{"id":38401,"date":"2023-05-14T10:58:10","date_gmt":"2022-07-23T03:21:43","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/react%e7%9a%84%e4%b8%8d%e5%8f%af%e5%8f%98%e6%80%a7%ef%bc%9a%e5%ae%89%e5%85%a8%e6%9b%b4%e6%96%b0%e7%8a%b6%e6%80%81%e5%92%8c%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e3%80%82\/"},"modified":"2024-01-15T09:54:47","modified_gmt":"2024-01-15T01:54:47","slug":"react%e7%9a%84%e4%b8%8d%e5%8f%af%e5%8f%98%e6%80%a7%ef%bc%9a%e5%ae%89%e5%85%a8%e6%9b%b4%e6%96%b0%e7%8a%b6%e6%80%81%e5%92%8c%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/react%e7%9a%84%e4%b8%8d%e5%8f%af%e5%8f%98%e6%80%a7%ef%bc%9a%e5%ae%89%e5%85%a8%e6%9b%b4%e6%96%b0%e7%8a%b6%e6%80%81%e5%92%8c%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e3%80%82\/","title":{"rendered":"React\u7684\u4e0d\u53ef\u53d8\u6027\uff1a\u5b89\u5168\u66f4\u65b0\u72b6\u6001\u548c\u6027\u80fd\u4f18\u5316"},"content":{"rendered":"

React\u7684\u4e0d\u53ef\u53d8\u6027\uff1a\u5b89\u5168\u66f4\u65b0\u72b6\u6001\u548c\u4f18\u5316\u6027\u80fd\u3002<\/h1>\n

\u9644\u5f55<\/h2>\n
    \n
  1. \n
      \u9996\u5148<\/ol>\n<\/li>\n<\/ol>\n

      React\u548c\u4e0d\u53d8\u6027\u7684\u91cd\u8981\u6027
      \n\u4e0d\u53d8\u6027\u5e26\u6765\u7684\u597d\u5904<\/p>\n

      \u57fa\u672c\u7684\u4e0d\u53ef\u53d8\u6027\u4fdd\u62a4<\/p>\n

      \u4f7f\u7528\u6269\u5c55\u8fd0\u7b97\u7b26\u8fdb\u884c\u6d45\u590d\u5236
      \n\u4f7f\u7528\u72b6\u6001\u66f4\u65b0\u51fd\u6570\u8fdb\u884c\u51fd\u6570\u5f0f\u66f4\u65b0
      \n\u7b80\u5355\u7684\u5b9e\u73b0\u793a\u4f8b<\/p>\n

      \u5d4c\u5957\u5bf9\u8c61\u548c\u6570\u7ec4\u7684\u4e0d\u53ef\u53d8\u6027<\/p>\n

      \u6df1\u590d\u5236\u7684\u5fc5\u8981\u6027
      \n\u95ee\u9898\u5b9e\u4f8b
      \n\u95ee\u9898\u89e3\u51b3<\/p>\n

      \u4fdd\u6301\u4e0d\u53d8\u6027\u7684\u5de5\u5177\u548c\u5e93<\/p>\n

      \u4ecb\u7ecd\u548c\u4f7f\u7528Immer
      \n\u5176\u4ed6\u5b9e\u7528\u51fd\u6570\u548c\u5e93<\/p>\n

      \u4e0d\u53d8\u6027\u548c\u89c4\u8303\u5316<\/p>\n

      \u6570\u636e\u7ed3\u6784\u7684\u89c4\u8303\u5316\u53ca\u5176\u4f18\u70b9
      \n\u5982\u4f55\u5904\u7406\u89c4\u8303\u5316\u7684\u6570\u636e<\/p>\n

      \u5b9e\u9645\u95ee\u9898\u89e3\u51b3\u793a\u4f8b<\/p>\n

      \u4e0d\u4fdd\u6301\u4e0d\u53ef\u53d8\u6027\u7684\u95ee\u9898
      \n\u901a\u8fc7\u6b63\u786e\u7684\u72b6\u6001\u66f4\u65b0\u89e3\u51b3\u95ee\u9898<\/p>\n

      \u603b\u7ed3<\/p>\n

      \u9996\u5148<\/h2>\n

      \u5728React\u7684\u4e16\u754c\u4e2d\uff0c\u4e0d\u53d8\u6027\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5\u3002\u5b83\u53ef\u4ee5\u5b89\u5168\u5730\u7ba1\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u72b6\u6001\uff0c\u4f18\u5316\u6027\u80fd\uff0c\u5e76\u9884\u9632\u9519\u8bef\u3002<\/p>\n

