js隔行变色_js 隔行变色-优快云博客

本文介绍了一种使用HTML和CSS创建列表的方法，并通过JavaScript为列表项添加了交互效果，包括背景颜色变化和鼠标悬停效果。

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<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        .box {
            width: 300px;
        }
        li {
            line-height: 30px;
            list-style-type: none;
        }
        li span {
            margin:5px;
        }
        .current{
            background-color: #aaa!important;
        }
    </style>
    <script>
        window.onload = function(){
            var lis = document.getElementsByTagName("li");
            for(var i=0;i<lis.length;i++)
            {
                if(i % 2 == 0)
                {
                    lis[i].style.backgroundColor = "#eee";
                }
                else
                {
                    lis[i].style.backgroundColor = "#ddd";
                }

                lis[i].onmouseover = function(){

                    this.className = "current";
                }
                lis[i].onmouseout = function(){

                    this.className = "";
                }
            }

          /*  var lis = document.getElementsByTagName("li");  // 得到所有的li
//alert(lis.length);
            for(var i = 0; i<lis.length; i++)
            {
                if(i%2 == 0)  // 只有偶数能被2整除
                {
                    lis[i].style.backgroundColor = "#eee";
                }
                //鼠标经过li 的时候， 当前的底色变亮
                lis[i].onmouseover = function(){
                    this.className = "current";
                }
                lis[i].onmouseout = function(){
                    this.className = "";
                }
            }*/
        }
    </script>
</head>
<body>
<div class="box">
    <ul>
        <li>
            <span>上证指数</span><span>3641</span><span>10-5</span><span>0.16%</span>
        </li>
        <li>
            <span>上证指数</span><span>3641</span><span>10-5</span><span>0.16%</span>
        </li>
        <li>
            <span>上证指数</span><span>3641</span><span>10-5</span><span>0.16%</span>
        </li>
        <li>
            <span>上证指数</span><span>3641</span><span>10-5</span><span>0.16%</span>
        </li>
        <li>
            <span>上证指数</span><span>3641</span><span>10-5</span><span>0.16%</span>
        </li>
        <li>
            <span>上证指数</span><span>3641</span><span>10-5</span><span>0.16%</span>
        </li>
        <li>
            <span>上证指数</span><span>3641</span><span>10-5</span><span>0.16%</span>
        </li>
        <li>
            <span>上证指数</span><span>3641</span><span>10-5</span><span>0.16%</span>
        </li>
        <li>
            <span>上证指数</span><span>3641</span><span>10-5</span><span>0.16%</span>
        </li>
        <li>
            <span>上证指数</span><span>3641</span><span>10-5</span><span>0.16%</span>
        </li>
    </ul>
</div>
</body>
</html>