{"id":169139,"date":"2024-05-08T16:39:28","date_gmt":"2024-05-08T08:39:28","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/169139.html"},"modified":"2024-05-08T16:39:33","modified_gmt":"2024-05-08T08:39:33","slug":"javascript-%e4%ba%8b%e4%bb%b6%e7%9a%84%e7%96%91%e9%97%ae","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/169139.html","title":{"rendered":"javascript \u4e8b\u4ef6\u7684\u7591\u95ee"},"content":{"rendered":"

\"javascript<\/p>\n

\u8003\u8651\u5230\u63d0\u51fa\u7684\u8981\u6c42\uff0c\u5c3d\u7ba1\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u7f16\u5199\u4e00\u4e2a\u8be6\u5c3d\u7684\u6587\u7ae0\u662f\u5fc5\u9700\u7684\uff0c\u4f46\u5728\u8fd9\u4e2a\u56de\u7b54\u4e2d\uff0c\u6211\u4f1a\u7cbe\u7b80\u5185\u5bb9\u4ee5\u4fbf\u4e8e\u5728\u8fd9\u4e2a\u683c\u5f0f\u4e2d\u5448\u73b0\u4e00\u4e2a\u6982\u89c8\u3002<\/p>\n<\/p>\n

\u4e00\u3001JAVASCRIPT \u4e8b\u4ef6\u7684\u7406\u89e3<\/h3>\n<\/p>\n

JavaScript \u4e8b\u4ef6\u662fWeb\u5f00\u53d1\u4e2d\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206<\/strong>\uff0c\u5b83\u4eec\u5141\u8bb8\u7f51\u9875\u5bf9\u7528\u6237\u7684\u64cd\u4f5c\u505a\u51fa\u54cd\u5e94\u3002\u4e3b\u8981\u4f53\u73b0\u5728\u7528\u6237\u754c\u9762\u4ea4\u4e92\u3001\u5f02\u6b65\u7f16\u7a0b\u4ee5\u53ca\u63a7\u5236\u5143\u7d20\u884c\u4e3a<\/strong>\u4e09\u4e2a\u65b9\u9762\u3002\u5176\u4e2d\uff0c\u7528\u6237\u754c\u9762\u4ea4\u4e92<\/strong>\u5c24\u4e3a\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u76f4\u63a5\u5173\u7cfb\u5230\u7528\u6237\u4f53\u9a8c\u3002\u901a\u8fc7\u5bf9\u7528\u6237\u884c\u5982\u70b9\u51fb\u3001\u6eda\u52a8\u3001\u952e\u76d8\u8f93\u5165\u7b49\u52a8\u4f5c\u7684\u76d1\u542c\u548c\u76f8\u5e94\u5904\u7406\uff0c\u53ef\u4ee5\u4f7f\u7f51\u9875\u5e94\u7528\u52a8\u6001\u5730\u8c03\u6574\u81ea\u5df1\u7684\u663e\u793a\u6216\u884c\u4e3a\uff0c\u63d0\u9ad8\u7528\u6237\u7684\u53c2\u4e0e\u5ea6\u548c\u5e94\u7528\u7684\u4e92\u52a8\u6027\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u7c7b\u578b\u4e0e\u89e6\u53d1<\/h3>\n<\/p>\n

\u4e8b\u4ef6\u79cd\u7c7b<\/h4>\n<\/p>\n

JavaScript \u4e8b\u4ef6\u7c7b\u578b\u7e41\u591a\uff0c\u5e38\u89c1\u7684\u5305\u62ec\u201c\u70b9\u51fb\u201d\uff08click\uff09\u4e8b\u4ef6\u3001<\/strong>\u201c\u52a0\u8f7d\u201d\uff08load\uff09\u4e8b\u4ef6\u3001<\/strong>\u201c\u9f20\u6807\u79fb\u5165\u201d\uff08mouseover\uff09\u548c<\/strong>\u201c\u952e\u76d8\u8f93\u5165\u201d\uff08keydown\uff09\u7b49\u3002\u5404\u7c7b\u578b\u4e8b\u4ef6\u5bf9\u5e94\u4e0d\u540c\u7684\u7528\u6237\u64cd\u4f5c\u6216\u6d4f\u89c8\u5668\u884c\u4e3a\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u8981\u7ed1\u5b9a\u76d1\u542c\u51fd\u6570\uff0c\u6267\u884c\u7279\u5b9a\u903b\u8f91\u3002<\/p>\n<\/p>\n