      React\u548c\u4e0d\u53d8\u6027\u7684\u91cd\u8981\u6027<\/h3>\n

      React\u4f7f\u7528\u6d45\u6bd4\u8f83\u6765\u68c0\u6d4b\u72b6\u6001\u7684\u53d8\u5316\uff0c\u5305\u62ec\u5bf9\u8c61\u548c\u6570\u7ec4\u3002\u901a\u8fc7\u4fdd\u6301\u4e0d\u53ef\u53d8\u6027\uff0cReact\u53ef\u4ee5\u6709\u6548\u5730\u68c0\u6d4b\u72b6\u6001\u7684\u53d8\u5316\uff0c\u5e76\u9002\u5f53\u5730\u91cd\u65b0\u6e32\u67d3\u76f8\u5173\u7ec4\u4ef6\u3002<\/p>\n

      \u4e0d\u53d8\u6027\u5e26\u6765\u7684\u597d\u5904<\/h3>\n

      \u4e0d\u53d8\u6027\u80fd\u591f\u6e05\u6670\u53ef\u9884\u6d4b\u5730\u6539\u53d8\u72b6\u6001\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u6b64\u5916\uff0c\u4e0d\u53d8\u6027\u8fd8\u80fd\u6539\u5584React\u7684\u91cd\u65b0\u6e32\u67d3\u6027\u80fd\uff0c\u5e2e\u52a9\u907f\u514d\u610f\u5916\u7684\u9519\u8bef\u3002<\/p>\n

      2. \u4fdd\u6301\u57fa\u672c\u7684\u4e0d\u53ef\u6539\u53d8\u6027<\/h2>\n

      \u5728\u66f4\u65b0React\u7684\u72b6\u6001\u65f6\uff0c\u59cb\u7ec8\u521b\u5efa\u65b0\u7684\u5bf9\u8c61\u6216\u6570\u7ec4\u662f\u5f88\u91cd\u8981\u7684\u3002<\/p>\n

      \u5229\u7528\u6d45\u62f7\u8d1d\u7684\u6269\u5c55\u64cd\u4f5c\u7b26<\/h3>\n

      \u6269\u5c55\u8fd0\u7b97\u7b26\u5728\u521b\u5efa\u5bf9\u8c61\u6216\u6570\u7ec4\u7684\u6d45\u62f7\u8d1d\u4ee5\u53ca\u6dfb\u52a0\u6216\u4fee\u6539\u65b0\u5c5e\u6027\u548c\u5143\u7d20\u65f6\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n

