{"id":168790,"date":"2024-05-08T16:31:49","date_gmt":"2024-05-08T08:31:49","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/168790.html"},"modified":"2024-05-08T16:31:56","modified_gmt":"2024-05-08T08:31:56","slug":"javascript-%e9%a1%b9%e7%9b%ae%e6%80%8e%e4%b9%88%e8%8e%b7%e5%8f%96-body-%e5%86%85%e5%ae%b9","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/168790.html","title":{"rendered":"Javascript \u9879\u76ee\u600e\u4e48\u83b7\u53d6 body \u5185\u5bb9"},"content":{"rendered":"

\"Javascript<\/p>\n

\u83b7\u53d6JavaScript\u9879\u76ee\u4e2d\u7684body<\/code>\u5185\u5bb9\u901a\u5e38\u6d89\u53ca\u5230\u7f16\u7a0b\u4e2d\u7684DOM\u64cd\u4f5c\uff0c\u5373\u6587\u6863\u5bf9\u8c61\u6a21\u578b\u64cd\u4f5c\u3002\u901a\u8fc7JavaScript\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u8bbf\u95ee\u548c\u64cd\u4f5c\u7f51\u9875\u7684body\u5185\u5bb9<\/strong>\u3002\u4e00\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f\u7528document.body<\/code>\u5c5e\u6027\uff0c\u8be5\u5c5e\u6027\u8fd4\u56de\u5f53\u524d\u6587\u6863\u7684<body><\/code>\u6216<frameset><\/code>\u8282\u70b9\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528document.getElementsByTagName<\/code>\u6216document.querySelector<\/code>\u7b49\u65b9\u6cd5\u6765\u8fdb\u884c\u66f4\u7ec6\u81f4\u7684\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u83b7\u53d6body<\/code>\u5185\u5bb9\u7684\u51e0\u4e2a\u6838\u5fc3\u65b9\u6cd5\uff1a\u4f7f\u7528document.body<\/code>\u5c5e\u6027\u76f4\u63a5\u83b7\u53d6\u3001\u4f7f\u7528innerHTML<\/code>\u5c5e\u6027\u83b7\u53d6body\u6240\u6709HTML\u5185\u5bb9\u3001\u4f7f\u7528DOM\u64cd\u4f5c\u904d\u5386body\u5185\u7684\u5404\u4e2a\u8282\u70b9<\/strong>\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528document.body<\/code>\u83b7\u53d6Body<\/h3>\n<\/p>\n

JavaScript \u63d0\u4f9b\u4e86\u4e00\u4e2a\u76f4\u63a5\u8bbf\u95eebody<\/code>\u7684\u5c5e\u6027\uff0c\u5373document.body<\/code>\u3002\u901a\u8fc7\u5b83\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u83b7\u53d6\u5230<body><\/code>\u6807\u7b7e\u7684\u6240\u6709\u5185\u5bb9\u3002<\/p>\n<\/p>\n

var bodyContent = document.body;<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u76f4\u63a5\u62ff\u5230\u7684\u662f\u4e00\u4e2a\u5143\u7d20\u8282\u70b9\uff0c\u5305\u542b\u4e86body<\/code>\u5143\u7d20\u7684\u6240\u6709\u5b50\u8282\u70b9\u3002\u6211\u4eec\u53ef\u4ee5\u8fdb\u4e00\u6b65\u64cd\u4f5c\u8fd9\u4e2a\u5143\u7d20\u8282\u70b9\uff0c\u6bd4\u5982\u6539\u53d8\u5b83\u7684\u6837\u5f0f\uff0c\u589e\u52a0\u6216\u5220\u9664\u5b50\u8282\u70b9\u7b49\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u83b7\u53d6Body\u7684InnerHTML<\/h3>\n<\/p>\n
\u5982\u679c\u6211\u4eec\u60f3\u83b7\u53d6body<\/code>\u91cc\u9762\u7684\u6574\u4e2aHTML\u7ed3\u6784\uff0c\u53ef\u4ee5\u4f7f\u7528innerHTML<\/code>\u5c5e\u6027\u3002\u8fd9\u5c06\u8fd4\u56debody<\/code>\u6807\u7b7e\u5185\u90e8\u7684\u6240\u6709HTML\u4ee3\u7801\u3002<\/p>\n<\/p>\n
