{"id":255533,"date":"2024-05-15T11:20:29","date_gmt":"2024-05-15T03:20:29","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/255533.html"},"modified":"2024-05-15T11:20:35","modified_gmt":"2024-05-15T03:20:35","slug":"jquery-%e4%bb%a3%e7%a0%81%e5%a6%82%e4%bd%95%e9%98%bb%e6%ad%a2%e9%bb%98%e8%ae%a4%e4%ba%8b%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/255533.html","title":{"rendered":"jQuery \u4ee3\u7801\u5982\u4f55\u963b\u6b62\u9ed8\u8ba4\u4e8b\u4ef6"},"content":{"rendered":"

\"jQuery<\/p>\n

jQuery \u4e2d\u963b\u6b62\u9ed8\u8ba4\u4e8b\u4ef6\u7684\u65b9\u6cd5\u6709\u4e09\u79cd\uff0c\u5206\u522b\u662f\u4f7f\u7528 preventDefault()<\/code> \u65b9\u6cd5\u3001\u4f7f\u7528 return false<\/code>\u3001\u4f7f\u7528 event.stopImmediatePropagation()<\/code> \u65b9\u6cd5<\/strong>\u3002\u8fd9\u4e9b\u65b9\u6cd5\u80fd\u6709\u6548\u963b\u6b62\u6d4f\u89c8\u5668\u9ed8\u8ba4\u6267\u884c\u7684\u4e8b\u4ef6\u884c\u4e3a\uff0c\u6bd4\u5982\u94fe\u63a5\u7684\u8df3\u8f6c\u3001\u8868\u5355\u7684\u63d0\u4ea4\u7b49\u3002\u5176\u4e2d\uff0cpreventDefault()<\/code> \u65b9\u6cd5\u662f\u6700\u5e38\u7528\u7684\u4e00\u79cd\u65b9\u5f0f<\/strong>\u3002\u8fd9\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u76f4\u63a5\u5e94\u7528\u4e8e\u4e8b\u4ef6\u5bf9\u8c61\u4e0a\uff0c\u963b\u6b62\u6d4f\u89c8\u5668\u9ed8\u8ba4\u884c\u4e3a\u7684\u53d1\u751f\uff0c\u800c\u4e0d\u4f1a\u505c\u6b62\u4e8b\u4ef6\u5728DOM\u6811\u4e2d\u7684\u4f20\u64ad\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528 PREVENTDEFAULT()<\/code> \u65b9\u6cd5<\/h3>\n<\/p>\n

preventDefault()<\/code> \u65b9\u6cd5\u662f\u5728\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u4e2d\u963b\u6b62\u9ed8\u8ba4\u6d4f\u89c8\u5668\u884c\u4e3a\u7684\u4e00\u4e2a\u6807\u51c6\u65b9\u6cd5\u3002\u5b83\u53ef\u4ee5\u9002\u7528\u4e8e\u5927\u591a\u6570\u7684\u6d4f\u89c8\u5668\u4e8b\u4ef6\uff0c\u5982\u70b9\u51fb\u3001\u63d0\u4ea4\u7b49\u3002\u4f7f\u7528\u8fd9\u4e2a\u65b9\u6cd5\u7684\u4e00\u4e2a\u597d\u5904\u662f\u4f60\u53ef\u4ee5\u5728\u4e8b\u4ef6\u5904\u7406\u4e2d\u8fdb\u884c\u6761\u4ef6\u5224\u65ad\uff0c\u53ea\u5728\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u65f6\u963b\u6b62\u9ed8\u8ba4\u884c\u4e3a\u3002<\/p>\n<\/p>\n

\u9996\u5148\uff0c\u4f60\u9700\u8981\u4e3a\u76ee\u6807\u5143\u7d20\u7ed1\u5b9a\u4e8b\u4ef6\u76d1\u542c\u5668\u3002\u5f53\u4e8b\u4ef6\u89e6\u53d1\u65f6\uff0c\u4e8b\u4ef6\u5bf9\u8c61\u4f1a\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u56de\u8c03\u51fd\u6570\u3002\u7136\u540e\uff0c\u901a\u8fc7\u8c03\u7528\u4e8b\u4ef6\u5bf9\u8c61\u7684 preventDefault()<\/code> \u65b9\u6cd5\uff0c\u53ef\u4ee5\u963b\u6b62\u4e8b\u4ef6\u7684\u9ed8\u8ba4\u884c\u4e3a\u3002<\/p>\n<\/p>\n

\u4f8b\u5982\uff0c\u5f53\u5e0c\u671b\u963b\u6b62\u94fe\u63a5\u8df3\u8f6c\u65f6\uff1a<\/p>\n<\/p>\n

$('a').click(function(event) {<\/p>\n
