{"id":477,"date":"2025-04-26T10:50:18","date_gmt":"2025-04-26T10:50:18","guid":{"rendered":"https:\/\/shiri.cyou\/?p=477"},"modified":"2025-07-10T08:17:03","modified_gmt":"2025-07-10T08:17:03","slug":"%e5%89%8d%e7%ab%af%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96-%e9%a2%84%e5%a4%87%e7%af%87","status":"publish","type":"post","link":"https:\/\/shiri.dev\/?p=477","title":{"rendered":"\u524d\u7aef\u6027\u80fd\u4f18\u5316-\u9884\u5907\u7bc7"},"content":{"rendered":"<h1>\u524d\u8a00<\/h1>\n<p>\u8d81\u7a7a\u95f2\u65f6\u95f4\u53c8\u5f00\u4e86\u4e2a\u65b0\u5751\uff0c\u8bb0\u5f55\u4e0b\u76ee\u524d\u81ea\u5df1\u9047\u5230\u8fc7\u7684\u4e00\u4e9b\u524d\u7aef\u6027\u80fd\u4f18\u5316\u76f8\u5173\u7ecf\u9a8c\u603b\u7ed3<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/shiri.dev\/wp-content\/uploads\/2025\/04\/image-1745129107273.png\" alt=\"file\" \/><\/p>\n<blockquote>\n<p>\u5e0c\u671b\u6709\u671d\u4e00\u65e5\u6211\u80fd\u628a\u6240\u6709\u8fd8\u5728 draft \u9636\u6bb5\u7684\u5751\u90fd\u586b\u4e86<\/p>\n<\/blockquote>\n<p>\u8fd9\u6b21\u51c6\u5907\u53d1\u4e00\u7cfb\u5217\u6587\u6863\uff0c\u9884\u8ba1\u57286\u6708\u524d\u5b8c\u5de5\u3002<\/p>\n<blockquote>\n<p>\u56e0\u5199\u5185\u5b58\u6cc4\u6f0f\u6587\u6863\u65f6\u53d1\u73b0\u5751\u6316\u592a\u5927\u4e86\u4e0d\u597d\u586b\uff0c\u4e8e\u662f\u8fd9\u6b21\u6539\u8fdb\u4e3a\u6316\u591a\u4e2a\u5c0f\u5751\u4e00\u4e2a\u4e2a\u586b<\/p>\n<p>\u5185\u5b58\u6cc4\u6f0f\u6587\u6863\u7684\u5751\u4e5f\u51c6\u5907\u62c6\u4e00\u4e0b\uff0c\u4e0d\u7136\u586b\u4e0d\u52a8\u4e86\uff0c\u5e0c\u671b\u6709\u671d\u4e00\u65e5\u80fd\u5b8c\u5de5<\/p>\n<\/blockquote>\n<h1>\u4f55\u65f6\u5e94\u8be5\u8003\u8651\u4f18\u5316\u6027\u80fd<\/h1>\n<h2>\u6027\u80fd\u4f18\u5316\u7684\u76ee\u6807<\/h2>\n<p>\u5148\u8003\u8651\u8fd9\u6837\u7684\u4f8b\u5b50\uff1a\u73a9\u6e38\u620f\u7684\u65f6\u5019\u6389\u5e27\uff0c\u4f1a\u8ba9\u73a9\u5bb6\u5f88\u96be\u53d7\uff0c\u800c\u5f53\u5f00\u542f\u663e\u5361\u7684\u5e27\u751f\u6210\u529f\u80fd\u65f6\uff0c\u5c3d\u7ba1\u5b83\u5b9e\u9645\u4e0a\u589e\u52a0\u4e86\u8f93\u5165\u548c\u753b\u9762\u5ef6\u8fdf\uff0c\u4f46\u73a9\u5bb6\u51e0\u4e4e\u611f\u77e5\u4e0d\u5230\uff0c\u53cd\u800c\u4f1a\u611f\u89c9\u6e38\u620f\u7684\u4f53\u9a8c\u66f4\u6d41\u7545\u4e86\u3002\u800c\u5e27\u751f\u6210\u505a\u7684\u4e8b\u60c5\uff0c\u5176\u5b9e\u662f\u5c06\u5e27\u6570\u63d0\u5347\u5230\u73a9\u5bb6\u7684\u8212\u9002\u8303\u56f4\u5185\uff0c\u5e76\u4e14<strong>\u4fdd\u8bc1\u73a9\u5bb6\u5c3d\u53ef\u80fd\u611f\u77e5\u4e0d\u5230\u989d\u5916\u7684\u8f93\u5165\u5ef6\u8fdf<\/strong>\uff0c\u5bf9\u73a9\u5bb6\u800c\u8a00\u5c31\u662f\u6e38\u620f\u6027\u80fd\u53d8\u5f97\u66f4\u4f18\u4e86\u3002<\/p>\n<p>\u7c7b\u4f3c\u5730\uff0c\u5f53\u6211\u4eec\u81ea\u5df1\u4f7f\u7528\u8f6f\u4ef6\u65f6\uff0c\u4e00\u822c\u53ea\u6709\u5728\u51fa\u73b0\u660e\u663e\u5361\u987f\u6216\u8005\u5ef6\u8fdf\u7684\u