<!DOCTYPE html>
<html>
<head>
<meta charset=
"UTF-8"
>
<title>js图片轮播切换</title>
<style type=
"text/css"
>
.imgCon{width: 400px;height: 400px;border: 2px solid #DCDCDC;margin: 100px auto;position: relative;}
.imgCon span{display: block;position: absolute;left: 0px;width: 100%;height: 30px;background: #808080;text-align: center;font-size: 18px;line-height: 30px;}
.numStyle{top: 0px;}
.textStyle{bottom: 0px;}
.imgCon strong{font-size: 30px;color: #000000;position: absolute;top: 50%;display: block;background: gray;cursor: pointer;}
.imgCon .prev{left: 10px;}
.imgCon .next{left: 370px;}
img{width:400px;height: 400px;}
</style>
</head>
<body>
<div
class
=
"imgCon"
>
<span id=
"numCon"
class
=
"numStyle"
>加载中...</span>
<span id=
"textCon"
class
=
"textStyle"
>加载中...</span>
<strong id=
"prev"
class
=
"prev"
><</strong>
<strong id=
"next"
class
=
"next"
>></strong>
<img src=
""
id=
"imgChange"
/>
</div>
<script type=
"text/javascript"
>
var
numCon = document.getElementById('numCon');
var
textCon = document.getElementById('textCon');
var
prev = document.getElementById('prev');
var
next = document.getElementById('next');
var
imgChange = document.getElementById('imgChange');
var
imgArr = ['img/ad1.jpg','img/ad2.jpg','img/ad3.jpg','img/ad4.jpg'];
var
imgText = ['第一张','第二张','第三张','第四张'];
var
num = 0;
function
imgTab(){
numCon.innerHTML = num+1 + '/' + imgArr.length;
textCon.innerHTML = imgText[num];
imgChange.src = imgArr[num];
}
imgTab();
next.onclick =
function
(){
num++;
if
(num == imgArr.length){
num = 0;
}
imgTab();
}
prev.onclick =
function
(){
num--;
if
(num == -1){
num = imgArr.length-1;
}
imgTab();
}
</script>
</body>
</html>