JS实现简单tab选项卡切换

时间:2021-04-02 人气:0

本人在上一篇文章也写了用JS来实现tab选项卡切换效果，但是上次的那个代码比较复杂，这次是简化版的。

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Tab效果</title>
 <style type="text/css">
 ul{
 list-style: none;
 }
 *{
 margin: 0;
 padding: 0;
 }
 #tab{
 border: 1px solid #ccc;
 margin: 20px auto;
 width: 403px;
 border-top: none;
 }
 .list ul{
 overflow: hidden;
 }
 .list li{
 float: left;
 }
 .list li{
 padding-left: 28px;
 padding-right: 28px;
 padding-top: 6px;
 padding-bottom: 6px;
 border: 1px solid #ccc;
 background: -moz-linear-gradient(top, #FEFEFE, #EDEDED);
 background:-webkit-gradient(linear,left top,left bottom, from(#fefefe), to(#ededed));
 border-right: none;
 cursor: pointer;
 }
 #listCon{
 height: 100px;
 }
 #listCon div{
 padding:10px;
 position:absolute;
 opacity:0;
 filter:alpha(opacity=0);
 }
 .list li:first-child{
 border-left: none;
 }
 .list li:hover{
 background: #fff;
 border-bottom: none;
 }
 .list li.cur{
 background: #fff;
 border-bottom: none;
 }
 #listCon div.cur{
 opacity:1;
 filter:alpha(opacity=100);
 }
 </style>
</head>
<body>
 <div id="tab">
 <div class="list">
 <ul>
 <li class="cur">许嵩</li>
 <li>周杰伦</li>
 <li>林俊杰</li>
 <li>陈奕迅</li>
 </ul>
 </div>
 <div id="listCon">
 <div class="cur">断桥残雪、千百度、幻听、想象之中</div>
 <div>红尘客栈、牛仔很忙、给我一首歌的时间、听妈妈的话</div>
 <div>被风吹过的夏天、江南、一千年以后</div>
 <div>十年、K歌之王、浮夸</div>
 </div>
 </div>
 <script type="text/javascript">
 window.onload = function(){
 var oDiv = document.getElementById("tab");
 var lis = oDiv.getElementsByTagName("li");
 var oDivCon = document.getElementById("listCon");
 var lisDiv = oDivCon.getElementsByTagName("div"); 
 for(var i=0;i<lis.length;i++){
 lis[i].index = i;
 lis[i].onmouseover = function(){
  show(this.index);
 }
 }
 function show(a){
 for(var j=0;j<lis.length;j++){
  lis[j].className = "";
  lisDiv[j].className = "";  
 }
 lis[a].className = "cur";
 lisDiv[a].className = "cur";
 }
 }
 </script>
</body>
</html>

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