8b\u5982\u5177\u4f53\u7684\u811a\u672c\u6216\u5176\u4ed6\u7684\u5185\u5bb9\uff0c\u8bf7\u968f\u65f6\u544a\u8bc9\u6211\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4ec0\u4e48\u662fReduxChatGPT<\/p>\n\n\n\n<p>Redux\u662f\u4e00\u4e2a\u6d41\u884c\u7684JavaScript\u72b6\u6001\u7ba1\u7406\u5e93\uff0c\u4e3b\u8981\u7528\u4e8e\u5f00\u53d1\u590d\u6742\u7684\u5355\u9875\u5e94\u7528\u7a0b\u5e8f\u3002\u5b83\u5e2e\u52a9\u5f00\u53d1\u8005\u7ba1\u7406\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u72b6\u6001\uff0c\u4f7f\u5176\u884c\u4e3a\u66f4\u52a0\u53ef\u9884\u6d4b\u548c\u4e00\u81f4\u3002<\/p>\n\n\n\n<p>\u5728\u6df1\u5165\u7406\u89e3Redux\u4e4b\u524d\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u7406\u89e3\u201c\u72b6\u6001\u201d\u5728\u8fd9\u91cc\u662f\u4ec0\u4e48\u610f\u601d\u3002\u5728\u524d\u7aef\u5f00\u53d1\u4e2d\uff0c&#8221;\u72b6\u6001&#8221;\u662f\u6307\u5e94\u7528\u7a0b\u5e8f\u5728\u67d0\u4e2a\u7279\u5b9a\u65f6\u95f4\u70b9\u7684\u6240\u6709\u6570\u636e\u3002\u4f8b\u5982\uff0c\u7528\u6237\u767b\u5f55\u4fe1\u606f\uff0c\u9875\u9762\u662f\u5426\u6b63\u5728\u52a0\u8f7d\uff0c\u5df2\u7ecf\u83b7\u53d6\u7684\u6570\u636e\u7b49\u7b49\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\u4e3a\u4ec0\u4e48\u9700\u8981\u4e00\u4e2a\u5e93\u6765\u7ba1\u7406\u72b6\u6001\u5462\uff1f\u5728\u8f83\u5c0f\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u72b6\u6001\u7ba1\u7406\u53ef\u80fd\u5e76\u4e0d\u590d\u6742\u3002\u4f46\u662f\u968f\u7740\u5e94\u7528\u7a0b\u5e8f\u53d8\u5f97\u66f4\u52a0\u590d\u6742\uff0c\u72b6\u6001\u7ba1\u7406\u4e5f\u4f1a\u53d8\u5f97\u66f4\u52a0\u56f0\u96be\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u80fd\u4f1a\u53d1\u73b0\u4e0d\u540c\u7684\u7ec4\u4ef6\u9700\u8981\u8bbf\u95ee\u548c\u4fee\u6539\u76f8\u540c\u7684\u72b6\u6001\uff0c\u6216\u8005\u72b6\u6001\u66f4\u65b0\u7684\u903b\u8f91\u53d8\u5f97\u975e\u5e38\u590d\u6742\u3002\u8fd9\u65f6\u5019\uff0c\u5c31\u9700\u8981\u4e00\u4e2a\u7edf\u4e00\u7684\u3001\u53ef\u9884\u6d4b\u7684\u65b9\u5f0f\u6765\u7ba1\u7406\u72b6\u6001\uff0c\u8fd9\u5c31\u662fRedux\u7684\u4f5c\u7528\u3002<\/p>\n\n\n\n<p>Redux\u7684\u6838\u5fc3\u7406\u5ff5\u662f\uff1a\u6574\u4e2a\u5e94\u7528\u7684\u72b6\u6001\uff08state\uff09\u4ee5\u4e00\u4e2a\u5bf9\u8c61\u6811\u7684\u65b9\u5f0f\u5b58\u50a8\u5728\u4e00\u4e2a\u5355\u4e00\u7684\u5b58\u50a8\u5e93\uff08store\uff09\u4e2d\u3002\u72b6\u6001\u662f\u53ea\u8bfb\u7684\uff0c\u552f\u4e00\u6539\u53d8\u72b6\u6001\u7684\u65b9\u5f0f\u662f\u89e6\u53d1\u4e00\u4e2a\u52a8\u4f5c\uff08action\uff09\u3002\u4e3a\u4e86\u63cf\u8ff0\u7528\u6237\u884c\u4e3a\uff0c\u8fd9\u4e9b\u52a8\u4f5c\u4ee5\u7eaf\u51fd\u6570\u7684\u5f62\u5f0f\u88ab\u53d1\u9001\u3002\u8fd9\u4e9b\u7eaf\u51fd\u6570\u79f0\u4e3a\u201creducer\u201d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Action<\/strong>\uff1aRedux\u4e2d\u7684actions\u662f\u5c06\u6570\u636e\u4f20\u9012\u5230store\u7684\u4fe1\u606f\u8f7d\u4f53\u3002\u5b83\u662f\u4e00\u4e2a\u7b80\u5355\u7684JavaScript\u5bf9\u8c61\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u63cf\u8ff0\u52a8\u4f5c\u7c7b\u578b\u7684<code>type<\/code>\u5b57\u6bb5\uff0c\u4ee5\u53ca\u4e00\u4e2a\u63cf\u8ff0\u66f4\u6539\u7684\u6570\u636e\u7684<code>payload<\/code>\u5b57\u6bb5\u3002<\/li>\n\n\n\n<li><strong>Reducer<\/strong>\uff1aRedux\u4e2d\u7684reducer\u662f\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u72b6\u6001\u66f4\u6539\u7684\u7eaf\u51fd\u6570\u3002\u5b83\u63a5\u6536\u5f53\u524d\u7684\u72b6\u6001\u548c\u4e00\u4e2a\u52a8\u4f5c\uff0c\u7136\u540e\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u72b6\u6001\u3002<\/li>\n\n\n\n<li><strong>Store<\/strong>\uff1aRedux\u4e2d\u7684store\u5c31\u50cf\u4e00\u4e2a\u5bb9\u5668\uff0c\u5c06\u5e94\u7528\u7a0b\u5e8f\u7684\u72b6\u6001\u5b58\u50a8\u5728\u4e00\u4e2a\u5730\u65b9\u3002\u5b83\u6709\u56db\u4e2a\u4e3b\u8981\u7684\u529f\u80fd\uff1a\u6301\u6709\u5e94\u7528\u7684\u72b6\u6001\uff1b\u5141\u8bb8\u901a\u8fc7<code>dispatch()<\/code>\u65b9\u6cd5\u66f4\u65b0\u72b6\u6001\uff1b\u901a\u8fc7<code>getState()<\/code>\u65b9\u6cd5\u83b7\u53d6\u72b6\u6001\uff1b\u6ce8\u518c\u76d1\u542c\u5668\u3002<\/li>\n<\/ol>\n\n\n\n<p>Redux\u7684\u5de5\u4f5c\u6d41\u7a0b\u975e\u5e38\u7b80\u5355\uff1a\u4f60\u5c06\u52a8\u4f5c\u5206\u6d3e\uff08dispatch\uff09\u5230\u5b58\u50a8\u5e93\uff0c\u5b58\u50a8\u5e93\u5c06\u52a8\u4f5c\u548c\u5f53\u524d\u72b6\u6001\u4e00\u8d77\u53d1\u9001\u5230reducer\uff0creducer\u6839\u636e\u52a8\u4f5c\u7c7b\u578b\u8ba1\u7b97\u65b0\u7684\u72b6\u6001\uff0c\u7136\u540e\u5b58\u50a8\u5e93\u5c06\u65b0\u7684\u72b6\u6001\u4fdd\u5b58\u5e76\u901a\u77e5\u6240\u6709\u7684\u76d1\u542c\u5668\u72b6\u6001\u5df2\u7ecf\u6539\u53d8\u3002<\/p>\n\n\n\n<p>\u8fd9\u79cd\u4e25\u683c\u7684\u5de5\u4f5c\u6d41\u7a0b\u4f7f\u5f97Redux\u7684\u72b6\u6001\u7ba1\u7406\u53d8\u5f97\u53ef\u9884\u6d4b\u548c\u4e00\u81f4\uff0c\u975e\u5e38\u9002\u5408\u5904\u7406\u590d\u6742\u7684\u72b6\u6001\u903b\u8f91\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caRedux\u7684\u5de5\u4f5c\u539f\u7406ChatGPT<\/p>\n\n\n\n<p>Redux\u7684\u5de5\u4f5c\u539f\u7406\u4e3b\u8981\u57fa\u4e8e\u4e09\u4e2a\u4e3b\u8981\u7684\u6982\u5ff5\uff1aAction\u3001Reducer\u548cStore\u3002\u4e0b\u9762\u6211\u5c06\u8be6\u7ec6\u89e3\u91ca\u8fd9\u4e09\u4e2a\u6982\u5ff5\uff0c\u4ee5\u53ca\u5b83\u4eec\u5982\u4f55\u534f\u540c\u5de5\u4f5c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Action<\/strong>\uff1a\u5728Redux\u4e2d\uff0c\u6240\u6709\u7684\u6539\u53d8\u90fd\u662f\u7531action\u6765\u9a71\u52a8\u7684\u3002Action\u662f\u4e00\u4e2a\u7b80\u5355\u7684JavaScript\u5bf9\u8c61\uff0c\u63cf\u8ff0\u4e86\u4e00\u4e2a\u64cd\u4f5c\u7684\u7c7b\u578b\u548c\u6570\u636e\u3002\u4f8b\u5982\uff0c\u4e00\u4e2a\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684action\u53ef\u80fd\u770b\u8d77\u6765\u50cf\u8fd9\u6837\uff1ajavascriptCopy code<code>{ type: 'ADD_TODO', payload: { text: 'Go shopping' } } <\/code>\u8fd9\u91cc\uff0c<code>type<\/code>\u5b57\u6bb5\u63cf\u8ff0\u4e86\u8fd9\u662f\u4e00\u4e2a\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684action\uff0c\u800c<code>payload<\/code>\u5b57\u6bb5\u5219\u5305\u542b\u4e86\u6dfb\u52a0\u7684\u5f85\u529e\u4e8b\u9879\u7684\u5185\u5bb9\u3002<\/li>\n\n\n\n<li><strong>Reducer<\/strong>\uff1aReducer\u662f\u5904\u7406action\u7684\u7eaf\u51fd\u6570\u3002\u5b83\u63a5\u53d7\u5f53\u524d\u7684\u72b6\u6001\u548c\u4e00\u4e2aaction\uff0c\u7136\u540e\u8fd4\u56de\u65b0\u7684\u72b6\u6001\u3002\u4f8b\u5982\uff0c\u5904\u7406\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684reducer\u53ef\u80fd\u770b\u8d77\u6765\u50cf\u8fd9\u6837\uff1ajavascriptCopy code<code>function todoReducer(state = [], action) { switch (action.type) { case 'ADD_TODO': return [...state, action.payload]; default: return state; } } <\/code>\u8fd9\u91cc\uff0c<code>todoReducer<\/code>\u51fd\u6570\u63a5\u53d7\u5f53\u524d\u7684\u72b6\u6001\uff08\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\u7684\u6570\u7ec4\uff09\u548c\u4e00\u4e2aaction\u3002\u5982\u679caction\u7684\u7c7b\u578b\u662f&#8217;ADD_TODO&#8217;\uff0c\u5b83\u5c31\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u4e86\u65b0\u7684\u5f85\u529e\u4e8b\u9879\u7684\u65b0\u6570\u7ec4\uff1b\u5426\u5219\uff0c\u5b83\u5c31\u8fd4\u56de\u539f\u6765\u7684\u72b6\u6001\u3002<\/li>\n\n\n\n<li><strong>Store<\/strong>\uff1aStore\u662fRedux\u4e2d\u7684\u4e2d\u592e\u5b58\u50a8\uff0c\u4fdd\u5b58\u4e86\u6574\u4e2a\u5e94\u7528\u7684\u72b6\u6001\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7store\u7684<code>getState<\/code>\u65b9\u6cd5\u83b7\u53d6\u5f53\u524d\u7684\u72b6\u6001\uff0c\u901a\u8fc7store\u7684<code>dispatch<\/code>\u65b9\u6cd5\u53d1\u9001action\uff0c\u4ee5\u53ca\u901a\u8fc7store\u7684<code>subscribe<\/code>\u65b9\u6cd5\u6dfb\u52a0\u72b6\u6001\u53d8\u5316\u7684\u76d1\u542c\u5668\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5f53\u4f60\u901a\u8fc7store\u7684<code>dispatch<\/code>\u65b9\u6cd5\u53d1\u9001\u4e00\u4e2aaction\u65f6\uff0cRedux\u4f1a\u5c06\u5f53\u524d\u7684\u72b6\u6001\u548c\u8fd9\u4e2aaction\u4e00\u8d77\u4f20\u9012\u7ed9reducer\u3002reducer\u4f1a\u8ba1\u7b97\u65b0\u7684\u72b6\u6001\uff0c\u7136\u540estore\u4f1a\u4fdd\u5b58\u8fd9\u4e2a\u65b0\u7684\u72b6\u6001\u5e76\u901a\u77e5\u6240\u6709\u7684\u76d1\u542c\u5668\u3002<\/p>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0cRedux\u7684\u5de5\u4f5c\u539f\u7406\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4f60\u901a\u8fc7store\u7684<code>dispatch<\/code>\u65b9\u6cd5\u53d1\u9001\u4e00\u4e2aaction\u3002<\/li>\n\n\n\n<li>Redux\u4f1a\u5c06\u5f53\u524d\u7684\u72b6\u6001\u548c\u8fd9\u4e2aaction\u4e00\u8d77\u4f20\u9012\u7ed9reducer\u3002<\/li>\n\n\n\n<li>reducer\u4f1a\u6839\u636e\u8fd9\u4e2aaction\u7684\u7c7b\u578b\u6765\u51b3\u5b9a\u5982\u4f55\u66f4\u65b0\u72b6\u6001\uff0c\u5e76\u8fd4\u56de\u65b0\u7684\u72b6\u6001\u3002<\/li>\n\n\n\n<li>store\u4f1a\u4fdd\u5b58\u8fd9\u4e2a\u65b0\u7684\u72b6\u6001\uff0c\u5e76\u901a\u77e5\u6240\u6709\u7684\u76d1\u542c\u5668\u72b6\u6001\u5df2\u7ecf\u6539\u53d8\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u79cd\u5de5\u4f5c\u6d41\u7a0b\u4fdd\u8bc1\u4e86\u72b6\u6001\u7684\u66f4\u65b0\u603b\u662f\u53ef\u9884\u6d4b\u548c\u4e00\u81f4\u7684\uff0c\u4f7f\u5f97\u590d\u6742\u7684\u72b6\u6001\u7ba1\u7406\u53d8\u5f97\u66f4\u5bb9\u6613\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4e3a\u4ec0\u4e48\u9700\u8981ReduxChatGPT<\/p>\n\n\n\n<p>\u5728\u7406\u89e3\u4e3a\u4ec0\u4e48\u9700\u8981Redux\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u5148\u4e86\u89e3\u4e00\u4e0b\u5728\u524d\u7aef\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u5904\u7406\u7684\u72b6\u6001\u7ba1\u7406\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u5728\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c&#8221;\u72b6\u6001&#8221;\u901a\u5e38\u6307\u7684\u662f\u5728\u67d0\u4e2a\u7ed9\u5b9a\u65f6\u95f4\u70b9\u5e94\u7528\u7a0b\u5e8f\u77e5\u9053\u7684\u6240\u6709\u4fe1\u606f\uff0c\u8fd9\u53ef\u4ee5\u5305\u62ec\u7528\u6237\u5728\u8868\u5355\u4e2d\u586b\u5199\u7684\u6570\u636e\u3001\u662f\u5426\u6709\u6a21\u6001\u5bf9\u8bdd\u6846\u6b63\u5728\u663e\u793a\u3001\u7528\u6237\u662f\u5426\u5df2\u7ecf\u767b\u5f55\u3001\u4ece\u670d\u52a1\u5668\u83b7\u53d6\u7684\u6570\u636e\u7b49\u3002\u5728\u7b80\u5355\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u8fd9\u4e2a\u72b6\u6001\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u5728\u5404\u4e2a\u7ec4\u4ef6\u4e2d\u7ba1\u7406\u548c\u66f4\u65b0\u3002<\/p>\n\n\n\n<p>\u7136\u800c\uff0c\u5f53\u5e94\u7528\u7a0b\u5e8f\u53d8\u5f97\u8d8a\u6765\u8d8a\u590d\u6742\uff0c\u72b6\u6001\u7ba1\u7406\u4e5f\u53d8\u5f97\u8d8a\u6765\u8d8a\u56f0\u96be\u3002\u4e0d\u540c\u7684\u7ec4\u4ef6\u53ef\u80fd\u9700\u8981\u8bbf\u95ee\u548c\u4fee\u6539\u76f8\u540c\u7684\u72b6\u6001\uff0c\u590d\u6742\u7684\u64cd\u4f5c\u53ef\u80fd\u9700\u8981\u591a\u4e2a\u6b65\u9aa4\u5e76\u5f71\u54cd\u8bb8\u591a\u4e0d\u540c\u7684\u72b6\u6001\uff0c\u7b49\u7b49\u3002\u8fd9\u65f6\uff0c\u5c31\u9700\u8981\u4e00\u4e2a\u96c6\u4e2d\u7684\u3001\u53ef\u9884\u6d4b\u7684\u65b9\u5f0f\u6765\u7ba1\u7406\u72b6\u6001\uff0c\u8fd9\u5c31\u662fRedux\u7684\u4f5c\u7528\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e3a\u4ec0\u4e48\u9700\u8981\u4f7f\u7528Redux\u7684\u4e00\u4e9b\u539f\u56e0\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u96c6\u4e2d\u7684\u72b6\u6001\u7ba1\u7406<\/strong>\uff1aRedux\u63d0\u4f9b\u4e86\u4e00\u4e2a\u96c6\u4e2d\u7684\u5730\u65b9\u6765\u5b58\u50a8\u5e94\u7528\u7684\u6240\u6709\u72b6\u6001\uff0c\u8fd9\u4f7f\u5f97\u72b6\u6001\u66f4\u5bb9\u6613\u7ba1\u7406\u548c\u8ddf\u8e2a\u3002<\/li>\n\n\n\n<li><strong>\u53ef\u9884\u6d4b\u6027<\/strong>\uff1aRedux\u4f7f\u7528\u5355\u5411\u6570\u636e\u6d41\u548c\u7eaf\u51fd\u6570\uff08reducer\uff09\u6765\u66f4\u65b0\u72b6\u6001\uff0c\u8fd9\u4f7f\u5f97\u72b6\u6001\u7684\u66f4\u65b0\u66f4\u53ef\u9884\u6d4b\u3002<\/li>\n\n\n\n<li><strong>\u8c03\u8bd5\u548c\u5f00\u53d1\u5de5\u5177<\/strong>\uff1aRedux\u6709\u4e00\u7cfb\u5217\u5f3a\u5927\u7684\u5f00\u53d1\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u4f60\u8ddf\u8e2a\u72b6\u6001\u7684\u53d8\u5316\uff0c\u751a\u81f3\u53ef\u4ee5&#8221;\u65f6\u95f4\u65c5\u884c&#8221;\u5230\u5e94\u7528\u7684\u67d0\u4e2a\u5386\u53f2\u72b6\u6001\u3002<\/li>\n\n\n\n<li><strong>\u670d\u52a1\u5668\u6e32\u67d3<\/strong>\uff1aRedux\u652f\u6301\u670d\u52a1\u5668\u6e32\u67d3\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u5728\u670d\u52a1\u5668\u4e0a\u521d\u59cb\u5316\u548c\u52a0\u8f7d\u72b6\u6001\u3002<\/li>\n\n\n\n<li><strong>\u72b6\u6001\u6301\u4e45\u5316<\/strong>\uff1a\u4f60\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u5c06Redux\u7684\u72b6\u6001\u4fdd\u5b58\u5230localStorage\u6216\u8005sessionStorage\uff0c\u7136\u540e\u5728\u9875\u9762\u5237\u65b0\u6216\u8005\u91cd\u65b0\u52a0\u8f7d\u65f6\u6062\u590d\u8fd9\u4e2a\u72b6\u6001\u3002<\/li>\n\n\n\n<li><strong>\u793e\u533a\u652f\u6301\u548c\u751f\u6001\u7cfb\u7edf<\/strong>\uff1aRedux\u6709\u4e00\u4e2a\u5e9e\u5927\u7684\u793e\u533a\u548c\u4e30\u5bcc\u7684\u751f\u6001\u7cfb\u7edf\uff0c\u4f60\u53ef\u4ee5\u627e\u5230\u8bb8\u591a\u4e2d\u95f4\u4ef6\u548c\u5e93\u6765\u5e2e\u52a9\u4f60\u89e3\u51b3\u5404\u79cd\u95ee\u9898\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5f53\u7136\uff0cRedux\u5e76\u4e0d\u662f\u552f\u4e00\u7684\u72b6\u6001\u7ba1\u7406\u89e3\u51b3\u65b9\u6848\uff0c\u4e5f\u4e0d\u4e00\u5b9a\u662f\u6700\u597d\u7684\u89e3\u51b3\u65b9\u6848\u3002\u5b83\u53ef\u80fd\u4f1a\u5f15\u5165\u4e00\u4e9b\u989d\u5916\u7684\u590d\u6742\u6027\uff0c\u4e0d\u9002\u5408\u6240\u6709\u7684\u9879\u76ee\u3002\u5728\u9009\u62e9\u662f\u5426\u4f7f\u7528Redux\u65f6\uff0c\u4f60\u9700\u8981\u6839\u636e\u4f60\u7684\u5177\u4f53\u9700\u6c42\u548c\u9879\u76ee\u7684\u590d\u6742\u6027\u6765\u51b3\u5b9a\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u521b\u5efaActionChatGPT<\/p>\n\n\n\n<p>\u5728Redux\u4e2d\uff0cAction\u662f\u53d1\u9001\u6570\u636e\u5230\u5b58\u50a8\u5e93\u7684\u4fe1\u606f\u8f7d\u4f53\u3002Action\u662f\u4e00\u4e2a\u666e\u901a\u7684JavaScript\u5bf9\u8c61\uff0c\u5b83\u81f3\u5c11\u5305\u542b\u4e00\u4e2a<code>type<\/code>\u5b57\u6bb5\u6765\u8868\u793a\u8fd9\u4e2aAction\u7684\u7c7b\u578b\u3002\u9664\u4e86<code>type<\/code>\u5b57\u6bb5\uff0cAction\u5bf9\u8c61\u901a\u5e38\u8fd8\u4f1a\u6709\u5176\u4ed6\u5b57\u6bb5\u6765\u643a\u5e26\u989d\u5916\u7684\u4fe1\u606f\u6216\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u8868\u793a\u201c\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u201d\u7684Action\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>{\n    type: 'ADD_TODO',\n    payload: {\n        text: 'Learn