{"id":159868,"date":"2024-05-08T13:18:41","date_gmt":"2024-05-08T05:18:41","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/159868.html"},"modified":"2024-05-08T13:18:48","modified_gmt":"2024-05-08T05:18:48","slug":"%e5%89%8d%e7%ab%af-javascript-%e4%bb%a3%e7%a0%81%e4%b8%ad%e6%9c%89%e5%93%aa%e4%ba%9b%e4%ba%8b%e4%bb%b6%e5%a4%84%e7%90%86%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/159868.html","title":{"rendered":"\u524d\u7aef javascript \u4ee3\u7801\u4e2d\u6709\u54ea\u4e9b\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5"},"content":{"rendered":"

\"\u524d\u7aef<\/p>\n

\u5728\u524d\u7aefJavaScript\u4ee3\u7801\u4e2d\uff0c\u5904\u7406\u4e8b\u4ef6\u7684\u65b9\u6cd5\u4e3b\u8981\u5305\u62ec\u76f4\u63a5\u5728HTML\u5143\u7d20\u4e2d\u4f7f\u7528\u4e8b\u4ef6\u5904\u7406\u5c5e\u6027\u3001\u4f7f\u7528DOM\u5c5e\u6027\u7ed1\u5b9a\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u3001\u4ee5\u53ca\u4f7f\u7528addEventListener()\u65b9\u6cd5\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668<\/strong>\u3002\u8fd9\u4e09\u79cd\u65b9\u6cd5\u5404\u6709\u7279\u70b9\u3001\u9002\u7528\u573a\u666f\u3001\u4ee5\u53ca\u4f18\u7f3a\u70b9\uff0c\u4f46\u5e7f\u6cdb\u5e94\u7528\u4e8e\u524d\u7aef\u5f00\u53d1\u4e2d\u3002\u4f7f\u7528addEventListener()\u65b9\u6cd5\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668<\/strong>\u662f\u5176\u4e2d\u6700\u7075\u6d3b\u3001\u6700\u5e38\u7528\u7684\u4e00\u79cd\u65b9\u6cd5\u3002\u5b83\u5141\u8bb8\u6211\u4eec\u4e3a\u4e00\u4e2a\u5143\u7d20\u7ed1\u5b9a\u591a\u4e2a\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u3001\u63a7\u5236\u4e8b\u4ef6\u7684\u6355\u83b7\u6216\u5192\u6ce1\u9636\u6bb5\uff0c\u5e76\u4e14\u5728\u73b0\u4ee3\u6d4f\u89c8\u5668\u4e2d\u5f97\u5230\u4e86\u5e7f\u6cdb\u652f\u6301\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u76f4\u63a5\u5728HTML\u4e2d\u4f7f\u7528\u4e8b\u4ef6\u5904\u7406\u5c5e\u6027<\/h3>\n<\/p>\n

\u76f4\u63a5\u5728HTML\u6807\u7b7e\u5185\u90e8\u4f7f\u7528\u4e8b\u4ef6\u5904\u7406\u5c5e\u6027\u662f\u5904\u7406\u4e8b\u4ef6\u7684\u6700\u76f4\u89c2\u65b9\u5f0f\u4e4b\u4e00\u3002\u5f00\u53d1\u8005\u53ea\u9700\u5728\u6807\u7b7e\u5185\u6dfb\u52a0\u5982onclick<\/code>\u3001onmouseover<\/code>\u7b49\u4e8b\u4ef6\u5c5e\u6027\uff0c\u5e76\u8d4b\u503c\u4e3a\u8981\u6267\u884c\u7684JavaScript\u4ee3\u7801\u6216\u51fd\u6570\u540d\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u6d01\u76f4\u89c2\uff0c\u5bb9\u6613\u7406\u89e3\u548c\u4f7f\u7528\uff0c\u9002\u5408\u521d\u5b66\u8005\u6216\u662f\u5c0f\u578b\u9879\u76ee\u3002<\/p>\n<\/p>\n

