示例如下：
復制代碼 代碼如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標題文檔</title>
<script type="text/javascript">
//使用javascript通過className來獲取元素
function getElementsbyClassName(n){
var classElements=[],allElements=document.getElementsByTagName('*');
for(var i=0;i<allElements.length;i++){
if(allElements[i].className==n){
classElements[classElements.length]=allElements[i];
}
}
return classElements;
}
</script>
<style type="text/css" >
.shouye{
font-size:12px;
color:red;
}
</style>
</head>
<body>
<div >張三</div>
<script type="text/javascript">
var XX=getElementsbyClassName('shouye');
for(var i=0;i<XX.length;i++){
XX[i].className="";
}
</script>
</body>
</html>
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