js修改隔行tr的颜色。 

<!DOCTYPE html>
<html lang="zh-Hans">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<table>
    <tr>
        <td>24</td>
    </tr>
    <tr>
        <td>24</td>
    </tr>
    <tr>
        <td>24</td>
    </tr>
    <tr>
        <td>24</td>
    </tr>
    <tr>
        <td>24</td>
    </tr>
    <tr>
        <td>24</td>
    </tr>
    <tr>
        <td>24</td>
    </tr>
    <tr>
        <td>24</td>
    </tr>
</table>

<input type="button" value="测试隔行变色" onclick="getTr()" />
<script>
    function  getTr(){
        var trlist=document.getElementsByTagName("tr");
        for(var i=0;i<trlist.length;i++){
            if(i%2==0){
                trlist[i].style.backgroundColor="red";

            }else{
                trlist[i].style.backgroundColor="green";
            }
        }
    }
</script>
</body>
</html>
posted @ 2016-05-18 11:55  顺其自然²º¹?  阅读(446)  评论(0)  编辑  收藏  举报