65f6\u5019\u624d\u4f1a\u611f\u77e5\u5230\u8f6f\u4ef6\u5b58\u5728\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<p>\u6545\u6027\u80fd\u4f18\u5316\u7684\u76ee\u6807\u53ef\u4ee5\u6982\u62ec\u4e3a\uff1a<strong>\u5c06\u5ef6\u8fdf\u548c\u5361\u987f\u964d\u4f4e\u5230\u7528\u6237\u7684\u53ef\u63a5\u53d7\u8303\u56f4\u5185\u3002<\/strong><\/p>\n<h2>\u4f18\u5316\u7684\u65f6\u673a<\/h2>\n<p>\u5148\u4e0a\u7ed3\u8bba\uff1a\u7edd\u5927\u90e8\u5206\u60c5\u51b5\u4e0b\uff0c\u53ea\u6709<strong>\u51fa\u73b0\u6027\u80fd\u74f6\u9888\u7684\u65f6\u5019<\/strong>\u624d\u5e94\u8be5\u8003\u8651\u4f18\u5316\u6027\u80fd\u3002<\/p>\n<p>\u53ef\u80fd\u6709\u670b\u53cb\u4f1a\u611f\u5230\u7591\u60d1\uff0c\u96be\u9053\u6027\u80fd\u4e0d\u91cd\u8981\u5417\uff1f<\/p>\n<p>\u5728\u8f6f\u4ef6\u5f00\u53d1\u9886\u57df\u6709\u8fd9\u4e48\u4e00\u53e5\u8bdd\uff1a<strong>Make it work, Make it right, Make it fast.<\/strong><\/p>\n<p>\u4e2a\u4eba\u8ba4\u4e3a\u8fd9\u53e5\u8bdd\u51c6\u786e\u7684\u63cf\u8ff0\u4e86\u4e00\u4e2a\u8f6f\u4ef6\u9879\u76ee\u7684\u5b8c\u6574\u7814\u53d1\u5468\u671f\u3002\u4e5f\u89e3\u91ca\u4e86\u4e3a\u4ec0\u4e48\u4f18\u5316\u6027\u80fd\u7684\u4f18\u5148\u7ea7\u6ca1\u6709\u6211\u4eec\u60f3\u8c61\u7684\u90a3\u4e48\u9ad8\u3002<\/p>\n<p>\u6027\u80fd\u4f18\u5316\u7684\u6295\u5165\u4e0e\u56de\u62a5\u7c7b\u4f3c\u4e00\u4e2a\u5bf9\u6570\u66f2\u7ebf\uff0c<strong>\u8d8a\u5f80\u540e\uff0c\u4ed8\u51fa\u7684\u6210\u672c\u548c\u56de\u62a5\u5c31\u8d8a\u4e0d\u6210\u6b63\u6bd4<\/strong>\u3002\u5982\u4f55<strong>\u5e73\u8861\u8f6f\u4ef6\u6027\u80fd\u4e0e\u5f00\u53d1\u6210\u672c<\/strong>\uff0c\u901a\u5e38\u662f\u6211\u4eec\u6bcf\u4e2a\u5f00\u53d1\u8005\u90fd\u8981\u9762\u4e34\u7684\u95ee\u9898\u3002<\/p>\n<p>\u5f53\u7136\uff0c\u5982\u679c\u4f60\u662f\u4e2a\u4eba\u5f00\u53d1\u8005 or \u6280\u672f\u7231\u597d\u8005\uff0c\u90a3\u4e48\u4fdd\u8bc1\u81ea\u5df1\u7684\u4ea7\u54c1\u5728\u6bcf\u4e2a\u7ec6\u8282\u4e0a\u90fd\u505a\u5230\u6027\u80fd\u4f18\u79c0\u53ef\u80fd\u66f4\u52a0\u9002\u5408\u3002<\/p>\n<p>\u4f46\u5982\u679c\u662f\u4e00\u4e2a\u5168\u804c\u5f00\u53d1\u8005\uff0c\u5e76\u4e14\u516c\u53f8\u662f\u4e1a\u52a1\u9a71\u52a8\u800c\u975e\u6280\u672f\u9a71\u52a8\uff0c\u90a3\u4e48\u4fdd\u8bc1\u81ea\u5df1\u53ef\u4ee5\u5feb\u901f\u5b9e\u73b0\u529f\u80fd\u53ef\u80fd\u662f\u66f4\u91cd\u8981\u7684\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u5728\u51fa\u73b0\u6027\u80fd\u74f6\u9888\uff0c\u4e5f\u5c31\u662f\u7528\u6237\u80fd\u611f\u77e5\u5230\u5361\u987f\u6216\u8005\u5ef6\u8fdf\u7684\u65f6\u5019\u518d\u53bb\u8003\u8651\u6027\u80fd\u4f18\u5316\uff0c\u662f\u5b9e\u9645\u5f00\u53d1\u5de5\u4f5c\u4e2d\u7684\u6027\u4ef7\u6bd4\u4e4b\u9009\u3002<\/p>\n<h1>\u5e38\u89c1\u524d\u7aef\u6027\u80fd\u6307\u6807<\/h1>\n<h2>\u6307\u6807\u6982\u89c8<\/h2>\n<p>\u8ba9\u6211\u4eec\u5148\u6765\u770b\u4e00\u4e0b\u76ee\u524d\u5728\u524d\u7aef\u9886\u57df\u90fd\u6709\u54ea\u4e9b\u5e38\u89c1\u7684\u6307\u6807\uff08\u7559\u4e0b\u5370\u8c61\u5373\u53ef\uff09\uff1a<\/p>\n<ul>\n<li>First