  event.preventDefault();<\/p>\n
  \/\/ \u5176\u4ed6\u5904\u7406\u4ee3\u7801...<\/p>\n
});<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u6bb5\u4ee3\u7801\u4f1a\u963b\u6b62\u9875\u9762\u4e2d\u6240\u6709\u94fe\u63a5\u7684\u9ed8\u8ba4\u8df3\u8f6c\u884c\u4e3a\uff0c\u5141\u8bb8\u4f60\u6267\u884c\u5176\u4ed6\u7684\u903b\u8f91\u5904\u7406\uff0c\u6bd4\u5982\u52a8\u6001\u52a0\u8f7d\u5185\u5bb9\u7b49\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528 RETURN FALSE<\/code><\/h3>\n<\/p>\n
\u5728jQuery\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u4e2d\u8fd4\u56de false<\/code> \u4e5f\u53ef\u4ee5\u540c\u65f6\u963b\u6b62\u9ed8\u8ba4\u884c\u4e3a\u548c\u4e8b\u4ef6\u5192\u6ce1\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u6d01\u800c\u6709\u6548\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\u5b83\u4f1a\u540c\u65f6\u505c\u6b62\u4e8b\u4ef6\u7684\u8fdb\u4e00\u6b65\u4f20\u64ad\uff0c\u56e0\u6b64\u53ef\u80fd\u4f1a\u5f71\u54cd\u5230\u5176\u4ed6\u540c\u7c7b\u578b\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u7684\u6267\u884c\u3002<\/p>\n<\/p>\n
\u8fd9\u4e2a\u65b9\u6cd5\u5c24\u5176\u9002\u7528\u4e8e\u9700\u8981\u7b80\u5316\u4ee3\u7801\u4e14\u4e0d\u9700\u8981\u4e8b\u4ef6\u4f20\u64ad\u7684\u573a\u666f\u3002\u4f8b\u5982\uff0c\u963b\u6b62\u63d0\u4ea4\u6309\u94ae\u7684\u9ed8\u8ba4\u884c\u4e3a\u5e76\u9a8c\u8bc1\u8868\u5355\uff1a<\/p>\n<\/p>\n
$('form').submit(function() {<\/p>\n
  \/\/ \u8868\u5355\u9a8c\u8bc1\u4ee3\u7801...<\/p>\n
  return false; \/\/ \u963b\u6b62\u8868\u5355\u7684\u63d0\u4ea4<\/p>\n
});<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd4\u56de false<\/code>\uff0c\u65e2\u963b\u6b62\u4e86\u8868\u5355\u7684\u63d0\u4ea4\uff0c\u4e5f\u907f\u514d\u4e86\u989d\u5916\u7684\u4e8b\u4ef6\u5904\u7406\u903b\u8f91\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528 EVENT.STOPIMMEDIATEPROPAGATION()<\/code> \u65b9\u6cd5<\/h3>\n<\/p>\n
\u867d\u7136\u8fd9\u4e2a\u65b9\u6cd5\u4e3b\u8981\u662f\u7528\u6765\u505c\u6b62\u4e8b\u4ef6\u5192\u6ce1\u7684\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u4ee5\u7528\u6765\u963b\u6b62\u4e8b\u4ef6\u7684\u9ed8\u8ba4\u884c\u4e3a\uff0c\u5c24\u5176\u662f\u5728\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u7684\u6267\u884c\u987a\u5e8f\u5bf9\u7ed3\u679c\u6709\u5f71\u54cd\u7684\u65f6\u5019\u3002event.stopImmediatePropagation()<\/code> \u65b9\u6cd5\u4e0d\u4ec5\u4f1a\u963b\u6b62\u4e8b\u4ef6\u8fdb\u4e00\u6b65\u4f20\u64ad\uff0c\u8fd8\u4f1a\u963b\u6b62\u540c\u4e00\u4e2a\u4e8b\u4ef6\u7684\u5176\u4ed6\u76d1\u542c\u5668\u88ab\u8c03\u7528\u3002<\/p>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u76f8\u5bf9\u8f83\u5c11\u4f7f\u7528\uff0c\u56e0\u4e3a\u5b83\u4f1a\u5bf9\u4e8b\u4ef6\u76d1\u542c\u5668\u7684\u6b63\u5e38\u5de5\u4f5c\u9020\u6210\u8f83\u5927\u5f71\u54cd\u3002\u7136\u800c\uff0c\u5728\u9700\u8981\u786e\u4fdd\u67d0\u4e2a\u4e8b\u4ef6\u76d1\u542c\u5668\u5728\u540c\u7c7b\u4e8b\u4ef6\u4e2d\u6700\u5148\u6267\u884c\u5e76\u963b\u6b62\u5176\u4ed6\u76d1\u542c\u5668\u6267\u884c\u65f6\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