Redux'\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0cAction\u7684<code>type<\/code>\u5b57\u6bb5\u662f<code>'ADD_TODO'<\/code>\uff0c\u8868\u793a\u8fd9\u662f\u4e00\u4e2a\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684Action\u3002<code>payload<\/code>\u5b57\u6bb5\u5305\u542b\u4e86\u8981\u6dfb\u52a0\u7684\u5f85\u529e\u4e8b\u9879\u7684\u5177\u4f53\u5185\u5bb9\u3002<\/p>\n\n\n\n<p>\u901a\u5e38\uff0c\u6211\u4eec\u4f1a\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6765\u521b\u5efaAction\uff0c\u8fd9\u4e2a\u51fd\u6570\u88ab\u79f0\u4e3aAction\u521b\u5efa\u51fd\u6570\u3002\u4f8b\u5982\uff0c\u5bf9\u5e94\u4e8e\u4e0a\u9762\u7684\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684Action\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2aAction\u521b\u5efa\u51fd\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>function addTodo(text) {\n    return {\n        type: 'ADD_TODO',\n        payload: {\n            text\n        }\n    };\n}\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a<code>addTodo<\/code>\u51fd\u6570\u63a5\u6536\u4e00\u4e2a\u53c2\u6570<code>text<\/code>\uff0c\u7136\u540e\u8fd4\u56de\u4e00\u4e2aAction\u3002\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u4f7f\u7528\u8fd9\u4e2a\u51fd\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>const action = addTodo('Learn Redux');\n<\/code><\/pre>\n\n\n\n<p>\u73b0\u5728\uff0c<code>action<\/code>\u5c31\u662f\u4e00\u4e2a\u8868\u793a\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684Action\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7Redux\u7684<code>dispatch<\/code>\u51fd\u6570\u6765\u53d1\u9001\u8fd9\u4e2aAction\uff0c\u89e6\u53d1\u72b6\u6001\u7684\u66f4\u65b0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>store.dispatch(action);\n<\/code><\/pre>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0c\u521b\u5efaAction\u4e3b\u8981\u5305\u542b\u4e24\u4e2a\u6b65\u9aa4\uff1a\u5b9a\u4e49Action\u5bf9\u8c61\uff0c\u7136\u540e\u5b9a\u4e49\u5bf9\u5e94\u7684Action\u521b\u5efa\u51fd\u6570\u3002Action\u521b\u5efa\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u65b9\u4fbf\u5730\u521b\u5efa\u548c\u53d1\u9001Action\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u53d1\u9001ActionChatGPT<\/p>\n\n\n\n<p>\u5728Redux\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u8c03\u7528Redux store\u7684<code>dispatch<\/code>\u51fd\u6570\u6765\u53d1\u9001\uff08\u6216\u8005\u8bf4\u201c\u5206\u53d1\u201d\uff09action\u3002\u5f53\u4f60\u521b\u5efa\u4e86\u4e00\u4e2aaction\u4e4b\u540e\uff0c\u4f60\u53ef\u4ee5\u8c03\u7528<code>dispatch<\/code>\u51fd\u6570\uff0c\u5e76\u5c06action\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\u3002\u8fd9\u6837\uff0cRedux\u5c31\u4f1a\u5c06\u8fd9\u4e2aaction\u4f20\u9012\u7ed9reducer\u51fd\u6570\uff0c\u7136\u540ereducer\u51fd\u6570\u5c31\u4f1a\u6839\u636e\u8fd9\u4e2aaction\u6765\u66f4\u65b0\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a<code>addTodo<\/code>\u7684action\u521b\u5efa\u51fd\u6570\uff0c\u5b83\u8fd4\u56de\u4e00\u4e2a\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684action\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>function addTodo(text) {\n    return {\n        type: 'ADD_TODO',\n        payload: {\n            text\n        }\n    };\n}\n<\/code><\/pre>\n\n\n\n<p>\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u53d1\u9001\u4e00\u4e2a\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684action\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>const action = addTodo('Learn Redux');\nstore.dispatch(action);\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u8c03\u7528<code>addTodo<\/code>\u51fd\u6570\u6765\u521b\u5efa\u4e00\u4e2aaction\u3002\u7136\u540e\uff0c\u6211\u4eec\u8c03\u7528<code>store.dispatch<\/code>\u51fd\u6570\uff0c\u5e76\u5c06\u8fd9\u4e2aaction\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\u3002\u8fd9\u6837\uff0cRedux\u5c31\u4f1a\u5c06\u8fd9\u4e2aaction\u4f20\u9012\u7ed9reducer\u51fd\u6570\uff0c\u7136\u540ereducer\u51fd\u6570\u5c31\u4f1a\u6839\u636e\u8fd9\u4e2aaction\u6765\u66f4\u65b0\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u6ce8\u610f\uff1a\u5728\u4e00\u4e2aReact\u548cRedux\u7684\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u4f1a\u4f7f\u7528<code>react-redux<\/code>\u5e93\u63d0\u4f9b\u7684<code>useDispatch<\/code> Hook\u6765\u83b7\u53d6<code>dispatch<\/code>\u51fd\u6570\uff0c\u7136\u540e\u7528\u5b83\u6765\u53d1\u9001action\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { useDispatch } from 'react-redux';\n\nfunction TodoAdder() {\n    const dispatch = useDispatch();\n\n    const addTodo = text =&gt; {\n        dispatch({\n            type: 'ADD_TODO',\n            payload: {\n                text\n            }\n        });\n    };\n\n    \/\/ ...\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u8c03\u7528<code>useDispatch<\/code> Hook\u6765\u83b7\u53d6<code>dispatch<\/code>\u51fd\u6570\u3002\u7136\u540e\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a<code>addTodo<\/code>\u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u63a5\u6536\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\u7684\u6587\u672c\uff0c\u7136\u540e\u8c03\u7528<code>dispatch<\/code>\u51fd\u6570\u6765\u53d1\u9001\u4e00\u4e2a\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684action\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u5904\u7406ActionChatGPT<\/p>\n\n\n\n<p>\u5728 Redux \u4e2d\uff0c\u5904\u7406 action \u7684\u51fd\u6570\u79f0\u4e3a reducer\u3002Reducer \u662f\u7eaf\u51fd\u6570\uff0c\u5b83\u63a5\u6536\u5f53\u524d\u7684\u72b6\u6001\u548c\u4e00\u4e2a action\uff0c\u7136\u540e\u8fd4\u56de\u65b0\u7684\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5982\u679c\u6211\u4eec\u6709\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\u5217\u8868\u7684\u5e94\u7528\uff0c\u6211\u4eec\u53ef\u80fd\u4f1a\u6709\u4e00\u4e2a reducer \u6765\u5904\u7406\u5f85\u529e\u4e8b\u9879\u76f8\u5173\u7684 action\u3002\u8fd9\u4e2a reducer \u53ef\u80fd\u770b\u8d77\u6765\u50cf\u8fd9\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>function todosReducer(state = [], action) {\n    switch (action.type) {\n        case 'ADD_TODO':\n            return [...state, action.payload];\n        case 'REMOVE_TODO':\n            let newState = [...state];\n            newState.splice(action.payload, 1);\n            return newState;\n        default:\n            return state;\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>todosReducer<\/code> \u51fd\u6570\u63a5\u6536\u5f53\u524d\u7684\u72b6\u6001\uff08\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\u7684\u6570\u7ec4\uff09\u548c\u4e00\u4e2a action\u3002\u8fd9\u4e2a\u51fd\u6570\u9996\u5148\u68c0\u67e5 action \u7684\u7c7b\u578b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c action \u7684\u7c7b\u578b\u662f <code>'ADD_TODO'<\/code>\uff0c\u90a3\u4e48\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u8fd9\u4e2a\u6570\u7ec4\u5305\u542b\u4e86\u6240\u6709\u65e7\u7684\u5f85\u529e\u4e8b\u9879\u548c\u65b0\u7684\u5f85\u529e\u4e8b\u9879\uff08\u4ece action \u7684 <code>payload<\/code> \u5b57\u6bb5\u4e2d\u83b7\u53d6\uff09\u3002<\/li>\n\n\n\n<li>\u5982\u679c action \u7684\u7c7b\u578b\u662f <code>'REMOVE_TODO'<\/code>\uff0c\u90a3\u4e48\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u8fd9\u4e2a\u6570\u7ec4\u662f\u5220\u9664\u4e86\u6307\u5b9a\u5f85\u529e\u4e8b\u9879\uff08\u4ece action \u7684 <code>payload<\/code> \u5b57\u6bb5\u4e2d\u83b7\u53d6\u7d22\u5f15\uff09\u540e\u7684\u65e7\u6570\u7ec4\u3002<\/li>\n\n\n\n<li>\u5982\u679c action \u7684\u7c7b\u578b\u65e2\u4e0d\u662f <code>'ADD_TODO'<\/code> \u4e5f\u4e0d\u662f <code>'REMOVE_TODO'<\/code>\uff0c\u90a3\u4e48\u5b83\u4f1a\u8fd4\u56de\u539f\u6765\u7684\u72b6\u6001\u3002\u8fd9\u662f\u4e00\u4e2a\u9ed8\u8ba4\u7684\u5904\u7406\u65b9\u5f0f\uff0c\u7528\u6765\u5904\u7406\u672a\u77e5\u7684 action \u7c7b\u578b\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u5728\u4f60\u7684\u5e94\u7528\u4e2d\u5b9a\u4e49\u591a\u4e2a reducer\uff0c\u6bcf\u4e2a reducer \u8d1f\u8d23\u5904\u7406\u72b6\u6001\u7684\u4e00\u4e2a\u90e8\u5206\u3002\u7136\u540e\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 Redux \u7684 <code>combineReducers<\/code> \u51fd\u6570\u5c06\u5b83\u4eec\u7ec4\u5408\u6210\u4e00\u4e2a\u4e3b reducer\u3002<\/p>\n\n\n\n<p>\u5f53\u4f60\u901a\u8fc7 Redux store \u7684 <code>dispatch<\/code> \u65b9\u6cd5\u53d1\u9001\u4e00\u4e2a action \u65f6\uff0cstore \u4f1a\u5c06\u5f53\u524d\u7684\u72b6\u6001\u548c\u8fd9\u4e2a action \u4e00\u8d77\u4f20\u9012\u7ed9 reducer\u3002reducer \u4f1a\u6839\u636e action \u7684\u7c7b\u578b\u548c\u6570\u636e\u6765\u8ba1\u7b97\u65b0\u7684\u72b6\u6001\uff0c\u7136\u540e\u8fd9\u4e2a\u65b0\u7684\u72b6\u6001\u4f1a\u88ab\u4fdd\u5b58\u5230 store \u4e2d\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caReducer\u5982\u4f55\u5904\u7406ActionChatGPT<\/p>\n\n\n\n<p>\u5728 Redux \u4e2d\uff0c\u5904\u7406 Action \u7684\u51fd\u6570\u88ab\u79f0\u4e3a Reducer\u3002Reducer \u662f\u4e00\u4e2a\u7eaf\u51fd\u6570\uff0c\u5b83\u63a5\u6536\u5f53\u524d\u7684\u72b6\u6001\u548c\u4e00\u4e2a Action\uff0c\u7136\u540e\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u72b6\u6001\u3002<\/p>\n\n\n\n<p>Reducer \u7684\u57fa\u672c\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>function reducer(state, action) {\n    \/\/ \u6839\u636e action \u7c7b\u578b\u5904\u7406\u72b6\u6001\n}\n<\/code><\/pre>\n\n\n\n<p>\u901a\u5e38\uff0c\u6211\u4eec\u4f1a\u4f7f\u7528 <code>switch<\/code> \u8bed\u53e5\u6839\u636e Action \u7684\u7c7b\u578b\u6765\u5904\u7406\u72b6\u6001\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u7ba1\u7406\u5f85\u529e\u4e8b\u9879\u5217\u8868\u7684\u5e94\u7528\uff0c\u6211\u4eec\u53ef\u80fd\u4f1a\u6709\u4e00\u4e2a\u540d\u4e3a <code>todos<\/code> \u7684 reducer\uff0c\u5b83\u53ef\u80fd\u770b\u8d77\u6765\u50cf\u8fd9\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>function todos(state = [], action) {\n    switch (action.type) {\n        case 'ADD_TODO':\n            \/\/ \u5728\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u5b83\u5305\u542b\u6240\u6709\u65e7\u7684\u5f85\u529e\u4e8b\u9879\u548c\u65b0\u7684\u5f85\u529e\u4e8b\u9879\n            return [...state, action.payload];\n        case 'DELETE_TODO':\n            \/\/ \u5728\u5220\u9664\u5f85\u529e\u4e8b\u9879\u7684\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u5b83\u4e0d\u5305\u542b\u8981\u5220\u9664\u7684\u5f85\u529e\u4e8b\u9879\n            return state.filter((todo, index) =&gt; index !== action.payload);\n        default:\n            \/\/ \u5982\u679c action \u7c7b\u578b\u65e2\u4e0d\u662f 'ADD_TODO' \u4e5f\u4e0d\u662f 'DELETE_TODO'\uff0c\u90a3\u4e48\u6211\u4eec\u53ea\u662f\u8fd4\u56de\u65e7\u7684\u72b6\u6001\n            return state;\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>todos<\/code> \u51fd\u6570\u662f\u4e00\u4e2a Reducer\uff0c\u5b83\u63a5\u6536\u5f53\u524d\u7684\u72b6\u6001\uff08\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\u7684\u6570\u7ec4\uff09\u548c\u4e00\u4e2a Action\u3002\u7136\u540e\uff0c\u5b83\u4f7f\u7528 <code>switch<\/code> \u8bed\u53e5\u6765\u68c0\u67e5 Action \u7684\u7c7b\u578b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c Action \u7684\u7c7b\u578b\u662f <code>'ADD_TODO'<\/code>\uff0c\u90a3\u4e48\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u8fd9\u4e2a\u6570\u7ec4\u5305\u542b\u4e86\u6240\u6709\u65e7\u7684\u5f85\u529e\u4e8b\u9879\u548c\u65b0\u7684\u5f85\u529e\u4e8b\u9879\uff08\u4ece Action \u7684 <code>payload<\/code> \u5c5e\u6027\u4e2d\u83b7\u53d6\uff09\u3002<\/li>\n\n\n\n<li>\u5982\u679c Action \u7684\u7c7b\u578b\u662f <code>'DELETE_TODO'<\/code>\uff0c\u90a3\u4e48\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u8fd9\u4e2a\u6570\u7ec4\u4e0d\u5305\u542b\u88ab\u5220\u9664\u7684\u5f85\u529e\u4e8b\u9879\uff08\u4f7f\u7528 Action \u7684 <code>payload<\/code> \u5c5e\u6027\u4f5c\u4e3a\u7d22\u5f15\u6765\u8bc6\u522b\u8981\u5220\u9664\u7684\u5f85\u529e\u4e8b\u9879\uff09\u3002<\/li>\n\n\n\n<li>\u5982\u679c Action \u7684\u7c7b\u578b\u65e2\u4e0d\u662f <code>'ADD_TODO'<\/code> \u4e5f\u4e0d\u662f <code>'DELETE_TODO'<\/code>\uff0c\u90a3\u4e48\u5b83\u4f1a\u8fd4\u56de\u539f\u6765\u7684\u72b6\u6001\u3002\u8fd9\u662f\u4e00\u4e2a\u9ed8\u8ba4\u7684\u5904\u7406\u65b9\u5f0f\uff0c\u7528\u6765\u5904\u7406\u672a\u77e5\u7684 Action \u7c7b\u578b\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6700\u540e\uff0c\u8fd9\u4e2a\u65b0\u7684\u72b6\u6001\u4f1a\u88ab Redux Store \u4fdd\u5b58\uff0c\u7136\u540e\u88ab\u5e94\u7528\u4e2d\u7684\u7ec4\u4ef6\u4f7f\u7528\u3002<\/p>\n\n\n\n<p>\u6ce8\u610f\uff1a\u5728 Redux \u4e2d\uff0c\u6211\u4eec\u4e0d\u80fd\u76f4\u63a5\u4fee\u6539\u72b6\u6001\uff0c\u800c\u662f\u5fc5\u987b\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u72b6\u6001\u3002\u8fd9\u662f\u56e0\u4e3a\u72b6\u6001\u5728 Redux \u4e2d\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u8fd9\u4f7f\u5f97\u6211\u4eec\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u8ddf\u8e2a\u72b6\u6001\u7684\u53d8\u5316\uff0c\u8fdb\u884c\u8c03\u8bd5\u548c\u6d4b\u8bd5\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caReducer\u5982\u4f55\u5408\u5e76ReducerChatGPT<\/p>\n\n\n\n<p>\u5728 Redux \u4e2d\uff0c\u5982\u679c\u4f60\u6709\u591a\u4e2a reducer\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 Redux \u7684 <code>combineReducers<\/code> \u51fd\u6570\u6765\u5c06\u5b83\u4eec\u5408\u5e76\u6210\u4e00\u4e2a\u4e3b reducer\u3002<\/p>\n\n\n\n<p>\u6bcf\u4e2a reducer \u53ea\u5904\u7406\u72b6\u6001\u7684\u4e00\u90e8\u5206\uff0c\u8fd9\u90e8\u5206\u72b6\u6001\u88ab\u79f0\u4e3a\u8fd9\u4e2a reducer \u7684 slice\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u80fd\u6709\u4e00\u4e2a\u5904\u7406\u7528\u6237\u4fe1\u606f\u7684 reducer\uff0c\u4e00\u4e2a\u5904\u7406\u5f85\u529e\u4e8b\u9879\u7684 reducer\uff0c\u7b49\u7b49\u3002<code>combineReducers<\/code> \u51fd\u6570\u63a5\u6536\u4e00\u4e2a\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u7684\u6bcf\u4e2a\u952e\u90fd\u662f\u4e00\u4e2a slice \u7684\u540d\u5b57\uff0c\u5bf9\u5e94\u7684\u503c\u662f\u5904\u7406\u8fd9\u4e2a slice \u7684 reducer\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { combineReducers } from 'redux';\n\nfunction todos(state = [], action) {\n    \/\/ ...\n}\n\nfunction user(state = null, action) {\n    \/\/ ...