\u7136\u800c\uff0c\u8fd9\u79cd\u65b9\u6cd5\u5c06\u903b\u8f91\u4ee3\u7801\u548c\u7ed3\u6784\u4ee3\u7801\u8026\u5408\u5728\u4e00\u8d77\uff0c\u96be\u4ee5\u7ef4\u62a4\uff0c\u4e14\u4e0d\u5229\u4e8e\u5b9e\u73b0JavaScript\u4ee3\u7801\u7684\u6a21\u5757\u5316\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u8fd9\u79cd\u65b9\u5f0f\u5f88\u96be\u5bf9\u540c\u4e00\u4e2a\u4e8b\u4ef6\u7ed1\u5b9a\u591a\u4e2a\u5904\u7406\u51fd\u6570\uff0c\u9650\u5236\u4e86\u5176\u5728\u590d\u6742\u5e94\u7528\u4e2d\u7684\u5e94\u7528\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u4f7f\u7528DOM\u5c5e\u6027\u7ed1\u5b9a\u4e8b\u4ef6\u5904\u7406\u51fd\u6570<\/h3>\n<\/p>\n

\u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u5728JavaScript\u4ee3\u7801\u4e2d\u901a\u8fc7DOM\u5143\u7d20\u7684\u5c5e\u6027\u76f4\u63a5\u7ed1\u5b9a\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\uff0c\u5982\u901a\u8fc7\u8bbe\u7f6e\u5143\u7d20\u7684element.onclick<\/code>\u6216element.onmouseover<\/code>\u5c5e\u6027\u3002\u8fd9\u79cd\u65b9\u5f0f\u5c06\u4e8b\u4ef6\u5904\u7406\u4ee3\u7801\u4e0eHTML\u7ed3\u6784\u5206\u79bb\uff0c\u6709\u5229\u4e8e\u7ef4\u62a4\u548c\u6a21\u5757\u5316\u8bbe\u8ba1\u3002<\/p>\n<\/p>\n

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\u4e09\u3001\u4f7f\u7528addEventListener()\u65b9\u6cd5\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668<\/h3>\n<\/p>\n

\u5728\u73b0\u4ee3Web\u5f00\u53d1\u5b9e\u8df5\u4e2d\uff0c\u4f7f\u7528addEventListener()<\/code>\u65b9\u6cd5\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668\u662f\u6700\u63a8\u8350\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u3002\u5b83\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\u548c\u63a7\u5236\u80fd\u529b\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4e3a\u540c\u4e00\u4e8b\u4ef6\u7ed1\u5b9a\u591a\u4e2a\u5904\u7406\u51fd\u6570\u3001\u7cbe\u786e\u63a7\u5236\u4e8b\u4ef6\u6355\u83b7\u6216\u5192\u6ce1\u9636\u6bb5\uff0c\u4ee5\u53ca\u66f4\u8f7b\u677e\u5730\u5b9e\u73b0\u8de8\u6d4f\u89c8\u5668\u7684\u4e8b\u4ef6\u5904\u7406\u3002<\/p>\n<\/p>\n

\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u7684\u57fa\u672c\u8bed\u6cd5\u662felement.addEventListener(event, function, useCapture)<\/code>\uff0c\u5176\u4e2devent<\/code>\u662f\u4e8b\u4ef6\u540d\u79f0\uff0cfunction<\/code>\u662f\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\uff0cuseCapture<\/code>\u662f\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u6307\u5b9a\u4e8b\u4ef6\u662f\u5728\u6355\u83b7\u9636\u6bb5\u5904\u7406\u8fd8\u662f\u5728\u5192\u6ce1\u9636\u6bb5\u5904\u7406\u3002<\/p>\n<\/p>\n

addEventListener()<\/code>\u7684\u53e6\u4e00\u4e2a\u91cd\u8981\u7279\u6027\u662f\u5b83\u80fd\u591f\u65b9\u4fbf\u5730\u5b9e\u73b0\u4e8b\u4ef6\u59d4\u6258\u3002\u901a\u8fc7\u5728\u7236\u5143\u7d20\u4e0a\u6dfb\u52a0\u76d1\u542c\u5668\u6765\u5904\u7406\u5b50\u5143\u7d20\u7684\u4e8b\u4ef6\uff0c\u8fd9\u79cd\u65b9\u5f0f\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u6548\u7387\u548c\u6027\u80fd\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u52a8\u6001\u5185\u5bb9\u65f6\u3002<\/p>\n<\/p>\n