$('#element').click(function(event) {<\/p>\n
  event.stopImmediatePropagation();<\/p>\n
  \/\/ \u5904\u7406\u4ee3\u7801...<\/p>\n
});<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u5c06\u786e\u4fdd\u5f53\u524d\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u662f\u552f\u4e00\u88ab\u6267\u884c\u7684\uff0c\u963b\u6b62\u4e86\u5176\u4ed6\u76d1\u542c\u5668\u7684\u6267\u884c\u548c\u9ed8\u8ba4\u4e8b\u4ef6\u7684\u53d1\u751f\u3002<\/p>\n<\/p>\n
\u7ed3\u8bed<\/h3>\n<\/p>\n
\u963b\u6b62\u9ed8\u8ba4\u4e8b\u4ef6\u662fJavaScript\u548cjQuery\u7f16\u7a0b\u4e2d\u7684\u4e00\u4e2a\u5e38\u89c1\u9700\u6c42\u3002\u6839\u636e\u5177\u4f53\u7684\u573a\u666f\u548c\u9700\u6c42\uff0c\u53ef\u4ee5\u9009\u62e9\u4e0a\u8ff0\u65b9\u6cd5\u4e2d\u7684\u4e00\u79cd\u6765\u5b9e\u73b0\u3002\u6700\u7ecf\u5178\u4e14\u5e7f\u6cdb\u4f7f\u7528\u7684\u65b9\u6cd5\u662f\u901a\u8fc7 preventDefault()<\/code> \u65b9\u6cd5\uff0c\u4f46\u5728\u67d0\u4e9b\u7279\u5b9a\u60c5\u51b5\u4e0b\uff0c\u8fd4\u56de false<\/code> \u6216\u4f7f\u7528 event.stopImmediatePropagation()<\/code> \u4e5f\u662f\u5f88\u597d\u7684\u9009\u62e9\u3002\u4e86\u89e3\u5404\u65b9\u6cd5\u7684\u7279\u70b9\u53ca\u9002\u7528\u573a\u666f\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u9ad8\u6548\u5730\u7f16\u5199\u524d\u7aef\u4ee3\u7801\uff0c\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u4ea4\u4e92\u903b\u8f91\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
\u5982\u4f55\u4f7f\u7528jQuery\u963b\u6b62\u9ed8\u8ba4\u4e8b\u4ef6\uff1f<\/strong><\/p>\n
    \n
  1. \n
    \u4e3a\u4ec0\u4e48\u9700\u8981\u963b\u6b62\u9ed8\u8ba4\u4e8b\u4ef6\uff1f<\/strong>
    \n\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6d4f\u89c8\u5668\u4f1a\u5bf9\u67d0\u4e9b\u7279\u5b9a\u7684\u4e8b\u4ef6\uff08\u5982\u70b9\u51fb\u94fe\u63a5\u3001\u63d0\u4ea4\u8868\u5355\u7b49\uff09\u6267\u884c\u9ed8\u8ba4\u7684\u884c\u4e3a\u3002\u7136\u800c\uff0c\u6709\u65f6\u5019\u6211\u4eec\u5e0c\u671b\u901a\u8fc7JavaScript\u6765\u63a7\u5236\u4e8b\u4ef6\u7684\u884c\u4e3a\uff0c\u8fd9\u65f6\u5c31\u9700\u8981\u963b\u6b62\u9ed8\u8ba4\u4e8b\u4ef6\u3002<\/p>\n<\/li>\n
  2. \n
    \u5982\u4f55\u4f7f\u7528jQuery\u963b\u6b62\u9ed8\u8ba4\u4e8b\u4ef6\uff1f<\/strong>
    \n\u4f7f\u7528jQuery\u53ef\u4ee5\u5f88\u7b80\u5355\u5730\u963b\u6b62\u9ed8\u8ba4\u4e8b\u4ef6\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u65b9\u6cd5\uff1a<\/p>\n<\/li>\n<\/ol>\n
      \n