\n}\n\nconst rootReducer = combineReducers({\n    todos,\n    user\n});\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u6709\u4e24\u4e2a reducer\uff1a<code>todos<\/code> \u548c <code>user<\/code>\u3002\u6211\u4eec\u4f7f\u7528 <code>combineReducers<\/code> \u51fd\u6570\u6765\u521b\u5efa\u4e00\u4e2a\u4e3b reducer\uff0c\u5b83\u6709\u4e24\u4e2a slice\uff1a<code>todos<\/code> \u548c <code>user<\/code>\u3002<\/p>\n\n\n\n<p>\u5f53\u4e00\u4e2a action \u88ab dispatch \u65f6\uff0c<code>rootReducer<\/code> \u4f1a\u5c06\u6bcf\u4e2a slice \u7684\u5f53\u524d\u72b6\u6001\u548c\u8fd9\u4e2a action \u4f20\u9012\u7ed9\u5bf9\u5e94\u7684 reducer\uff0c\u7136\u540e\u8fd9\u4e2a reducer \u4f1a\u8fd4\u56de\u65b0\u7684\u72b6\u6001\u3002<code>rootReducer<\/code> \u4f1a\u5c06\u6240\u6709 reducer \u8fd4\u56de\u7684\u65b0\u72b6\u6001\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u7684\u603b\u72b6\u6001\uff0c\u7136\u540e\u8fd9\u4e2a\u65b0\u7684\u603b\u72b6\u6001\u4f1a\u88ab\u4fdd\u5b58\u5230 store \u4e2d\u3002<\/p>\n\n\n\n<p>\u8fd9\u6837\uff0c\u4f60\u5c31\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5927\u7684\u72b6\u6001\u7ba1\u7406\u95ee\u9898\u5206\u89e3\u6210\u591a\u4e2a\u5c0f\u7684\u95ee\u9898\uff0c\u6bcf\u4e2a reducer \u53ea\u9700\u8981\u5173\u6ce8\u5b83\u81ea\u5df1\u7684 slice\u3002\u8fd9\u4f7f\u5f97\u4f60\u7684\u4ee3\u7801\u66f4\u6613\u4e8e\u7406\u89e3\u548c\u7ef4\u62a4\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u521b\u5efaStoreChatGPT<\/p>\n\n\n\n<p>\u5728 Redux \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 <code>createStore<\/code> \u51fd\u6570\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 Store\u3002<code>createStore<\/code> \u51fd\u6570\u63a5\u6536\u4e09\u4e2a\u53c2\u6570\uff1a\u4e00\u4e2a reducer\u3001\u4e00\u4e2a\u53ef\u9009\u7684\u9884\u52a0\u8f7d\u72b6\u6001\u548c\u4e00\u4e2a\u53ef\u9009\u7684 Store \u589e\u5f3a\u5668\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u57fa\u672c\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { createStore } from 'redux';\n\nfunction reducer(state = {}, action) {\n    \/\/ ...\n}\n\nconst store = createStore(reducer);\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u5bfc\u5165 <code>createStore<\/code> \u51fd\u6570\u3002\u7136\u540e\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a reducer\u3002\u6700\u540e\uff0c\u6211\u4eec\u8c03\u7528 <code>createStore<\/code> \u51fd\u6570\uff0c\u5e76\u5c06 reducer \u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\u3002\u8fd9\u6837\uff0c\u6211\u4eec\u5c31\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684 Store\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u9884\u52a0\u8f7d\u72b6\u6001\uff0c\u4f60\u53ef\u4ee5\u5c06\u5b83\u4f5c\u4e3a <code>createStore<\/code> \u51fd\u6570\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>const preloadedState = {\n    todos: ['Learn Redux']\n};\n\nconst store = createStore(reducer, preloadedState);\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a Store\uff0c\u5b83\u7684\u521d\u59cb\u72b6\u6001\u662f <code>{ todos: ['Learn Redux'] }<\/code>\u3002<\/p>\n\n\n\n<p><code>createStore<\/code> \u51fd\u6570\u7684\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u4e00\u4e2a Store \u589e\u5f3a\u5668\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u6dfb\u52a0\u4e00\u4e9b\u4e2d\u95f4\u4ef6\u6216\u8005\u5176\u4ed6\u7684 Store \u589e\u5f3a\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>applyMiddleware<\/code> \u51fd\u6570\u6765\u6dfb\u52a0\u4e00\u4e9b\u4e2d\u95f4\u4ef6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { createStore, applyMiddleware } from 'redux';\nimport thunk from 'redux-thunk';\n\nconst store = createStore(reducer, applyMiddleware(thunk));\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u6dfb\u52a0\u4e86 <code>redux-thunk<\/code> \u4e2d\u95f4\u4ef6\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u5728 Action \u521b\u5efa\u51fd\u6570\u4e2d\u8fd4\u56de\u4e00\u4e2a\u51fd\u6570\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u4e00\u4e2a Action \u5bf9\u8c61\u3002\u8fd9\u4f7f\u5f97\u6211\u4eec\u53ef\u4ee5\u5728 Action \u521b\u5efa\u51fd\u6570\u4e2d\u8fdb\u884c\u5f02\u6b65\u64cd\u4f5c\uff0c\u4f8b\u5982\u7f51\u7edc\u8bf7\u6c42\u3002<\/p>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0c\u521b\u5efa Store \u662f Redux \u5e94\u7528\u7684\u7b2c\u4e00\u6b65\u3002\u4e00\u65e6\u4f60\u6709\u4e86\u4e00\u4e2a Store\uff0c\u4f60\u5c31\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u7ba1\u7406\u72b6\u6001\uff0c\u53d1\u9001 Action\uff0c\u8ba2\u9605\u72b6\u6001\u53d8\u5316\uff0c\u7b49\u7b49\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u8ba2\u9605StoreChatGPT<\/p>\n\n\n\n<p>\u5728 Redux \u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 Store \u7684 <code>subscribe<\/code> \u65b9\u6cd5\u6765\u8ba2\u9605\u72b6\u6001\u7684\u53d8\u5316\u3002<code>subscribe<\/code> \u65b9\u6cd5\u63a5\u6536\u4e00\u4e2a\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u6bcf\u5f53\u72b6\u6001\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u8fd9\u4e2a\u51fd\u6570\u90fd\u4f1a\u88ab\u8c03\u7528\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u57fa\u672c\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>const store = createStore(reducer);\n\nstore.subscribe(() =&gt; {\n    console.log('The state has changed:', store.getState());\n});\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2a Store\u3002\u7136\u540e\uff0c\u6211\u4eec\u8c03\u7528 <code>store.subscribe<\/code> \u65b9\u6cd5\uff0c\u5e76\u4f20\u9012\u4e00\u4e2a\u51fd\u6570\u7ed9\u5b83\u3002\u8fd9\u4e2a\u51fd\u6570\u4f1a\u5728\u6bcf\u6b21\u72b6\u6001\u53d8\u5316\u65f6\u88ab\u8c03\u7528\uff0c\u6253\u5370\u4e00\u6761\u6d88\u606f\u548c\u65b0\u7684\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u5728\u4efb\u4f55\u65f6\u5019\u53d6\u6d88\u8ba2\u9605\u3002\u5f53\u4f60\u8c03\u7528 <code>store.subscribe<\/code> \u65b9\u6cd5\u65f6\uff0c\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2a\u51fd\u6570\uff0c\u4f60\u53ef\u4ee5\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u6765\u53d6\u6d88\u8ba2\u9605\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>const unsubscribe = store.subscribe(() =&gt; {\n    console.log('The state has changed:', store.getState());\n});\n\n\/\/ \u5728\u67d0\u4e2a\u65f6\u523b\uff0c\u4f60\u53ef\u4ee5\u8c03\u7528 unsubscribe \u51fd\u6570\u6765\u53d6\u6d88\u8ba2\u9605\nunsubscribe();\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u8ba2\u9605\u4e86\u72b6\u6001\u53d8\u5316\uff0c\u7136\u540e\u5728\u67d0\u4e2a\u65f6\u523b\u8c03\u7528 <code>unsubscribe<\/code> \u51fd\u6570\u6765\u53d6\u6d88\u8ba2\u9605\u3002<\/p>\n\n\n\n<p>\u5728\u4e00\u4e2a React \u548c Redux \u7684\u5e94\u7528\u4e2d\uff0c\u4f60\u901a\u5e38\u4e0d\u9700\u8981\u76f4\u63a5\u4f7f\u7528 <code>store.subscribe<\/code> \u65b9\u6cd5\u3002\u56e0\u4e3a <code>react-redux<\/code> \u5e93\u7684 <code>Provider<\/code> \u7ec4\u4ef6\u548c <code>useSelector<\/code> Hook \u4f1a\u5e2e\u4f60\u7ba1\u7406\u8ba2\u9605\u3002<\/p>\n\n\n\n<p><code>Provider<\/code> \u7ec4\u4ef6\u4f1a\u8ba2\u9605 Store\uff0c\u7136\u540e\u5f53\u72b6\u6001\u53d8\u5316\u65f6\uff0c\u5b83\u4f1a\u4f7f\u6240\u6709\u7684\u5b50\u7ec4\u4ef6\u91cd\u65b0\u6e32\u67d3\u3002<code>useSelector<\/code> Hook \u5141\u8bb8\u4f60\u5728\u7ec4\u4ef6\u4e2d\u9009\u62e9\u9700\u8981\u7684\u72b6\u6001\u7247\u6bb5\uff0c\u5f53\u8fd9\u4e2a\u72b6\u6001\u7247\u6bb5\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u8fd9\u4e2a Hook \u4f1a\u4f7f\u7ec4\u4ef6\u91cd\u65b0\u6e32\u67d3\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u66f4\u65b0StoreChatGPT<\/p>\n\n\n\n<p>\u5728 Redux \u4e2d\uff0c\u6211\u4eec\u4e0d\u80fd\u76f4\u63a5\u4fee\u6539 Store \u4e2d\u7684\u72b6\u6001\u3002\u76f8\u53cd\uff0c\u6211\u4eec\u9700\u8981\u53d1\u9001\u4e00\u4e2a Action \u6765\u63cf\u8ff0\u72b6\u6001\u5e94\u8be5\u5982\u4f55\u6539\u53d8\uff0c\u7136\u540e\u7531 Reducer \u57fa\u4e8e\u8fd9\u4e2a Action \u6765\u8ba1\u7b97\u65b0\u7684\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u66f4\u65b0 Store \u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u521b\u5efa\u4e00\u4e2a Action<\/strong>\uff1aAction \u662f\u4e00\u4e2a\u63cf\u8ff0\u5e94\u7528\u72b6\u6001\u5e94\u8be5\u5982\u4f55\u6539\u53d8\u7684\u666e\u901a JavaScript \u5bf9\u8c61\u3002\u5b83\u5fc5\u987b\u6709\u4e00\u4e2a <code>type<\/code> \u5c5e\u6027\u6765\u63cf\u8ff0 Action \u7684\u7c7b\u578b\uff0c\u53ef\u4ee5\u6709\u4e00\u4e2a <code>payload<\/code> \u5c5e\u6027\u6765\u643a\u5e26\u989d\u5916\u7684\u4fe1\u606f\u3002\u4f8b\u5982\uff1ajavascriptCopy code<code>const action = { type: 'ADD_TODO', payload: { text: 'Learn Redux' } }; <\/code>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a Action\uff0c\u5b83\u63cf\u8ff0\u4e86\u6211\u4eec\u8981\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u5f85\u529e\u4e8b\u9879\u3002<\/li>\n\n\n\n<li><strong>\u53d1\u9001 Action<\/strong>\uff1a\u6211\u4eec\u4f7f\u7528 Store \u7684 <code>dispatch<\/code> \u65b9\u6cd5\u6765\u53d1\u9001 Action\u3002\u4f8b\u5982\uff1ajavascriptCopy code<code>store.dispatch(action); <\/code>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u8c03\u7528 <code>store.dispatch<\/code> \u65b9\u6cd5\uff0c\u5e76\u5c06\u6211\u4eec\u521a\u521a\u521b\u5efa\u7684 Action \u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\u3002<\/li>\n\n\n\n<li><strong>\u5904\u7406 Action<\/strong>\uff1a\u5f53\u6211\u4eec\u901a\u8fc7 <code>dispatch<\/code> \u65b9\u6cd5\u53d1\u9001\u4e00\u4e2a Action \u65f6\uff0cRedux \u4f1a\u5c06\u5f53\u524d\u7684\u72b6\u6001\u548c\u8fd9\u4e2a Action \u4f20\u9012\u7ed9 Reducer\u3002Reducer \u4f1a\u6839\u636e Action \u7684\u7c7b\u578b\u548c\u6570\u636e\u6765\u8ba1\u7b97\u65b0\u7684\u72b6\u6001\u3002\u4f8b\u5982\uff1ajavascriptCopy code<code>function todosReducer(state = [], action) { switch (action.type) { case 'ADD_TODO': return [...state, action.payload.text]; default: return state; } } <\/code>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cReducer \u63a5\u6536\u5f53\u524d\u7684\u72b6\u6001\uff08\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\u7684\u6570\u7ec4\uff09\u548c\u4e00\u4e2a Action\u3002\u7136\u540e\uff0c\u5b83\u4f7f\u7528 <code>switch<\/code> \u8bed\u53e5\u6765\u68c0\u67e5 Action \u7684\u7c7b\u578b\uff1a\u5982\u679c Action \u7684\u7c7b\u578b\u662f <code>'ADD_TODO'<\/code>\uff0c\u90a3\u4e48\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u8fd9\u4e2a\u6570\u7ec4\u5305\u542b\u4e86\u6240\u6709\u65e7\u7684\u5f85\u529e\u4e8b\u9879\u548c\u65b0\u7684\u5f85\u529e\u4e8b\u9879\u3002<\/li>\n\n\n\n<li><strong>\u66f4\u65b0 Store<\/strong>\uff1aReducer \u8ba1\u7b97\u51fa\u65b0\u7684\u72b6\u6001\u540e\uff0c\u8fd9\u4e2a\u65b0\u7684\u72b6\u6001\u4f1a\u88ab\u4fdd\u5b58\u5230 Store \u4e2d\u3002\u7136\u540e\uff0c\u6240\u6709\u8ba2\u9605\u4e86 Store \u7684\u51fd\u6570\u4f1a\u88ab\u8c03\u7528\uff0c\u4f7f\u5f97\u4f60\u7684\u5e94\u7528\u53ef\u4ee5\u54cd\u5e94\u72b6\u6001\u7684\u53d8\u5316\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u5c31\u662f\u5728 Redux \u4e2d\u66f4\u65b0 Store \u7684\u57fa\u672c\u6b65\u9aa4\u3002\u8bb0\u4f4f\uff0c\u6211\u4eec\u4e0d\u80fd\u76f4\u63a5\u4fee\u6539\u72b6\u6001\uff0c\u800c\u662f\u5fc5\u987b\u901a\u8fc7\u53d1\u9001 Action \u548c\u4f7f\u7528 Reducer \u6765\u66f4\u65b0\u72b6\u6001\u3002\u8fd9\u4f7f\u5f97\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u72b6\u6001\u662f\u5982\u4f55\u6539\u53d8\u7684\uff0c\u66f4\u5bb9\u6613\u8fdb\u884c\u8c03\u8bd5\u548c\u6d4b\u8bd5\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u4f7f\u7528react-redux\u5e93ChatGPT<\/p>\n\n\n\n<p>React Redux \u662f Redux \u7684\u5b98\u65b9 React \u7ed1\u5b9a\u5e93\uff0c\u5b83\u5141\u8bb8\u4f60\u5728 React \u5e94\u7528\u4e2d\u66f4\u65b9\u4fbf\u5730\u4f7f\u7528 Redux\u3002\u4f7f\u7528 React Redux\uff0c\u4f60\u53ef\u4ee5\u5728 React \u7ec4\u4ef6\u4e2d\u8bbf\u95ee Store \u4e2d\u7684\u72b6\u6001\uff0c\u53d1\u9001 Action\uff0c\u4ee5\u53ca\u81ea\u52a8\u5904\u7406\u8ba2\u9605\u548c\u53d6\u6d88\u8ba2\u9605\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u5982\u4f55\u5728 React \u5e94\u7528\u4e2d\u4f7f\u7528 React Redux \u7684\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b89\u88c5 React Redux<\/strong>\uff1a\u9996\u5148\uff0c\u4f60\u9700\u8981\u5b89\u88c5 React Redux \u548c Redux\uff1abashCopy code<code>npm install redux react-redux<\/code><\/li>\n\n\n\n<li><strong>\u521b\u5efa Store<\/strong>\uff1a\u4f60\u9700\u8981\u521b\u5efa\u4e00\u4e2a Redux Store\uff0c\u5c31\u50cf\u5728\u4efb\u4f55\u5176\u4ed6 Redux \u5e94\u7528\u4e2d\u4e00\u6837\uff1ajavascriptCopy code<code>import { createStore } from 'redux'; import rootReducer from '.\/reducers'; const store = createStore(rootReducer);<\/code><\/li>\n\n\n\n<li><strong>\u4f7f\u7528 Provider<\/strong>\uff1a<code>Provider<\/code> \u662f\u4e00\u4e2a React \u7ec4\u4ef6\uff0c\u5b83\u4f7f\u5f97 Redux Store \u53ef\u4ee5\u5728\u4f60\u7684 React \u5e94\u7528\u4e2d\u88ab\u8bbf\u95ee\u3002\u4f60\u9700\u8981\u5728\u4f60\u7684\u5e94\u7528\u7684\u6700\u5916\u5c42\u4f7f\u7528 <code>Provider<\/code>\uff0c\u5e76\u5c06\u4f60\u7684 Store \u4f5c\u4e3a\u4e00\u4e2a prop \u4f20\u9012\u7ed9\u5b83\uff1ajsxCopy code<code>import React from 'react'; import ReactDOM from 'react-dom'; import { Provider } from 'react-redux'; import store from '.\/store'; import App from '.\/App'; ReactDOM.render( &lt;Provider store={store}&gt; &lt;App \/&gt; &lt;\/Provider&gt;, document.getElementById('root') );<\/code><\/li>\n\n\n\n<li><strong>\u8fde\u63a5\u7ec4\u4ef6<\/strong>\uff1a\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>connect<\/code> \u9ad8\u9636\u7ec4\u4ef6\u6216 <code>useSelector<\/code> \u548c <code>useDispatch<\/code> Hook \u6765\u5728\u4f60\u7684\u7ec4\u4ef6\u4e2d\u8bbf\u95ee Store \u7684\u72b6\u6001\u548c\u53d1\u9001 Action\u3002\u4f7f\u7528 <code>connect<\/code>\uff1ajsxCopy code<code>import React from 'react'; import { connect } from 'react-redux'; function TodoList({ todos }) { \/\/ ... } const mapStateToProps = state =&gt; ({ todos: state.todos }); export default connect(mapStateToProps)(TodoList); <\/code>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>mapStateToProps<\/code> \u51fd\u6570\u63a5\u6536 Redux Store \u7684\u72b6\u6001\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u7684 props \u5c06\u88ab\u4f20\u9012\u7ed9 <code>TodoList<\/code> \u7ec4\u4ef6\u3002<code>connect<\/code> \u9ad8\u9636\u7ec4\u4ef6\u63a5\u6536 <code>mapStateToProps<\/code> \u51fd\u6570\u548c\u7ec4\u4ef6\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u7ec4\u4ef6\uff0c\u8fd9\u4e2a\u65b0\u7684\u7ec4\u4ef6\u53ef\u4ee5\u8bbf\u95ee Redux Store \u7684\u72b6\u6001\u3002\u4f7f\u7528 <code>useSelector<\/code> \u548c <code>useDispatch<\/code>\uff1ajsxCopy code<code>import React from 'react'; import { useSelector, useDispatch } from 'react-redux'; import { addTodo } from '.