用js使表格高亮显示
一、步骤分析
第一步：确定事件(onmouseover和onmouseout)并分别为其绑定一个函数
第二步：获取鼠标移上去的那行，对其设置背景颜色
二、代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>用js使表格高亮显示</title>
<link rel="stylesheet" href="">
<script type="text/javascript">
function onmouse(a,b){
if(b=="over"){
document.getElementById(a).style.backgroundColor="red";
}
if(b=='out'){
document.getElementById(a).style.backgroundColor="";
}
}
</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="onmouse('tr0','over')" id="tr0" onmouseout="onmouse('tr0','out')">
<td>1</td>
<td>张三</td>
<td>22</td>
</tr>
<tr onmouseover="onmouse('tr1','over')" id="tr1" onmouseout="onmouse('tr1','out')">
<td>2</td>
<td>李四</td>
<td>25</td>
</tr>
<tr onmouseover="onmouse('tr2','over')" id="tr2" onmouseout="onmouse('tr2','out')">
<td>3</td>
<td>王五</td>
<td>27</td>
</tr>
<tr onmouseover="onmouse('tr3','over')" id="tr3" onmouseout="onmouse('tr3','out')">
<td>4</td>
<td>赵六</td>
<td>29</td>
</tr>
<tr onmouseover="onmouse('tr4','over')" id="tr4" onmouseout="onmouse('tr4','out')">
<td>5</td>
<td>田七</td>
<td>30</td>
</tr>
<tr onmouseover="onmouse('tr5','over')" id="tr5" onmouseout="onmouse('tr5','out')">
<td>6</td>
<td>汾九</td>
<td>20</td>
</tr>
</tbody>
</table>
</body>
</html>
三、结果
开始显示的界面：
鼠标移入张三哪行的界面：
鼠标移出张三哪行的界面
