求解为什么我写这个JS没效果
<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN""http://www.w3.org/TR/xhtml1/...
<!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>无标题文档</title>
</head>
<table>
<tr>
<th id="th_3">迟到</th>
</tr>
</table>
<body>
<script type="text/javascript">
var x= document.getElementById('th_3');
if(document.getElementById('th_3').match("迟到")){
document.getElementById('th_3').style.color="red";
}
</script>
</body>
</html> 展开
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<table>
<tr>
<th id="th_3">迟到</th>
</tr>
</table>
<body>
<script type="text/javascript">
var x= document.getElementById('th_3');
if(document.getElementById('th_3').match("迟到")){
document.getElementById('th_3').style.color="red";
}
</script>
</body>
</html> 展开
1个回答
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