      setForm<\/span>(<\/span>prevForm<\/span> =><\/span> ({<\/span>\r\n  ...<\/span>prevForm<\/span>,<\/span>\r\n  key<\/span>:<\/span> newValue<\/span>\r\n}));<\/span>\r\n<\/code><\/pre>\n
      \u5229\u7528\u51fd\u6570\u5f0f\u66f4\u65b0\u7684\u72b6\u6001\u66f4\u65b0\u51fd\u6570\u3002<\/h3>\n
      \u5728useState\u548cuseReducer\u94a9\u5b50\u4e2d\uff0c\u901a\u8fc7\u4f20\u9012\u51fd\u6570\u53ef\u4ee5\u57fa\u4e8e\u5148\u524d\u7684\u72b6\u6001\u6765\u8ba1\u7b97\u65b0\u72b6\u6001\u3002<\/p>\n
      setCount<\/span>(<\/span>prevCount<\/span> =><\/span> prevCount<\/span> +<\/span> 1<\/span>);<\/span>\r\n<\/code><\/pre>\n
      \u7b80\u5355\u7684\u5b9e\u65bd\u793a\u4f8b<\/h3>\n
      \u4e0b\u9762\u662f\u4f7f\u7528React\u7684useState\u94a9\u5b50\u6765\u4ee5\u4e0d\u53ef\u53d8\u65b9\u5f0f\u66f4\u65b0\u72b6\u6001\u7684\u793a\u4f8b\u3002<\/p>\n
      \u8fd9\u662f\u4e2a\u4ee4\u4eba\u6cae\u4e27\u7684\u4f8b\u5b50\u3002<\/p>\n
      import<\/span> React<\/span>,<\/span> {<\/span> useState<\/span> }<\/span> from<\/span> '<\/span>react<\/span>'<\/span>;<\/span>\r\n\r\nfunction<\/span> Counter<\/span>()<\/span> {<\/span>\r\n  const<\/span> [<\/span>count<\/span>,<\/span> setCount<\/span>]<\/span> =<\/span> useState<\/span>(<\/span>0<\/span>);<\/span>\r\n\r\n  const<\/span> increment<\/span> =<\/span> ()<\/span> =><\/span> {<\/span>\r\n    setCount<\/span>(<\/span>prevCount<\/span> =><\/span> prevCount<\/span> +<\/span> 1<\/span>);<\/span>\r\n  };<\/span>\r\n\r\n  return <\/span>(<\/span>\r\n    <<\/span>div<\/span>><\/span>\r\n      <<\/span>p<\/span>><\/span>Count<\/span>:<\/span> {<\/span>count<\/span>}<\/span><<\/span>\/p<\/span>>\r\n<\/span>      <<\/span>button<\/span> onClick<\/span>=<\/span>{<\/span>increment<\/span>}<\/span>><\/span>Increment<\/span><<\/span>\/button<\/span>>\r\n<\/span>    <<\/span>\/div<\/span>>\r\n<\/span>  );<\/span>\r\n}<\/span>\r\n\r\nexport<\/span> default<\/span> Counter<\/span>;<\/span>\r\n<\/code><\/pre>\n
      \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cincrement\u51fd\u6570\u901a\u8fc7\u4f7f\u7528setCount\u51fd\u6570\u6765\u4e0d\u53ef\u53d8\u5730\u66f4\u65b0count\u7684\u72b6\u6001\u3002<\/p>\n
      3. \u5d4c\u5957\u5bf9\u8c61\u548c\u6570\u7ec4\u7684\u4e0d\u53d8\u6027\u3002<\/h2>\n
      \u5728\u5904\u7406\u5d4c\u5957\u5bf9\u8c61\u548c\u6570\u7ec4\u65f6\uff0c\u4fdd\u6301\u4e0d\u53d8\u6027\u5c06\u53d8\u5f97\u66f4\u52a0\u56f0\u96be\u3002<\/p>\n
      \u6df1\u5ea6\u590d\u5236\u7684\u9700\u6c42<\/h3>\n
      \u5728React\u4e2d\u7684\u72b6\u6001\u7ba1\u7406\u4e2d\uff0c\u5f53\u5904\u7406\u5d4c\u5957\u5bf9\u8c61\u6216\u6570\u7ec4\u65f6\uff0c\u4ec5\u8fdb\u884c\u6d45\u62f7\u8d1d\u53ef\u80fd\u4e0d\u591f\uff0c\u53ef\u80fd\u9700\u8981\u8fdb\u884c\u6df1\u62f7\u8d1d\u3002\u6d45\u62f7\u8d1d\u53ea\u4f1a\u4fdd\u7559\u5d4c\u5957\u5bf9\u8c61\u7684\u5f15\u7528\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u4e0d\u53d7\u9884\u671f\u7684\u72b6\u6001\u66f4\u6539\u6216\u9519\u8bef\u3002<\/p>\n
      \u95ee\u9898\u6848\u4f8b<\/h3>\n
