try_dom_body_classname 在线代码实例

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运行代码

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool教程(w3cschool.cn)</title>
</head>
<body id="myid" class="mystyle">
<script>
var x=document.getElementsByTagName('body')[0];
document.write("Body 元素 CSS 类为: " + x.className);
document.write("<br>");
document.write("另一种方式: ");
document.write(document.getElementById('myid').className);
</script>
</body>
</html>
 
 
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运行结果
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