var bodyInnerHTML = document.body.innerHTML;<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u83b7\u53d6innerHTML<\/code>\uff0c\u6211\u4eec\u5f97\u5230\u7684\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5b83\u5305\u542b\u4e86body<\/code>\u5185\u90e8\u7684\u6240\u6709HTML\u6807\u7b7e\u548c\u5185\u5bb9\u3002\u8fd9\u6837\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5\u6765\u67e5\u8be2\u6216\u4fee\u6539\u8fd9\u90e8\u5206\u5185\u5bb9\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u904d\u5386Body\u5185\u7684\u5404\u4e2a\u8282\u70b9<\/h3>\n<\/p>\n
\u5bf9\u4e8e\u90a3\u4e9b\u9700\u8981\u5bf9body<\/code>\u5185\u5bb9\u8fdb\u884c\u66f4\u7ec6\u7c92\u5ea6\u64cd\u4f5c\u7684\u60c5\u51b5\uff0c\u53ef\u4ee5\u901a\u8fc7\u904d\u5386\u6240\u6709\u5b50\u8282\u70b9\u7684\u65b9\u5f0f\u6765\u8fdb\u884c\u3002<\/p>\n<\/p>\n
var currentNode = document.body.firstChild;<\/p>\n
while(currentNode) {<\/p>\n
    \/\/ \u5bf9 currentNode \u8fdb\u884c\u64cd\u4f5c<\/p>\n
    currentNode = currentNode.nextSibling;<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u5141\u8bb8\u6211\u4eec\u8bbf\u95ee\u5230body<\/code>\u5185\u90e8\u7684\u6bcf\u4e00\u4e2a\u8282\u70b9\uff0c\u4ece\u800c\u8fdb\u884c\u4fee\u6539\u3001\u6dfb\u52a0\u3001\u5220\u9664\u7b49\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u56db\u3001\u4f7f\u7528\u9009\u62e9\u5668\u83b7\u53d6\u7279\u5b9a\u5185\u5bb9<\/h3>\n<\/p>\n
\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528document.querySelector<\/code>\u6216document.querySelectorAll<\/code>\u6765\u83b7\u53d6body<\/code>\u4e2d\u7279\u5b9a\u7684\u5143\u7d20\u6216\u5143\u7d20\u96c6\u5408\u3002<\/p>\n<\/p>\n
var specificElement = document.querySelector('.specific-class');<\/p>\n
var allSpecificElements = document.querySelectorAll('.specific-class');<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u4e9b\u65b9\u6cd5\u901a\u8fc7CSS\u9009\u62e9\u5668\u6765\u5b9a\u4f4d\u5143\u7d20\uff0cquerySelector<\/code>\u8fd4\u56de\u6587\u6863\u4e2d\u5339\u914d\u6307\u5b9a\u9009\u62e9\u5668\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u800cquerySelectorAll<\/code>\u8fd4\u56de\u6240\u6709\u5339\u914d\u7684\u5143\u7d20\u8282\u70b9\u5217\u8868\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u54cd\u5e94\u7528\u6237\u7684\u4ea4\u4e92\u4e8b\u4ef6<\/h3>\n<\/p>\n
\u5f88\u591a\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u5728\u7528\u6237\u4e0ebody<\/code>\u5185\u7684\u67d0\u4e9b\u5143\u7d20\u4ea4\u4e92\u65f6\uff0c\u6355\u83b7\u5e76\u5904\u7406\u5185\u5bb9\u3002\u4f7f\u7528\u4e8b\u4ef6\u76d1\u542c\u5668\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u4e2a\u76ee\u7684\u3002<\/p>\n<\/p>\n
document.body.addEventListener('click', function(event) {<\/p>\n
    \/\/ \u5904\u7406\u70b9\u51fb\u4e8b\u4ef6<\/p>\n
});<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u76d1\u542c\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u7528\u6237\u70b9\u51fbbody<\/code>\u5185\u4efb\u4f55\u533a\u57df\u65f6\uff0c\u83b7\u53d6\u5230\u70b9\u51fb\u7684\u76ee\u6807\u5143\u7d20\uff0c\u53ca\u5176\u5185\u90e8\u7684\u5185\u5bb9\u3002<\/p>\n<\/p>\n