Contentful Paint (FCP)\uff1a\u9996\u6b21\u5185\u5bb9\u7ed8\u5236\uff0c\u8861\u91cf\u4ece\u7f51\u9875\u5f00\u59cb\u52a0\u8f7d\u5230\u7f51\u9875\u4efb\u4f55\u90e8\u5206\u5448\u73b0\u5728\u5c4f\u5e55\u4e0a\u6240\u7528\u7684\u65f6\u95f4<\/li>\n<li><strong>Largest Contentful Paint (LCP)<\/strong>\uff1a\u6700\u5927\u5185\u5bb9\u7ed8\u5236\uff0c\u8861\u91cf\u4ece\u7f51\u9875\u5f00\u59cb\u52a0\u8f7d\u5230\u5c4f\u5e55\u4e0a\u6e32\u67d3\u6700\u5927\u7684\u6587\u672c\u5757\u6216\u56fe\u7247\/\u89c6\u9891\u5143\u7d20\u6240\u7528\u7684\u65f6\u95f4<\/li>\n<li>First Input Delay (FID)\uff1a\u9996\u6b21\u8f93\u5165\u5ef6\u8fdf\uff0c\u8861\u91cf\u4ece\u7528\u6237\u9996\u6b21\u4e0e\u9875\u9762\u4e92\u52a8\uff08\u70b9\u51fb\u94fe\u63a5\u3001\u70b9\u6309\u6309\u94ae\u6216\u4f7f\u7528\u7531 JavaScript \u63d0\u4f9b\u652f\u6301\u7684\u81ea\u5b9a\u4e49\u63a7\u4ef6\uff09\u5230\u6d4f\u89c8\u5668\u5b9e\u9645\u80fd\u591f\u54cd\u5e94\u8be5\u4e92\u52a8\u7684\u65f6\u95f4<\/li>\n<li><strong>Interaction to Next Paint (INP)<\/strong>\uff1a\u8861\u91cf\u4e0e\u7f51\u9875\u8fdb\u884c\u6bcf\u6b21\u70b9\u6309\u3001\u70b9\u51fb\u6216\u952e\u76d8\u4ea4\u4e92\u7684\u5ef6\u8fdf\u65f6\u95f4\uff0c\u5e76\u6839\u636e\u4e92\u52a8\u6b21\u6570\u9009\u62e9\u8be5\u7f51\u9875\u6700\u5dee\u7684\u4e92\u52a8\u5ef6\u8fdf\u65f6\u95f4\uff08\u6216\u63a5\u8fd1\u6700\u9ad8\u5ef6\u8fdf\u65f6\u95f4\uff09\u4f5c\u4e3a\u5355\u4e2a\u4ee3\u8868\u6027\u503c\uff0c\u4ee5\u63cf\u8ff0\u7f51\u9875\u7684\u6574\u4f53\u54cd\u5e94\u901f\u5ea6<\/li>\n<li>Time to Interactive (TTI)\uff1a\u53ef\u4ea4\u4e92\u65f6\u95f4\uff0c\u8861\u91cf\u7684\u662f\u4ece\u7f51\u9875\u5f00\u59cb\u52a0\u8f7d\u5230\u89c6\u89c9\u5448\u73b0\u3001\u5176\u521d\u59cb\u811a\u672c\uff08\u82e5\u6709\uff09\u5df2\u52a0\u8f7d\u4e14\u80fd\u591f\u5feb\u901f\u53ef\u9760\u5730\u54cd\u5e94\u7528\u6237\u8f93\u5165\u7684\u65f6\u95f4<\/li>\n<li>Total Blocking Time (TBT)\uff1a\u603b\u963b\u585e\u65f6\u95f4\uff0c\u6d4b\u91cf FCP \u548c TTI \u4e4b\u95f4\u7684\u603b\u65f6\u95f4\uff0c\u5728\u6b64\u671f\u95f4\uff0c\u4e3b\u7ebf\u7a0b\u5904\u4e8e\u5c4f\u853d\u72b6\u6001\u7684\u65f6\u95f4\u591f\u957f\uff0c\u8db3\u4ee5\u963b\u6b62\u8f93\u5165\u54cd\u5e94<\/li>\n<li><strong>Cumulative Layout Shift (CLS)<\/strong>\uff1a\u8861\u91cf\u4ece\u9875\u9762\u5f00\u59cb\u52a0\u8f7d\u5230\u5176\u751f\u547d\u5468\u671f\u72b6\u6001\u66f4\u6539\u4e3a\u9690\u85cf\u4e4b\u95f4\u53d1\u751f\u7684\u6240\u6709\u610f\u5916\u5e03\u5c40\u504f\u79fb\u7684\u7d2f\u8ba1\u5f97\u5206<\/li>\n<li>Time to First Byte (TTFB)\uff1a\u9996\u5b57\u8282\u65f6\u95f4\uff0c\u6d4b\u91cf\u7f51\u7edc\u4f7f\u7528\u8d44\u6e90\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u54cd\u5e94\u7528\u6237\u8bf7\u6c42\u6240\u9700\u7684\u65f6\u95f4<\/li>\n<\/ul>\n<p>\u5927\u4f19\u5e94\u8be5\u4e5f\u731c\u5230\u4e86\uff0c\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u5173\u6ce8\u90a3\u4e48\u591a\u6307\u6807\u662f\u4e0d\u73b0\u5b9e\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u4e86\u89e3<strong>\u54ea\u4e9b\u6307\u6807\u7684\u4f18\u5148\u7ea7\u6700\u9ad8\uff0c\u9700\u8981\u91cd\u70b9\u5173\u6ce8<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/shiri.dev\/wp-content\/uploads\/2025\/04\/image-1745663400167.png\" alt=\"file\" \/><\/p>\n<h2>\u6838\u5fc3\u6027\u80fd\u6307\u6807 &#8211; <a href=\"https:\/\/web.dev\/articles\/defining-core-web-vitals-thresholds?hl=zh-cn\">Core Web Vitals<\/a><\/h2>\n<blockquote>\n<p>\u4e0b\u9762\u7684\u6307\u6807\u5b9a\u4e49\u548c\u56fe\u7247\u8d44\u6e90\u90fd\u6765\u81ea<a href=\"https:\/\/web.dev\/\">web.dev<\/a>\u7f51\u7ad9\uff0c\u535a\u4e3b\u53ea\u63d0\u70bc\u4e86\u4e00\u4e9b\u4e3b\u8981\u4fe1\u606f\uff0c\u611f\u5174\u8da3\u7684\u8bfb\u8005\u53ef\u81ea\u884c\u524d\u5f80\u9605\u8bfb<\/p>\n<\/blockquote>\n<p>Core Web Vitals \u662fGoogle\u63d0\u51fa\u7684\u7528\u4e8e\u8861\u91cf\u9875\u9762\u7528\u6237\u4f53\u9a8c\u8d28\u91cf\u7684\u6838\u5fc3\u6027\u80fd\u6307\u6807\uff0c<strong>\u5f71\u54cd\u641c\u7d22\u5f15\u64ce\u6392\u540d\uff08SEO\uff09<\/strong>\u3002<\/p>\n<p>\u5176\u5305\u542b\u7684\u6307\u6807\u6709\uff1aLCP\u3001INP\u3001CLS\uff0c\u4e0b\u9762\u6211\u4eec\u4e00\u8d77\u6765\u8be6\u7ec6\u4e86\u89e3\u4e0b\u8fd9\u4e9b\u6307\u6807<\/p>\n<h3>LCP<\/h3>\n<h4>\u5b9a\u4e49<\/h4>\n<p>\u89c6\u53e3\u5185\u53ef\u89c1\u7684\u6700\u5927\u56fe\u7247\u3001\u6587\u672c\u6216\u89c6\u9891\u7684\u6e32\u67d3\u65f6\u95f4\uff0c\u7528\u4e8e\u8861\u91cf\u9875\u9762\u7684\u52a0\u8f7d\u6027\u80fd<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/web.dev\/static\/articles\/lcp\/image\/good-lcp-values.svg?hl=zh-cn\" alt=\"img\" \/><\/p>\n<h4>\u8ba1\u7b97\u539f\u7406<\/h4>\n<ul>\n<li>\u5019\u9009\u5143\u7d20\u7c7b\u578b\uff1a\n<ul>\n<li><code>&lt;img&gt;<\/code>\u6807\u7b7e\uff08\u5305\u542bSVG\u5185\u7684<code>&lt;img&gt;<\/code>\uff09<\/li>\n<li><code>&lt;video&gt;<\/code>\u6807\u7b7e<\/li>\n<li>\u901a\u8fc7<code>url()<\/code>\u52a0\u8f7d\u7684\u80cc\u666f\u56fe<\/li>\n<li>\u5305\u542b\u6587\u672c\u7684\u5757\u7ea7\u5143\u7d20\uff08\u5982<code>p<\/code> <code>div<\/code> <code>h1<\/code>\u7b49\uff09<\/li>\n<\/ul>\n<\/li>\n<li>\u8ba1\u7b97\u5143\u7d20\u9762\u79ef\uff1a\n<ul>\n<li>\u8ba1\u7b97\u5143\u7d20\u5728<strong>\u89c6\u53e3\u5185\u53ef\u89c1\u90e8\u5206\u7684\u9762\u79ef<\/strong><\/li>\n<li>\u5ffd\u7565\u8d85\u51fa\u89c6\u53e3\u7684\u533a\u57df\u3001\u88ab\u906e\u6321\u6216\u900f\u660e\u7684\u5185\u5bb9<\/li>\n<\/ul>\n<\/li>\n<li>\u8bb0\u5f55\u65f6\u95f4\u70b9\n<ul>\n<li>\u5143\u7d20\u7684\u6e32\u67d3\u65f6\u95f4\u7b49\u4e8e\u5176<strong>\u8d44\u6e90\u52a0\u8f7d\u5b8c\u6210\u5e76\u6e32\u67d3\u5230\u5c4f\u