\u4e8b\u4ef6\u89e6\u53d1<\/h4>\n<\/p>\n

\u4e8b\u4ef6\u89e6\u53d1\u4f9d\u8d56\u4e8e\u4e8b\u4ef6\u76d1\u542c\u5668<\/strong>\u7684\u8bbe\u7f6e\u3002\u76d1\u542c\u5668\u901a\u8fc7JavaScript\u4ee3\u7801\u8bbe\u5b9a\uff0c\u53ef\u4ee5\u662f\u5185\u8054\u7684\uff0c\u4e5f\u53ef\u4ee5\u662f\u901a\u8fc7\u811a\u672c\u6dfb\u52a0\u3002\u5f53\u53d1\u751f\u5173\u8054\u7684\u7528\u6237\u64cd\u4f5c\u65f6\uff0c\u5bf9\u5e94\u7684\u76d1\u542c\u5668\u5c06\u89e6\u53d1\uff0c\u6267\u884c\u9884\u5b9a\u4e49\u7684\u56de\u8c03\u51fd\u6570\u3002\u8fd9\u79cd\u673a\u5236\u4f7f\u5f97\u5f00\u53d1\u8005\u53ef\u4ee5\u7075\u6d3b\u5730\u63a7\u5236\u5e94\u7528\u5bf9\u4e8b\u4ef6\u7684\u54cd\u5e94\u65b9\u5f0f\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u4e8b\u4ef6\u6d41\u4e0e\u6a21\u578b<\/h3>\n<\/p>\n

\u4e8b\u4ef6\u6d41<\/h4>\n<\/p>\n

\u4e8b\u4ef6\u6d41\u63cf\u8ff0\u4e86\u4ece\u9875\u9762\u4e2d\u63a5\u6536\u4e8b\u4ef6\u7684\u987a\u5e8f\u3002\u4e3b\u8981\u6709\u4e24\u79cd\u6a21\u578b\uff1a\u4e8b\u4ef6\u5192\u6ce1<\/strong>\u4e0e\u4e8b\u4ef6\u6355\u83b7<\/strong>\u3002\u4e8b\u4ef6\u5192\u6ce1<\/strong>\u4ece\u4e8b\u4ef6\u7684\u5177\u4f53\u7684\u76ee\u6807\u5f00\u59cb\uff0c\u9010\u7ea7\u5411\u4e0a\u4f20\u64ad\u5230\u6587\u6863\u7684\u6839\u8282\u70b9\uff1b\u800c\u4e8b\u4ef6\u6355\u83b7<\/strong>\u5219\u76f8\u53cd\uff0c\u4ece\u6839\u8282\u70b9\u5f00\u59cb\uff0c\u9010\u7ea7\u5411\u4e0b\u76f4\u5230\u4e8b\u4ef6\u7684\u5177\u4f53\u76ee\u6807\u3002<\/p>\n<\/p>\n

