📄 5-17.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>className属性</title>
<style type="text/css">
.myUL1{
color:#0000FF;
font-family:Arial;
font-weight:bold;
}
.myUL2{
color:#FF0000;
font-family:Georgia, "Times New Roman", Times, serif;
}
</style>
<script language="javascript">
function check(){
var oMy = document.getElementsByTagName("ul")[0];
oMy.className = "myUL2"; //修改CSS类
}
</script>
</head>
<body>
<ul onclick="check()" class="myUL1">
<li>HTML</li>
<li>JavaScript</li>
<li>CSS</li>
</ul>
</body>
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