<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<style type="text/css">
#banner {
width:100%;
padding:0;
clear: both;
position: relative;
height: 400px;
z-index:1;
}
#img-list {
display: block;
width:5760px;
height: 400px;
overflow: hidden;
z-index:1;
position: relative;
}
#img-list li{
float: left;
width:100%;
height: 400px;
overflow: hidden;
/* position: absolute;
top:0;
left:0; */
z-index: 2;
}
#list {
width:100%;
height:18px;
text-align: center;
position: absolute;
bottom: 10px;
z-index: 100;
}
#list > span {
width:18px;
height: 18px;
overflow: hidden;
display: inline-block;
margin:0 2px;
background: url(../images/yuan.png);
cursor: pointer;
}
#list .on {
background: url(../images/huanyu.png);
}
</style>
<body>
<div id="banner">
<ul id="img-list">
<li><img src="https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fa0.att.hudong.com%2F30%2F29%2F01300000201438121627296084016.jpg&refer=http%3A%2F%2Fa0.att.hudong.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=jpeg?sec=1617503215&t=76c32e76f33522b5103e35ec6bd8ac67" alt="1"/></li>
<li><img src="https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fa2.att.hudong.com%2F27%2F81%2F01200000194677136358818023076.jpg&refer=http%3A%2F%2Fa2.att.hudong.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=jpeg?sec=1617503215&t=4cf2c362ac2d0004c07357751334ad2a" alt="2"/></li>
</ul>
<div id="list">
<span index="1" class="on"></span>
<span index="2"></span>
<span index="3"></span>
</div>
</div>
</body>
<script type="text/javascript">
var banner=document.getElementById('banner');
var imglist=document.getElementById('img-list').getElementsByTagName("li");
var list=document.getElementById('list').getElementsByTagName('span');
var index=0;
var timer=null;
//设置自动播放函数
function autoPlay () {
if (++index >= imglist.length) {index = 0};
changeImg(index);
}
// 鼠标划过整个容器时停止自动播放
banner.onmouseover = function () {
clearInterval(timer);
}
// 鼠标离开整个容器时继续播放至下一张
banner.onmouseout=function(){
timer=setInterval(autoPlay,2000);
}
// 定义并调用自动播放函数
timer = setInterval(autoPlay, 2000);
// 接着定义图片的切换函数
// 定义图片切换函数
function changeImg (curIndex) {
for (var i = 0; i < imglist.length; i++) {
imglist[i].style.display = "none";
list[i].className = "";
}
imglist[curIndex].style.display = "block";
list[curIndex].className = "on";
}
for (var i = 0; i < list.length; i++) {
list[i].index=i;
list[i].onmouseover = function () {
clearInterval(timer);
changeImg(this.index);
};
</script>
</html>