\u7ed3\u8bba<\/h3>\n<\/p>\n

JavaScript\u63d0\u4f9b\u4e86\u591a\u79cd\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\uff0c\u4f46\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u63a8\u8350\u4f7f\u7528addEventListener()<\/code>\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u7075\u6d3b\u6027\u548c\u517c\u5bb9\u6027\u3002\u9009\u62e9\u5408\u9002\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4f7f\u524d\u7aef\u4ee3\u7801\u66f4\u52a0\u4f18\u96c5\u3001\u9ad8\u6548\u3002\u4e0d\u8fc7\uff0c\u5f00\u53d1\u8005\u4e5f\u9700\u8981\u6839\u636e\u9879\u76ee\u7684\u5177\u4f53\u9700\u6c42\u548c\u573a\u666f\uff0c\u7075\u6d3b\u9009\u62e9\u4f7f\u7528\u4e0d\u540c\u7684\u4e8b\u4ef6\u5904\u7406\u7b56\u7565\u3002<\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

1. JavaScript\u4e2d\u5e38\u89c1\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f<\/strong>
\n\u5728\u524d\u7aef\u7684JavaScript\u4ee3\u7801\u4e2d\uff0c\u5e38\u89c1\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u6709\uff1a<\/p>\n

    \n
  • onClick\uff1a\u7528\u4e8e\u5904\u7406\u5143\u7d20\u88ab\u70b9\u51fb\u7684\u4e8b\u4ef6\u3002<\/li>\n
  • onFocus\uff1a\u7528\u4e8e\u5904\u7406\u5143\u7d20\u83b7\u53d6\u7126\u70b9\u7684\u4e8b\u4ef6\u3002<\/li>\n
  • onBlur\uff1a\u7528\u4e8e\u5904\u7406\u5143\u7d20\u5931\u53bb\u7126\u70b9\u7684\u4e8b\u4ef6\u3002<\/li>\n
  • onKeyPress\uff1a\u7528\u4e8e\u5904\u7406\u952e\u76d8\u6309\u952e\u88ab\u6309\u4e0b\u7684\u4e8b\u4ef6\u3002<\/li>\n
  • onMouseOver\uff1a\u7528\u4e8e\u5904\u7406\u9f20\u6807\u6307\u9488\u79fb\u52a8\u5230\u5143\u7d20\u4e0a\u65b9\u7684\u4e8b\u4ef6\u3002<\/li>\n
  • onSubmit\uff1a\u7528\u4e8e\u5904\u7406\u8868\u5355\u63d0\u4ea4\u7684\u4e8b\u4ef6\u3002<\/li>\n
  • onLoad\uff1a\u7528\u4e8e\u5904\u7406\u9875\u9762\u52a0\u8f7d\u5b8c\u6210\u7684\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n

    2. \u5982\u4f55\u5728JavaScript\u4e2d\u7ed1\u5b9a\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\uff1f<\/strong>
    \n\u5728JavaScript\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5c06\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u7ed1\u5b9a\u5230\u5143\u7d20\u4e0a\uff1a<\/p>\n