      \u4ee5\u524d\uff0c\u5f53\u6211\u4f7f\u7528useState\u94a9\u5b50\u6765\u7ba1\u7406\u8868\u5355\u72b6\u6001\u65f6\uff0c\u6211\u9700\u8981\u66f4\u65b0\u7279\u5b9a\u9644\u4ef6\u7684\u72b6\u6001\u3002\u7136\u800c\uff0c\u5f53\u6211\u5199\u4e0b\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\u65f6\uff0c\u51fa\u73b0\u4e86\u95ee\u9898\u3002<\/p>\n
      const<\/span> [<\/span>form<\/span>,<\/span> setForm<\/span>]<\/span> =<\/span> useState<\/span>({<\/span>\r\n  name<\/span>:<\/span> ''<\/span>,<\/span>\r\n  attachments<\/span>:<\/span> [{<\/span> id<\/span>:<\/span> 1<\/span>,<\/span> status<\/span>:<\/span> 0<\/span> },<\/span> {<\/span> id<\/span>:<\/span> 2<\/span>,<\/span> status<\/span>:<\/span> 0<\/span> }]<\/span>\r\n});<\/span>\r\n\r\nconst<\/span> updateAttachmentStatus<\/span> =<\/span> (<\/span>id<\/span>,<\/span> newStatus<\/span>)<\/span> =><\/span> {<\/span>\r\n  const<\/span> newAttachments<\/span> =<\/span> [...<\/span>form<\/span>.<\/span>attachments<\/span>];<\/span>\r\n  const<\/span> attachment<\/span> =<\/span> newAttachments<\/span>.<\/span>find<\/span>(<\/span>attachment<\/span> =><\/span> attachment<\/span>.<\/span>id<\/span> ===<\/span> id<\/span>);<\/span>\r\n  attachment<\/span>.<\/span>status<\/span> =<\/span> newStatus<\/span>;<\/span>\r\n  setForm<\/span>({<\/span> ...<\/span>form<\/span>,<\/span> attachments<\/span>:<\/span> newAttachments<\/span> });<\/span>\r\n};<\/span>\r\n<\/code><\/pre>\n
      \u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86newAttachments\u4f5c\u4e3aform.attachments\u7684\u6d45\u62f7\u8d1d\u3002\u7136\u800c\uff0c\u5728attachment.status = newStatus;\u8fd9\u4e00\u884c\u4e2d\uff0c\u6211\u4eec\u76f4\u63a5\u4fee\u6539\u4e86\u539f\u59cb\u7684form.attachments\u5bf9\u8c61\u3002\u8fd9\u662f\u56e0\u4e3anewAttachments\u6570\u7ec4\u4e2d\u7684\u5bf9\u8c61\u6301\u6709\u4e0e\u539f\u59cb\u7684form.attachments\u6570\u7ec4\u5bf9\u8c61\u76f8\u540c\u7684\u5f15\u7528\u3002<\/p>\n
      \u7531\u4e8e\u8fd9\u4e2a\u95ee\u9898\u7684\u7ed3\u679c\uff0c\u8868\u5355\u7684\u72b6\u6001\u88ab\u610f\u5916\u5730\u66f4\u65b0\uff0c\u5e76\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u51fa\u73b0\u4e86\u9519\u8bef\u3002<\/p>\n
      \u89e3\u51b3\u95ee\u9898<\/h3>\n
      \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684\u5bf9\u8c61\uff0c\u800c\u4e0d\u662f\u521b\u5efaform.attachments\u5bf9\u8c61\u7684\u6df1\u62f7\u8d1d\u3002\u6211\u4f7f\u7528\u4e86\u72b6\u6001\u66f4\u65b0\u51fd\u6570\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n
      const<\/span> updateAttachmentStatus<\/span> =<\/span> (<\/span>id<\/span>,<\/span> newStatus<\/span>)<\/span> =><\/span> {<\/span>\r\n  setForm<\/span>(<\/span>prevForm<\/span> =><\/span> ({<\/span>\r\n    ...<\/span>prevForm<\/span>,<\/span>\r\n    attachments<\/span>:<\/span> prevForm<\/span>.<\/span>attachments<\/span>.<\/span>map<\/span>(<\/span>attachment<\/span> =><\/span> \r\n      attachment<\/span>.<\/span>id<\/span> ===<\/span> id<\/span> ?<\/span> {<\/span> ...<\/span>attachment<\/span>,<\/span> status<\/span>:<\/span> newStatus<\/span> }<\/span> :<\/span> attachment<\/span>\r\n    )<\/span>\r\n  }));<\/span>\r\n};<\/span>\r\n<\/code><\/pre>\n
