{"id":37888,"date":"2023-05-17T14:06:16","date_gmt":"2022-12-21T17:10:39","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91%e5%85%b3%e4%ba%8ereact-hooks\/"},"modified":"2024-04-30T04:37:26","modified_gmt":"2024-04-29T20:37:26","slug":"%e3%80%90react%e3%80%91%e5%85%b3%e4%ba%8ereact-hooks","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90react%e3%80%91%e5%85%b3%e4%ba%8ereact-hooks\/","title":{"rendered":"\u3010React\u3011\u5173\u4e8eReact Hooks"},"content":{"rendered":"

\u9996\u5148<\/h2>\n

\u672c\u6587\u662f\u4e00\u4e2a\u521a\u5f00\u59cb\u5b66\u4e60\u7f16\u7a0b\u4e00\u4e2a\u6708\u7684\u521d\u5b66\u8005\u5bf9\u4e8e\u5b66\u4e60\u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u95ee\u9898\u8fdb\u884c\u8c03\u67e5\u6574\u7406\u5e76\u540c\u65f6\u8bb0\u5f55\u4e0b\u6765\u7684\u4e00\u4efd\u5907\u5fd8\u5f55\u3002
\n\u56e0\u6b64\uff0c\u6587\u7ae0\u5185\u5bb9\u53ef\u80fd\u5305\u542b\u9519\u8bef\u4e4b\u5904\uff0c\u8bf7\u8c05\u89e3\u3002
\n\u5982\u679c\u60a8\u53d1\u73b0\u9519\u8bef\uff0c\u8bf7\u4e0d\u541d\u6307\u6b63\uff0c\u4e0d\u80dc\u611f\u6fc0\u3002<\/p>\n

React \u521d\u5b66\u8005\u6307\u5357<\/h2>\n

React Hooks\u662f\u4ec0\u4e48<\/h3>\n

\u4ee5\u524d\uff0c\u72b6\u6001\u548c\u751f\u547d\u5468\u671f\u53ea\u80fd\u5728\u7c7b\u7ec4\u4ef6\u4e2d\u4f7f\u7528\uff0c\u4f46\u73b0\u5728\u51fd\u6570\u7ec4\u4ef6\u4e5f\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9b\u529f\u80fd\u4e86\u3002\u901a\u8fc7\u4f7f\u7528\u94a9\u5b50\uff08Hook\uff09\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u7b80\u6d01\u5730\u7f16\u5199\u4ee3\u7801\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u4e3b\u8981\u4eae\u70b9\u7684\u6982\u8ff0\u3002<\/p>\n

\u4f7f\u7528useState()
\n\u4f7f\u7528useEffect()<\/p>\n

\u4f7f\u7528useState\u7684\u65b9\u6cd5<\/h3>\n

\u60a8\u53ef\u4ee5\u5728\u51fd\u6570\u7ec4\u4ef6\u4e2d\u4f7f\u7528\u672c\u5730\u72b6\u6001\u3002<\/p>\n

