{"id":314933,"date":"2024-05-20T23:47:16","date_gmt":"2024-05-20T15:47:16","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/314933.html"},"modified":"2024-05-20T23:47:30","modified_gmt":"2024-05-20T15:47:30","slug":"html-%e7%9a%84-dom-%e4%ba%8b%e4%bb%b6%e7%9b%b8%e5%85%b3%e7%9f%a5%e8%af%86%e6%9c%89%e5%93%aa%e4%ba%9b","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/314933.html","title":{"rendered":"HTML \u7684 DOM \u4e8b\u4ef6\u76f8\u5173\u77e5\u8bc6\u6709\u54ea\u4e9b"},"content":{"rendered":"

\"HTML<\/p>\n

HTML\u7684DOM\uff08Document Object Model\uff09\u4e8b\u4ef6\u76f8\u5173\u77e5\u8bc6\u8986\u76d6\u4e86\u5e7f\u6cdb\u7684\u9886\u57df\uff0c\u5305\u62ec\u4e8b\u4ef6\u6a21\u578b\u3001\u4e8b\u4ef6\u7c7b\u578b\u3001\u4e8b\u4ef6\u76d1\u542c\u5668\u3001\u4e8b\u4ef6\u6d41\u3001\u4e8b\u4ef6\u5bf9\u8c61<\/strong>\u7b49\u3002\u5728\u8fd9\u4e9b\u77e5\u8bc6\u70b9\u4e2d\uff0c\u4e8b\u4ef6\u76d1\u542c\u5668<\/strong>\u5c24\u5176\u91cd\u8981\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u7ed1\u5b9a\u51fd\u6570\u6216\u65b9\u6cd5\u5230\u7279\u5b9a\u4e8b\u4ef6\uff08\u5982\u7528\u6237\u70b9\u51fb\u3001\u9f20\u6807\u79fb\u52a8\u7b49\uff09\u4e0a\uff0c\u4ee5\u4fbf\u5f53\u8fd9\u4e9b\u4e8b\u4ef6\u53d1\u751f\u65f6\u6267\u884c\u76f8\u5e94\u7684\u4ee3\u7801\u3002\u4e8b\u4ef6\u76d1\u542c\u5668\u53ef\u4ee5\u4f7f\u7528addEventListener<\/code>\u65b9\u6cd5\u6dfb\u52a0\uff0c\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5728HTML\u5143\u7d20\u7684\u5c5e\u6027\u4e2d\u5b9a\u4e49\uff0c\u5982onclick<\/code>\u3002\u6b64\u5916\uff0c\u4f7f\u7528\u4e8b\u4ef6\u76d1\u542c\u5668\u7684\u65b9\u5f0f\u66f4\u706f\u5854\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u4f60\u4e3a\u540c\u4e00\u4e2a\u4e8b\u4ef6\u7ed1\u5b9a\u591a\u4e2a\u5904\u7406\u51fd\u6570\uff0c\u800c\u4e0d\u5fc5\u62c5\u5fc3\u4f1a\u8986\u76d6\u4e4b\u524d\u7684\u4e8b\u4ef6\u5904\u7406\u903b\u8f91\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4e8b\u4ef6\u6a21\u578b<\/h3>\n<\/p>\n

HTML DOM\u7684\u4e8b\u4ef6\u6a21\u578b\u6307\u7684\u662f\u63cf\u8ff0\u4e8b\u4ef6\u5982\u4f55\u4ece\u89e6\u53d1\u70b9\u4f20\u64ad\u5230\u6355\u83b7\u5bf9\u8c61\u7684\u7406\u8bba\u6a21\u578b\u3002\u5b83\u4e3b\u8981\u5305\u62ec\u4e24\u4e2a\u5173\u952e\u6982\u5ff5\uff1a\u5192\u6ce1\u548c\u6355\u83b7\u3002<\/p>\n<\/p>\n