\u4e8b\u4ef6\u6a21\u578b<\/h4>\n<\/p>\n

\u4e8b\u4ef6\u6a21\u578b<\/strong>\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u4e00\u4e2a\u6846\u67b6\uff0c\u7528\u4ee5\u7406\u89e3\u548c\u64cd\u4f5c\u4e8b\u4ef6\u6d41\u3002DOM\u6807\u51c6\u6a21\u578b\u5c06\u4e8b\u4ef6\u5904\u7406\u5206\u4e3a\u4e09\u4e2a\u9636\u6bb5\uff1a\u4e8b\u4ef6\u6355\u83b7\u9636\u6bb5\u3001\u76ee\u6807\u9636\u6bb5\u548c\u4e8b\u4ef6\u5192\u6ce1\u9636\u6bb5<\/strong>\u3002\u4e86\u89e3\u8fd9\u4e00\u6a21\u578b\u5bf9\u4e8e\u7f16\u5199\u8de8\u6d4f\u89c8\u5668\u7684\u3001\u53ef\u9760\u7684\u4e8b\u4ef6\u5904\u7406\u4ee3\u7801\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/p>\n

\u56db\u3001\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f<\/h3>\n<\/p>\n

\u6dfb\u52a0\u548c\u79fb\u9664<\/h4>\n<\/p>\n

\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u662f\u54cd\u5e94\u4e8b\u4ef6\u7684\u4ee3\u7801\u3002\u4f7f\u7528addEventListener<\/code>\u548cremoveEventListener<\/code>\u65b9\u6cd5\u53ef\u4ee5\u7075\u6d3b\u5730\u5728\u5143\u7d20\u4e0a\u6dfb\u52a0\u6216\u79fb\u9664\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u3002\u8fd9\u6837\u4e0d\u4ec5\u4ee3\u7801\u66f4\u52a0\u6a21\u5757\u5316\uff0c\u4e5f\u65b9\u4fbf\u7ba1\u7406\u3002<\/p>\n<\/p>\n

\u533f\u540d\u51fd\u6570\u4e0e\u547d\u540d\u51fd\u6570<\/h4>\n<\/p>\n

\u5728\u7ed1\u5b9a\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u65f6\uff0c\u65e2\u53ef\u4ee5\u4f7f\u7528\u533f\u540d\u51fd\u6570\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u547d\u540d\u51fd\u6570\u3002\u533f\u540d\u51fd\u6570\u4f7f\u4ee3\u7801\u7b80\u6d01\uff0c\u4f46\u53ef\u80fd\u96be\u4ee5\u8c03\u8bd5\uff1b\u800c\u547d\u540d\u51fd\u6570\u4fbf\u4e8e\u91cd\u7528\u548c\u8c03\u8bd5\uff0c\u4f46\u53ef\u80fd\u589e\u52a0\u4ee3\u7801\u91cf\u3002\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9009\u62e9\u6700\u9002\u5408\u7684\u65b9\u5f0f\u3002<\/p>\n<\/p>\n

\u4e94\u3001\u4e8b\u4ef6\u59d4\u6258<\/h3>\n<\/p>\n

\u4e8b\u4ef6\u59d4\u6258<\/strong>\u662f\u4e00\u79cd\u9ad8\u6548\u5904\u7406\u4e8b\u4ef6\u7684\u6280\u672f\u3002\u901a\u8fc7\u5728\u7236\u5143\u7d20\u4e0a\u76d1\u542c\u4e8b\u4ef6\uff0c\u7136\u540e\u6839\u636e\u4e8b\u4ef6\u7684\u76ee\u6807\u5143\u7d20\u52a8\u6001\u51b3\u5b9a\u54cd\u5e94\u903b\u8f91\u3002\u8fd9\u79cd\u65b9\u6cd5\u51cf\u5c11\u4e86\u4e8b\u4ef6\u76d1\u542c\u5668\u7684\u6570\u91cf\uff0c\u63d0\u9ad8\u4e86\u7a0b\u5e8f\u7684\u6027\u80fd\uff0c\u5e76\u4f7f\u5f97\u52a8\u6001\u6dfb\u52a0\u6216\u5220\u9664\u5b50\u5143\u7d20\u65f6\u65e0\u9700\u5355\u72ec\u7ed1\u5b9a\u4e8b\u4ef6\u3002<\/p>\n<\/p>\n

