{"id":1527,"date":"2024-11-10T13:42:11","date_gmt":"2024-11-10T05:42:11","guid":{"rendered":"https:\/\/fwq.ai\/blog\/1527\/"},"modified":"2024-11-10T13:42:11","modified_gmt":"2024-11-10T05:42:11","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e9%80%92%e5%bd%92%e9%81%8d%e5%8e%86-dom-%e5%85%83%e7%b4%a0%e5%8f%8a%e5%85%b6%e6%89%80%e6%9c%89%e5%ad%90%e5%85%83%e7%b4%a0%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/1527\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528\u9012\u5f52\u904d\u5386 DOM \u5143\u7d20\u53ca\u5176\u6240\u6709\u5b50\u5143\u7d20\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173045736324784.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u4f7f\u7528\u9012\u5f52\u904d\u5386 DOM \u5143\u7d20\u53ca\u5176\u6240\u6709\u5b50\u5143\u7d20\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u4f7f\u7528\u9012\u5f52\u904d\u5386 DOM \u5143\u7d20\u53ca\u5176\u6240\u6709\u5b50\u5143\u7d20\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u6df1\u5ea6\u904d\u5386 dom \u5143\u7d20<\/strong><\/p>\n<p>\u5728 javascript \u9762\u8bd5\u4e2d\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230\u9700\u8981\u904d\u5386 dom \u5143\u7d20\u53ca\u5176\u5b50\u5143\u7d20\u7684\u4efb\u52a1\u3002\u8fd9\u6d89\u53ca\u5230\u6839\u636e\u67d0\u4e9b\u6761\u4ef6\u83b7\u53d6\u548c\u5904\u7406\u6240\u6709\u5143\u7d20\u3002<\/p>\n<p>\u5047\u8bbe\u4f60\u6536\u5230\u4e00\u4e2a dom \u5143\u7d20 d_elem\uff0c\u8981\u6c42\u904d\u5386\u5176\u6240\u6709\u5b50\u5143\u7d20\uff0c\u5305\u62ec\u4e0d\u540c\u5c42\u6b21\u7684\u5b50\u5143\u7d20\u3002\u8981\u5b9e\u73b0\u8fd9\u4e2a\u4efb\u52a1\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u79cd\u79f0\u4e3a\u9012\u5f52\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u4ee5\u4e0b javascript \u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u9012\u5f52\u904d\u5386 dom \u5143\u7d20\uff1a<\/p>\n<pre>function recursive(el, callback) {\n    if (!el.childNodes) return;\n    for (var elIndex in el.childNodes) {\n        recursive(el.childNodes[elIndex], callback);\n        callback(el.childNodes[elIndex]);\n    }\n}\n\nrecursive(document.body, function(el){console.log(el)})<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd9\u4e2a\u9012\u5f52\u51fd\u6570 recursive \u9010\u7ea7\u904d\u5386 el \u7684\u6240\u6709\u5b50\u5143\u7d20\uff0c\u5e76\u4f7f\u7528\u63d0\u4f9b\u7684\u56de\u8c03\u51fd\u6570 callback \u5bf9\u6bcf\u4e2a\u5b50\u5143\u7d20\u6267\u884c\u64cd\u4f5c\u3002\u5728\u672c\u4f8b\u4e2d\uff0c\u56de\u8c03\u51fd\u6570\u7528\u4e8e\u5728\u63a7\u5236\u53f0\u4e2d\u8bb0\u5f55\u5b50\u5143\u7d20\u3002\u8c03\u7528 recursive(document.body, function(el){console.log(el)}) \u5c06\u904d\u5386\u6574\u4e2a\u6587\u6863\u4e3b\u4f53\u7684\u5185\u5bb9\u5e76\u8f93\u51fa\u5176\u6240\u6709\u5b50\u5143\u7d20\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528\u9012\u5f52\u904d\u5386 DOM \u5143\u7d20\u53ca\u5176\u6240\u6709\u5b50\u5143\u7d20\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5ea6\u904d\u5386 dom \u5143\u7d20 \u5728 javascript \u9762\u8bd5\u4e2d\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230\u9700\u8981\u904d\u5386 dom \u5143\u7d20\u53ca\u5176\u5b50\u5143\u7d20\u7684\u4efb\u52a1\u3002\u8fd9\u6d89\u53ca\u5230\u6839\u636e\u67d0\u4e9b\u6761\u4ef6\u83b7\u53d6\u548c\u5904\u7406\u6240\u6709\u5143\u7d20\u3002 \u5047\u8bbe\u4f60\u6536\u5230\u4e00\u4e2a dom \u5143\u7d20 d_elem\uff0c\u8981\u6c42\u904d\u5386\u5176\u6240\u6709\u5b50\u5143\u7d20\uff0c\u5305\u62ec\u4e0d\u540c\u5c42\u6b21\u7684\u5b50\u5143\u7d20\u3002\u8981\u5b9e\u73b0\u8fd9\u4e2a\u4efb\u52a1\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u79cd\u79f0\u4e3a\u9012\u5f52\u7684\u65b9\u6cd5\u3002 \u4ee5\u4e0b javascript \u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u9012\u5f52\u904d\u5386 dom \u5143\u7d20\uff1a function recursive(el, callback) { if (!el.childNodes) return; for (var elIndex in el.childNodes) { recursive(el.childNodes[elIndex], callback); callback(el.childNodes[elIndex]); } } recursive(document.body, function(el){console.log(el)}) \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u4e2a\u9012\u5f52\u51fd\u6570 recursive \u9010\u7ea7\u904d\u5386 el \u7684\u6240\u6709\u5b50\u5143\u7d20\uff0c\u5e76\u4f7f\u7528\u63d0\u4f9b\u7684\u56de\u8c03\u51fd\u6570 callback \u5bf9\u6bcf\u4e2a\u5b50\u5143\u7d20\u6267\u884c\u64cd\u4f5c\u3002\u5728\u672c\u4f8b\u4e2d\uff0c\u56de\u8c03\u51fd\u6570\u7528\u4e8e\u5728\u63a7\u5236\u53f0\u4e2d\u8bb0\u5f55\u5b50\u5143\u7d20\u3002\u8c03\u7528 recursive(document.body, function(el){console.log(el)}) \u5c06\u904d\u5386\u6574\u4e2a\u6587\u6863\u4e3b\u4f53\u7684\u5185\u5bb9\u5e76\u8f93\u51fa\u5176\u6240\u6709\u5b50\u5143\u7d20\u3002 \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528\u9012\u5f52\u904d\u5386 DOM \u5143\u7d20\u53ca\u5176\u6240\u6709\u5b50\u5143\u7d20\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-1527","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=1527"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1527\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=1527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=1527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=1527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}