    \n
  • \u5192\u6ce1<\/strong>\uff1a\u4e8b\u4ef6\u5f00\u59cb\u65f6\u4ece\u6700\u5177\u4f53\u7684\u5143\u7d20\uff08\u4e8b\u4ef6\u7684\u76ee\u6807\u8282\u70b9\uff09\u63a5\u6536\uff0c\u7136\u540e\u9010\u7ea7\u5411\u4e0a\u4f20\u64ad\u5230\u8f83\u4e3a\u4e0d\u5177\u4f53\u7684\u8282\u70b9\uff08\u6587\u6863\uff09\u3002<\/li>\n
  • \u6355\u83b7<\/strong>\uff1a\u4e0e\u5192\u6ce1\u76f8\u53cd\uff0c\u4e8b\u4ef6\u4ece\u6700\u4e0d\u5177\u4f53\u7684\u8282\u70b9\uff08\u6587\u6863\uff09\u5f00\u59cb\u53d1\u751f\uff0c\u7136\u540e\u9010\u7ea7\u5411\u4e0b\uff0c\u76f4\u5230\u5230\u8fbe\u4e8b\u4ef6\u7684\u76ee\u6807\u8282\u70b9\u3002<\/li>\n<\/ul>\n

    \u4e86\u89e3\u8fd9\u4e24\u79cd\u6a21\u578b\u5bf9\u4e8e\u6b63\u786e\u5730\u4f7f\u7528\u4e8b\u4ef6\u5904\u7406\u5668\u548c\u786e\u4fdd\u5e94\u7528\u7684\u903b\u8f91\u6309\u9884\u671f\u6267\u884c\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<\/p>\n

    \u4e8c\u3001\u4e8b\u4ef6\u7c7b\u578b<\/h3>\n<\/p>\n

    DOM\u4e8b\u4ef6\u6709\u8bb8\u591a\u7c7b\u578b\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u4e8eclick<\/code>\u3001mouseover<\/code>\u3001mouseout<\/code>\u3001keydown<\/code>\u3001load<\/code>\u3001focus<\/code>\u3001\u548cblur<\/code>\u7b49\u3002\u6bcf\u79cd\u4e8b\u4ef6\u7c7b\u578b\u90fd\u4e0e\u7279\u5b9a\u7684\u7528\u6237\u4ea4\u4e92\u884c\u4e3a\u76f8\u5bf9\u5e94\u3002<\/p>\n<\/p>\n

      \n
    • \u7528\u6237\u4ea4\u4e92\u4e8b\u4ef6<\/strong>\uff1a\u4f8b\u5982click<\/code>\u3001dblclick<\/code>\u3001mouseover<\/code>\u3001mouseout<\/code>\u7b49\uff0c\u8fd9\u4e9b\u4e8b\u4ef6\u901a\u5e38\u7528\u4e8e\u54cd\u5e94\u7528\u6237\u7684\u9f20\u6807\u64cd\u4f5c\u3002<\/li>\n
    • UI\u4e8b\u4ef6<\/strong>\uff1a\u5982load<\/code>\u3001unload<\/code>\u3001abort<\/code>\u3001error<\/code>\u3001select<\/code>\u3001resize<\/code>\u3001scroll<\/code>\u7b49\uff0c\u5b83\u4eec\u901a\u5e38\u7528\u4e8e\u76d1\u63a7\u5143\u7d20\u6216\u6574\u4e2a\u9875\u9762\u7684\u72b6\u6001\u53d8\u5316\u3002<\/li>\n<\/ul>\n

      \u4e86\u89e3\u4e0d\u540c\u7684\u4e8b\u4ef6\u7c7b\u578b\u53ca\u5176\u7528\u9014\u6709\u52a9\u4e8e\u5f00\u53d1\u8005\u8bbe\u8ba1\u51fa\u66f4\u597d\u7684\u7528\u6237\u4ea4\u4e92\u4f53\u9a8c\u3002<\/p>\n<\/p>\n

      \u4e09\u3001\u4e8b\u4ef6\u76d1\u542c\u5668<\/h3>\n<\/p>\n

      \u4e8b\u4ef6\u76d1\u542c\u5668\u662f\u4e00\u79cd\u673a\u5236\uff0c\u5141\u8bb8\u7a0b\u5e8f\u54cd\u5e94\u53d1\u751f\u7684\u4e8b\u4ef6\u3002\u901a\u8fc7\u4f7f\u7528\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6307\u5b9a\u5f53\u7279\u5b9a\u4e8b\u4ef6\u53d1\u751f\u65f6\u5e94\u8be5\u6267\u884c\u7684\u4ee3\u7801\u3002<\/p>\n<\/p>\n