\u516d\u3001\u4fee\u6539Body\u5185\u5bb9<\/h3>\n<\/p>\n
\u83b7\u53d6\u5230body<\/code>\u5185\u5bb9\u4e4b\u540e\uff0c\u6211\u4eec\u53ef\u80fd\u8fd8\u9700\u8981\u5bf9\u5176\u8fdb\u884c\u4fee\u6539\u3002\u4ee5\u4e0b\u4e24\u79cd\u65b9\u5f0f\u5e38\u7528\u4e8e\u4fee\u6539body<\/code>\u5185\u5bb9\u3002<\/p>\n<\/p>\n
\/\/ \u76f4\u63a5\u66ff\u6362\u6574\u4e2abody\u7684HTML\u5185\u5bb9<\/p>\n
document.body.innerHTML = "<h1>\u65b0\u7684\u5185\u5bb9<\/h1>";<\/p>\n
\/\/ \u521b\u5efa\u65b0\u8282\u70b9\u5e76\u6dfb\u52a0\u5230body<\/p>\n
var newElement = document.createElement('div');<\/p>\n
newElement.innerHTML = "\u66f4\u591a\u5185\u5bb9";<\/p>\n
document.body.appendChild(newElement);<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528innerHTML<\/code>\u53ef\u4ee5\u76f4\u63a5\u66ff\u6362body<\/code>\u5185\u7684\u5185\u5bb9\uff0c\u4f46\u8981\u6ce8\u610f\uff0c\u8fd9\u6837\u505a\u4f1a\u7834\u574f\u5185\u90e8\u5df2\u6709\u7684\u5143\u7d20\u53ca\u5176\u4e8b\u4ef6\u7ed1\u5b9a\u3002appendChild<\/code>\u65b9\u6cd5\u5219\u53ef\u4ee5\u5728\u4e0d\u7834\u574f\u73b0\u6709\u7ed3\u6784\u7684\u524d\u63d0\u4e0b\u6dfb\u52a0\u65b0\u5185\u5bb9\u3002<\/p>\n<\/p>\n
\u603b\u7ed3\u8d77\u6765<\/strong>\uff0c\u83b7\u53d6\u548c\u64cd\u4f5c\u7f51\u9875\u4e2dbody<\/code>\u7684\u5185\u5bb9\u662f\u524d\u7aef\u5f00\u53d1\u4e2d\u7684\u57fa\u7840\u64cd\u4f5c\u3002\u4ece\u7b80\u5355\u7684\u6587\u672c\u63d0\u53d6\u5230\u590d\u6742\u7684DOM\u7ed3\u6784\u64cd\u4f5c\uff0cJavaScript\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684API\u6765\u6ee1\u8db3\u5f00\u53d1\u8005\u7684\u9700\u6c42\u3002\u901a\u8fc7\u4e0a\u8ff0\u5404\u79cd\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u7075\u6d3b\u5730\u83b7\u53d6\u3001\u4fee\u6539\u548c\u64cd\u4f5cbody<\/code>\u5185\u7684\u5185\u5bb9\uff0c\u4ee5\u5b9e\u73b0\u5404\u79cd\u4ea4\u4e92\u548c\u52a8\u6001\u6548\u679c\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
1. \u5982\u4f55\u4f7f\u7528Javascript\u83b7\u53d6\u7f51\u9875\u7684body\u5185\u5bb9\uff1f<\/strong>
\n\u901a\u8fc7Javascript\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528document.body<\/code>\u6765\u83b7\u53d6\u7f51\u9875\u7684body\u5143\u7d20\uff0c\u7136\u540e\u901a\u8fc7.innerHTML<\/code>\u5c5e\u6027\u83b7\u53d6\u5176\u5185\u90e8\u7684HTML\u5185\u5bb9\u3002<\/p>\n
\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u5c06body\u5185\u5bb9\u5b58\u50a8\u5230\u4e00\u4e2a\u53d8\u91cf\u4e2d\uff1a<\/p>\n
var bodyContent = document.body.innerHTML;\n<\/code><\/pre>\n
2. \u5982\u4f55\u4f7f\u7528Javascript\u5c06body\u5185\u5bb9\u663e\u793a\u5728\u7f51\u9875\u4e0a\uff1f<\/strong>
\n\u5982\u679c\u60a8\u60f3\u901a\u8fc7Javascript\u5c06\u7f51\u9875\u7684body\u5185\u5bb9\u663e\u793a\u5728\u9875\u9762\u4e0a\u7684\u5176\u4ed6\u5730\u65b9\uff0c\u53ef\u4ee5\u4f7f\u7528DOM\u64cd\u4f5c\u5c06\u5176\u63d2\u5165\u5230\u6307\u5b9a\u7684\u5143\u7d20\u4e2d\u3002<\/p>\n