      \n
    • \u4f7f\u7528HTML\u6807\u7b7e\u7684\u5c5e\u6027\uff1a\u4f8b\u5982\uff0c\u53ef\u4ee5\u5728HTML\u7684\u5143\u7d20\u6807\u7b7e\u4e2d\u6dfb\u52a0\u4f8b\u5982onclick<\/code>\u3001onblur<\/code>\u7b49\u5c5e\u6027\uff0c\u4e3a\u5176\u6307\u5b9a\u8981\u6267\u884c\u7684JavaScript\u4ee3\u7801\u3002<\/li>\n
    • \u4f7f\u7528DOM\u65b9\u6cd5\uff1a\u53ef\u4ee5\u901a\u8fc7JavaScript\u7684DOM\u64cd\u4f5c\u65b9\u6cd5\u83b7\u53d6\u5230\u5143\u7d20\u5bf9\u8c61\uff0c\u7136\u540e\u8c03\u7528addEventListener<\/code>\u65b9\u6cd5\uff0c\u5c06\u4e8b\u4ef6\u7c7b\u578b\u548c\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u4f5c\u4e3a\u53c2\u6570\u4f20\u5165\u5373\u53ef\u3002<\/li>\n
    • \u4f7f\u7528jQuery\uff1a\u5982\u679c\u4f7f\u7528\u4e86jQuery\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528on<\/code>\u65b9\u6cd5\u6765\u7ed1\u5b9a\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\uff0c\u4f8b\u5982$('\u5143\u7d20\u9009\u62e9\u5668').on('\u4e8b\u4ef6\u7c7b\u578b', \u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5)<\/code>\u3002<\/li>\n<\/ul>\n

      3. \u5982\u4f55\u9632\u6b62\u4e8b\u4ef6\u5192\u6ce1\uff1f<\/strong>
      \n\u6709\u65f6\u5019\uff0c\u6211\u4eec\u5e0c\u671b\u5728\u4e00\u4e2a\u7236\u5143\u7d20\u4e0a\u7ed1\u5b9a\u4e86\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u540e\uff0c\u5b50\u5143\u7d20\u4e0a\u7684\u4e8b\u4ef6\u4e0d\u4f1a\u89e6\u53d1\u7236\u5143\u7d20\u4e0a\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\uff0c\u8fd9\u65f6\u9700\u8981\u9632\u6b62\u4e8b\u4ef6\u5192\u6ce1\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u6765\u5b9e\u73b0\uff1a<\/p>\n

        \n
      • \u4f7f\u7528event.stopPropagation()<\/code>\u65b9\u6cd5\uff1a\u5f53\u5b50\u5143\u7d20\u4e0a\u7684\u4e8b\u4ef6\u88ab\u89e6\u53d1\u65f6\uff0c\u5728\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u4e2d\u8c03\u7528event.stopPropagation()<\/code>\u53ef\u4ee5\u963b\u6b62\u4e8b\u4ef6\u7ee7\u7eed\u5411\u4e0a\u5192\u6ce1\uff0c\u4ece\u800c\u53ea\u89e6\u53d1\u5b50\u5143\u7d20\u4e0a\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\uff0c\u800c\u4e0d\u89e6\u53d1\u7236\u5143\u7d20\u4e0a\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u3002<\/li>\n
      • \u4f7f\u7528event.preventDefault()<\/code>\u65b9\u6cd5\uff1a\u5728\u67d0\u4e9b\u573a\u666f\u4e2d\uff0c\u6211\u4eec\u53ef\u80fd\u4e0d\u4ec5\u8981\u9632\u6b62\u4e8b\u4ef6\u5192\u6ce1\uff0c\u8fd8\u8981\u963b\u6b62\u4e8b\u4ef6\u7684\u9ed8\u8ba4\u884c\u4e3a\u3002\u53ef\u4ee5\u5728\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u4e2d\u8c03\u7528event.preventDefault()<\/code>\u65b9\u6cd5\uff0c\u53d6\u6d88\u4e8b\u4ef6\u7684\u9ed8\u8ba4\u884c\u4e3a\uff0c\u4ece\u800c\u5b9e\u73b0\u9632\u6b62\u4e8b\u4ef6\u5192\u6ce1\u7684\u6548\u679c\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"\u5728\u524d\u7aefJavaScript\u4ee3\u7801\u4e2d\uff0c\u5904\u7406\u4e8b\u4ef6\u7684\u65b9\u6cd5\u4e3b\u8981\u5305\u62ec\u76f4\u63a5\u5728HTML\u5143\u7d20\u4e2d\u4f7f\u7528\u4e8b\u4ef6\u5904\u7406\u5c5e\u6027\u3001\u4f7f\u7528DOM\u5c5e\u6027\u7ed1 […]","protected":false},"author":3,"featured_media":159880,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/159868"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=159868"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/159868\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/159880"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=159868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=159868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=159868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}