获取某类标签案例 

<!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" xml:lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
    <title>Document</title>
    <script>
        var lis=document.getElementsByTagName("li");
        window.onload=function(){
            for(var i=0;i<lis.length;i++)
            {
                lis[i].innerHTML="abc";
            }
        }
    </script>
</head>
<body>
    <ul>
        <li>12345</li>
        <li>12345</li>
        <li>12345</li>
        <li>12345</li>
        <li>12345</li>
    </ul>
</body>
</html>

 

posted @ 2019-07-17 00:35  shanlu  阅读(166)  评论(0)    收藏  举报