\u9996\u5148\uff0c\u60a8\u9700\u8981\u5728HTML\u4e2d\u521b\u5efa\u4e00\u4e2a\u76ee\u6807\u5143\u7d20\uff0c\u7528\u4e8e\u63a5\u6536body\u5185\u5bb9\u3002\u4f8b\u5982\uff0c\u521b\u5efa\u4e00\u4e2a\u5e26\u6709id\u4e3atarget<\/code>\u7684 <div><\/code> \u5143\u7d20\uff1a<\/p>\n
<div id="target"><\/div>\n<\/code><\/pre>\n
\u7136\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bJavascript\u4ee3\u7801\u5c06body\u5185\u5bb9\u63d2\u5165\u5230\u76ee\u6807\u5143\u7d20\u4e2d\uff1a<\/p>\n
var bodyContent = document.body.innerHTML;\ndocument.getElementById('target').innerHTML = bodyContent;\n<\/code><\/pre>\n
3. \u5982\u4f55\u4f7f\u7528Javascript\u5c06body\u5185\u5bb9\u53d1\u9001\u5230\u670d\u52a1\u5668\u8fdb\u884c\u5904\u7406\uff1f<\/strong>
\n\u5982\u679c\u60a8\u60f3\u901a\u8fc7Javascript\u5c06\u7f51\u9875\u7684body\u5185\u5bb9\u53d1\u9001\u5230\u670d\u52a1\u5668\u8fdb\u884c\u5904\u7406\uff0c\u53ef\u4ee5\u4f7f\u7528AJAX\u6280\u672f\u53d1\u9001POST\u8bf7\u6c42\u3002<\/p>\n
\u9996\u5148\uff0c\u60a8\u9700\u8981\u521b\u5efa\u4e00\u4e2aXMLHttpRequest\u5bf9\u8c61\uff0c\u5e76\u6307\u5b9a\u8bf7\u6c42\u7684\u76ee\u6807URL\u548c\u8bf7\u6c42\u7c7b\u578b\u4e3aPOST\u3002\u7136\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528send<\/code>\u65b9\u6cd5\u53d1\u9001\u8bf7\u6c42\uff0c\u5e76\u5c06body\u5185\u5bb9\u4f5c\u4e3a\u8bf7\u6c42\u7684\u6570\u636e\u53c2\u6570\u53d1\u9001\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
var xhr = new XMLHttpRequest();\nxhr.open('POST', 'http:\/\/example.com\/your-server-url', true);\nxhr.setRequestHeader('Content-Type', 'application\/x-www-form-urlencoded');\n\nvar bodyContent = document.body.innerHTML;\nxhr.send('body=' + encodeURIComponent(bodyContent));\n<\/code><\/pre>\n
\u8bf7\u6ce8\u610f\uff0c\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06body\u5185\u5bb9\u7f16\u7801\u4e3aURL\u53c2\u6570\uff0c\u5e76\u4f7f\u7528encodeURIComponent<\/code>\u65b9\u6cd5\u8fdb\u884c\u8f6c\u4e49\u548c\u7f16\u7801\u3002\u7136\u540e\u4f7f\u7528send<\/code>\u65b9\u6cd5\u53d1\u9001\u8bf7\u6c42\u5230\u6307\u5b9a\u7684\u670d\u52a1\u5668URL\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u83b7\u53d6JavaScript\u9879\u76ee\u4e2d\u7684body\u5185\u5bb9\u901a\u5e38\u6d89\u53ca\u5230\u7f16\u7a0b\u4e2d\u7684DOM\u64cd\u4f5c\uff0c\u5373\u6587\u6863\u5bf9\u8c61\u6a21\u578b\u64cd\u4f5c\u3002\u901a\u8fc7JavaSc […]","protected":false},"author":3,"featured_media":168804,"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\/168790"}],"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=168790"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/168790\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/168804"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=168790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=168790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=168790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}