原生格隔行变色案例
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<style>
* {
padding: 0;
margin: 0;
}
.wrap {
width: 500px;
margin: 100px auto 0;
}
table {
border-collapse: collapse;
border-spacing: 0;
border: 1px solid #c0c0c0;
width: 500px;
}
th,
td {
border: 1px solid #d0d0d0;
color: #404060;
padding: 10px;
}
th {
background-color: #09c;
font: bold 16px "微软雅黑";
color: #fff;
}
td {
font: 14px "微软雅黑";
}
tbody tr {
background-color: pink;
}
</style>
</head>
<body>
<div class="wrap">
<table>
<thead>
<tr>
<th>序号</th>
<th>姓名</th>
<th>课程</th>
<th>成绩</th>
</tr>
</thead>
<tbody id="j_tb">
<tr>
<td>
1
</td>
<td>柳岩</td>
<td>语文</td>
<td>100</td>
</tr>
<tr>
<td>
2
</td>
<td>苍老师</td>
<td>日语</td>
<td>100</td>
</tr>
<tr>
<td>
3
</td>
<td>凤姐</td>
<td>营销学</td>
<td>100</td>
</tr>
<tr>
<td>
4
</td>
<td>芙蓉姐姐</td>
<td>数学</td>
<td>10</td>
</tr>
<tr>
<td>
5
</td>
<td>佐助</td>
<td>英语</td>
<td>100</td>
</tr>
<tr>
<td>
6
</td>
<td>卡卡西</td>
<td>体育</td>
<td>100</td>
</tr>
<tr>
<td>
7
</td>
<td>乔峰</td>
<td>体育</td>
<td>100</td>
</tr>
</tbody>
</table>
</div>
<script src="common.js"></script>
<script>
//获取tbody中所有的行
var trs=my$("j_tb").getElementsByTagName("tr");
for(var i=0;i<trs.length;i++){
trs[i].style.backgroundColor=i%2==0?"yellow":"green";
//为每一行注册鼠标进入和离开的事件
trs[i].onmouseover=mouseoverHandle;
trs[i].onmouseout=mouseoutHandle;
}
var def="";//这个变量用来存储鼠标进入这一行之前的颜色
function mouseoverHandle() {
def=this.style.backgroundColor;//把颜色存储到变量中
this.style.backgroundColor="blue";
}
function mouseoutHandle() {
this.style.backgroundColor=def;
}
</script>
</body>
</html>