\u516d\u3001\u9632\u6b62\u9ed8\u8ba4\u884c\u4e3a\u4e0e\u4e8b\u4ef6\u4f20\u64ad<\/h3>\n<\/p>\n

\u9ed8\u8ba4\u884c\u4e3a<\/h4>\n<\/p>\n

\u67d0\u4e9b\u4e8b\u4ef6\u4f1a\u89e6\u53d1\u6d4f\u89c8\u5668\u7684\u9ed8\u8ba4\u884c\u4e3a\uff0c\u4f8b\u5982\u70b9\u51fb\u94fe\u63a5\u4f1a\u6253\u5f00\u65b0\u9875\u9762\u3002\u4f7f\u7528event.preventDefault()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u963b\u6b62\u8fd9\u4e9b\u9ed8\u8ba4\u884c\u4e3a\uff0c\u4f7f\u5f97\u5f00\u53d1\u8005\u53ef\u4ee5\u5b9a\u4e49\u81ea\u5df1\u7684\u54cd\u5e94\u903b\u8f91\u3002<\/p>\n<\/p>\n

\u4e8b\u4ef6\u4f20\u64ad<\/h4>\n<\/p>\n

\u6709\u65f6\u5019\uff0c\u963b\u6b62\u4e8b\u4ef6\u5728DOM\u6811\u4e2d\u7684\u8fdb\u4e00\u6b65\u4f20\u64ad\u662f\u5fc5\u8981\u7684\u3002event.stopPropagation()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u5b83\u963b\u6b62\u4e86\u4e8b\u4ef6\u7684\u8fdb\u4e00\u6b65\u5192\u6ce1\u6216\u6355\u83b7\uff0c\u4f46\u4e0d\u4f1a\u5f71\u54cd\u5f53\u524d\u5143\u7d20\u7684\u5176\u4ed6\u4e8b\u4ef6\u76d1\u542c\u5668\u7684\u6267\u884c\u3002<\/p>\n<\/p>\n

\u901a\u8fc7\u6df1\u5165\u4e86\u89e3JavaScript\u4e8b\u4ef6\u7684\u7279\u6027\u548c\u64cd\u4f5c\u65b9\u6cd5\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u7f16\u5199\u51fa\u66f4\u52a0\u4e92\u52a8\u6027\u5f3a\u3001\u7528\u6237\u4f53\u9a8c\u4f73\u7684Web\u5e94\u7528\u3002\u638c\u63e1\u8fd9\u4e9b\u77e5\u8bc6\uff0c\u5bf9\u4e8e\u4efb\u4f55\u5e0c\u671b\u63d0\u5347\u81ea\u5df1\u524d\u7aef\u5f00\u53d1\u6280\u80fd\u7684\u4eba\u6765\u8bf4\uff0c\u90fd\u662f\u975e\u5e38\u6709\u4ef7\u503c\u7684\u3002<\/p>\n<\/p>\n

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

1. \u4ec0\u4e48\u662fJavaScript\u4e8b\u4ef6\uff1f<\/strong>
\nJavaScript\u4e8b\u4ef6\u662f\u5728\u7279\u5b9a\u6761\u4ef6\u4e0b\u53d1\u751f\u7684\u52a8\u4f5c\u6216\u64cd\u4f5c\uff0c\u4f8b\u5982\u7528\u6237\u70b9\u51fb\u6309\u94ae\u3001\u8f93\u5165\u6587\u672c\u3001\u6eda\u52a8\u9875\u9762\u7b49\u3002\u901a\u8fc7\u4f7f\u7528JavaScript\u7f16\u5199\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5bf9\u8fd9\u4e9b\u4e8b\u4ef6\u4f5c\u51fa\u54cd\u5e94\uff0c\u6539\u53d8\u9875\u9762\u5185\u5bb9\u6216\u6267\u884c\u5176\u4ed6\u64cd\u4f5c\u3002<\/p>\n

