{"id":38042,"date":"2023-06-14T09:01:48","date_gmt":"2023-11-05T22:44:49","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8-react-%e6%b8%b2%e6%9f%93%e6%97%b6%ef%bc%8c%e6%9c%89%e6%97%b6%e5%80%99-useeffect-%e4%bc%9a%e8%bf%90%e8%a1%8c%e4%b8%a4%e6%ac%a1%e3%80%82\/"},"modified":"2024-04-30T08:48:42","modified_gmt":"2024-04-30T00:48:42","slug":"%e5%9c%a8-react-%e6%b8%b2%e6%9f%93%e6%97%b6%ef%bc%8c%e6%9c%89%e6%97%b6%e5%80%99-useeffect-%e4%bc%9a%e8%bf%90%e8%a1%8c%e4%b8%a4%e6%ac%a1%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8-react-%e6%b8%b2%e6%9f%93%e6%97%b6%ef%bc%8c%e6%9c%89%e6%97%b6%e5%80%99-useeffect-%e4%bc%9a%e8%bf%90%e8%a1%8c%e4%b8%a4%e6%ac%a1%e3%80%82\/","title":{"rendered":"\u5728 React \u6e32\u67d3\u65f6\uff0c\u6709\u65f6\u5019 useEffect \u4f1a\u8fd0\u884c\u4e24\u6b21"},"content":{"rendered":"<h1>\u6709\u65f6\u5728React\u6e32\u67d3\u65f6\uff0cuseEffect\u4f1a\u8fd0\u884c\u4e24\u6b21\u3002<\/h1>\n<p>\u6709\u65f6\u5728React\u6e32\u67d3\u65f6\uff0cuseEffect\u53ef\u80fd\u4f1a\u8fd0\u884c\u4e24\u6b21\uff0c\u901a\u8fc7\u5728useEffect\u4e2d\u4f7f\u7528console.log\u53ef\u4ee5\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n<h2>\u6574\u7406\u73af\u5883<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">node v18.11.0<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">React 18.2.0<\/ul>\n<h2>\u5bfc\u81f4\u8fd9\u4e2a\u7ed3\u679c\u7684\u56e0\u7d20\u6709\u591a\u79cd\u3002<\/h2>\n<p>\u4e25\u683c\u6a21\u5f0f<\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>\u53ea\u9700\u8981\u7b80\u5355\u5730\u5220\u9664React.StrictMode\u6807\u7b7e\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d31e537434c4406c6061a\/8-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2023-09-30 114716.png\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d31e537434c4406c6061a\/9-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2023-09-30 114740.png\" \/><\/div>\n<h2>\u7136\u800c\uff0c\u5728\u7406\u89e3\u539f\u56e0\u4e4b\u540e\uff0c\u6211\u4eec\u5c06\u6267\u884c\u3002<\/h2>\n<p>React\u63d0\u4f9b\u4e86\u4e0eJavaScript\u7684\u4e25\u683c\u6a21\u5f0f\u76f8\u540c\u7684\u8bed\u6cd5\u3002\u5b83\u4e25\u683c\u89c4\u5b9a\u4e86\u7279\u5b9a\u7684\u8bed\u6cd5\uff0c\u4ee5\u4fbf\u6839\u636e\u540d\u79f0\u8fdb\u884c\u63a8\u5bfc\uff0c\u5e76\u5728\u670d\u52a1\u8fd0\u884c\u7684\u73af\u5883\u4e2d\u5b89\u5168\u8fd0\u884c\u3002<\/p>\n<p>React.StrictMode \u7684\u4e3b\u8981\u529f\u80fd\u662f\u68c0\u67e5\u7ec4\u4ef6\u7684\u751f\u547d\u5468\u671f\uff0c\u5e76\u4e14\u5728\u6709\u95ee\u9898\u7684\u5730\u65b9\u901a\u77e5\u5f00\u53d1\u8005\u3002\u5bf9\u4e8e\u8fd8\u4e0d\u719f\u6089\u4f7f\u7528 React \u7684\u4eba\u6765\u8bf4\uff0c\u5f53 useEffect() \u88ab\u6267\u884c\u4e24\u6b21\u65f6\u4f1a\u611f\u5230\u4e0d\u89e3\u3002\u8fd9\u4e2a\u88ab\u6267\u884c\u4e24\u6b21\u7684\u539f\u56e0\u662f React.StrictMode \u5728\u5f00\u53d1\u8005\u90a3\u91cc\u901a\u77e5\u8be5\u7ec4\u4ef6\u4e0d\u5b89\u5168\u7684\u64cd\u4f5c\uff0c\u8fd9\u88ab\u79f0\u4e3a\u53cc\u91cd\u8c03\u7528\uff08double-invoking\uff09\u3002<\/p>\n<p>React.StrictMode\u7684\u8fd9\u4e2a\u8b66\u544a\u884c\u4e3a\u4ec5\u5728\u5f00\u53d1\u9636\u6bb5\u9002\u7528\uff0c\u4e00\u65e6\u53d1\u5e03\u5c31\u4e0d\u4f1a\u81ea\u52a8\u751f\u6548\u3002<br \/>\n\u7136\u800c\uff0c\u5728\u5f00\u53d1\u9636\u6bb5\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u610f\u5916\u884c\u4e3a\uff0c\u7ed9\u5f00\u53d1\u8005\u5e26\u6765\u56f0\u60d1\u3002<br \/>\n\u4e3a\u4e86\u907f\u514d\u6df7\u4e71\uff0c\u5efa\u8bae\u5148\u5220\u9664React.StrictMode\uff0c\u7ee7\u7eed\u5f00\u53d1\uff0c\u53ef\u4ee5\u5417\uff1f<br \/>\n\u5bf9\u5427\uff1f\u7b11<\/p>\n<p>\u597d\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6709\u65f6\u5728React\u6e32\u67d3\u65f6\uff0cuseEffect\u4f1a\u8fd0\u884c\u4e24\u6b21\u3002 \u6709\u65f6\u5728React\u6e32\u67d3\u65f6\uff0cuseEffect\u53ef\u80fd\u4f1a\u8fd0\u884c\u4e24 [&hellip;]<\/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-38042","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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