        \n
      • addEventListener<\/strong>\uff1a\u8fd9\u662f\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668\u7684\u63a8\u8350\u65b9\u6cd5\u3002\u5b83\u5141\u8bb8\u4f60\u5411\u4efb\u4f55\u5bf9\u8c61\u6dfb\u52a0\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\uff0c\u66f4\u91cd\u8981\u7684\u662f\uff0c\u5b83\u652f\u6301\u4e8b\u4ef6\u6355\u83b7\u548c\u5192\u6ce1\uff0c\u4ee5\u53ca\u6dfb\u52a0\u591a\u4e2a\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u7ed9\u540c\u4e00\u4e2a\u4e8b\u4ef6\u3002<\/li>\n
      • \u4f20\u7edf\u4e8b\u4ef6\u5904\u7406\u5c5e\u6027<\/strong>\uff1a\u5982onclick<\/code>\u3001onmouseover<\/code>\u7b49\uff0c\u76f4\u63a5\u5728HTML\u5143\u7d20\u4e2d\u4f7f\u7528\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u6613\u7528\uff0c\u4f46\u5b83\u4e0d\u652f\u6301\u540c\u65f6\u7ed1\u5b9a\u591a\u4e2a\u5904\u7406\u7a0b\u5e8f\u5230\u4e00\u4e2a\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n

        \u901a\u8fc7\u7406\u89e3\u548c\u8fd0\u7528\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u66f4\u7cbe\u51c6\u5730\u63a7\u5236\u5e94\u7528\u7a0b\u5e8f\u7684\u884c\u4e3a\u3002<\/p>\n<\/p>\n

        \u56db\u3001\u4e8b\u4ef6\u6d41<\/h3>\n<\/p>\n

        \u4e8b\u4ef6\u6d41\u63cf\u8ff0\u4e86\u4ece\u9875\u9762\u4e2d\u63a5\u6536\u4e8b\u4ef6\u7684\u987a\u5e8f\u3002\u5982\u524d\u6240\u8ff0\uff0c\u5b83\u5305\u62ec\u4e24\u4e2a\u9636\u6bb5\uff1a\u5192\u6ce1\u548c\u6355\u83b7\u3002<\/p>\n<\/p>\n

          \n
        • \u4e8b\u4ef6\u6355\u83b7\u9636\u6bb5<\/strong>\uff1a\u4ecewindow<\/code>\u5bf9\u8c61\u4f20\u5bfc\u5230\u76ee\u6807\u5143\u7d20\u7684\u8fc7\u7a0b\u3002<\/li>\n
        • \u5192\u6ce1\u9636\u6bb5<\/strong>\uff1a\u4ece\u76ee\u6807\u5143\u7d20\u4f20\u56de\u5230window<\/code>\u5bf9\u8c61\u7684\u8fc7\u7a0b\u3002<\/li>\n<\/ul>\n

          \u4e86\u89e3\u4e8b\u4ef6\u6d41\u53ca\u5176\u673a\u5236\u5bf9\u4e8e\u7ba1\u7406\u590d\u6742\u7684\u4e8b\u4ef6\u5904\u7406\u903b\u8f91\u81f3\u5173\u91cd\u8981\uff0c\u5c24\u5176\u662f\u5f53\u591a\u4e2a\u4e8b\u4ef6\u5904\u7406\u5668\u5e94\u7528\u4e8e\u76f8\u540c\u7684\u4e8b\u4ef6\u65f6\u3002<\/p>\n<\/p>\n

          \u4e94\u3001\u4e8b\u4ef6\u5bf9\u8c61<\/h3>\n<\/p>\n

          \u4e8b\u4ef6\u5bf9\u8c61\u662f\u5728\u4e8b\u4ef6\u4ea7\u751f\u65f6\u7531\u6d4f\u89c8\u5668\u81ea\u52a8\u521b\u5efa\u7684\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5b83\u5305\u542b\u4e86\u5173\u4e8e\u4e8b\u4ef6\u7684\u6240\u6709\u4fe1\u606f\uff0c\u6bd4\u5982\u53d1\u751f\u4e8b\u4ef6\u7684\u5143\u7d20\u3001\u4e8b\u4ef6\u7c7b\u578b\u4ee5\u53ca\u5176\u4ed6\u4e0e\u7279\u5b9a\u4e8b\u4ef6\u76f8\u5173\u7684\u4fe1\u606f\u3002<\/p>\n<\/p>\n