5e55\u7684\u65f6\u95f4<\/strong><\/li>\n<li>\u5bf9\u4e8e\u6587\u672c\u5757\uff0c\u65f6\u95f4\u70b9\u662f<strong>\u5b57\u4f53\u52a0\u8f7d\u5b8c\u4e14\u5e03\u5c40\u7a33\u5b9a\u540e<\/strong><\/li>\n<\/ul>\n<\/li>\n<li>\u52a8\u6001\u66f4\u65b0\n<ul>\n<li>\u5728\u9875\u9762\u52a0\u8f7d\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u51fa\u73b0\u66f4\u5927\u7684\u5143\u7d20\uff0cLCP\u5019\u9009\u5143\u7d20\u4f1a\u66f4\u65b0<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u793a\u4f8b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/web.dev\/static\/articles\/lcp\/image\/largest-contentful-paint-fc43128e011aa_1440.png?hl=zh-cn\" alt=\"img\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/web.dev\/static\/articles\/lcp\/image\/largest-contentful-paint-6c5554de0eac7_1440.png?hl=zh-cn\" alt=\"img\" \/><\/p>\n<h3>INP<\/h3>\n<h4>\u5b9a\u4e49<\/h4>\n<p>\u901a\u8fc7\u89c2\u5bdf\u7528\u6237\u8bbf\u95ee\u7f51\u9875\u671f\u95f4\u53d1\u751f\u7684\u6240\u6709\u70b9\u51fb\u3001\u70b9\u6309\u548c\u952e\u76d8\u4e92\u52a8\u7684\u5ef6\u8fdf\u65f6\u95f4\uff0c\u5176\u4e2d\u6700\u957f\u7684\u65f6\u95f4\u62a5\u544a\u4e3aINP\uff0c\u7528\u4e8e\u8bc4\u4f30\u7f51\u9875\u5bf9\u7528\u6237\u4e92\u52a8\u7684\u603b\u4f53\u54cd\u5e94\u60c5\u51b5<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/web.dev\/static\/articles\/inp\/image\/inp-desktop-v2.svg?hl=zh-cn\" alt=\"img\" \/><\/p>\n<h4>\u8ba1\u7b97\u539f\u7406<\/h4>\n<ul>\n<li>\u89c2\u5bdf\u4ea4\u4e92\u7c7b\u578b\n<ul>\n<li>\u4f7f\u7528\u9f20\u6807\u70b9\u51fb<\/li>\n<li>\u5728\u89e6\u6478\u5c4f\u8bbe\u5907\u4e0a\u70b9\u6309<\/li>\n<li>\u6309\u5b9e\u4f53\u952e\u76d8\u6216\u5c4f\u5e55\u952e\u76d8\u4e0a\u7684\u6309\u952e<\/li>\n<\/ul>\n<\/li>\n<li>\u8ba1\u7b97\u4ea4\u4e92\u5ef6\u8fdf\uff08\u53c2\u8003\u4e0b\u56fe\uff09\n<ul>\n<li>\u8f93\u5165\u5ef6\u8fdf\uff08Input Delay\uff09\uff1a\u4ece\u4ea4\u4e92\u89e6\u53d1\u5230\u6d4f\u89c8\u5668\u4e3b\u7ebf\u7a0b\u5f00\u59cb\u5904\u7406\u4e8b\u4ef6\u7684\u65f6\u95f4\uff08\u7c7b\u4f3c FID\uff09<\/li>\n<li>\u5904\u7406\u65f6\u95f4\uff08Processing Duration\uff09\uff1a\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\uff08\u5982 onClick\uff09\u7684\u6267\u884c\u8017\u65f6<\/li>\n<li>\u5448\u73b0\u5ef6\u8fdf\uff08Presentation Delay\uff09\uff1a\u6d4f\u89c8\u5668\u6e32\u67d3\u4e0b\u4e00\u5e27\uff08next paint\uff09\u7684\u65f6\u95f4<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/web.dev\/static\/articles\/inp\/image\/logical-interaction.svg?hl=zh-cn\" alt=\"img\" \/><\/p>\n<blockquote>\n<p>\u4e3a\u4e86\u66f4\u597d\u5730\u8861\u91cf\u4e92\u52a8\u91cf\u8f83\u9ad8\u7684\u7f51\u9875\u7684\u5b9e\u9645\u54cd\u5e94\u901f\u5ea6\uff0c\u8ba1\u7b97\u65f6\u4f1a\u5ffd\u7565\u6bcf 50 \u6b21\u4e92\u52a8\u4e2d\u5ef6\u8fdf\u6700\u9ad8\u7684\u4e92\u52a8<\/p>\n<\/blockquote>\n<h4>\u4e0eFID\u7684\u533a\u522b<\/h4>\n<ul>\n<li>FID \u4ec5\u8861\u91cf\u7f51\u9875\u4e0a\u9996\u6b21\u4e92\u52a8\u7684\u8f93\u5165\u5ef6\u8fdf\uff0cINP \u901a\u8fc7\u89c2\u5bdf\u7f51\u9875\u4e0a\u7684\u6240\u6709\u4e92\u52a8\uff0c\u53d6\u5176\u4e2d\u65f6\u95f4\u6700\u957f\u7684\u503c<\/li>\n<li>FID \u662f\u4e00\u79cd\u52a0\u8f7d\u54cd\u5e94\u80fd\u529b\u6307\u6807\uff0c\u65e8\u5728\u8bc4\u4f30\u7f51\u9875\u7ed9\u7528\u6237\u7684\u7b2c\u4e00\u5370\u8c61\uff1bINP \u662f\u4e00\u79cd\u66f4\u53ef\u9760\u7684\u603b\u4f53\u54cd\u5e94\u80fd\u529b\u6307\u6807\uff0c\u65e0\u8bba\u7f51\u9875\u4e92\u52a8\u53d1\u751f\u5728\u7f51\u9875\u751f\u547d\u5468\u671f\u7684\u4ec0\u4e48\u65f6\u95f4\u70b9\uff0c\u5b83\u90fd\u80fd\u53cd\u6620\u7f51\u9875\u7684\u603b\u4f53\u54cd\u5e94\u80fd\u529b<\/li>\n<\/ul>\n<h3>CLS<\/h3>\n<h4>\u5b9a\u4e49<\/h4>\n<blockquote>\n<p>\u76f8\u6bd4\u524d\u4e24\u4e2a\u6307\u6807\uff0cCLS\u5c06\u4f1a\u66f4\u590d\u6742\u4e00\u70b9\uff0c\u4f46\u8bf7\u653e\u8f7b\u677e&amp;\u4fdd\u6301\u8010\u5fc3\uff0c\u771f\u6b63\u7406\u89e3\u540e\u4f1a\u53d1\u73b0\u8fd9\u4e2a\u6982\u5ff5\u5176\u5b9e\u4e5f\u5f88\u7b80\u5355<\/p>\n<\/blockquote>\n<p>CLS\u6307\u9875\u9762\u751f\u547d\u5468\u671f\u5185<strong>\u6240\u6709\u610f\u5916\u5e03\u5c40\u504f\u79fb<\/strong>\u7684<strong>\u7d2f\u79ef\u5206\u6570<\/strong>\uff0c\u7528\u4e8e\u8bc4\u4f30\u9875\u9762\u7684\u89c6\u89c9\u7a33\u5b9a\u6027<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/web.dev\/static\/articles\/cls\/image\/good-cls-values.svg?hl=zh-cn\" alt=\"img\" \/><\/p>\n<h4>\u8ba1\u7b97\u539f\u7406<\/h4>\n<h5>\u57fa\u672c\u516c\u5f0f<\/h5>\n<p>\u5e03\u5c40\u504f\u79fb\u5206\u6570\uff08layout shift score\uff09\u7531<strong>\u4e00\u6b21\u5e03\u5c40\u504f\u79fb<\/strong>\u7684<strong>\u5f71\u54cd\u5206\u6570\uff08impact fraction\uff09<\/strong>\u548c<strong>\u8ddd\u79bb\u5206\u6570\uff08distance fraction\uff09<\/strong>\u76f8\u4e58\u5f97\u51fa<\/p>\n<p>\u5373<code>layout shift score = impact fraction * distance fraction<\/code><\/p>\n<h5>\u5f71\u54cd\u5206\u6570<\/h5>\n<p>\u5b9a\u4e49\uff1a\u504f\u79fb\u5143\u7d20\u5728\u89c6\u53e3\u4e2d<strong>\u5f71\u54cd\u7684\u53ef\u89c6\u533a\u57df\u6bd4\u4f8b<\/strong><\/p>\n<p>\u8ba1\u7b97\u65b9\u5f0f\uff1a<code>\u5f71\u54cd\u5206\u6570 = \u504f\u79fb\u524d\u9762\u79ef \u222a \u504f\u79fb\u540e\u9762\u79ef \/ \u89c6\u53e3\u603b\u9762\u79ef<\/code><\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/web.dev\/static\/articles\/cls\/image\/impact-fraction-example-164341c82ee76_1440.png?hl=zh-cn\" alt=\"img\" \/><\/p>\n<p>\u5728\u4e0a\u56fe\u4e2d\uff0c\u6709\u4e00\u4e2a\u5143\u7d20\u5728\u4e00\u4e2a\u5e27\u4e2d\u5360\u636e\u4e86\u89c6\u53e3\u7684\u4e00\u534a\u3002\u7136\u540e\uff0c\u5728\u4e0b\u4e00\u4e2a\u753b\u9762\u4e2d\uff0c\u8be5\u5143\u7d20\u4f1a\u5411\u4e0b\u79fb\u52a8\u89c6\u53e3\u9ad8\u5ea6\u7684 