      \u5728\u8fd9\u4e2aupdateAttachmentStatus\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528setForm\u51fd\u6570\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u7684form\u5bf9\u8c61\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528prevForm.attachments.map\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u7684attachments\u6570\u7ec4\uff0c\u5e76\u66f4\u65b0\u5177\u6709\u6307\u5b9aid\u7684\u9644\u4ef6\u7684\u72b6\u6001\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u6211\u4eec\u4fdd\u6301\u4e86prevForm\u548cprevForm.attachments\u7684\u4e0d\u53ef\u53d8\u6027\uff0c\u53ea\u66f4\u65b0\u4e86\u6307\u5b9a\u9644\u4ef6\u7684\u72b6\u6001\u3002<\/p>\n
      \u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u6211\u4eec\u80fd\u591f\u5728\u4fdd\u6301\u539f\u59cb\u8868\u5355\u548c\u8868\u5355\u9644\u4ef6\u5bf9\u8c61\u7684\u4e0d\u53ef\u53d8\u6027\u7684\u540c\u65f6\uff0c\u5b89\u5168\u6709\u6548\u5730\u66f4\u65b0\u72b6\u6001\u3002\u6b64\u5916\uff0c\u8be5\u65b9\u6cd5\u8fd8\u89e3\u51b3\u4e86\u5e94\u7528\u7a0b\u5e8f\u7684\u6f0f\u6d1e\u95ee\u9898\u3002<\/p>\n
      4. \u4fdd\u6301\u4e0d\u53d8\u6027\u7684\u5de5\u5177\u548c\u5e93<\/h2>\n
      \u901a\u8fc7\u4f7f\u7528\u5de5\u5177\u548c\u5e93\u6765\u4fdd\u6301\u4e0d\u53d8\u6027\uff0c\u53ef\u4ee5\u8f7b\u677e\u4e14\u5b89\u5168\u5730\u8fdb\u884c\u72b6\u6001\u66f4\u65b0\u3002<\/p>\n
      4. \u4fdd\u6301\u4e0d\u53d8\u6027\u7684\u5de5\u5177\u548c\u5e93<\/h2>\n
      \u901a\u8fc7\u4f7f\u7528\u4fdd\u6301\u4e0d\u53d8\u6027\u7684\u5de5\u5177\u6216\u5e93\uff0c\u53ef\u4ee5\u8f7b\u677e\u4e14\u5b89\u5168\u5730\u8fdb\u884c\u72b6\u6001\u66f4\u65b0\u3002<\/p>\n
      Immer\u7684\u4ecb\u7ecd\u548c\u4f7f\u7528\u793a\u4f8b\u3002<\/h3>\n
      Immer\u662f\u4e00\u4e2a\u7528\u4e8e\u7b80\u5316\u4e0d\u53ef\u53d8\u72b6\u6001\u66f4\u65b0\u7684\u5e93\u3002\u5728\u521b\u5efa\u5d4c\u5957\u5bf9\u8c61\u6216\u6570\u7ec4\u7684\u6df1\u5c42\u526f\u672c\u65f6\u975e\u5e38\u6709\u7528\u3002Immer\u63d0\u4f9b\u4e86\u201c\u865a\u62df\u526f\u672c\u201d\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u7f16\u5199\u50cf\u8fdb\u884c\u7a81\u53d8\u4e00\u6837\u7684\u4ee3\u7801\uff0c\u4f46\u5b9e\u9645\u4e0a\u4f1a\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u4e0d\u53ef\u53d8\u5bf9\u8c61\uff0c\u800c\u539f\u59cb\u5bf9\u8c61\u4e0d\u4f1a\u88ab\u4fee\u6539\u3002<\/p>\n
      import<\/span> produce<\/span> from<\/span> \"<\/span>immer<\/span>\"<\/span>;<\/span>\r\n\r\nconst<\/span> nextState<\/span> =<\/span> produce<\/span>(<\/span>currentState<\/span>,<\/span> draft<\/span> =><\/span> {<\/span>\r\n    draft<\/span>.<\/span>nested<\/span>.<\/span>field<\/span> =<\/span> '<\/span>newValue<\/span>'<\/span>;<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
      \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u4f3c\u4e4e\u66f4\u65b0\u4e86currentState\u4e2d\u7684nested.field\uff0c\u4f46\u5b9e\u9645\u4e0a\u751f\u6210\u4e86\u4e00\u4e2a\u65b0\u7684\u5bf9\u8c61nextState\uff0c\u5e76\u4e14currentState\u6ca1\u6709\u88ab\u4fee\u6539\u3002\u8fd9\u662f\u56e0\u4e3aproduce\u51fd\u6570\u521b\u5efa\u4e86currentState\u7684\u6df1\u62f7\u8d1d\uff0c\u5e76\u5c06\u5bf9\u62f7\u8d1d\u7684\u66f4\u6539\u53cd\u6620\u5230nextState\u4e2d\u3002<\/p>\n
