{"id":170671,"date":"2024-05-08T17:12:44","date_gmt":"2024-05-08T09:12:44","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/170671.html"},"modified":"2024-05-08T17:12:54","modified_gmt":"2024-05-08T09:12:54","slug":"javascript-%e7%bc%96%e7%a8%8b%e9%a1%b9%e7%9b%ae%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0-dom-%e7%bc%96%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/170671.html","title":{"rendered":"Javascript \u7f16\u7a0b\u9879\u76ee\u5982\u4f55\u5b9e\u73b0 Dom \u7f16\u7a0b"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27041531\/1403372d-9d79-4b1d-a0ea-082a73d7d20f.webp\" alt=\"Javascript \u7f16\u7a0b\u9879\u76ee\u5982\u4f55\u5b9e\u73b0 Dom \u7f16\u7a0b\" \/><\/p>\n<p><p>JavaScript 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= &quot;red&quot;<\/code>\u53ef\u4ee5\u5c06\u5143\u7d20\u7684\u6587\u5b57\u989c\u8272\u6539\u4e3a\u7ea2\u8272\u3002\u4f7f\u7528<code>element.setAttribute(&#039;class&#039;, &#039;newClass&#039;)<\/code>\u53ef\u4ee5\u6539\u53d8\u5143\u7d20\u7684\u7c7b\u540d\u3002\u8fd9\u4e9b\u64cd\u4f5c\u8ba9\u5f00\u53d1\u8005\u80fd\u591f\u52a8\u6001\u5730\u6539\u53d8\u9875\u9762\u7684\u5916\u89c2\u548c\u884c\u4e3a\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u4e8b\u4ef6\u5904\u7406<\/h3>\n<\/p>\n<p><p>JavaScript\u7684\u53e6\u4e00\u5927\u7279\u8272\u662f\u80fd\u591f\u5904\u7406\u7528\u6237\u548c\u6d4f\u89c8\u5668\u4ea7\u751f\u7684\u4e8b\u4ef6\uff0c\u5982\u70b9\u51fb\u3001\u6eda\u52a8\u3001\u6309\u952e\u7b49\u3002\u901a\u8fc7\u4e8b\u4ef6\u76d1\u542c\u548c\u5904\u7406\uff0c\u53ef\u4ee5\u8ba9\u7f51\u9875\u505a\u51fa\u54cd\u5e94\u3002<code>addEventListener<\/code>\u65b9\u6cd5\u662f\u73b0\u4ee3JavaScript\u4e2d\u6dfb\u52a0\u4e8b\u4ef6\u5904\u7406\u5668\u7684\u63a8\u8350\u65b9\u5f0f\u4e4b\u4e00\uff0c\u5b83\u5141\u8bb8\u4e3a\u5143\u7d20\u6dfb\u52a0\u591a\u4e2a\u4e8b\u4ef6\u5904\u7406\u5668\uff0c\u4e14\u66f4\u7075\u6d3b\u3001\u529f\u80fd\u66f4\u5f3a\u5927\u3002<\/p>\n<\/p>\n<p><p>\u4f8b\u5982\uff0c<code>element.addEventListener(&#039;click&#039;, function() {alert(&#039;Element clicked!&#039;);})<\/code>\u4f1a\u5728\u5143\u7d20\u88ab\u70b9\u51fb\u65f6\u5f39\u51fa\u8b66\u544a\u6846\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u52bf\u5728\u4e8e\u53ef\u4ee5\u4e3a\u540c\u4e00\u4e2a\u4e8b\u4ef6\u6dfb\u52a0\u591a\u4e2a\u4e8b\u4ef6\u5904\u7406\u5668\uff0c\u4e14\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u79fb\u9664\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u52a8\u753b\u6548\u679c<\/h3>\n<\/p>\n<p><p>\u5229\u7528JavaScript\u548cDOM\uff0c\u8fd8\u53ef\u4ee5\u521b\u5efa\u5404\u79cd\u52a8\u753b\u6548\u679c\u3002\u8fd9\u901a\u5e38\u6d89\u53ca\u5230\u5468\u671f\u6027\u5730\u4fee\u6539\u5143\u7d20\u7684\u6837\u5f0f\u5c5e\u6027\uff0c\u5982\u4f4d\u7f6e\u3001\u5927\u5c0f\u3001\u989c\u8272\u7b49\u3002<code>requestAnimationFrame<\/code>\u662f\u5b9e\u73b0\u52a8\u753b\u7684\u73b0\u4ee3\u65b9\u6cd5\uff0c\u5b83\u544a\u8bc9\u6d4f\u89c8\u5668\u4f60\u5e0c\u671b\u6267\u884c\u52a8\u753b\uff0c\u5e76\u8bf7\u6c42\u6d4f\u89c8\u5668\u5728\u4e0b\u6b21\u91cd\u7ed8\u4e4b\u524d\u8c03\u7528\u6307\u5b9a\u7684\u56de\u8c03\u51fd\u6570\u66f4\u65b0\u52a8\u753b\u3002\u8fd9\u4e2a\u65b9\u6cd5\u6709\u5f88\u591a\u4f18\u70b9\uff0c\u5305\u62ec\u8282\u7701\u8d44\u6e90\u548c\u66f4\u5e73\u6ed1\u7684\u52a8\u753b\u6548\u679c\u3002<\/p>\n<\/p>\n<p><p>\u5229\u7528JavaScript\u7684\u8fd9\u4e9bDOM\u7f16\u7a0b\u80fd\u529b\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u521b\u5efa\u51fa\u529f\u80fd\u4e30\u5bcc\u3001\u4ea4\u4e92\u6027\u5f3a\u3001\u7528\u6237\u4f53\u9a8c\u597d\u7684\u7f51\u9875\u5e94\u7528\u3002\u65e0\u8bba\u662f\u9009\u62e9\u548c\u4fee\u6539DOM\u5143\u7d20\uff0c\u8fd8\u662f\u5904\u7406\u4e8b\u4ef6\u548c\u521b\u5efa\u52a8\u753b\uff0c\u638c\u63e1\u4e86\u8fd9\u4e9b\u6280\u672f\uff0c\u5c31\u80fd\u6709\u6548\u63d0\u5347\u7f51\u9875\u7684\u8868\u73b0\u529b\u548c\u4e92\u52a8\u6027\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>1. 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