\/actions'; function TodoList() { const todos = useSelector(state =&gt; state.todos); const dispatch = useDispatch(); const handleAddTodo = text =&gt; { dispatch(addTodo(text)); }; \/\/ ... } <\/code>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>useSelector<\/code> Hook \u63a5\u6536\u4e00\u4e2a\u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u63a5\u6536 Redux Store \u7684\u72b6\u6001\uff0c\u5e76\u8fd4\u56de\u6211\u4eec\u9700\u8981\u7684\u90e8\u5206\u72b6\u6001\u3002<code>useDispatch<\/code> Hook \u8fd4\u56de Redux Store \u7684 <code>dispatch<\/code> \u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u53d1\u9001 Action\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0cReact Redux \u63d0\u4f9b\u4e86\u5728 React \u5e94\u7528\u4e2d\u4f7f\u7528 Redux \u7684\u4e00\u79cd\u66f4\u65b9\u4fbf\u7684\u65b9\u6cd5\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>Provider<\/code> \u7ec4\u4ef6\u6765\u8ba9\u4f60\u7684\u6574\u4e2a\u5e94\u7528\u53ef\u4ee5\u8bbf\u95ee Redux Store\uff0c\u4f7f\u7528 <code>connect<\/code> \u9ad8\u9636\u7ec4\u4ef6\u6216 <code>useSelector<\/code> \u548c <code>useDispatch<\/code> Hook \u6765<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u4f7f\u7528Provider\u7ec4\u4ef6ChatGPT<\/p>\n\n\n\n<p><code>Provider<\/code> \u662f\u4e00\u4e2a React \u7ec4\u4ef6\uff0c\u5b83\u7531 <code>react-redux<\/code> \u5e93\u63d0\u4f9b\uff0c\u7528\u4e8e\u5728\u4f60\u7684 React \u5e94\u7528\u4e2d\u4f7f Redux store \u53ef\u7528\u3002\u4f60\u9700\u8981\u5728\u4f60\u7684\u5e94\u7528\u7684\u6700\u5916\u5c42\u4f7f\u7528 <code>Provider<\/code>\uff0c\u5e76\u5c06\u4f60\u7684 Redux store \u4f5c\u4e3a\u4e00\u4e2a prop \u4f20\u9012\u7ed9\u5b83\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528 <code>Provider<\/code> \u7684\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5bfc\u5165 Provider<\/strong>\uff1a\u9996\u5148\uff0c\u4f60\u9700\u8981\u5bfc\u5165 <code>Provider<\/code> \u7ec4\u4ef6\uff1ajavascriptCopy code<code>import { Provider } from 'react-redux';<\/code><\/li>\n\n\n\n<li><strong>\u521b\u5efa Redux store<\/strong>\uff1a\u4f60\u9700\u8981\u521b\u5efa\u4e00\u4e2a Redux store\uff0c\u5c31\u50cf\u5728\u4efb\u4f55\u5176\u4ed6 Redux \u5e94\u7528\u4e2d\u4e00\u6837\uff1ajavascriptCopy code<code>import { createStore } from 'redux'; import rootReducer from '.\/reducers'; const store = createStore(rootReducer);<\/code><\/li>\n\n\n\n<li><strong>\u4f7f\u7528 Provider<\/strong>\uff1a\u7136\u540e\uff0c\u4f60\u53ef\u4ee5\u5728\u4f60\u7684\u5e94\u7528\u7684\u6700\u5916\u5c42\u4f7f\u7528 <code>Provider<\/code>\uff0c\u5e76\u5c06\u4f60\u7684 Redux store \u4f5c\u4e3a\u4e00\u4e2a prop \u4f20\u9012\u7ed9\u5b83\uff1ajsxCopy code<code>import React from 'react'; import ReactDOM from 'react-dom'; import { Provider } from 'react-redux'; import store from '.\/store'; import App from '.\/App'; ReactDOM.render( &lt;Provider store={store}&gt; &lt;App \/&gt; &lt;\/Provider&gt;, document.getElementById('root') );<\/code><\/li>\n<\/ol>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u5bfc\u5165 <code>Provider<\/code> \u7ec4\u4ef6\u548c\u6211\u4eec\u7684 Redux store\u3002\u7136\u540e\uff0c\u6211\u4eec\u5728 <code>ReactDOM.render<\/code> \u65b9\u6cd5\u4e2d\u4f7f\u7528 <code>Provider<\/code>\u3002\u6211\u4eec\u5c06 <code>Provider<\/code> \u653e\u5728 <code>App<\/code> \u7ec4\u4ef6\u7684\u5916\u9762\uff0c\u5e76\u5c06\u6211\u4eec\u7684 Redux store \u4f5c\u4e3a\u4e00\u4e2a prop \u4f20\u9012\u7ed9\u5b83\u3002\u8fd9\u6837\uff0c\u6211\u4eec\u7684\u6574\u4e2a\u5e94\u7528\u5c31\u53ef\u4ee5\u8bbf\u95ee\u5230 Redux store \u4e86\u3002<\/p>\n\n\n\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u7684 React \u7ec4\u4ef6\u53ef\u4ee5\u4f7f\u7528 <code>connect<\/code> \u9ad8\u9636\u7ec4\u4ef6\u6216 <code>useSelector<\/code> \u548c <code>useDispatch<\/code> Hook \u6765\u8bbf\u95ee Redux store \u7684\u72b6\u6001\u548c dispatch \u51fd\u6570\u3002<\/p>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0c<code>Provider<\/code> \u7ec4\u4ef6\u662f\u8fde\u63a5 React \u548c Redux \u7684\u5173\u952e\u3002\u5b83\u4f7f\u4f60\u7684 Redux store \u5728\u4f60\u7684\u6574\u4e2a React \u5e94\u7528\u4e2d\u53ef\u7528\uff0c\u8fd9\u6837\u4f60\u7684 React \u7ec4\u4ef6\u5c31\u53ef\u4ee5\u4f7f\u7528 Redux \u6765\u7ba1\u7406\u72b6\u6001\u4e86\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u4f7f\u7528connect\u51fd\u6570ChatGPT<\/p>\n\n\n\n<p><code>connect<\/code> \u662f React Redux \u5e93\u4e2d\u7684\u4e00\u4e2a\u51fd\u6570\uff0c\u5b83\u7528\u4e8e\u8fde\u63a5 Redux Store \u548c React \u7ec4\u4ef6\uff0c\u4f7f\u5f97 React \u7ec4\u4ef6\u80fd\u591f\u8bbf\u95ee Store \u4e2d\u7684\u72b6\u6001\uff0c\u4ee5\u53ca\u80fd\u591f\u53d1\u9001 Action\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u5982\u4f55\u4f7f\u7528 <code>connect<\/code> \u7684\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5bfc\u5165 connect \u51fd\u6570<\/strong>\uff1a\u9996\u5148\uff0c\u4f60\u9700\u8981\u4ece <code>react-redux<\/code> \u5e93\u4e2d\u5bfc\u5165 <code>connect<\/code> \u51fd\u6570\uff1ajavascriptCopy code<code>import { connect } from 'react-redux';<\/code><\/li>\n\n\n\n<li><strong>\u5b9a\u4e49 mapStateToProps \u548c mapDispatchToProps<\/strong>\uff1a<code>mapStateToProps<\/code> \u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u5b83\u63a5\u6536 Redux Store \u7684\u72b6\u6001\u4f5c\u4e3a\u53c2\u6570\uff0c\u7136\u540e\u8fd4\u56de\u4e00\u4e2a\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u7684\u5c5e\u6027\u5c06\u4f5c\u4e3a props \u4f20\u9012\u7ed9\u4f60\u7684\u7ec4\u4ef6\u3002<code>mapDispatchToProps<\/code> \u4e5f\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u5b83\u63a5\u6536 <code>dispatch<\/code> \u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u7136\u540e\u8fd4\u56de\u4e00\u4e2a\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u7684\u65b9\u6cd5\u5c06\u4f5c\u4e3a props \u4f20\u9012\u7ed9\u4f60\u7684\u7ec4\u4ef6\uff0c\u5e76\u4e14\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u53d1\u9001 Action\u3002javascriptCopy code<code>const mapStateToProps = state =&gt; ({ todos: state.todos }); const mapDispatchToProps = dispatch =&gt; ({ addTodo: text =&gt; dispatch({ type: 'ADD_TODO', text }) });<\/code><\/li>\n\n\n\n<li><strong>\u4f7f\u7528 connect \u51fd\u6570<\/strong>\uff1a<code>connect<\/code> \u51fd\u6570\u63a5\u6536 <code>mapStateToProps<\/code> \u548c <code>mapDispatchToProps<\/code> \u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\u3002\u7136\u540e\uff0c\u4f60\u53ef\u4ee5\u8c03\u7528\u8fd9\u4e2a\u65b0\u7684\u51fd\u6570\uff0c\u5e76\u5c06\u4f60\u7684\u7ec4\u4ef6\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\uff0c\u8fd9\u6837\u4f60\u7684\u7ec4\u4ef6\u5c31\u88ab\u8fde\u63a5\u5230 Redux Store \u4e86\u3002javascriptCopy code<code>import React from 'react'; function TodoList({ todos, addTodo }) { \/\/ ... } export default connect(mapStateToProps, mapDispatchToProps)(TodoList);<\/code><\/li>\n<\/ol>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u5b9a\u4e49\u4e86 <code>mapStateToProps<\/code> \u548c <code>mapDispatchToProps<\/code> \u51fd\u6570\uff0c\u7136\u540e\u4f7f\u7528 <code>connect<\/code> \u51fd\u6570\u5c06\u5b83\u4eec\u548c <code>TodoList<\/code> \u7ec4\u4ef6\u8fde\u63a5\u8d77\u6765\u3002\u73b0\u5728\uff0c<code>TodoList<\/code> \u7ec4\u4ef6\u53ef\u4ee5\u901a\u8fc7 props \u8bbf\u95ee\u5230 Redux Store \u7684\u72b6\u6001\uff08todos\uff09\u548c <code>dispatch<\/code> \u65b9\u6cd5\uff08addTodo\uff09\u3002<\/p>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0c<code>connect<\/code> \u51fd\u6570\u662f\u4e00\u4e2a\u9ad8\u9636\u51fd\u6570\uff0c\u5b83\u63a5\u6536\u4e24\u4e2a\u53c2\u6570\uff1a<code>mapStateToProps<\/code> \u548c <code>mapDispatchToProps<\/code>\uff0c\u7136\u540e\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\uff0c\u8fd9\u4e2a\u65b0\u7684\u51fd\u6570\u53ef\u4ee5\u63a5\u6536\u4e00\u4e2a React \u7ec4\u4ef6\u4f5c\u4e3a\u53c2\u6570\uff0c\u5c06\u5b83\u4e0e Redux Store \u8fde\u63a5\u8d77\u6765\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8be6\u7ec6\u89e3\u91ca\u4ec0\u4e48\u662fRedux\u4e2d\u95f4\u4ef6ChatGPT<\/p>\n\n\n\n<p>Redux \u4e2d\u95f4\u4ef6\u662f\u4e00\u79cd\u6269\u5c55 Redux \u7684\u65b9\u5f0f\uff0c\u4f7f\u5f97\u4f60\u80fd\u591f\u81ea\u5b9a\u4e49\u5728\u4e00\u4e2a Action \u88ab\u53d1\u9001\u5230 Store \u7684\u8fc7\u7a0b\u4e2d\u8981\u6267\u884c\u7684\u903b\u8f91\u3002Redux \u4e2d\u95f4\u4ef6\u4f4d\u4e8e Action \u88ab\u53d1\u9001\u4e0e Reducer \u63a5\u6536\u5230 Action \u4e4b\u95f4\u3002<\/p>\n\n\n\n<p>Redux \u4e2d\u95f4\u4ef6\u5728 Redux \u4e2d\u7684\u4f4d\u7f6e\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">rustCopy code<code>action -&gt; middleware -&gt; reducer\n<\/code><\/pre>\n\n\n\n<p>\u5f53\u4f60\u8c03\u7528 <code>store.dispatch(action)<\/code> \u53d1\u9001\u4e00\u4e2a Action \u65f6\uff0c\u8fd9\u4e2a Action \u4f1a\u5148\u88ab\u4f20\u9012\u7ed9\u4e2d\u95f4\u4ef6\u3002\u4e2d\u95f4\u4ef6\u53ef\u4ee5\u505a\u5f88\u591a\u4e8b\u60c5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b83\u53ef\u4ee5\u8bb0\u5f55 Action \u548c\u72b6\u6001\u7684\u53d8\u5316\uff0c\u8fd9\u5bf9\u4e8e\u8c03\u8bd5\u548c\u5f00\u53d1\u662f\u975e\u5e38\u6709\u7528\u7684\u3002<\/li>\n\n\n\n<li>\u5b83\u53ef\u4ee5\u5728 Action \u5230\u8fbe Reducer \u4e4b\u524d\u4fee\u6539 Action\u3002<\/li>\n\n\n\n<li>\u5b83\u53ef\u4ee5\u5728 Action \u5230\u8fbe Reducer \u4e4b\u524d\u963b\u6b62 Action\u3002<\/li>\n\n\n\n<li>\u5b83\u53ef\u4ee5\u5728 Action \u5230\u8fbe Reducer \u4e4b\u524d\u53d1\u9001\u989d\u5916\u7684 Action\u3002<\/li>\n\n\n\n<li>\u5b83\u53ef\u4ee5\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\uff0c\u4f8b\u5982 API \u8c03\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4e00\u4e2a\u4e2d\u95f4\u4ef6\u5728\u6280\u672f\u4e0a\u5c31\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u63a5\u6536\u4e00\u4e2a &#8220;next&#8221; \u4e2d\u95f4\u4ef6\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\u3002\u8fd9\u4e2a\u65b0\u7684\u51fd\u6570\u63a5\u6536\u4e00\u4e2a Action\uff0c\u5e76\u53ef\u4ee5\u8c03\u7528 <code>next(action)<\/code> \u6765\u5c06 Action \u4f20\u9012\u7ed9\u4e0b\u4e00\u4e2a\u4e2d\u95f4\u4ef6\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4e2d\u95f4\u4ef6\u7684\u57fa\u672c\u7ed3\u6784\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>function myMiddleware(next) {\n    return function(action) {\n        \/\/ \u5728 Action \u88ab\u53d1\u9001\u5230 Reducer \u4e4b\u524d\u6267\u884c\u7684\u4ee3\u7801...\n\n        next(action);\n\n        \/\/ \u5728 Action \u88ab\u53d1\u9001\u5230 Reducer \u4e4b\u540e\u6267\u884c\u7684\u4ee3\u7801...\n    };\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>myMiddleware<\/code> \u51fd\u6570\u63a5\u6536\u4e0b\u4e00\u4e2a\u4e2d\u95f4\u4ef6 <code>next<\/code>\uff0c\u7136\u540e\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\u3002\u8fd9\u4e2a\u65b0\u7684\u51fd\u6570\u63a5\u6536\u4e00\u4e2a Action\uff0c\u7136\u540e\u5b83\u53ef\u4ee5\u5728 Action \u88ab\u53d1\u9001\u5230 Reducer \u4e4b\u524d\u548c\u4e4b\u540e\u6267\u884c\u4e00\u4e9b\u4ee3\u7801\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u4f7f\u7528\u4e2d\u95f4\u4ef6\uff0c\u4f60\u9700\u8981\u5728\u521b\u5efa Store \u65f6\u4f7f\u7528 Redux \u7684 <code>applyMiddleware<\/code> \u51fd\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { createStore, applyMiddleware } from 'redux';\nimport myMiddleware from '.\/myMiddleware';\nimport rootReducer from '.\/reducers';\n\nconst store = createStore(\n    rootReducer,\n    applyMiddleware(myMiddleware)\n);\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5bfc\u5165 <code>applyMiddleware<\/code> \u51fd\u6570\u548c\u6211\u4eec\u7684\u4e2d\u95f4\u4ef6\uff0c\u7136\u540e\u5728\u8c03\u7528 <code>createStore<\/code> \u65f6\u4f7f\u7528 <code>applyMiddleware<\/code> \u51fd\u6570\u3002<\/p>\n\n\n\n<p>Redux \u8fd8\u6709\u4e00\u4e9b\u5e38\u7528\u7684\u4e2d\u95f4\u4ef6\u5e93\uff0c\u4f8b\u5982 <code>redux-thunk<\/code>\uff08\u7528\u4e8e\u5904\u7406\u5f02\u6b65 Action\uff09\u548c <code>redux-logger<\/code>\uff08\u7528\u4e8e\u5728\u63a7\u5236\u53f0\u8bb0\u5f55 Action \u548c\u72b6\u6001\u7684\u53d8\u5316\uff09\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u4f7f\u7528Redux Thunk\u8fdb\u884c\u5f02\u6b65\u64cd\u4f5cChatGPT<\/p>\n\n\n\n<p>Redux Thunk \u662f\u4e00\u4e2a\u5141\u8bb8\u4f60\u5728 Redux \u4e2d\u8fdb\u884c\u5f02\u6b65\u64cd\u4f5c\u7684\u4e2d\u95f4\u4ef6\u3002\u5728 Redux \u4e2d\uff0c\u901a\u5e38\u6211\u4eec\u53d1\u9001\u7684\u662f\u4e00\u4e2a\u5305\u542b\u7c7b\u578b\u548c\u6709\u6548\u8f7d\u8377\u7684\u5bf9\u8c61\uff0c\u8fd9\u88ab\u79f0\u4e3a Action\u3002\u4f46\u662f\uff0c\u5f53\u4f60\u4f7f\u7528\u4e86 Redux Thunk\uff0c\u4f60\u53ef\u4ee5\u53d1\u9001\u4e00\u4e2a\u51fd\u6570\u4f5c\u4e3a Action\uff0c\u8fd9\u4e2a\u51fd\u6570\u88ab\u79f0\u4e3a Thunk\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528 Redux Thunk \u8fdb\u884c\u5f02\u6b65\u64cd\u4f5c\u7684\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b89\u88c5 Redux Thunk<\/strong>\uff1a\u9996\u5148\uff0c\u4f60\u9700\u8981\u5b89\u88c5 Redux Thunk\uff1abashCopy code<code>npm install redux-thunk<\/code><\/li>\n\n\n\n<li><strong>\u5e94\u7528 Redux Thunk \u4e2d\u95f4\u4ef6<\/strong>\uff1a\u4f60\u9700\u8981\u5728\u521b\u5efa Redux Store \u65f6\u5e94\u7528 Redux Thunk \u4e2d\u95f4\u4ef6\uff1ajavascriptCopy code<code>import { createStore, applyMiddleware } from 'redux'; import thunk from 'redux-thunk'; import rootReducer from '.