            \n
          • event.target<\/strong>\uff1a\u4e8b\u4ef6\u53d1\u751f\u7684\u76ee\u6807\u5143\u7d20\u3002<\/li>\n
          • event.type<\/strong>\uff1a\u53d1\u751f\u7684\u4e8b\u4ef6\u7c7b\u578b\u3002<\/li>\n
          • event.preventDefault()<\/strong>\uff1a\u65b9\u6cd5\u53ef\u4ee5\u963b\u6b62\u4e8b\u4ef6\u7684\u9ed8\u8ba4\u884c\u4e3a\u3002<\/li>\n<\/ul>\n

            \u6df1\u5165\u7406\u89e3\u4e8b\u4ef6\u5bf9\u8c61\u53ca\u5176\u5c5e\u6027\u548c\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u52a0\u51c6\u786e\u5730\u63a7\u5236\u4e8b\u4ef6\u7684\u5904\u7406\u903b\u8f91\uff0c\u5b9e\u73b0\u66f4\u52a0\u7ec6\u81f4\u548c\u590d\u6742\u7684\u7528\u6237\u754c\u9762\u4ea4\u4e92\u6548\u679c\u3002<\/p>\n<\/p>\n

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

            1. HTML\u7684DOM\u4e8b\u4ef6\u662f\u4ec0\u4e48\uff1f<\/strong>
            \nDOM\uff08\u6587\u6863\u5bf9\u8c61\u6a21\u578b\uff09\u4e8b\u4ef6\u662f\u6307\u5728HTML\u6587\u6863\u4e2d\u53d1\u751f\u7684\u7279\u5b9a\u52a8\u4f5c\uff0c\u5982\u7528\u6237\u70b9\u51fb\u6309\u94ae\u3001\u9f20\u6807\u79fb\u52a8\u7b49\u3002\u901a\u8fc7\u4f7f\u7528DOM\u4e8b\u4ef6\uff0c\u53ef\u4ee5\u5728\u7279\u5b9a\u7684\u4e8b\u4ef6\u89e6\u53d1\u65f6\u6267\u884c\u76f8\u5e94\u7684JavaScript\u4ee3\u7801\u3002<\/p>\n

            2. \u5982\u4f55\u7ed9HTML\u5143\u7d20\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668\uff1f<\/strong>
            \n\u8981\u7ed9HTML\u5143\u7d20\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u53ef\u4ee5\u4f7f\u7528addEventListener()\u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u63a5\u6536\u4e09\u4e2a\u53c2\u6570\uff1a\u4e8b\u4ef6\u7c7b\u578b\u3001\u8981\u6267\u884c\u7684\u51fd\u6570\u3001\u662f\u5426\u5728\u6355\u83b7\u9636\u6bb5\u6267\u884c\u3002\u4f8b\u5982\uff0c\u8981\u4e3a\u4e00\u4e2a\u6309\u94ae\u6dfb\u52a0\u70b9\u51fb\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u53ef\u4ee5\u7f16\u5199\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

            const button = document.querySelector('button');\nbutton.addEventListener('click', function() {\n  \/\/ \u6267\u884c\u76f8\u5e94\u7684\u4ee3\u7801\n});\n<\/code><\/pre>\n
            3. HTML\u4e2d\u5e38\u89c1\u7684DOM\u4e8b\u4ef6\u6709\u54ea\u4e9b\uff1f<\/strong>
            \nHTML\u4e2d\u5e38\u89c1\u7684DOM\u4e8b\u4ef6\u6709click\uff08\u9f20\u6807\u70b9\u51fb\u4e8b\u4ef6\uff09\u3001mouseover\uff08\u9f20\u6807\u60ac\u505c\u4e8b\u4ef6\uff09\u3001keydown\uff08\u952e\u76d8\u6309\u4e0b\u4e8b\u4ef6\uff09\u3001load\uff08\u9875\u9762\u52a0\u8f7d\u4e8b\u4ef6\uff09\u7b49\u7b49\u3002\u53ef\u4ee5\u6839\u636e\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u4e8b\u4ef6\u7c7b\u578b\uff0c\u5e76\u901a\u8fc7\u4e8b\u4ef6\u76d1\u542c\u5668\u6267\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"HTML\u7684DOM\uff08Document Object Model\uff09\u4e8b\u4ef6\u76f8\u5173\u77e5\u8bc6\u8986\u76d6\u4e86\u5e7f\u6cdb\u7684\u9886\u57df\uff0c\u5305\u62ec\u4e8b\u4ef6\u6a21\u578b\u3001\u4e8b\u4ef6 […]","protected":false},"author":3,"featured_media":314949,"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\/314933"}],"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=314933"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/314933\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/314949"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=314933"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=314933"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=314933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}