\/\/ useState\u3092\u30a4\u30f3\u30dd\u30fc\u30c8<\/span>\r\nimport<\/span> React<\/span>,<\/span> {<\/span> useState<\/span> }<\/span> from<\/span> '<\/span>react<\/span>'<\/span>;<\/span>\r\n\r\n\/\/ \u5ba3\u8a00<\/span>\r\nconst<\/span> [<\/span>state\u5909\u6570\u540d<\/span>,<\/span> state\u66f4\u65b0\u95a2\u6570\u540d<\/span>]<\/span> =<\/span> useState<\/span>(<\/span>state\u521d\u671f\u5024<\/span>)<\/span>\r\n\r\n\/\/ state\u306e\u547c\u3073\u51fa\u3057<\/span>\r\n{<\/span> state\u5909\u6570\u540d<\/span> }<\/span>\r\n\r\n<\/code><\/pre>\n
\u4f7f\u7528useEffect\u7684\u65b9\u6cd5\u3002<\/h3>\n
\u4f5c\u4e3a\u751f\u547d\u5468\u671f\u65b9\u6cd5\u7684\u66ff\u4ee3\uff0c\u53ef\u4ee5\u5728\u51fd\u6570\u7ec4\u4ef6\u4e2d\u4f7f\u7528\u3002
\n\u5177\u4f53\u6765\u8bf4\uff0c\u53ef\u4ee5\u7528\u4f5c\u4ee5\u4e0b\u65b9\u6cd5\u7684\u66ff\u4ee3\uff1a
\ncomponentDidMount()
\ncomponentDidUpdate()
\ncomponentWillUnmount()<\/p>\n
\/\/ \u30ec\u30f3\u30c0\u30fc\u6bce\u306b\u5b9f\u884c\u3059\u308b\u5834\u5408<\/span>\r\nuseEffect<\/span>(()<\/span> =><\/span> {<\/span>\r\n  \/\/ \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u30ec\u30f3\u30c0\u30fc\u3055\u308c\u308b\u6642\uff08\u518d\u30ec\u30f3\u30c0\u30fc\u542b\u3080\uff09\u306b\u5b9f\u884c<\/span>\r\n  return<\/span> ()<\/span> =><\/span> {<\/span>\r\n    \/\/ \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u7834\u68c4\u3055\u308c\u308b\u6642\u306b\u5b9f\u884c<\/span>\r\n  }<\/span>\r\n})<\/span>\r\n\r\n\/\/ \u30de\u30a6\u30f3\u30c8\u6642\u306e\u307f\u5b9f\u884c\u3059\u308b\u5834\u5408<\/span>\r\nuseEffect<\/span>(()<\/span> =><\/span> {<\/span>\r\n  \/\/ \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u30ec\u30f3\u30c0\u30fc\u3055\u308c\u308b\u6642\u306b\u5b9f\u884c<\/span>\r\n},<\/span> [])<\/span>\r\n\r\n\/\/ \u7279\u5b9a\u306estate\u3084props\u304c\u66f4\u65b0\u3055\u308c\u305f\u6642\u306b\u5b9f\u884c\u3059\u308b\u5834\u5408<\/span>\r\nuseEffect<\/span>(()<\/span> =><\/span> {<\/span>\r\n  \/\/ \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u30ec\u30f3\u30c0\u30fc\u3055\u308c\u308b\u6642\u306b\u5b9f\u884c\u3055\u308c\u308b\u3002<\/span>\r\n  return<\/span> ()<\/span> =><\/span> {<\/span>\r\n    \/\/ \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u7834\u68c4\u3055\u308c\u308b\u6642\u306b\u5b9f\u884c\u3055\u308c\u308b\u3002<\/span>\r\n  }<\/span>\r\n},<\/span> [<\/span>\u5909\u66f4\u3055\u308c\u308bstate\u3084props<\/span>])<\/span>\r\n\r\n\r\n\/\/ \u30de\u30a6\u30f3\u30c8\u6642\u3068\u30a2\u30f3\u30de\u30a6\u30f3\u30c8\u6642\u306e\u307f\u5b9f\u884c\u3059\u308b\u5834\u5408<\/span>\r\nuseEffect<\/span>(()<\/span> =><\/span> {<\/span>\r\n  \/\/ \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u30ec\u30f3\u30c0\u30fc\u3055\u308c\u308b\u6642\u306b\u5b9f\u884c\u3055\u308c\u308b\u3002<\/span>\r\n  return<\/span> ()<\/span> =><\/span> {<\/span>\r\n    \/\/ \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u7834\u68c4\u3055\u308c\u308b\u6642\u306b\u5b9f\u884c\u3055\u308c\u308b\u3002<\/span>\r\n  }<\/span>\r\n},<\/span> [])<\/span>\r\n\r\n\r\n<\/code><\/pre>\n
\u603b\u7ed3<\/h2>\n
    \n
  • \n
      hook\u306fstate\u3084\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u3092\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3082\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308b\u6a5f\u80fd<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          useState()\u306fstate\u306e\u4ee3\u66ff<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            useEffect()\u306f\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u30e1\u30bd\u30c3\u30c9\u306e\u4ee3\u66ff<\/ul>\n","protected":false},"excerpt":{"rendered":"
            \u9996\u5148 \u672c\u6587\u662f\u4e00\u4e2a\u521a\u5f00\u59cb\u5b66\u4e60\u7f16\u7a0b\u4e00\u4e2a\u6708\u7684\u521d\u5b66\u8005\u5bf9\u4e8e\u5b66\u4e60\u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u95ee\u9898\u8fdb\u884c\u8c03\u67e5\u6574\u7406\u5e76\u540c\u65f6\u8bb0\u5f55\u4e0b\u6765\u7684\u4e00\u4efd\u5907\u5fd8\u5f55\u3002  […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-37888","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u3010React\u3011\u5173\u4e8eReact Hooks - 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\/\u3010react\u3011\u5173\u4e8ereact-hooks\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010React\u3011\u5173\u4e8eReact Hooks\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u672c\u6587\u662f\u4e00\u4e2a\u521a\u5f00\u59cb\u5b66\u4e60\u7f16\u7a0b\u4e00\u4e2a\u6708\u7684\u521d\u5b66\u8005\u5bf9\u4e8e\u5b66\u4e60\u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u95ee\u9898\u8fdb\u884c\u8c03\u67e5\u6574\u7406\u5e76\u540c\u65f6\u8bb0\u5f55\u4e0b\u6765\u7684\u4e00\u4efd\u5907\u5fd8\u5f55\u3002 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010react\u3011\u5173\u4e8ereact-hooks\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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