    • event.preventDefault()<\/code>: \u8c03\u7528\u6b64\u65b9\u6cd5\u53ef\u4ee5\u963b\u6b62\u4e8b\u4ef6\u7684\u9ed8\u8ba4\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7$('a').click(function(event) { event.preventDefault(); });<\/code>\u963b\u6b62\u70b9\u51fb\u94fe\u63a5\u7684\u9ed8\u8ba4\u8df3\u8f6c\u884c\u4e3a\u3002<\/li>\n
    • return false<\/code>: \u5728\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u4e2d\u4f7f\u7528return false<\/code>\u4e5f\u53ef\u4ee5\u963b\u6b62\u9ed8\u8ba4\u4e8b\u4ef6\u3002\u8fd9\u79cd\u65b9\u6cd5\u76f8\u5f53\u4e8e\u540c\u65f6\u8c03\u7528\u4e86event.preventDefault()<\/code>\u548cevent.stopPropagation()<\/code>\uff0c\u963b\u6b62\u4e86\u4e8b\u4ef6\u7684\u9ed8\u8ba4\u884c\u4e3a\u548c\u4e8b\u4ef6\u7684\u5192\u6ce1\u3002<\/li>\n<\/ul>\n
        \n
      1. \u54ea\u4e9b\u4e8b\u4ef6\u9700\u8981\u963b\u6b62\u9ed8\u8ba4\u884c\u4e3a\uff1f<\/strong>
        \n\u5b9e\u9645\u4e0a\uff0c\u6211\u4eec\u53ef\u4ee5\u7528jQuery\u6765\u963b\u6b62\u4efb\u4f55\u9700\u8981\u963b\u6b62\u9ed8\u8ba4\u884c\u4e3a\u7684\u4e8b\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u9700\u8981\u963b\u6b62\u9ed8\u8ba4\u884c\u4e3a\u7684\u4e8b\u4ef6\uff1a<\/li>\n<\/ol>\n
          \n
        • \u70b9\u51fb\u94fe\u63a5\u65f6\uff0c\u5982\u679c\u4f60\u5e0c\u671b\u94fe\u63a5\u4ec5\u6267\u884c\u67d0\u4e9b\u81ea\u5b9a\u4e49\u7684\u64cd\u4f5c\u800c\u4e0d\u662f\u8df3\u8f6c\u5230\u65b0\u9875\u9762\u3002<\/li>\n
        • \u63d0\u4ea4\u8868\u5355\u65f6\uff0c\u5982\u679c\u4f60\u5e0c\u671b\u901a\u8fc7AJAX\u65b9\u5f0f\u63d0\u4ea4\u8868\u5355\u800c\u4e0d\u662f\u5237\u65b0\u6574\u4e2a\u9875\u9762\u3002<\/li>\n
        • \u62d6\u62fd\u5143\u7d20\u65f6\uff0c\u5982\u679c\u4f60\u5e0c\u671b\u62d6\u62fd\u64cd\u4f5c\u53ea\u662f\u89e6\u53d1\u67d0\u4e9b\u7279\u5b9a\u7684\u4ea4\u4e92\u6548\u679c\u800c\u4e0d\u662f\u6d4f\u89c8\u5668\u81ea\u5e26\u7684\u62d6\u62fd\u884c\u4e3a\u3002<\/li>\n<\/ul>\n
          \u5e0c\u671b\u4ee5\u4e0a\u4fe1\u606f\u80fd\u5e2e\u52a9\u4f60\u4e86\u89e3\u5982\u4f55\u4f7f\u7528jQuery\u963b\u6b62\u9ed8\u8ba4\u4e8b\u4ef6\u3002\u5982\u679c\u4f60\u8fd8\u6709\u5176\u4ed6\u95ee\u9898\uff0c\u8bf7\u968f\u65f6\u63d0\u95ee\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"jQuery \u4e2d\u963b\u6b62\u9ed8\u8ba4\u4e8b\u4ef6\u7684\u65b9\u6cd5\u6709\u4e09\u79cd\uff0c\u5206\u522b\u662f\u4f7f\u7528 preventDefault() \u65b9\u6cd5\u3001\u4f7f\u7528 retur […]","protected":false},"author":3,"featured_media":255542,"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\/255533"}],"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=255533"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/255533\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/255542"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=255533"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=255533"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=255533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}