\/reducers'; const store = createStore( rootReducer, applyMiddleware(thunk) );<\/code><\/li>\n\n\n\n<li><strong>\u521b\u5efa Thunk<\/strong>\uff1aThunk \u662f\u4e00\u4e2a\u8fd4\u56de\u51fd\u6570\u7684\u51fd\u6570\u3002\u8fd9\u4e2a\u8fd4\u56de\u7684\u51fd\u6570\u63a5\u6536 <code>dispatch<\/code> \u548c <code>getState<\/code> \u4f5c\u4e3a\u53c2\u6570\uff0c\u4f60\u53ef\u4ee5\u5728\u8fd9\u4e2a\u51fd\u6570\u4e2d\u8fdb\u884c\u5f02\u6b65\u64cd\u4f5c\uff0c\u7136\u540e\u6839\u636e\u5f02\u6b65\u64cd\u4f5c\u7684\u7ed3\u679c\u53d1\u9001 Action\uff1ajavascriptCopy code<code>function fetchTodos() { return function(dispatch, getState) { dispatch({ type: 'FETCH_TODOS_START' }); fetch('https:\/\/example.com\/todos') .then(response =&gt; response.json()) .then(todos =&gt; { dispatch({ type: 'FETCH_TODOS_SUCCESS', todos }); }) .catch(error =&gt; { dispatch({ type: 'FETCH_TODOS_ERROR', error }); }); }; } <\/code>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>fetchTodos<\/code> \u662f\u4e00\u4e2a Thunk\uff0c\u5b83\u8fd4\u56de\u4e00\u4e2a\u51fd\u6570\u3002\u8fd9\u4e2a\u8fd4\u56de\u7684\u51fd\u6570\u9996\u5148\u53d1\u9001\u4e00\u4e2a <code>FETCH_TODOS_START<\/code> Action\uff0c\u7136\u540e\u4f7f\u7528 <code>fetch<\/code> API \u83b7\u53d6 todos\u3002\u5f53 <code>fetch<\/code> API \u6210\u529f\u83b7\u53d6\u5230 todos \u65f6\uff0c\u5b83\u53d1\u9001\u4e00\u4e2a <code>FETCH_TODOS_SUCCESS<\/code> Action\uff0c\u5f53 <code>fetch<\/code> API \u83b7\u53d6 todos \u5931\u8d25\u65f6\uff0c\u5b83\u53d1\u9001\u4e00\u4e2a <code>FETCH_TODOS_ERROR<\/code> Action\u3002<\/li>\n\n\n\n<li><strong>\u53d1\u9001 Thunk<\/strong>\uff1a\u4f60\u53ef\u4ee5\u50cf\u53d1\u9001\u5176\u4ed6 Action \u4e00\u6837\u53d1\u9001 Thunk\uff1ajavascriptCopy code<code>store.dispatch(fetchTodos()); <\/code>\u5f53\u4f60\u53d1\u9001\u4e00\u4e2a Thunk \u65f6\uff0cRedux Thunk \u4e2d\u95f4\u4ef6\u4f1a\u8c03\u7528\u8fd9\u4e2a Thunk\uff0c\u5e76\u5c06 <code>dispatch<\/code> \u548c <code>getState<\/code> \u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0cRedux Thunk \u662f\u4e00\u79cd\u5728 Redux \u4e2d\u8fdb\u884c\u5f02\u6b65\u64cd\u4f5c\u7684\u65b9\u5f0f\u3002\u4f60\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a Thunk\uff0c\u7136\u540e\u5728\u8fd9\u4e2a Thunk \u4e2d\u8fdb\u884c\u5f02\u6b65\u64cd\u4f5c\uff0c\u7136\u540e\u6839\u636e\u5f02\u6b65\u64cd\u4f5c\u7684\u7ed3\u679c\u53d1\u9001 Action\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u521b\u5efa\u81ea\u5b9a\u4e49\u4e2d\u95f4\u4ef6ChatGPT<\/p>\n\n\n\n<p>\u521b\u5efa\u81ea\u5b9a\u4e49 Redux \u4e2d\u95f4\u4ef6\u6d89\u53ca\u5230\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u9075\u5faa Redux \u4e2d\u95f4\u4ef6\u7684\u7279\u5b9a\u683c\u5f0f\u3002\u5728\u57fa\u672c\u7684\u5c42\u9762\u4e0a\uff0c\u4e2d\u95f4\u4ef6\u662f\u4e00\u4e2a\u5d4c\u5957\u7684\u51fd\u6570\uff0c\u5b83\u63a5\u6536 &#8220;next&#8221; \u4e2d\u95f4\u4ef6\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u63a5\u6536 &#8220;action&#8221; \u4f5c\u4e3a\u53c2\u6570\u7684\u65b0\u51fd\u6570\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u521b\u5efa\u81ea\u5b9a\u4e49 Redux \u4e2d\u95f4\u4ef6\u7684\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b9a\u4e49\u4e2d\u95f4\u4ef6\u51fd\u6570<\/strong>\uff1a\u9996\u5148\uff0c\u4f60\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u63a5\u6536 &#8220;next&#8221; \u4e2d\u95f4\u4ef6\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u63a5\u6536 &#8220;action&#8221; \u4f5c\u4e3a\u53c2\u6570\u7684\u65b0\u51fd\u6570\uff1ajavascriptCopy code<code>function myMiddleware({ dispatch, getState }) { return function(next) { return function(action) { \/\/ \u5728\u8fd9\u91cc\u7f16\u5199\u4f60\u7684\u4e2d\u95f4\u4ef6\u903b\u8f91... return next(action); }; }; } <\/code>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>myMiddleware<\/code> \u662f\u4e00\u4e2a\u4e2d\u95f4\u4ef6\u3002\u5b83\u63a5\u6536\u4e00\u4e2a\u5305\u542b <code>dispatch<\/code> \u548c <code>getState<\/code> \u65b9\u6cd5\u7684\u5bf9\u8c61\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\u3002\u8fd9\u4e2a\u65b0\u7684\u51fd\u6570\u63a5\u6536 &#8220;next&#8221; \u4e2d\u95f4\u4ef6\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\u3002\u8fd9\u4e2a\u65b0\u7684\u51fd\u6570\u63a5\u6536\u4e00\u4e2a &#8220;action&#8221;\uff0c\u5e76\u5728 &#8220;action&#8221; \u88ab\u53d1\u9001\u5230\u4e0b\u4e00\u4e2a\u4e2d\u95f4\u4ef6\u6216\u8005 reducer \u4e4b\u524d\u6267\u884c\u4e00\u4e9b\u903b\u8f91\u3002\u6ce8\u610f\uff0c\u4f60\u53ef\u4ee5\u5728\u8fd9\u4e2a\u51fd\u6570\u4e2d\u6267\u884c\u4efb\u4f55\u903b\u8f91\uff0c\u4f8b\u5982\u4fee\u6539 action\uff0c\u6839\u636e action \u53d1\u9001\u989d\u5916\u7684 action\uff0c\u6216\u8005\u963b\u6b62 action \u88ab\u53d1\u9001\u5230\u4e0b\u4e00\u4e2a\u4e2d\u95f4\u4ef6\u6216\u8005 reducer\u3002<\/li>\n\n\n\n<li><strong>\u5e94\u7528\u4e2d\u95f4\u4ef6<\/strong>\uff1a\u7136\u540e\uff0c\u4f60\u9700\u8981\u5728\u521b\u5efa Redux store \u65f6\u5e94\u7528\u4f60\u7684\u4e2d\u95f4\u4ef6\uff1ajavascriptCopy code<code>import { createStore, applyMiddleware } from 'redux'; import myMiddleware from '.\/myMiddleware'; import rootReducer from '.\/reducers'; const store = createStore( rootReducer, applyMiddleware(myMiddleware) ); <\/code>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5bfc\u5165\u4e86 <code>createStore<\/code>\uff0c<code>applyMiddleware<\/code> \u548c\u6211\u4eec\u7684\u4e2d\u95f4\u4ef6\uff0c\u7136\u540e\u5728\u8c03\u7528 <code>createStore<\/code> \u65f6\u4f7f\u7528 <code>applyMiddleware<\/code> \u5c06\u6211\u4eec\u7684\u4e2d\u95f4\u4ef6\u5e94\u7528\u5230 Redux store\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0c\u521b\u5efa\u81ea\u5b9a\u4e49 Redux \u4e2d\u95f4\u4ef6\u9700\u8981\u4f60\u5b9a\u4e49\u4e00\u4e2a\u9075\u5faa\u7279\u5b9a\u683c\u5f0f\u7684\u51fd\u6570\uff0c\u5e76\u5728\u521b\u5efa Redux store \u65f6\u5e94\u7528\u8fd9\u4e2a\u51fd\u6570\u3002\u4f60\u53ef\u4ee5\u5728\u8fd9\u4e2a\u51fd\u6570\u4e2d\u7f16\u5199\u4efb\u4f55\u903b\u8f91\uff0c\u6765\u63a7\u5236 action \u5728\u88ab\u53d1\u9001\u5230 reducer \u4e4b\u524d\u7684\u884c\u4e3a\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5b89\u88c5\u548c\u914d\u7f6eRedux DevToolsChatGPT<\/p>\n\n\n\n<p>Redux DevTools \u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5f00\u53d1\u8005\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3\u548c\u8c03\u8bd5\u4f60\u7684 Redux \u5e94\u7528\u3002\u4ee5\u4e0b\u662f\u5b89\u88c5\u548c\u914d\u7f6e Redux DevTools \u7684\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b89\u88c5 Redux DevTools \u6269\u5c55<\/strong>\uff1a\u9996\u5148\uff0c\u4f60\u9700\u8981\u5728\u4f60\u7684\u6d4f\u89c8\u5668\u4e2d\u5b89\u88c5 Redux DevTools \u6269\u5c55\u3002\u4f60\u53ef\u4ee5\u5728 Chrome Web Store\u3001Firefox Add-ons \u7f51\u7ad9\u6216\u8005\u5176\u4ed6\u6d4f\u89c8\u5668\u7684\u7c7b\u4f3c\u7f51\u7ad9\u4e0a\u627e\u5230\u5e76\u5b89\u88c5\u5b83\u3002<\/li>\n\n\n\n<li><strong>\u914d\u7f6e Redux Store<\/strong>\uff1a\u7136\u540e\uff0c\u4f60\u9700\u8981\u5728\u521b\u5efa Redux Store \u65f6\u914d\u7f6e Redux DevTools\uff1ajavascriptCopy code<code>import { createStore, applyMiddleware, compose } from 'redux'; import rootReducer from '.\/reducers'; const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose; const store = createStore( rootReducer, composeEnhancers(applyMiddleware(\/* \u4f60\u7684\u4e2d\u95f4\u4ef6 *\/)) ); <\/code>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u68c0\u67e5 <code>window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__<\/code> \u662f\u5426\u5b58\u5728\u3002\u5982\u679c\u5b58\u5728\uff0c\u6211\u4eec\u4f7f\u7528\u5b83\u6765\u521b\u5efa Redux store\uff0c\u5426\u5219\u6211\u4eec\u4f7f\u7528 Redux \u7684 <code>compose<\/code> \u51fd\u6570\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>composeEnhancers<\/code> \u548c <code>applyMiddleware<\/code> \u521b\u5efa Redux store\u3002<code>window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__<\/code> \u662f Redux DevTools \u6269\u5c55\u6dfb\u52a0\u5230 <code>window<\/code> \u5bf9\u8c61\u7684\u4e00\u4e2a\u5c5e\u6027\u3002\u5f53\u6269\u5c55\u88ab\u5b89\u88c5\u5e76\u542f\u7528\u65f6\uff0c\u5b83\u4f1a\u5b58\u5728\uff0c\u5426\u5219\u5b83\u4e0d\u4f1a\u5b58\u5728\u3002<\/li>\n\n\n\n<li><strong>\u4f7f\u7528 Redux DevTools<\/strong>\uff1a\u73b0\u5728\uff0c\u4f60\u53ef\u4ee5\u6253\u5f00\u4f60\u7684\u6d4f\u89c8\u5668\u7684\u5f00\u53d1\u8005\u5de5\u5177\uff0c\u4f60\u5e94\u8be5\u80fd\u770b\u5230 Redux DevTools \u7684\u6807\u7b7e\u3002\u4f60\u53ef\u4ee5\u70b9\u51fb\u8fd9\u4e2a\u6807\u7b7e\u6765\u67e5\u770b\u4f60\u7684 Redux \u5e94\u7528\u7684\u72b6\u6001\u548c action\uff0c\u4f60\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5b83\u7684\u8bb8\u591a\u7279\u6027\uff0c\u4f8b\u5982\u65f6\u95f4\u65c5\u884c\u8c03\u8bd5\u548c\u5bfc\u5165\/\u5bfc\u51fa\u72b6\u6001\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0c\u914d\u7f6e Redux DevTools \u53ea\u9700\u8981\u51e0\u4e2a\u7b80\u5355\u7684\u6b65\u9aa4\uff1a\u5b89\u88c5 Redux DevTools \u6269\u5c55\uff0c\u7136\u540e\u5728\u521b\u5efa Redux Store \u65f6\u914d\u7f6e Redux DevTools\u3002\u7136\u540e\uff0c\u4f60\u5c31\u53ef\u4ee5\u5728\u4f60\u7684\u6d4f\u89c8\u5668\u7684\u5f00\u53d1\u8005\u5de5\u5177\u4e2d\u4f7f\u7528 Redux DevTools \u4e86\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4f7f\u7528Redux DevTools\u8fdb\u884c\u8c03\u8bd5ChatGPT<\/p>\n\n\n\n<p>Redux DevTools \u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u5b83\u4e3a\u8c03\u8bd5 Redux \u5e94\u7528\u63d0\u4f9b\u4e86\u4e00\u79cd\u53ef\u89c6\u5316\u7684\u65b9\u5f0f\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 Redux DevTools \u8fdb\u884c\u8c03\u8bd5\u7684\u4e00\u4e9b\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u67e5\u770b\u72b6\u6001<\/strong>\uff1a\u5728 Redux DevTools \u4e2d\uff0c\u4f60\u53ef\u4ee5\u770b\u5230\u4f60\u7684 Redux \u5e94\u7528\u7684\u5f53\u524d\u72b6\u6001\u3002\u4f60\u7684\u72b6\u6001\u4f1a\u88ab\u663e\u793a\u4e3a\u4e00\u4e2a\u53ef\u4ee5\u5c55\u5f00\u7684 JSON \u5bf9\u8c61\uff0c\u4f60\u53ef\u4ee5\u67e5\u770b\u6bcf\u4e2a\u90e8\u5206\u7684\u503c\u3002<\/li>\n\n\n\n<li><strong>\u67e5\u770b Action<\/strong>\uff1a\u6bcf\u5f53\u4f60\u7684\u5e94\u7528\u53d1\u9001\u4e00\u4e2a Action\uff0cRedux DevTools \u90fd\u4f1a\u5728 &#8220;Action&#8221; \u9762\u677f\u4e2d\u663e\u793a\u8fd9\u4e2a Action\u3002\u4f60\u53ef\u4ee5\u770b\u5230 Action \u7684\u7c7b\u578b\u548c\u6709\u6548\u8f7d\u8377\uff0c\u4f60\u4e5f\u53ef\u4ee5\u770b\u5230\u53d1\u9001\u8fd9\u4e2a Action \u4e4b\u540e\u7684\u65b0\u72b6\u6001\u3002<\/li>\n\n\n\n<li><strong>\u65f6\u95f4\u65c5\u884c\u8c03\u8bd5<\/strong>\uff1aRedux DevTools \u63d0\u4f9b\u4e86\u4e00\u4e2a\u53eb\u505a &#8220;\u65f6\u95f4\u65c5\u884c\u8c03\u8bd5&#8221; \u7684\u7279\u6027\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u6ed1\u5757\u6765\u56de\u6eaf\u4f60\u7684\u5e94\u7528\u7684\u72b6\u6001\u548c Action\uff0c\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u4f60\u7406\u89e3\u4f60\u7684\u5e94\u7528\u662f\u5982\u4f55\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\u800c\u53d8\u5316\u7684\u3002<\/li>\n\n\n\n<li><strong>\u91cd\u653e Action<\/strong>\uff1a\u5982\u679c\u4f60\u5728\u65f6\u95f4\u65c5\u884c\u6a21\u5f0f\u4e2d\u56de\u6eaf\u5230\u4e00\u4e2a\u65e9\u671f\u7684\u72b6\u6001\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 &#8220;\u91cd\u653e&#8221; \u6309\u94ae\u6765\u91cd\u65b0\u53d1\u9001\u6240\u6709\u7684 Action\u3002\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u4f60\u590d\u73b0\u548c\u7406\u89e3\u4e00\u4e2a\u590d\u6742\u7684 bug\u3002<\/li>\n\n\n\n<li><strong>\u5bfc\u5165\u548c\u5bfc\u51fa\u72b6\u6001<\/strong>\uff1aRedux DevTools \u5141\u8bb8\u4f60\u5bfc\u51fa\u4f60\u7684\u5e94\u7528\u7684\u5f53\u524d\u72b6\u6001\uff0c\u7136\u540e\u5728\u53e6\u4e00\u4e2a\u4f1a\u8bdd\u4e2d\u6216\u8005\u53e6\u4e00\u4e2a\u8bbe\u5907\u4e2d\u5bfc\u5165\u8fd9\u4e2a\u72b6\u6001\u3002\u8fd9\u5bf9\u4e8e\u5171\u4eab bug \u548c\u590d\u73b0\u95ee\u9898\u975e\u5e38\u6709\u7528\u3002<\/li>\n\n\n\n<li><strong>\u5206\u6790\u6027\u80fd<\/strong>\uff1aRedux DevTools \u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5206\u6790\u5668\uff0c\u4f60\u53ef\u4ee5\u7528\u5b83\u6765\u67e5\u770b\u4f60\u7684 Action \u548c Reducer \u7684\u6027\u80fd\u3002\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u4f60\u627e\u51fa\u6f5c\u5728\u7684\u6027\u80fd\u95ee\u9898\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u8981\u5f00\u59cb\u4f7f\u7528 Redux DevTools \u8fdb\u884c\u8c03\u8bd5\uff0c\u4f60\u53ea\u9700\u8981\u6253\u5f00\u4f60\u7684\u6d4f\u89c8\u5668\u7684\u5f00\u53d1\u8005\u5de5\u5177\uff0c\u7136\u540e\u70b9\u51fb Redux DevTools \u7684\u6807\u7b7e\u3002\u7136\u540e\uff0c\u4f60\u5c31\u53ef\u4ee5\u5f00\u59cb\u4f7f\u7528\u4e0a\u8ff0\u7684\u529f\u80fd\u4e86\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u901a\u8fc7\u5b9e\u4f8b\u89e3\u91ca\u5982\u4f55\u8bbe\u8ba1Action\u548cReducerChatGPT<\/p>\n\n\n\n<p>\u8bbe\u8ba1 Action \u548c Reducer \u662f\u521b\u5efa Redux \u5e94\u7528\u7684\u5173\u952e\u6b65\u9aa4\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u8bbe\u8ba1 Action \u548c Reducer\u3002<\/p>\n\n\n\n<p>\u5047\u8bbe\u6211\u4eec\u6b63\u5728\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u5f85\u529e\u4e8b\u9879\u5e94\u7528\uff0c\u6211\u4eec\u9700\u8981\u5728\u5e94\u7528\u4e2d\u6dfb\u52a0\u548c\u5220\u9664\u5f85\u529e\u4e8b\u9879\u3002<\/p>\n\n\n\n<p><strong>\u8bbe\u8ba1 Action<\/strong><\/p>\n\n\n\n<p>\u5728 Redux \u4e2d\uff0cAction \u662f\u4e00\u4e2a\u5305\u542b <code>type<\/code> \u5b57\u6bb5\u7684 JavaScript \u5bf9\u8c61\uff0c<code>type<\/code> \u5b57\u6bb5\u63cf\u8ff0\u4e86\u53d1\u751f\u4e86\u4ec0\u4e48\uff0c\u540c\u65f6 Action \u4e5f\u53ef\u4ee5\u5305\u542b\u5176\u4ed6\u63cf\u8ff0\u8fd9\u4e2a Action \u7684\u5b57\u6bb5\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684 Action \u548c\u4e00\u4e2a\u5220\u9664\u5f85\u529e\u4e8b\u9879\u7684 Action\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>\/\/ \u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684 Action\n{\n    type: 'ADD_TODO',\n    payload: {\n        id: 1,\n        text: 'Learn Redux'\n    }\n}\n\n\/\/ \u5220\u9664\u5f85\u529e\u4e8b\u9879\u7684 Action\n{\n    type: 'DELETE_TODO',\n    payload: {\n        id: 1\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6bcf\u4e2a Action \u90fd\u6709\u4e00\u4e2a <code>type<\/code> \u5b57\u6bb5\uff0c\u63cf\u8ff0\u4e86\u8fd9\u4e2a Action \u7684\u7c7b\u578b\u3002\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684 Action \u6709\u4e00\u4e2a <code>payload<\/code> \u5b57\u6bb5\uff0c\u5305\u542b\u4e86\u5f85\u529e\u4e8b\u9879\u7684 <code>id<\/code> \u548c <code>text<\/code>\uff0c\u5220\u9664\u5f85\u529e\u4e8b\u9879\u7684 Action \u6709\u4e00\u4e2a <code>payload<\/code> \u5b57\u6bb5\uff0c\u53ea\u5305\u542b\u4e86\u5f85\u529e\u4e8b\u9879\u7684 <code>id<\/code>\u3002<\/p>\n\n\n\n<p><strong>\u8bbe\u8ba1 Reducer<\/strong><\/p>\n\n\n\n<p>\u5728 Redux \u4e2d\uff0cReducer \u662f\u4e00\u4e2a\u63a5\u6536\u5f53\u524d\u7684 state \u548c\u4e00\u4e2a Action\uff0c\u7136\u540e\u8fd4\u56de\u65b0\u7684 state \u7684\u51fd\u6570\u3002\u6211\u4eec\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\u7684 Reducer \u6765\u5904\u7406\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u548c\u5220\u9664\u5f85\u529e\u4e8b\u9879\u7684 Action\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>function todosReducer(state = [], action) {\n    switch (action.type) {\n        case 'ADD_TODO':\n            \/\/ \u5728 state \u4e2d\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u5f85\u529e\u4e8b\u9879\n            return [...state, action.payload];\n        case 'DELETE_TODO':\n            \/\/ \u4ece state \u4e2d\u5220\u9664\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\n            return state.filter(todo =&gt; todo.id !