      \u6b64\u5916\uff0c\u5728\u66f4\u65b0React\u72b6\u6001\u65f6\u4e5f\u53ef\u4ee5\u4f7f\u7528Immer\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528React\u7684useState hook\u548cImmer\u7684produce\u51fd\u6570\u7ec4\u5408\u7684\u793a\u4f8b\uff0c\u7528\u4e8e\u66f4\u65b0\u5d4c\u5957\u5bf9\u8c61\u7684\u72b6\u6001\u3002<\/p>\n
      import<\/span> React<\/span>,<\/span> {<\/span> useState<\/span> }<\/span> from<\/span> '<\/span>react<\/span>'<\/span>;<\/span>\r\nimport<\/span> produce<\/span> from<\/span> \"<\/span>immer<\/span>\"<\/span>;<\/span>\r\n\r\nfunction<\/span> App<\/span>()<\/span> {<\/span>\r\n  const<\/span> [<\/span>state<\/span>,<\/span> setState<\/span>]<\/span> =<\/span> useState<\/span>({<\/span>\r\n    nested<\/span>:<\/span> {<\/span> field<\/span>:<\/span> '<\/span>oldValue<\/span>'<\/span> }<\/span>\r\n  });<\/span>\r\n\r\n  const<\/span> updateField<\/span> =<\/span> ()<\/span> =><\/span> {<\/span>\r\n    setState<\/span>(<\/span>prevState<\/span> =><\/span> produce<\/span>(<\/span>prevState<\/span>,<\/span> draft<\/span> =><\/span> {<\/span>\r\n      draft<\/span>.<\/span>nested<\/span>.<\/span>field<\/span> =<\/span> '<\/span>newValue<\/span>'<\/span>;<\/span>\r\n    }));<\/span>\r\n  };<\/span>\r\n\r\n  return <\/span>(<\/span>\r\n    <<\/span>div<\/span>><\/span>\r\n      <<\/span>button<\/span> onClick<\/span>=<\/span>{<\/span>updateField<\/span>}<\/span>><\/span>Update<\/span> Field<\/span><<\/span>\/button<\/span>>\r\n<\/span>      <<\/span>p<\/span>><\/span>{<\/span>state<\/span>.<\/span>nested<\/span>.<\/span>field<\/span>}<\/span><<\/span>\/p<\/span>>\r\n<\/span>    <<\/span>\/div<\/span>>\r\n<\/span>  );<\/span>\r\n}<\/span>\r\n\r\nexport<\/span> default<\/span> App<\/span>;<\/span>\r\n<\/code><\/pre>\n
      \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cupdateField\u51fd\u6570\u4f7f\u7528setState\u51fd\u6570\u548cproduce\u51fd\u6570\u6765\u5c06state.nested.field\u7684\u503c\u66f4\u65b0\u4e3a’newValue’\u3002\u540c\u65f6\uff0c\u5728\u4fdd\u6301state\u5bf9\u8c61\u4e0d\u53d8\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u5b89\u5168\u6709\u6548\u5730\u66f4\u65b0\u5d4c\u5957\u5b57\u6bb5\u7684\u503c\u3002<\/p>\n
      \u5176\u4ed6\u5b9e\u7528\u51fd\u6570\u548c\u5e93<\/h3>\n
      \u9664\u6b64\u4e4b\u5916\uff0c\u8fd8\u6709\u8bb8\u591a\u5b9e\u7528\u51fd\u6570\u548c\u5e93\u53ef\u4ee5\u5e2e\u52a9\u6709\u6548\u5730\u66f4\u65b0\u72b6\u6001\uff0c\u540c\u65f6\u4fdd\u6301\u4e0d\u53d8\u6027\u3002<\/p>\n
      5. Immutable and normalization. (\u4e0d\u53d8\u6027\u548c\u89c4\u8303\u5316)<\/h2>\n
      \u8003\u8651\u5c06\u6570\u636e\u89c4\u8303\u5316\u5e76\u4f7f\u7528\u7b80\u5355\u7684\u5bf9\u8c61\u6216\u6570\u7ec4\uff0c\u800c\u4e0d\u662f\u590d\u6742\u7684\u5d4c\u5957\u6570\u636e\u7ed3\u6784\u3002<\/p>\n
      \u597d\u5427\u3002<\/p>\n
      \u6570\u636e\u7ed3\u6784\u7684\u89c4\u8303\u5316\u53ca\u5176\u4f18\u70b9<\/h3>\n
