用jquery是实现图片自动轮播

我行我上 2015-09-29 05:55:28

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>前端练习</title>
<meta content="text/html;charset=utf-8" http-equiv="Content-Type" />
<link rel="stylesheet" type="text/css" href="css/showpicturesinturn.css">
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
<style type="text/css">
div.pictures{
width:500px;
height:400px;
overflow: hidden;
position:relative;
float: left;
top:0;
left:-250px;
margin-left: 50%;
}
ul.picture {
width: 2000px;
float: left;
list-style: none;
position: relative;
}
.picture li{
width:500px;
height:400px;
float: left;
position: relative;
}
.number{
position: absolute;
top:350px;
left:350px;
list-style: none;
}
.number li{
color:#ddd;
float:left;
width:30px;
height:25px;
line-height: 25px;
text-align: center;
border: 1px solid #fff;
background-color:#6f4f67;
cursor: pointer;
}
</style>
</head>
<body id="showpicturesinturn">
<div class="pictures">
<ul class="picture">
<li><img src="images/mypicture1.png" title="我的图片1" alt="我的图片1"></li>
<li><img src="images/mypicture2.png" title="我的图片2" alt="我的图片2"></li>
<li><img src="images/mypicture3.png" title="我的图片3" alt="我的图片3"></li>
<li><img src="images/mypicture4.png" title="我的图片4" alt="我的图片4"></li>
</ul>
<ul class="number">
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
</ul>
</div>
<script type="text/javascript" src="js/showpicturesinturn.js"></script>
<script type="text/javascript">
$(function(){
function animation()
{
showpicturesinturn = setInterval(function(){
if($(".picture li").css("left")=="-1500px"){
$(".picture li").css("left","0px");
}
else{
$(".pictures li").animate({left:"-=500px"});
}
},2000);
}
animation();
$(".number li").click(function(){
clearInterval(showpicturesinturn);
$(".picture li").css("left","-"+$(this).index()*500+"px");
animation();
});
});
</script>
</body>
</html>

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