== action.payload.id);\n        default:\n            \/\/ \u5982\u679c Reducer \u63a5\u6536\u5230\u4e86\u4e00\u4e2a\u672a\u77e5\u7684 Action\uff0c\u5b83\u5e94\u8be5\u8fd4\u56de\u5f53\u524d\u7684 state\n            return state;\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>todosReducer<\/code> \u662f\u4e00\u4e2a Reducer\uff0c\u5b83\u63a5\u6536\u5f53\u524d\u7684\u5f85\u529e\u4e8b\u9879\u5217\u8868\uff08<code>state<\/code>\uff09\u548c\u4e00\u4e2a Action\uff0c\u7136\u540e\u6839\u636e\u8fd9\u4e2a Action \u7684 <code>type<\/code> \u8fd4\u56de\u65b0\u7684\u5f85\u529e\u4e8b\u9879\u5217\u8868\u3002\u5982\u679c <code>type<\/code> \u662f <code>ADD_TODO<\/code>\uff0c\u5b83\u5c06\u65b0\u7684\u5f85\u529e\u4e8b\u9879\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\uff1b\u5982\u679c <code>type<\/code> \u662f <code>DELETE_TODO<\/code>\uff0c\u5b83\u5c06\u5f85\u529e\u4e8b\u9879\u4ece\u5217\u8868\u4e2d\u5220\u9664\uff1b\u5982\u679c <code>type<\/code> \u662f\u672a\u77e5\u7684\uff0c\u5b83\u5c06\u8fd4\u56de\u5f53\u524d\u7684\u5f85\u529e\u4e8b\u9879\u5217\u8868\u3002<\/p>\n\n\n\n<p>\u8fd9\u5c31\u662f\u8bbe\u8ba1 Action \u548c Reducer \u7684\u57fa\u672c\u65b9\u6cd5\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5904\u7406\u66f4\u590d\u6742\u7684\u72b6\u6001\u548c\u66f4\u591a\u7684 Action \u7c7b\u578b\uff0c\u4f46\u662f\u57fa\u672c\u7684\u601d\u8def\u662f\u4e00\u6837\u7684\uff1a\u5b9a\u4e49\u63cf\u8ff0\u5e94\u7528\u53d8\u5316\u7684 Action\uff0c\u7136\u540e\u7f16\u5199\u63a5\u6536\u8fd9\u4e9b Action \u5e76\u8fd4\u56de\u65b0\u7684 state \u7684 Reducer\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u901a\u8fc7\u5b9e\u4f8b\u89e3\u91ca\u5982\u4f55\u521b\u5efaStore\u548cReact\u7ec4\u4ef6ChatGPT<\/p>\n\n\n\n<p>\u521b\u5efa Redux Store \u548c React \u7ec4\u4ef6\u662f\u5728\u4f7f\u7528 Redux \u548c React \u6784\u5efa\u5e94\u7528\u7684\u5173\u952e\u6b65\u9aa4\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u8bf4\u660e\u5982\u4f55\u521b\u5efa Redux Store \u548c React \u7ec4\u4ef6\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u7ee7\u7eed\u4e0a\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\u5e94\u7528\u7684\u4f8b\u5b50\uff0c\u5148\u4ece\u521b\u5efa Store \u5f00\u59cb\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { createStore } from 'redux';\nimport todosReducer from '.\/reducers\/todos';\n\n\/\/ \u4f7f\u7528 todosReducer \u521b\u5efa Redux store\nconst store = createStore(todosReducer);\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5bfc\u5165 <code>createStore<\/code> \u51fd\u6570\u548c\u6211\u4eec\u524d\u9762\u5b9a\u4e49\u7684 <code>todosReducer<\/code>\u3002\u7136\u540e\uff0c\u6211\u4eec\u8c03\u7528 <code>createStore<\/code> \u5e76\u4f20\u5165 <code>todosReducer<\/code> \u6765\u521b\u5efa\u6211\u4eec\u7684 Redux Store\u3002<\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a React \u7ec4\u4ef6\u6765\u663e\u793a\u5f85\u529e\u4e8b\u9879\u5217\u8868\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import React from 'react';\nimport { connect } from 'react-redux';\n\n\/\/ \u4e00\u4e2a\u7b80\u5355\u7684\u5c55\u793a\u7ec4\u4ef6\uff0c\u5b83\u63a5\u6536\u5f85\u529e\u4e8b\u9879\u5217\u8868\u4f5c\u4e3a props\nfunction TodoList({ todos }) {\n    return (\n        &lt;ul&gt;\n            {todos.map(todo =&gt;\n                &lt;li key={todo.id}&gt;{todo.text}&lt;\/li&gt;\n            )}\n        &lt;\/ul&gt;\n    );\n}\n\n\/\/ \u4f7f\u7528 connect \u51fd\u6570\u8fde\u63a5 Redux store \u548c TodoList \u7ec4\u4ef6\nconst mapStateToProps = state =&gt; ({\n    todos: state\n});\n\nexport default connect(mapStateToProps)(TodoList);\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u5b9a\u4e49\u4e86\u4e00\u4e2a <code>TodoList<\/code> \u7ec4\u4ef6\uff0c\u8fd9\u4e2a\u7ec4\u4ef6\u63a5\u6536\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\u5217\u8868\u4f5c\u4e3a props\uff0c\u5e76\u5c06\u6bcf\u4e2a\u5f85\u529e\u4e8b\u9879\u6e32\u67d3\u4e3a\u4e00\u4e2a\u5217\u8868\u9879\u3002\u7136\u540e\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a <code>mapStateToProps<\/code> \u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u63a5\u6536 Redux Store \u7684\u72b6\u6001\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u7684\u5c5e\u6027\u5c06\u4f5c\u4e3a props \u4f20\u9012\u7ed9 <code>TodoList<\/code> \u7ec4\u4ef6\u3002\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>connect<\/code> \u51fd\u6570\u6765\u8fde\u63a5 Redux Store \u548c <code>TodoList<\/code> \u7ec4\u4ef6\uff0c\u5e76\u5bfc\u51fa\u8fd9\u4e2a\u8fde\u63a5\u540e\u7684\u7ec4\u4ef6\u3002<\/p>\n\n\n\n<p>\u8fd9\u5c31\u662f\u521b\u5efa Redux Store \u548c React \u7ec4\u4ef6\u7684\u57fa\u672c\u65b9\u6cd5\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5904\u7406\u66f4\u590d\u6742\u7684\u72b6\u6001\u548c\u66f4\u591a\u7684\u7ec4\u4ef6\uff0c\u4f46\u662f\u57fa\u672c\u7684\u601d\u8def\u662f\u4e00\u6837\u7684\uff1a\u4f7f\u7528 Reducer \u521b\u5efa Redux Store\uff0c\u7136\u540e\u4f7f\u7528 <code>connect<\/code> \u51fd\u6570\u8fde\u63a5 Redux Store \u548c React \u7ec4\u4ef6\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u901a\u8fc7\u5b9e\u4f8b\u89e3\u91ca\u5982\u4f55\u8fde\u63a5React\u548cReduxChatGPT<\/p>\n\n\n\n<p>\u5728\u4e00\u4e2a Redux \u5e94\u7528\u4e2d\uff0c\u8fde\u63a5 React \u548c Redux \u662f\u4e00\u4e2a\u91cd\u8981\u7684\u6b65\u9aa4\u3002\u6211\u4eec\u4f7f\u7528 react-redux \u5e93\u7684 <code>Provider<\/code> \u7ec4\u4ef6\u548c <code>connect<\/code> \u51fd\u6570\u6765\u5b9e\u73b0\u8fd9\u4e2a\u8fde\u63a5\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u8fde\u63a5 React \u548c Redux\uff1a<\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a Redux store\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { createStore } from 'redux';\nimport rootReducer from '.\/reducers';\n\nconst store = createStore(rootReducer);\n<\/code><\/pre>\n\n\n\n<p>\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>Provider<\/code> \u7ec4\u4ef6\u5c06 Redux store \u63d0\u4f9b\u7ed9\u6211\u4eec\u7684 React \u5e94\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import React from 'react';\nimport ReactDOM from 'react-dom';\nimport { Provider } from 'react-redux';\nimport App from '.\/App';\n\nReactDOM.render(\n    &lt;Provider store={store}&gt;\n        &lt;App \/&gt;\n    &lt;\/Provider&gt;,\n    document.getElementById('root')\n);\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>Provider<\/code> \u7ec4\u4ef6\u63a5\u6536 Redux store \u4f5c\u4e3a\u5176 prop\uff0c\u5e76\u5c06\u5176\u63d0\u4f9b\u7ed9\u5176\u5b50\u7ec4\u4ef6\u3002\u8fd9\u6837\uff0c\u6211\u4eec\u7684 React \u5e94\u7528\u5c31\u53ef\u4ee5\u8bbf\u95ee\u5230 Redux store \u7684 state\uff0c\u5e76\u53ef\u4ee5 dispatch action\u3002<\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u4f7f\u7528 <code>connect<\/code> \u51fd\u6570\u5c06 React \u7ec4\u4ef6\u8fde\u63a5\u5230 Redux store\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import React from 'react';\nimport { connect } from 'react-redux';\nimport { addTodo } from '.\/actions';\n\nfunction TodoList({ todos, addTodo }) {\n    return (\n        &lt;div&gt;\n            &lt;button onClick={() =&gt; addTodo('New Todo')}&gt;Add Todo&lt;\/button&gt;\n            &lt;ul&gt;\n                {todos.map((todo, index) =&gt;\n                    &lt;li key={index}&gt;{todo}&lt;\/li&gt;\n                )}\n            &lt;\/ul&gt;\n        &lt;\/div&gt;\n    );\n}\n\nconst mapStateToProps = state =&gt; ({\n    todos: state.todos\n});\n\nconst mapDispatchToProps = {\n    addTodo\n};\n\nexport default connect(mapStateToProps, mapDispatchToProps)(TodoList);\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u5b9a\u4e49\u4e86\u4e00\u4e2a <code>TodoList<\/code> \u7ec4\u4ef6\uff0c\u8fd9\u4e2a\u7ec4\u4ef6\u63a5\u6536 <code>todos<\/code> \u548c <code>addTodo<\/code> \u4f5c\u4e3a props\u3002\u7136\u540e\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86 <code>mapStateToProps<\/code> \u548c <code>mapDispatchToProps<\/code> \u51fd\u6570\uff0c\u8fd9\u4e24\u4e2a\u51fd\u6570\u5c06 Redux store \u7684 state \u548c dispatch \u51fd\u6570\u6620\u5c04\u5230 <code>TodoList<\/code> \u7ec4\u4ef6\u7684 props\u3002\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528 <code>connect<\/code> \u51fd\u6570\u5c06 <code>TodoList<\/code> \u7ec4\u4ef6\u8fde\u63a5\u5230 Redux store\u3002<\/p>\n\n\n\n<p>\u8fd9\u5c31\u662f\u8fde\u63a5 React \u548c Redux \u7684\u57fa\u672c\u6b65\u9aa4\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5904\u7406\u66f4\u590d\u6742\u7684\u72b6\u6001\u548c\u66f4\u591a\u7684 action\uff0c\u4f46\u662f\u57fa\u672c\u7684\u601d\u8def\u662f\u4e00\u6837\u7684\uff1a\u4f7f\u7528 <code>Provider<\/code> \u7ec4\u4ef6\u63d0\u4f9b Redux store\uff0c\u7136\u540e\u4f7f\u7528 <code>connect<\/code> \u51fd\u6570\u5c06 React \u7ec4\u4ef6\u8fde\u63a5\u5230 Redux store\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u901a\u8fc7\u5b9e\u4f8b\u89e3\u91ca\u5982\u4f55\u4f7f\u7528Redux\u8fdb\u884c\u72b6\u6001\u7ba1\u7406ChatGPT<\/p>\n\n\n\n<p>\u5728\u4e00\u4e2a Redux \u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 action \u6765\u63cf\u8ff0\u53d1\u751f\u4e86\u4ec0\u4e48\uff0c\u4f7f\u7528 reducer \u6765\u6839\u636e\u8fd9\u4e9b action \u66f4\u65b0 state\uff0c\u7136\u540e\u4f7f\u7528 store \u6765\u5b58\u50a8\u8fd9\u4e2a state\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u8bf4\u660e\u5982\u4f55\u4f7f\u7528 Redux \u8fdb\u884c\u72b6\u6001\u7ba1\u7406\u3002<\/p>\n\n\n\n<p>\u5047\u8bbe\u6211\u4eec\u6b63\u5728\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u8ba1\u6570\u5668\u5e94\u7528\u3002\u6211\u4eec\u7684 state \u53ea\u662f\u4e00\u4e2a\u8868\u793a\u5f53\u524d\u8ba1\u6570\u7684\u6570\u5b57\u3002<\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u6211\u4eec\u5b9a\u4e49\u4e24\u4e2a action\uff1a\u4e00\u4e2a\u7528\u4e8e\u589e\u52a0\u8ba1\u6570\uff0c\u4e00\u4e2a\u7528\u4e8e\u51cf\u5c11\u8ba1\u6570\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>\/\/ Action creators\nfunction increment() {\n    return { type: 'INCREMENT' };\n}\n\nfunction decrement() {\n    return { type: 'DECREMENT' };\n}\n<\/code><\/pre>\n\n\n\n<p>\u7136\u540e\uff0c\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a reducer \u6765\u5904\u7406\u8fd9\u4e9b action\u3002\u5982\u679c\u63a5\u6536\u5230\u4e86\u4e00\u4e2a &#8216;INCREMENT&#8217; action\uff0c\u6211\u4eec\u8fd4\u56de\u5f53\u524d\u8ba1\u6570\u52a0\u4e00\uff1b\u5982\u679c\u63a5\u6536\u5230\u4e86\u4e00\u4e2a &#8216;DECREMENT&#8217; action\uff0c\u6211\u4eec\u8fd4\u56de\u5f53\u524d\u8ba1\u6570\u51cf\u4e00\uff1b\u5426\u5219\uff0c\u6211\u4eec\u8fd4\u56de\u5f53\u524d\u8ba1\u6570\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>function counter(state = 0, action) {\n    switch (action.type) {\n        case 'INCREMENT':\n            return state + 1;\n        case 'DECREMENT':\n            return state - 1;\n        default:\n            return state;\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a Redux store \u6765\u5b58\u50a8\u6211\u4eec\u7684 state\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { createStore } from 'redux';\n\nconst store = createStore(counter);\n<\/code><\/pre>\n\n\n\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5 dispatch action \u6765\u6539\u53d8\u6211\u4eec\u7684 state\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>store.dispatch(increment()); \/\/ state is now 1\nstore.dispatch(increment()); \/\/ state is now 2\nstore.dispatch(decrement()); \/\/ state is now 1\n<\/code><\/pre>\n\n\n\n<p>\u6211\u4eec\u4e5f\u53ef\u4ee5\u8ba2\u9605 state \u7684\u6539\u53d8\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>store.subscribe(() =&gt; {\n    console.log(store.getState()); \/\/ logs the current state\n});\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u5c31\u662f\u4f7f\u7528 Redux \u8fdb\u884c\u72b6\u6001\u7ba1\u7406\u7684\u57fa\u672c\u6b65\u9aa4\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5904\u7406\u66f4\u590d\u6742\u7684 state \u548c\u66f4\u591a\u7684 action\uff0c\u4f46\u662f\u57fa\u672c\u7684\u601d\u8def\u662f\u4e00\u6837\u7684\uff1a\u5b9a\u4e49 action \u6765\u63cf\u8ff0\u53d1\u751f\u4e86\u4ec0\u4e48\uff0c\u5b9a\u4e49 reducer \u6765\u66f4\u65b0 state\uff0c\u7136\u540e\u4f7f\u7528 store \u6765\u5b58\u50a8\u8fd9\u4e2a state\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u901a\u8fc7\u5b9e\u4f8b\u89e3\u91caRedux\u7684\u6700\u4f73\u5b9e\u8df5\u7684\u72b6\u6001\u89c4\u8303\u5316ChatGPT<\/p>\n\n\n\n<p>\u5728\u4f7f\u7528 Redux \u8fdb\u884c\u72b6\u6001\u7ba1\u7406\u65f6\uff0c\u6709\u4e00\u79cd\u88ab\u5e7f\u6cdb\u63a5\u53d7\u7684\u6700\u4f73\u5b9e\u8df5\uff0c\u79f0\u4e3a\u201c\u72b6\u6001\u89c4\u8303\u5316\u201d\u3002\u89c4\u8303\u5316\u7684\u4e3b\u8981\u601d\u60f3\u662f\u5c06\u6240\u6709\u6570\u636e\u6a21\u578b\uff08\u4f8b\u5982\u7528\u6237\u3001\u5e16\u5b50\u7b49\uff09\u89c6\u4e3a\u6570\u636e\u5e93\u4e2d\u7684\u8868\uff0c\u6bcf\u4e2a\u6a21\u578b\u7c7b\u578b\u90fd\u6709\u5176\u5bf9\u5e94\u7684\u8868\uff0c\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u90fd\u5bf9\u5e94\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5e76\u7531\u552f\u4e00 ID \u7d22\u5f15\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u7684\u4f8b\u5b50\u5c06\u89e3\u91ca\u8fd9\u4e2a\u6982\u5ff5\u3002<\/p>\n\n\n\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u535a\u5ba2\u5e94\u7528\uff0c\u5b83\u6709\u7528\u6237\uff08users\uff09\u3001\u6587\u7ae0\uff08posts\uff09\u548c\u8bc4\u8bba\uff08comments\uff09\u3002\u672a\u89c4\u8303\u5316\u7684\u72b6\u6001\u53ef\u80fd\u770b\u8d77\u6765\u50cf\u8fd9\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>{\n    posts: [\n        {\n            id: 1,\n            author: {\n                id: 1,\n                name: 'Paul'\n                \/\/ ...other user fields\n            },\n            body: '......',\n            comments: [\n                {\n                    id: 1,\n                    author: {\n                        id: 2,\n                        name: 'Nicole'\n                        \/\/ ...other user fields\n                    },\n                    comment: '.....'