25%\u3002\u7ea2\u8272\u865a\u7ebf\u77e9\u5f62\u8868\u793a\u5143\u7d20\u5728\u4e24\u4e2a\u5e27\u4e2d\u7684\u53ef\u89c1\u533a\u57df\u7684\u5e76\u96c6\uff0c\u5728\u672c\u4f8b\u4e2d\uff0c\u8be5\u533a\u57df\u5360\u6574\u4e2a\u89c6\u53e3\u7684 75%\uff0c\u56e0\u6b64\u5176\u5f71\u54cd\u767e\u5206\u6bd4\u4e3a <code>0.75<\/code><\/p>\n<h5>\u8ddd\u79bb\u5206\u6570<\/h5>\n<p>\u5b9a\u4e49\uff1a\u504f\u79fb\u5143\u7d20\u5728\u89c6\u53e3\u4e2d<strong>\u79fb\u52a8\u7684\u6700\u5927\u76f8\u5bf9\u8ddd\u79bb<\/strong>\uff08\u5782\u76f4\u6216\u6c34\u5e73\u65b9\u5411\uff09<\/p>\n<p>\u8ba1\u7b97\u65b9\u5f0f\uff1a<code>\u8ddd\u79bb\u5206\u6570 = \u79fb\u52a8\u8ddd\u79bb \/ \u89c6\u53e3\u5bf9\u5e94\u65b9\u5411\u5c3a\u5bf8\uff08\u9ad8\u5ea6\u6216\u5bbd\u5ea6\uff09<\/code><\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/web.dev\/static\/articles\/cls\/image\/distance-fraction-example-9146d2a862482_1440.png?hl=zh-cn\" alt=\"img\" \/><\/p>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u89c6\u53e3\u7684\u6700\u5927\u5c3a\u5bf8\u662f\u9ad8\u5ea6\uff0c\u5e76\u4e14\u4e0d\u7a33\u5b9a\u7684\u5143\u7d20\u79fb\u52a8\u4e86\u89c6\u53e3\u9ad8\u5ea6\u7684 25%\uff0c\u56e0\u6b64\u8ddd\u79bb\u5206\u6570\u4e3a <code>0.25<\/code><\/p>\n<h5>\u8ba1\u7b97CLS<\/h5>\n<p>\u57fa\u4e8e\u4e0a\u9762\u6240\u8bf4\u7684\u5185\u5bb9\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u8ba1\u7b97CLS\u4e86<\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/web.dev\/static\/articles\/cls\/image\/layout-shift-example-sta-05cf93597fcee_1440.png?hl=zh-cn\" alt=\"img\" \/><\/p>\n<ul>\n<li>\u5728\u4e0a\u56fe\u7684\u7b2c\u4e00\u5e27\u4e2d\uff0c\u663e\u793a\u4e86\u9488\u5bf9\u52a8\u7269\u7684 API \u8bf7\u6c42\u7684\u56db\u4e2a\u7ed3\u679c\uff0c\u8fd9\u4e9b\u7ed3\u679c\u6309\u5b57\u6bcd\u987a\u5e8f\u6392\u5e8f\u3002\u5728\u7b2c\u4e8c\u4e2a\u753b\u9762\u4e2d\uff0c\u7cfb\u7edf\u4f1a\u5411\u5df2\u6392\u5e8f\u7684\u5217\u8868\u4e2d\u6dfb\u52a0\u66f4\u591a\u7ed3\u679c<\/li>\n<li>\u5217\u8868\u4e2d\u7684\u7b2c\u4e00\u9879\uff08\u201c\u732b\u201d\uff09\u5728\u5e27\u4e4b\u95f4\u4e0d\u4f1a\u66f4\u6539\u5176\u8d77\u59cb\u4f4d\u7f6e\uff0c\u56e0\u6b64\u662f\u7a33\u5b9a\u7684\u3002\u540c\u6837\uff0c\u6dfb\u52a0\u5230\u5217\u8868\u7684\u65b0\u9879\u4e4b\u524d\u4e0d\u5728 DOM \u4e2d\uff0c\u56e0\u6b64\u5b83\u4eec\u7684\u8d77\u59cb\u4f4d\u7f6e\u4e5f\u4e0d\u4f1a\u53d1\u751f\u53d8\u5316\u3002\u4f46\u662f\uff0c\u6807\u8bb0\u4e3a\u201c\u72d7\u201d\u201c\u9a6c\u201d\u548c\u201c\u6591\u9a6c\u201d\u7684\u9879\u90fd\u5c06\u5176\u8d77\u59cb\u4f4d\u7f6e\u79fb\u5230\u4e86\u5176\u4ed6\u4f4d\u7f6e\uff0c\u56e0\u6b64\u5b83\u4eec\u662f\u4e0d\u7a33\u5b9a\u7684\u5143\u7d20<\/li>\n<li>\u540c\u6837\uff0c\u7ea2\u8272\u865a\u7ebf\u77e9\u5f62\u8868\u793a\u8fd9\u4e09\u4e2a\u4e0d\u7a33\u5b9a\u5143\u7d20\u7684\u201c\u524d\u201d\u548c\u201c\u540e\u201d\u533a\u57df\u7684\u5e76\u96c6\uff0c\u5728\u672c\u4f8b\u4e2d\uff0c\u8fd9\u5927\u7ea6\u5360\u89c6\u53e3\u533a\u57df\u7684 