<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>表格隔行换色</title>
<script>
function changeColor(id,flag){
if(flag=="over"){
document.getElementById(id).style.backgroundColor="red";
}else if(flag=="out"){
document.getElementById(id).style.backgroundColor="white";
}
}
</script>
</head>
<body>
<table border="1" width="500" height="50" align="center">
<thead>
<tr>
<th>编号</th>
<th>姓名</th>
<th>年龄</th>
</tr>
</thead>
<tbody>
<tr onmouseover="changeColor('tr1','over')" id="tr1" onmouseout="changeColor('tr1','out')">
<td>1</td>
<td>张三</td>
<td>22</td>
</tr>
<tr onmouseover="changeColor('tr2','over')" id="tr2" onmouseout="changeColor('tr2','out')">
<td>2</td>
<td>李四</td>
<td>25</td>
</tr>
</tbody>
</table>
</body>
</html>