<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>变色表格示例</title>
<script language="javascript">
function changeColor(row){
document.getElementById(row).style.backgroundColor='#CCCCFF';
}
function resetColor(row){
document.getElementById(row).style.backgroundColor=";
}</script>
</head>
<body>
<table width="200" border="1" cellspacing="1" cellpadding="1" align="center">
<tr><th>学校</th><th>专业</th><th>人数</th></tr>
<tr align="center" id="row1"
onMouseOver="changeColor('row1')" onMouseOut="resetColor('row1')">
<th>北大</th><th>法律</th><th>2000</th>
</tr>
<tr align="center" id="row2"
onMouseOver="changeColor('row2')" onMouseOut="resetColor('row2')">
<th>清华</th><th>计算机</th><th>5000</th>
</tr>
<tr align="center" id="row3"
onMouseOver="changeColor('row3')" onMouseOut="resetColor('row3')">
<th>人大</th><th>经济</th><th>6000</th>
</tr>
</table>
</body>
</html>