      \u6b63\u5219\u5316\u6709\u52a9\u4e8e\u51cf\u5c11\u6570\u636e\u7684\u5197\u4f59\u6027\uff0c\u4fdd\u6301\u6570\u636e\u7684\u4e00\u81f4\u6027\uff0c\u5e76\u7b80\u5316\u72b6\u6001\u66f4\u65b0\u3002<\/p>\n
      \u5904\u7406\u89c4\u8303\u5316\u7684\u6570\u636e<\/h3>\n
      \u6b63\u89c4\u5316\u7684\u6570\u636e\u53ef\u4ee5\u8f7b\u677e\u8fdb\u884c\u72b6\u6001\u66f4\u65b0\u548c\u4fdd\u6301\u4e0d\u53d8\u6027\u3002<\/p>\n
      6. \u89e3\u51b3\u5b9e\u9645\u95ee\u9898\u7684\u4f8b\u5b50<\/h2>\n
      \u6211\u5c06\u63d0\u4f9b\u4e0d\u7b26\u5408\u4e0d\u53d8\u6027\u65f6\u51fa\u73b0\u7684\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6cd5\u7684\u5177\u4f53\u793a\u4f8b\u3002<\/p>\n
      \u5982\u679c\u4e0d\u4fdd\u6301\u4e0d\u53d8\u6027\u7684\u8bdd\uff0c\u4f1a\u6709\u95ee\u9898\u3002<\/h3>\n
      \u5982\u679c\u4e0d\u4fdd\u6301\u4e0d\u53d8\u6027\uff0c\u53ef\u80fd\u4f1a\u53d1\u751f\u610f\u6599\u4e4b\u5916\u7684\u9519\u8bef\u548c\u6027\u80fd\u95ee\u9898\u3002<\/p>\n
      \u901a\u8fc7\u6b63\u786e\u7684\u72b6\u6001\u66f4\u65b0\u6765\u89e3\u51b3\u95ee\u9898<\/h3>\n
      \u901a\u8fc7\u4fdd\u6301\u4e0d\u53d8\u6027\uff0c\u5e76\u521b\u5efa\u65b0\u7684\u5bf9\u8c61\u6216\u6570\u7ec4\u6765\u66f4\u65b0\u72b6\u6001\uff0c\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u3002<\/p>\n
      7. \u603b\u7ed3<\/h2>\n
      \u4fdd\u6301React\u4e2d\u7684\u4e0d\u53d8\u6027\u662f\u6709\u6548\u72b6\u6001\u7ba1\u7406\u548c\u6027\u80fd\u4f18\u5316\u7684\u5173\u952e\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u4e0d\u53d8\u6027\u7684\u57fa\u672c\u6982\u5ff5\u548c\u5b9e\u8df5\u65b9\u6cd5\uff0c\u5e2e\u52a9\u7406\u89e3\u5728React\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4e0d\u53d8\u6027\u7684\u91cd\u8981\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      React\u7684\u4e0d\u53ef\u53d8\u6027\uff1a\u5b89\u5168\u66f4\u65b0\u72b6\u6001\u548c\u4f18\u5316\u6027\u80fd\u3002 \u9644\u5f55 \u9996\u5148 React\u548c\u4e0d\u53d8\u6027\u7684\u91cd\u8981\u6027 \u4e0d\u53d8\u6027\u5e26\u6765\u7684\u597d\u5904 \u57fa\u672c […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38401","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nReact\u7684\u4e0d\u53ef\u53d8\u6027\uff1a\u5b89\u5168\u66f4\u65b0\u72b6\u6001\u548c\u6027\u80fd\u4f18\u5316 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/react\u7684\u4e0d\u53ef\u53d8\u6027\uff1a\u5b89\u5168\u66f4\u65b0\u72b6\u6001\u548c\u6027\u80fd\u4f18\u5316\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"React\u7684\u4e0d\u53ef\u53d8\u6027\uff1a\u5b89\u5168\u66f4\u65b0\u72b6\u6001\u548c\u6027\u80fd\u4f18\u5316\" \/>\n<meta property=\"og:description\" content=\"React\u7684\u4e0d\u53ef\u53d8\u6027\uff1a\u5b89\u5168\u66f4\u65b0\u72b6\u6001\u548c\u4f18\u5316\u6027\u80fd\u3002 \u9644\u5f55 \u9996\u5148 React\u548c\u4e0d\u53d8\u6027\u7684\u91cd\u8981\u6027 \u4e0d\u53d8\u6027\u5e26\u6765\u7684\u597d\u5904 \u57fa\u672c […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/react\u7684\u4e0d\u53ef\u53d8\u6027\uff1a\u5b89\u5168\u66f4\u65b0\u72b6\u6001\u548c\u6027\u80fd\u4f18\u5316\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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