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js仿京东轮播效果 选项卡套选项卡使用
简介本文实例为大家分享了js仿京东轮播效果的具体代码，实现选项卡套用选项卡，供大家参考，具体内容如下效果图：代码：无标题</div>
<div class="news_infos"><div id="MyContent"><p>本文实例为大家分享了js仿京东轮播效果的具体代码，实现选项卡套用选项卡，供大家参考，具体内容如下</p>
<p>效果图：</p>
<p><a href="javascript:;" onclick="showimg('/UploadFiles/2021-04-02/201711284454522.jpg');"><img src="/UploadFiles/2021-04-02/201711284454522.jpg" alt="js仿京东轮播效果 选项卡套选项卡使用" onmousewheel="return bbimg(this)" onload="javascript:resizepic(this)" border="0"/></a></p>
<p>代码：</p>
<div class="htmlcode">
<pre class="brush:xhtml;">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
*{margin:0;padding:0;}
ul{list-style:none;}img{border:0;}
#tab{width:1000px;height:500px;margin:50px auto;}
#tab .title {width:200px;height:500px;display:inline-block;}
#tab .title li {width:200px;height:125px;float:left;line-height:125px;text-align:center;font-size:30px;background:#f1f1f1;border-bottom:1px dotted #000;}
#tab .title li.active {background:#fff;}
#tab .title li:hover{background:#fff;}
#tab .content {width:799px;height:500px;float:right;display:inline-block;position:relative;border:none;border:none;}
#tab .content img{position:absolute;top:0;left:0;width:799px;height:500px;}
#tab .content ul {position:absolute;width:799px;height:45px;bottom:0;left:0;filter(alpha:80);opacity:0.8;background:#000;}
#tab .content ul li {float:left;height:45px;line-height:45px;background:#d5d5d5;border-right:1px solid #fff;cursor:pointer;text-align:center;}
#tab .content ul li.active {background:red;}
#tab .content ul li:hover{background:red;}
</style>
<script>
window.onload = function () {
var tab = document.getElementById('tab');
var title = tab.getElementsByClassName('title')[0];
var titleLi = title.getElementsByTagName('li');
var main = tab.getElementsByClassName('main')[0];
var img = main.getElementsByTagName('img')[0];
var ul = main.getElementsByTagName('ul')[0];
var subtitleLi = ul.getElementsByTagName('li');
var arr = [
{
title : '最热团购',
subtitle : ['最热团购1','最热团购2','最热团购3'],
pic : [
'img/tab/1-1.png',
'img/tab/1-2.png',
'img/tab/1-3.png'
]
},
{
title : '商城特惠',
subtitle : ['商城特惠1','商城特惠2','商城特惠3','商城特惠4'],
pic : [
'img/tab/2-1.png',
'img/tab/2-2.png',
'img/tab/2-3.png',
'img/tab/2-4.png'
]
},
{
title : '名品推荐',
subtitle : ['名品推荐1','名品推荐2','名品推荐3','名品推荐4','名品推荐5'],
pic : [
'img/tab/3-1.png',
'img/tab/3-2.png',
'img/tab/3-3.png',
'img/tab/3-4.png',
'img/tab/3-5.png'
]
},
{
title : '缤纷活动',
subtitle : ['缤纷活动1','缤纷活动2','缤纷活动3','缤纷活动4'],
pic : [
'img/tab/4-1.png',
'img/tab/4-2.png',
'img/tab/4-3.png',
'img/tab/4-3.png',
]
}
];
// 初始化
for ( var i = 0; i < arr.length; i++ ) {
// 大选项卡的标题
var oLi = document.createElement('li');
oLi.innerHTML = arr[i].title;
oLi.index = i;
oLi.onclick = function () {
highlight(this);
ul.innerHTML = '';
changeTab(this.index);
}
title.appendChild(oLi);
}
changeTab(0);
function changeTab(num) {
// 大选项卡的内容
img.src = arr[num].pic[1];
// 小标题
for ( var j = 0; j < arr[num].subtitle.length; j++ ) {
oLi = document.createElement('li');
oLi.innerHTML = arr[num].subtitle[j];
oLi.style.width = Math.floor(parseInt(800 / arr[num].subtitle.length) - 2) + 'px';
oLi.index = j;
oLi.onclick = function () {
highlight(this);
this.parentNode.previousElementSibling.src = arr[num].pic[this.index];
}
ul.appendChild(oLi);
}
}
function highlight (ele) {
var aLi = ele.parentNode.children;
for ( var i = 0; i < aLi.length; i++ ){
aLi[i].className = '';
}
ele.className = 'active';
}
}
</script>
</head>
<body>
<div id="tab">
<ul class="title">
</ul>
<div class="content">
<div class="main">
<img>
<ul>
</ul>
</div>
</div>
</div>
</body>
</html>
</pre>
</div>
<p>以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。</p></div>
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