\n                },\n                \/\/ ...other comments\n            ]\n        },\n        \/\/ ...other posts\n    ]\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u72b6\u6001\u4e2d\uff0c\u6bcf\u4e2a\u5e16\u5b50\u90fd\u6709\u4e00\u4e2a\u5d4c\u5165\u7684\u4f5c\u8005\u5bf9\u8c61\u548c\u8bc4\u8bba\u6570\u7ec4\uff0c\u6bcf\u4e2a\u8bc4\u8bba\u53c8\u6709\u4e00\u4e2a\u5d4c\u5165\u7684\u4f5c\u8005\u5bf9\u8c61\u3002\u8fd9\u4f7f\u5f97\u5728\u66f4\u65b0\u3001\u67e5\u8be2\u6216\u64cd\u4f5c\u8fd9\u4e9b\u5bf9\u8c61\u65f6\u4f1a\u6709\u5f88\u591a\u95ee\u9898\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4e00\u4e2a\u7528\u6237\u7684\u540d\u5b57\u6539\u53d8\u4e86\uff0c\u6211\u4eec\u9700\u8981\u5728\u6bcf\u4e2a\u4ed6\u6216\u5979\u53d1\u8868\u7684\u5e16\u5b50\u548c\u8bc4\u8bba\u4e2d\u90fd\u66f4\u65b0\u8fd9\u4e2a\u540d\u5b57\u3002<\/p>\n\n\n\n<p>\u76f8\u53cd\uff0c\u89c4\u8303\u5316\u7684\u72b6\u6001\u5c06\u6bcf\u79cd\u6570\u636e\u7c7b\u578b\u653e\u5728\u5176\u81ea\u5df1\u7684\u5bf9\u8c61\u4e2d\uff0c\u5e76\u901a\u8fc7 ID \u6765\u5f15\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>{\n    users: {\n        1: {\n            id: 1,\n            name: 'Paul'\n            \/\/ ...other user fields\n        },\n        2: {\n            id: 2,\n            name: 'Nicole'\n            \/\/ ...other user fields\n        }\n        \/\/ ...other users\n    },\n    posts: {\n        1: {\n            id: 1,\n            author: 1,\n            body: '......',\n            comments: [1]\n        },\n        \/\/ ...other posts\n    },\n    comments: {\n        1: {\n            id: 1,\n            author: 2,\n            comment: '.....'\n        },\n        \/\/ ...other comments\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u73b0\u5728\uff0c\u6bcf\u79cd\u6570\u636e\u7c7b\u578b\u90fd\u6709\u81ea\u5df1\u7684\u8868\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7 ID \u6765\u5f15\u7528\u5176\u4ed6\u6570\u636e\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u67e5\u627e <code>state.users[post.author]<\/code> \u6765\u627e\u5230\u4e00\u4e2a\u5e16\u5b50\u7684\u4f5c\u8005\u3002\u8fd9\u4f7f\u5f97\u66f4\u65b0\u3001\u67e5\u8be2\u6216\u64cd\u4f5c\u5bf9\u8c61\u53d8\u5f97\u66f4\u5bb9\u6613\uff0c\u66f4\u4e00\u81f4\u3002<\/p>\n\n\n\n<p>\u8fd9\u5c31\u662f\u72b6\u6001\u89c4\u8303\u5316\u7684\u57fa\u672c\u6982\u5ff5\u3002\u5728\u5b9e\u8df5\u4e2d\uff0c\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7ef4\u62a4\u4e00\u4e2a\u53ef\u9884\u6d4b\u3001\u4e00\u81f4\u548c\u9ad8\u6548\u7684\u72b6\u6001\u7ed3\u6784\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u901a\u8fc7\u5b9e\u4f8b\u89e3\u91caRedux\u7684\u6700\u4f73\u5b9e\u8df5\u7684\u4f7f\u7528\u9009\u62e9\u5668ChatGPT<\/p>\n\n\n\n<p>\u9009\u62e9\u5668\uff08selectors\uff09\u662f\u4ece Redux store \u4e2d\u63d0\u53d6\u6570\u636e\u7684\u51fd\u6570\u3002\u5b83\u4eec\u662f Redux \u6700\u4f73\u5b9e\u8df5\u7684\u4e00\u90e8\u5206\uff0c\u53ef\u4ee5\u4f7f\u60a8\u7684\u4ee3\u7801\u66f4\u6e05\u6d01\uff0c\u66f4\u5bb9\u6613\u7ef4\u62a4\uff0c\u5e76\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u9009\u62e9\u5668\u4f7f\u5f97\u60a8\u53ef\u4ee5\u62bd\u8c61\u72b6\u6001\u7684\u5f62\u72b6\uff0c\u4ee5\u4fbf\u5728\u60a8\u66f4\u6539\u72b6\u6001\u7ed3\u6784\u65f6\uff0c\u60a8\u53ea\u9700\u66f4\u65b0\u9009\u62e9\u5668\u51fd\u6570\uff0c\u800c\u4e0d\u662f\u66f4\u65b0\u4f7f\u7528\u8fd9\u4e9b\u6570\u636e\u7684\u6bcf\u4e2a\u7ec4\u4ef6\u3002<\/p>\n\n\n\n<p>\u8ba9\u6211\u4eec\u7ee7\u7eed\u4e0a\u8ff0\u535a\u5ba2\u5e94\u7528\u7684\u4f8b\u5b50\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4ee5\u4e0b\u7684\u89c4\u8303\u5316\u72b6\u6001\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>{\n    users: {\n        1: {\n            id: 1,\n            name: 'Paul'\n            \/\/ ...other user fields\n        },\n        2: {\n            id: 2,\n            name: 'Nicole'\n            \/\/ ...other user fields\n        }\n        \/\/ ...other users\n    },\n    posts: {\n        1: {\n            id: 1,\n            author: 1,\n            body: '......',\n            comments: [1]\n        },\n        \/\/ ...other posts\n    },\n    comments: {\n        1: {\n            id: 1,\n            author: 2,\n            comment: '.....'\n        },\n        \/\/ ...other comments\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5047\u8bbe\u6211\u4eec\u8981\u4e3a\u4e00\u4e2a\u5e16\u5b50\u6e32\u67d3\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u5e76\u663e\u793a\u5e16\u5b50\u7684\u4f5c\u8005\u3002\u6211\u4eec\u53ef\u4ee5\u5728\u7ec4\u4ef6\u4e2d\u76f4\u63a5\u8bbf\u95ee <code>state.users[post.author]<\/code>\uff0c\u4f46\u662f\u5982\u679c\u6211\u4eec\u66f4\u6539\u4e86\u72b6\u6001\u7684\u5f62\u72b6\uff0c\u6211\u4eec\u5c31\u5fc5\u987b\u66f4\u65b0\u8fd9\u4e2a\u7ec4\u4ef6\u3002\u76f8\u53cd\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u9009\u62e9\u5668\u6765\u83b7\u53d6\u4e00\u4e2a\u5e16\u5b50\u7684\u4f5c\u8005\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>const getAuthorOfPost = (state, postId) =&gt; {\n    const post = state.posts[postId];\n    return state.users[post.author];\n};\n<\/code><\/pre>\n\n\n\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u6211\u4eec\u7684\u7ec4\u4ef6\u4e2d\u4f7f\u7528\u8fd9\u4e2a\u9009\u62e9\u5668\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u8bbf\u95ee <code>state.users[post.author]<\/code>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>const mapStateToProps = (state, ownProps) =&gt; ({\n    author: getAuthorOfPost(state, ownProps.postId)\n});\n<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u66f4\u6539\u4e86\u72b6\u6001\u7684\u5f62\u72b6\uff0c\u6211\u4eec\u53ea\u9700\u8981\u66f4\u65b0 <code>getAuthorOfPost<\/code> \u9009\u62e9\u5668\uff0c\u800c\u4e0d\u662f\u66f4\u65b0\u6240\u6709\u4f7f\u7528\u8fd9\u4e2a\u6570\u636e\u7684\u7ec4\u4ef6\u3002<\/p>\n\n\n\n<p>\u6b64\u5916\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u50cf Reselect \u8fd9\u6837\u7684\u5e93\u6765\u521b\u5efa\u53ef\u8bb0\u5fc6\u7684\u9009\u62e9\u5668\uff0c\u8fd9\u53ef\u4ee5\u63d0\u9ad8\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u53ef\u8bb0\u5fc6\u7684\u9009\u62e9\u5668\u53ea\u6709\u5728\u5176\u53c2\u6570\u53d1\u751f\u66f4\u6539\u65f6\u624d\u4f1a\u91cd\u65b0\u8ba1\u7b97\u5176\u7ed3\u679c\uff0c\u5426\u5219\u5b83\u4eec\u5c06\u8fd4\u56de\u4e4b\u524d\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 Reselect \u521b\u5efa\u4e00\u4e2a\u53ef\u8bb0\u5fc6\u7684 <code>getAuthorOfPost<\/code> \u9009\u62e9\u5668\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { createSelector } from 'reselect';\n\nconst getPosts = state =&gt; state.posts;\nconst getUsers = state =&gt; state.users;\nconst getPostId = (state, postId) =&gt; postId;\n\nconst getAuthorOfPost = createSelector(\n    [getPosts, getUsers, getPostId],\n    (posts, users, postId) =&gt; {\n        const post = posts[postId];\n        return users[post.author];\n    }\n);\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u7248\u672c\u7684 <code>getAuthorOfPost<\/code> \u9009\u62e9\u5668\u73b0\u5728\u662f\u53ef\u8bb0\u5fc6\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5982\u679c <code>state.posts<\/code>\u3001<code>state.users<\/code> \u6216 <code>postId<\/code> \u6ca1\u6709\u66f4\u6539\uff0c\u5b83\u5c06\u7acb\u5373\u8fd4\u56de\u4e4b\u524d\u7684\u7ed3\u679c\uff0c<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u901a\u8fc7\u5b9e\u4f8b\u89e3\u91caRedux\u7684\u6700\u4f73\u5b9e\u8df5\u7684\u5f02\u6b65\u64cd\u4f5c\u7684\u5904\u7406ChatGPT<\/p>\n\n\n\n<p>\u5728 Redux \u4e2d\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\uff08\u4f8b\u5982 API \u8c03\u7528\uff09\u7684\u63a8\u8350\u65b9\u5f0f\u662f\u4f7f\u7528 Redux \u4e2d\u95f4\u4ef6\uff0c\u5982 Redux Thunk \u6216 Redux Saga\u3002\u8fd9\u4e9b\u4e2d\u95f4\u4ef6\u53ef\u4ee5\u8ba9\u6211\u4eec\u5728 dispatching action \u65f6\u5199\u5f02\u6b65\u903b\u8f91\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528 Redux Thunk \u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u7684\u4f8b\u5b50\u3002\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684 Redux \u5e94\u7528\uff0c\u8fd9\u4e2a\u5e94\u7528\u5c06\u4ece\u4e00\u4e2a API \u83b7\u53d6\u4e00\u4e9b\u7528\u6237\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5b9a\u4e49\u4e00\u4e9b action\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>\/\/ actions.js\nexport const FETCH_USERS_REQUEST = 'FETCH_USERS_REQUEST';\nexport const FETCH_USERS_SUCCESS = 'FETCH_USERS_SUCCESS';\nexport const FETCH_USERS_FAILURE = 'FETCH_USERS_FAILURE';\n\nexport const fetchUsersRequest = () =&gt; ({\n    type: FETCH_USERS_REQUEST\n});\n\nexport const fetchUsersSuccess = (users) =&gt; ({\n    type: FETCH_USERS_SUCCESS,\n    payload: users\n});\n\nexport const fetchUsersFailure = (error) =&gt; ({\n    type: FETCH_USERS_FAILURE,\n    payload: error\n});\n<\/code><\/pre>\n\n\n\n<p>\u7136\u540e\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a thunk action creator\u3002\u8fd9\u4e2a\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u63a5\u6536 <code>dispatch<\/code> \u4f5c\u4e3a\u53c2\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>\/\/ actions.js\nimport axios from 'axios';\n\nexport const fetchUsers = () =&gt; {\n    return function(dispatch) {\n        dispatch(fetchUsersRequest());\n        axios.get('https:\/\/api.example.com\/users')\n            .then(response =&gt; {\n                const users = response.data;\n                dispatch(fetchUsersSuccess(users));\n            })\n            .catch(error =&gt; {\n                dispatch(fetchUsersFailure(error.message));\n            });\n    };\n};\n<\/code><\/pre>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u5904\u7406\u8fd9\u4e9b action \u7684 reducer\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>\/\/ reducer.js\nimport { FETCH_USERS_REQUEST, FETCH_USERS_SUCCESS, FETCH_USERS_FAILURE } from '.\/actions';\n\nconst initialState = {\n    loading: false,\n    users: [],\n    error: ''\n};\n\nexport const reducer = (state = initialState, action) =&gt; {\n    switch(action.type) {\n        case FETCH_USERS_REQUEST:\n            return {\n                ...state,\n                loading: true\n            };\n        case FETCH_USERS_SUCCESS:\n            return {\n                ...state,\n                loading: false,\n                users: action.payload,\n                error: ''\n            };\n        case FETCH_USERS_FAILURE:\n            return {\n                ...state,\n                loading: false,\n                users: [],\n                error: action.payload\n            };\n        default:\n            return state;\n    }\n};\n<\/code><\/pre>\n\n\n\n<p>\u6700\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u6211\u4eec\u7684\u7ec4\u4ef6\u4e2d\u4f7f\u7528 <code>fetchUsers<\/code> action\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import React, { useEffect } from 'react';\nimport { useSelector, useDispatch } from 'react-redux';\nimport { fetchUsers } from '.\/actions';\n\nfunction Users() {\n    const dispatch = useDispatch();\n    const { users, error, loading } = useSelector(state =&gt; state);\n\n    useEffect(() =&gt; {\n        dispatch(fetchUsers());\n    }, [dispatch]);\n\n    return (\n        &lt;div&gt;\n            {loading &amp;&amp; &lt;p&gt;Loading...&lt;\/p&gt;}\n            {error &amp;&amp; &lt;p&gt;Error: {error}&lt;\/p&gt;}\n            {users.map(user =&gt; \n                &lt;p key={user.id}&gt;{user.name}&lt;\/p&gt;\n            )}\n        &lt;\/div&gt;\n    );\n}\n\nexport default Users;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5728 <code>fetchUsers<\/code> action \u4e2d dispatch \u4e86\u4e09\u4e2a\u4e0d\u540c\u7684 action\uff1a<code>fetchUsersRequest<\/code> \u5728\u8bf7\u6c42\u5f00\u59cb\u65f6 dispatch\uff0c<code>fetchUsersSuccess<\/code> \u5728\u8bf7\u6c42\u6210\u529f\u65f6 dispatch\uff0c<code>fetchUsersFailure<\/code> \u5728\u8bf7\u6c42\u5931\u8d25\u65f6 dispatch\u3002\u8fd9\u4f7f\u6211\u4eec\u53ef\u4ee5\u5728 reducer \u4e2d\u6839\u636e\u8fd9\u4e9b\u4e0d\u540c\u7684 action \u66f4\u65b0 state\uff0c\u4ece\u800c\u5728 UI \u4e2d\u6b63\u786e\u663e\u793a loading \u72b6\u6001\u3001\u9519\u8bef\u6d88\u606f\u548c\u7528\u6237\u6570\u636e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4ecb\u7ecdRedux ToolkitChatGPT<\/p>\n\n\n\n<p>Redux Toolkit \u662f Redux \u56e2\u961f\u4e3a\u7b80\u5316 Redux \u4f7f\u7528\u800c\u5f00\u53d1\u7684\u5b98\u65b9\u5de5\u5177\u96c6\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5b9e\u7528\u51fd\u6570\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u5feb\u901f\u3001\u66f4\u7b80\u6d01\u5730\u7f16\u5199 Redux \u4ee3\u7801\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f Redux Toolkit \u7684\u4e3b\u8981\u529f\u80fd\u548c\u4f18\u52bf\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>configureStore()<\/strong>\uff1a\u8fd9\u4e2a\u51fd\u6570\u7528\u4e8e\u521b\u5efa Redux store\uff0c\u5e76\u81ea\u52a8\u8bbe\u7f6e\u4e00\u4e9b\u4e2d\u95f4\u4ef6\uff08\u5305\u62ec Redux Thunk \u548c Redux DevTools Extension\uff09\u3002\u5b83\u8fd8\u53ef\u4ee5\u5904\u7406 Redux \u7684\u4e00\u4e9b\u5e38\u89c1\u914d\u7f6e\u3002<\/li>\n\n\n\n<li><strong>createReducer()<\/strong>\uff1a\u8fd9\u4e2a\u51fd\u6570\u63d0\u4f9b\u4e86\u4e00\u79cd\u66f4\u7b80\u6d01\u7684\u65b9\u5f0f\u6765\u5b9a\u4e49 reducer\uff0c\u4f7f\u7528\u5bf9\u8c61\u67e5\u627e\u8868\u4ee3\u66ff switch \u8bed\u53e5\u3002<\/li>\n\n\n\n<li><strong>createAction()<\/strong>\uff1a\u8fd9\u4e2a\u51fd\u6570\u7528\u4e8e\u751f\u6210 action creator \u51fd\u6570\u3002\u5b83\u5c06\u81ea\u52a8\u4f7f\u7528\u4f20\u9012\u7ed9 action creator \u7684\u53c2\u6570\u4f5c\u4e3a payload\u3002<\/li>\n\n\n\n<li><strong>createSlice()<\/strong>\uff1a\u8fd9\u53ef\u80fd\u662f Redux Toolkit \u4e2d\u6700\u5f3a\u5927\u7684\u529f\u80fd\u3002createSlice() \u51fd\u6570\u53ef\u4ee5\u540c\u65f6\u751f\u6210 slice reducer\u3001action types \u548c action creators\u3002\u8fd9\u5927\u5927\u7b80\u5316\u4e86 Redux \u7684\u6837\u677f\u4ee3\u7801\u3002<\/li>\n\n\n\n<li><strong>createAsyncThunk()<\/strong>\uff1a\u8fd9\u4e2a\u51fd\u6570\u7528\u4e8e\u5904\u7406\u5f02\u6b65\u903b\u8f91\uff0c\u751f\u6210\u5bf9\u5e94\u7684 action types \u5e76\u81ea\u52a8 dispatch action\u3002<\/li>\n\n\n\n<li><strong>createSelector()<\/strong>\uff1a\u8fd9\u662f Reselect \u5e93\u7684\u4e00\u90e8\u5206\uff0c\u7528\u4e8e\u751f\u6210\u53ef\u8bb0\u5fc6\u7684\u9009\u62e9\u5668\u3002\u8fd9\u53ef\u4ee5\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528 Redux Toolkit \u7684\u4e00\u4e2a\u7b80\u5355\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { configureStore, createSlice } from '@reduxjs\/toolkit';\n\nconst counterSlice = createSlice({\n  name: 'counter',\n  initialState: 0,\n  reducers: {\n    increment: (state) =&gt; state + 1,\n    decrement: (state) =&gt; state - 1,\n  },\n});\n\nconst store = configureStore({\n  reducer: counterSlice.reducer,\n});\n\nstore.dispatch(counterSlice.actions.increment());\nconsole.log(store.getState()); \/\/ Outputs: 1\n\nstore.dispatch(counterSlice.actions.decrement());\nconsole.log(store.getState()); \/\/ Outputs: 0\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>createSlice()<\/code> \u521b\u5efa\u4e86\u4e00\u4e2a\u5305\u542b reducer \u548c actions \u7684 slice\uff0c\u7136\u540e\u4f7f\u7528 <code>configureStore()<\/code> \u521b\u5efa\u4e86 Redux store\u3002\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 <code>counterSlice.actions<\/code> \u6765 dispatch action\uff0c\u800c\u4e0d\u9700\u8981\u5199\u989d\u5916\u7684 action creator\u3002<\/p>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0cRedux Toolkit \u53ef\u4ee5\u4f7f Redux \u66f4\u6613\u4e8e\u4f7f\u7528\uff0c\u66f4\u6613\u4e8e\u7406\u89e3\uff0c\u540c\u65f6\u4ecd\u7136\u4fdd\u6301 Redux \u7684\u7075\u6d3b\u6027\u548c\u53ef\u9884\u6d4b\u6027\u3002\u5bf9\u4e8e\u65b0\u7684 Redux \u9879\u76ee\uff0c\u5f3a\u70c8\u5efa\u8bae\u4f7f\u7528 Redux Toolkit\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4f7f\u7528createSlice\u521b\u5efareducer\u548cactionChatGPT<\/p>\n\n\n\n<p><code>createSlice()<\/code> \u662f Redux Toolkit \u4e2d\u7684\u4e00\u4e2a\u51fd\u6570\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a\u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u63cf\u8ff0\u4e86\u4e00\u7ec4 action reducers\uff08\u5904\u7406 action \u7684\u51fd\u6570\uff09\uff0c\u521d\u59cb\u7684 state \u503c\uff0c\u4ee5\u53ca\u4e00\u4e2a slice \u540d\u79f0\u3002\u8fd9\u4e2a\u51fd\u6570\u4f1a\u8fd4\u56de\u4e00\u4e2a\u751f\u6210\u7684 slice \u5bf9\u8c61\uff0c\u5305\u542b\u81ea\u52a8\u751f\u6210\u7684 action creators \u548c\u4e00\u4e2a reducer\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528 <code>createSlice()<\/code> \u7684\u4f8b\u5b50\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u7ba1\u7406\u7b80\u5355\u8ba1\u6570\u5668\u72b6\u6001\u7684 slice\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { createSlice } from '@reduxjs\/toolkit'\n\nconst counterSlice = createSlice({\n  name: 'counter',\n  initialState: 0,\n  reducers: {\n    increment: state =&gt; state + 1,\n    decrement: state =&gt; state - 1,\n    reset: () =&gt; 0,\n  },\n})\n\n\/\/ Extract the action creators object and the reducer\nconst { actions, reducer } = counterSlice\n\n\/\/ Extract each action creator by name\nconst { increment, decrement, reset } = actions\n\nconsole.log(increment())\n\/\/ {type: \"counter\/increment\", payload: undefined}\n\nconsole.log(reducer(10, increment()))\n\/\/ 11\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>createSlice()<\/code> \u63a5\u53d7\u4e00\u4e2a\u5305\u542b <code>name<\/code>\u3001<code>initialState<\/code> \u548c <code>reducers<\/code> \u5c5e\u6027\u7684\u5bf9\u8c61\u3002<code>reducers<\/code> \u5bf9\u8c61\u662f\u4e00\u7ec4\u5bf9\u5e94\u5230\u7279\u5b9a action \u7684\u51fd\u6570\uff0c\u6bcf\u4e2a\u51fd\u6570\u90fd\u5e94\u8be5\u662f\u4e00\u4e2a reducer\uff0c\u5b83\u63a5\u53d7\u5f53\u524d\u7684 state \u548c\u4e00\u4e2a action\uff0c\u7136\u540e\u8fd4\u56de\u65b0\u7684 state\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u6709\u4e09\u4e2a action reducer\uff1a<code>increment<\/code>\u3001<code>decrement<\/code> \u548c <code>reset<\/code>\u3002<\/p>\n\n\n\n<p><code>createSlice()<\/code> \u4f1a\u8fd4\u56de\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5305\u542b\u751f\u6210\u7684 action creators \u548c\u4e00\u4e2a reducer\u3002action creators \u662f\u5bf9\u5e94\u5230 reducers \u7684\u51fd\u6570\uff0c\u53ef\u4ee5\u7528\u4e8e\u751f\u6210 action\u3002\u8fd9\u4e9b action creators \u4f1a\u81ea\u52a8\u63a5\u53d7\u4e00\u4e2a\u53c2\u6570\uff0c\u4f5c\u4e3a\u751f\u6210\u7684 action \u7684 payload\u3002\u751f\u6210\u7684 reducer \u662f\u4e00\u4e2a\u5178\u578b\u7684 Redux reducer\uff0c\u63a5\u53d7 state \u548c action\uff0c\u8fd4\u56de\u65b0\u7684 state\u3002<\/p>\n\n\n\n<p>\u5728\u6211\u4eec\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86\u89e3\u6784\u8d4b\u503c\u6765\u4ece\u8fd4\u56de\u7684\u5bf9\u8c61\u4e2d\u63d0\u53d6 action creators \u548c reducer\u3002\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9b action creators \u6765\u751f\u6210 action\uff0c\u5e76\u4f7f\u7528 reducer \u6765\u5904\u7406\u8fd9\u4e9b action\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u4f8b\u5b50\u6f14\u793a\u4e86 <code>createSlice()<\/code> \u7684\u4e3b\u8981\u4f18\u70b9\uff1a\u5b83\u53ef\u4ee5\u51cf\u5c11 Redux \u7684\u6837\u677f\u4ee3\u7801\uff0c\u4f7f\u5f97\u5b9a\u4e49 action creators \u548c reducers \u53d8\u5f97\u66f4\u7b80\u5355\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4f7f\u7528configureStore\u521b\u5efastoreChatGPT<\/p>\n\n\n\n<p><code>configureStore()<\/code> \u662f Redux Toolkit \u7684\u4e00\u90e8\u5206\uff0c\u5b83\u63d0\u4f9b\u4e86\u521b\u5efa Redux store \u7684\u7b80\u5316\u65b9\u6cd5\u3002\u4f7f\u7528 <code>configureStore()<\/code>\uff0c\u4f60\u53ef\u4ee5\u65b9\u4fbf\u5730\u8bbe\u7f6e reducer\u3001\u4e2d\u95f4\u4ef6\u3001\u5f00\u53d1\u8005\u5de5\u5177\u7b49\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528 <code>configureStore()<\/code> \u7684\u57fa\u672c\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { configureStore } from '@reduxjs\/toolkit'\nimport rootReducer from '.\/reducer'\n\nconst store = configureStore({\n  reducer: rootReducer,\n})\n\nexport default store\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5bfc\u5165 <code>configureStore<\/code> \u51fd\u6570\u548c\u6211\u4eec\u81ea\u5df1\u7684 <code>rootReducer<\/code>\u3002\u7136\u540e\u6211\u4eec\u8c03\u7528 <code>configureStore<\/code>\uff0c\u5c06 <code>rootReducer<\/code> \u4f5c\u4e3a\u53c2\u6570\u4f20\u5165\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 Redux store\u3002<\/p>\n\n\n\n<p><code>configureStore()<\/code> \u5e26\u6709\u4e00\u4e9b\u4f18\u79c0\u7684\u9ed8\u8ba4\u8bbe\u7f6e\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Redux Thunk \u4e2d\u95f4\u4ef6<\/strong>\uff1aRedux Thunk \u662f Redux \u7684\u4e00\u4e2a\u4e2d\u95f4\u4ef6\uff0c\u5141\u8bb8\u6211\u4eec\u5199\u5f02\u6b65\u903b\u8f91\uff0c\u5e76\u5728\u9700\u8981\u65f6 dispatch action\u3002<code>configureStore()<\/code> \u9ed8\u8ba4\u542f\u7528\u4e86 Redux Thunk\u3002<\/li>\n\n\n\n<li><strong>Redux DevTools \u6269\u5c55\u96c6\u6210<\/strong>\uff1aRedux DevTools \u662f\u4e00\u6b3e\u5f3a\u5927\u7684\u5f00\u53d1\u8005\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6765\u8ffd\u8e2a state \u53d8\u5316\uff0c\u8bb0\u5f55 action\uff0c\u8fdb\u884c\u65f6\u95f4\u65c5\u884c\u8c03\u8bd5\u7b49\u3002<code>configureStore()<\/code> \u9ed8\u8ba4\u542f\u7528\u4e86\u5bf9 Redux DevTools \u7684\u652f\u6301\u3002<\/li>\n\n\n\n<li><strong>\u81ea\u52a8\u5408\u5e76 reducer<\/strong>\uff1a\u4f60\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5bf9\u8c61\u4f20\u9012\u7ed9 <code>configureStore()<\/code> \u7684 <code>reducer<\/code> \u9009\u9879\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u7684\u6bcf\u4e2a\u5c5e\u6027\u90fd\u662f\u4e00\u4e2a\u5355\u72ec\u7684 reducer\u3002<code>configureStore()<\/code> \u4f1a\u81ea\u52a8\u5408\u5e76\u8fd9\u4e9b reducer\uff0c\u4f60\u4e0d\u518d\u9700\u8981\u4f7f\u7528 <code>combineReducers()<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u81ea\u52a8\u68c0\u67e5 state \u548c action \u7684\u4e0d\u53ef\u53d8\u6027<\/strong>\uff1a\u5728\u5f00\u53d1\u6a21\u5f0f\u4e0b\uff0c<code>configureStore()<\/code> \u4f1a\u81ea\u52a8\u68c0\u67e5\u4f60\u7684 reducer \u662f\u5426\u5728\u4fee\u6539 state \u6216 action\u3002\u8fd9\u6709\u52a9\u4e8e\u627e\u51fa\u548c\u4fee\u590d\u4ee3\u7801\u4e2d\u7684\u9519\u8bef\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0c<code>configureStore()<\/code> \u63d0\u4f9b\u4e86\u4e00\u79cd\u66f4\u7b80\u5355\u3001\u66f4\u65b9\u4fbf\u7684\u65b9\u5f0f\u6765\u521b\u5efa Redux store\uff0c\u5e76\u5185\u7f6e\u4e86\u4e00\u4e9b\u5bf9\u5f00\u53d1\u8005\u53cb\u597d\u7684\u9ed8\u8ba4\u8bbe\u7f6e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5b9e\u6218\u6f14\u7ec3\uff1a\u4f7f\u7528Redux Toolkit\u91cd\u6784\u5e94\u7528ChatGPT<\/p>\n\n\n\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u4f7f\u7528\u539f\u59cb Redux \u6784\u5efa\u7684\u8ba1\u6570\u5668\u5e94\u7528\u3002\u73b0\u5728\u6211\u4eec\u5c06\u4f7f\u7528 Redux Toolkit \u6765\u91cd\u6784\u5b83\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u539f\u59cb\u7684 Redux \u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>\/\/ actions.js\nexport const INCREMENT = 'INCREMENT';\nexport const DECREMENT = 'DECREMENT';\n\nexport const increment = () =&gt; ({ type: INCREMENT });\nexport const decrement = () =&gt; ({ type: DECREMENT });\n\n\/\/ reducer.js\nimport { INCREMENT, DECREMENT } from '.\/actions';\n\nconst initialState = 0;\n\nexport const counterReducer = (state = initialState, action) =&gt; {\n  switch (action.type) {\n    case INCREMENT:\n      return state + 1;\n    case DECREMENT:\n      return state - 1;\n    default:\n      return state;\n  }\n};\n\n\/\/ store.js\nimport { createStore } from 'redux';\nimport { counterReducer } from '.\/reducer';\n\nconst store = createStore(counterReducer);\n\nexport default store;\n<\/code><\/pre>\n\n\n\n<p>\u73b0\u5728\u6211\u4eec\u4f7f\u7528 Redux Toolkit \u6765\u91cd\u6784\u5b83\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>\/\/ slice.js\nimport { createSlice } from '@reduxjs\/toolkit';\n\nconst counterSlice = createSlice({\n  name: 'counter',\n  initialState: 0,\n  reducers: {\n    increment: state =&gt; state + 1,\n    decrement: state =&gt; state - 1\n  }\n});\n\nexport const { increment, decrement } = counterSlice.actions;\n\nexport default counterSlice.reducer;\n\n\/\/ store.js\nimport { configureStore } from '@reduxjs\/toolkit';\nimport counterReducer from '.\/slice';\n\nconst store = configureStore({\n  reducer: counterReducer\n});\n\nexport default store;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u65b0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <code>createSlice()<\/code> \u521b\u5efa\u4e86\u4e00\u4e2a\u5305\u542b reducer \u548c action creators \u7684 slice\u3002\u6211\u4eec\u5bfc\u51fa\u4e86 action creators \u548c reducer\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5728\u5176\u4ed6\u5730\u65b9\u4f7f\u7528\u5b83\u4eec\u3002<\/p>\n\n\n\n<p>\u7136\u540e\u6211\u4eec\u4f7f\u7528 <code>configureStore()<\/code> \u521b\u5efa\u4e86 store\uff0c\u8fd9\u4e2a\u51fd\u6570\u81ea\u52a8\u5e94\u7528\u4e86 Redux Thunk \u548c Redux DevTools \u6269\u5c55\uff0c\u5e76\u4e14\u53ef\u4ee5\u81ea\u52a8\u5408\u5e76\u591a\u4e2a reducer\u3002<\/p>\n\n\n\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u7684\u4ee3\u7801\u66f4\u7b80\u6d01\uff0c\u66f4\u5bb9\u6613\u7406\u89e3\u3002\u6211\u4eec\u4f7f\u7528\u4e86\u66f4\u5c11\u7684\u6837\u677f\u4ee3\u7801\uff0c\u53ef\u4ee5\u66f4\u4e13\u6ce8\u4e8e\u5b9e\u9645\u7684\u4e1a\u52a1\u903b\u8f91\u3002\u8fd9\u5c31\u662f Redux Toolkit \u7684\u4f18\u52bf\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"User\"\/><\/figure>\n\n\n\n<p>\u8bf7\u603b\u7ed3\u672c\u6559\u7a0bChatGPT<\/p>\n\n\n\n<p>\u5f88\u597d\uff0c\u8ba9\u6211\u4eec\u56de\u987e\u4e00\u4e0b\u8fd9\u4e2a Redux \u6559\u7a0b\u7684\u4e3b\u8981\u5185\u5bb9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4ec0\u4e48\u662f Redux<\/strong>\uff1a\u6211\u4eec\u89e3\u91ca\u4e86 Redux \u662f\u4ec0\u4e48\uff0c\u4ee5\u53ca\u5b83\u5982\u4f55\u7528\u4e8e\u7ba1\u7406 JavaScript \u5e94\u7528\u7a0b\u5e8f\u7684\u72b6\u6001\u3002<\/li>\n\n\n\n<li><strong>Redux \u7684\u5de5\u4f5c\u539f\u7406<\/strong>\uff1a\u6211\u4eec\u8ba8\u8bba\u4e86 Redux \u7684\u4e3b\u8981\u90e8\u5206\uff08actions\u3001reducers \u548c store\uff09\uff0c\u4ee5\u53ca\u5b83\u4eec\u5982\u4f55\u4e00\u8d77\u5de5\u4f5c\u6765\u7ba1\u7406\u72b6\u6001\u3002<\/li>\n\n\n\n<li><strong>\u5982\u4f55\u4f7f\u7528 Redux<\/strong>\uff1a\u6211\u4eec\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u5982\u4f55\u521b\u5efa\u548c\u53d1\u9001 actions\uff0c\u5982\u4f55\u5b9a\u4e49\u548c\u4f7f\u7528 reducers\uff0c\u4ee5\u53ca\u5982\u4f55\u521b\u5efa\u548c\u4f7f\u7528 store\u3002\u6211\u4eec\u8fd8\u8ba8\u8bba\u4e86\u5982\u4f55\u8ba2\u9605 store\uff0c\u5982\u4f55\u66f4\u65b0\u72b6\u6001\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528 react-redux \u5e93\u5c06 Redux \u4e0e React \u96c6\u6210\u3002<\/li>\n\n\n\n<li><strong>Redux \u4e2d\u95f4\u4ef6<\/strong>\uff1a\u6211\u4eec\u89e3\u91ca\u4e86\u4ec0\u4e48\u662f Redux \u4e2d\u95f4\u4ef6\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528 Redux Thunk \u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li><strong>Redux DevTools<\/strong>\uff1a\u6211\u4eec\u4ecb\u7ecd\u4e86\u5982\u4f55\u5b89\u88c5\u548c\u914d\u7f6e Redux DevTools\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u8fdb\u884c\u8c03\u8bd5\u3002<\/li>\n\n\n\n<li><strong>\u8bbe\u8ba1 Redux \u5e94\u7528\u7a0b\u5e8f<\/strong>\uff1a\u6211\u4eec\u901a\u8fc7\u5b9e\u4f8b\u89e3\u91ca\u4e86\u5982\u4f55\u8bbe\u8ba1 actions \u548c reducers\uff0c\u5982\u4f55\u521b\u5efa store \u548c React \u7ec4\u4ef6\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528 Redux \u8fdb\u884c\u72b6\u6001\u7ba1\u7406\u3002\u6211\u4eec\u8fd8\u8ba8\u8bba\u4e86 Redux \u7684\u4e00\u4e9b\u6700\u4f73\u5b9e\u8df5\uff0c\u5305\u62ec\u72b6\u6001\u89c4\u8303\u5316\u3001\u4f7f\u7528\u9009\u62e9\u5668\u548c\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li><strong>Redux Toolkit<\/strong>\uff1a\u6700\u540e\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86 Redux Toolkit\uff0c\u8fd9\u662f Redux \u56e2\u961f\u5f00\u53d1\u7684\u4e00\u5957\u7528\u4e8e\u7b80\u5316 Redux \u4f7f\u7528\u7684\u5de5\u5177\u96c6\u3002\u6211\u4eec\u8ba8\u8bba\u4e86\u5982\u4f55\u4f7f\u7528 <code>createSlice()<\/code> \u521b\u5efa reducers \u548c actions\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528 <code>configureStore()<\/code> \u521b\u5efa store\u3002\u6211\u4eec\u8fd8\u901a\u8fc7\u5b9e\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 Redux Toolkit \u91cd\u6784 Redux \u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u4e2a\u6559\u7a0b\u65e8\u5728\u63d0\u4f9b\u4e00\u4e2a\u5168\u9762\u7684 Redux \u7b80\u4ecb\uff0c\u8ba9\u4f60\u80fd\u7406\u89e3\u548c\u4f7f\u7528 Redux \u7ba1\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u72b6\u6001\u3002\u5e0c\u671b\u4f60\u80fd\u4ece\u4e2d\u53d7\u76ca\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-2603","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\/2603","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=2603"}],"version-history":[{"count":1,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/2603\/revisions"}],"predecessor-version":[{"id":2604,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/2603\/revisions\/2604"}],"wp:attachment":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}