2. \u5982\u4f55\u5728\u7f51\u9875\u4e2d\u6dfb\u52a0JavaScript\u4e8b\u4ef6\uff1f<\/strong>
\n\u8981\u5728\u7f51\u9875\u4e2d\u6dfb\u52a0JavaScript\u4e8b\u4ef6\uff0c\u9700\u8981\u5728\u7279\u5b9a\u7684HTML\u5143\u7d20\u4e0a\u7ed1\u5b9a\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u3002\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528addEventListener()\u65b9\u6cd5\u6216\u76f4\u63a5\u5728HTML\u5143\u7d20\u7684\u5c5e\u6027\u4e2d\u6307\u5b9a\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u6765\u5b8c\u6210\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7addEventListener()\u65b9\u6cd5\u5c06\u4e00\u4e2a\u70b9\u51fb\u4e8b\u4ef6\u7ed1\u5b9a\u5230\u6309\u94ae\u4e0a\uff0c\u5f53\u7528\u6237\u70b9\u51fb\u6309\u94ae\u65f6\uff0c\u76f8\u5e94\u7684\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u5c06\u88ab\u8c03\u7528\u3002<\/p>\n

3. JavaScript\u4e8b\u4ef6\u7684\u5e38\u89c1\u5e94\u7528\u573a\u666f\u6709\u54ea\u4e9b\uff1f<\/strong>
\nJavaScript\u4e8b\u4ef6\u53ef\u7528\u4e8e\u5b9e\u73b0\u591a\u79cd\u529f\u80fd\u548c\u4ea4\u4e92\u4f53\u9a8c\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u9f20\u6807\u4e8b\u4ef6\u76d1\u542c\u7528\u6237\u7684\u9f20\u6807\u884c\u4e3a\uff0c\u4ece\u800c\u5b9e\u73b0\u62d6\u62fd\u3001\u70b9\u51fb\u6548\u679c\u7b49\u3002\u952e\u76d8\u4e8b\u4ef6\u53ef\u4ee5\u7528\u4e8e\u6355\u6349\u7528\u6237\u5728\u952e\u76d8\u4e0a\u7684\u6309\u952e\u64cd\u4f5c\uff0c\u5b9e\u73b0\u5feb\u6377\u952e\u6216\u8868\u5355\u9a8c\u8bc1\u3002\u8fd8\u53ef\u4ee5\u4f7f\u7528\u7a97\u53e3\u4e8b\u4ef6\u76d1\u542c\u6d4f\u89c8\u5668\u7a97\u53e3\u7684\u5927\u5c0f\u6539\u53d8\u3001\u9875\u9762\u52a0\u8f7d\u5b8c\u6210\u7b49\u72b6\u6001\uff0c\u4ee5\u4fbf\u505a\u51fa\u76f8\u5e94\u7684\u5904\u7406\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u8fd8\u6709\u8bb8\u591a\u5176\u4ed6\u7c7b\u578b\u7684\u4e8b\u4ef6\u53ef\u7528\u4e8e\u5b9e\u73b0\u66f4\u4e30\u5bcc\u7684\u4ea4\u4e92\u6548\u679c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u8003\u8651\u5230\u63d0\u51fa\u7684\u8981\u6c42\uff0c\u5c3d\u7ba1\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u7f16\u5199\u4e00\u4e2a\u8be6\u5c3d\u7684\u6587\u7ae0\u662f\u5fc5\u9700\u7684\uff0c\u4f46\u5728\u8fd9\u4e2a\u56de\u7b54\u4e2d\uff0c\u6211\u4f1a\u7cbe\u7b80\u5185\u5bb9\u4ee5\u4fbf\u4e8e\u5728\u8fd9\u4e2a\u683c\u5f0f\u4e2d\u5448 […]","protected":false},"author":3,"featured_media":169146,"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\/169139"}],"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=169139"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/169139\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/169146"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=169139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=169139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=169139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}