60%\uff0c\u5f71\u54cd\u5206\u6570\u4e3a <code>0.60<\/code><\/li>\n<li>\u7bad\u5934\u8868\u793a\u4e0d\u7a33\u5b9a\u5143\u7d20\u4ece\u5176\u8d77\u59cb\u4f4d\u7f6e\u79fb\u52a8\u7684\u8ddd\u79bb\u3002\u201c\u6591\u9a6c\u7ebf\u201d\u5143\u7d20\uff08\u7531\u84dd\u8272\u7bad\u5934\u8868\u793a\uff09\u79fb\u52a8\u4e86\u6700\u591a\uff0c\u79fb\u52a8\u4e86\u7ea6\u89c6\u53e3\u9ad8\u5ea6\u7684 30%\u3002\u56e0\u6b64\uff0c\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u8ddd\u79bb\u5206\u6570\u4e3a <code>0.3<\/code><\/li>\n<li>CLS\u4e3a <code>0.60 x 0.3 = 0.18<\/code><\/li>\n<\/ul>\n<h1>\u7ed3\u8bed<\/h1>\n<p>\u4f5c\u4e3a\u7cfb\u5217\u7684\u5f00\u7bc7\uff0c\u672c\u6587\u5206\u4eab\u4e86\u5bf9\u524d\u7aef\u6027\u80fd\u4f18\u5316\u7684\u76ee\u6807\u548c\u5e38\u89c1\u6027\u80fd\u6307\u6807\uff0c\u4e5f\u5bf9Google\u7814\u7a76\u51fa\u7684\u6838\u5fc3\u6027\u80fd\u6307\u6807\u505a\u4e86\u4ecb\u7ecd\u3002<\/p>\n<p>\u540e\u9762\u4f1a\u57fa\u4e8e\u5982\u4f55\u4f18\u5316\u6838\u5fc3\u6027\u80fd\u6307\u6807\u8fdb\u884c\u66f4\u7ec6\u8282\u7684\u5206\u4eab\uff0c\u5e0c\u671b\u80fd\u5199\u51fa\u66f4\u597d\u7684\u535a\u5ba2\uff0c\u4e0e\u5404\u4f4d\u5171\u52c9~<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 \u8d81\u7a7a\u95f2\u65f6\u95f4\u53c8\u5f00\u4e86\u4e2a\u65b0\u5751\uff0c\u8bb0\u5f55\u4e0b\u76ee\u524d\u81ea\u5df1\u9047\u5230\u8fc7\u7684\u4e00\u4e9b\u524d\u7aef\u6027\u80fd\u4f18\u5316\u76f8\u5173\u7ecf\u9a8c\u603b\u7ed3 \u5e0c\u671b\u6709\u671d\u4e00\u65e5\u6211\u80fd\u628a&hellip; <a href=\"https:\/\/shiri.dev\/?p=477\" class=\"more-link read-more\" rel=\"bookmark\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">\u524d\u7aef\u6027\u80fd\u4f18\u5316-\u9884\u5907\u7bc7<\/span><i class=\"fa fa-arrow-right\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,1],"tags":[],"class_list":{"0":"post-477","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-frontend","7":"category-uncategorized","8":"h-entry","10":"h-as-article"},"_links":{"self":[{"href":"https:\/\/shiri.dev\/index.php?rest_route=\/wp\/v2\/posts\/477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shiri.dev\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shiri.dev\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/shiri.dev\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/shiri.dev\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=477"}],"version-history":[{"count":44,"href":"https:\/\/shiri.dev\/index.php?rest_route=\/wp\/v2\/posts\/477\/revisions"}],"predecessor-version":[{"id":696,"href":"https:\/\/shiri.dev\/index.php?rest_route=\/wp\/v2\/posts\/477\/revisions\/696"}],"wp:attachment":[{"href":"https:\/\/shiri.dev\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shiri.dev\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shiri.dev\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}