<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>图片向上切换</title>
<style>
.up{100%;height:120px;margin:200px auto 20px auto;text-align:center}
.up img{150px;height:120px;}
.down{100%;height:64px;text-align:center;}
.down img{80px;}
</style>
<script src="jquery-1.9.1.js"></script>
<script>
$(function(){
$(".down img").click(function(){//获取所有的小图，点击事件
var addr=$(this).attr("src");//获取当前被点击的小图的src
$(".up img").attr("src",addr);//把大图的src替换成小图的src
});
});
</script>
</head>
<body>
<div class="up"><img src="images/hot1.jpg" alt="hot1"></div>
<div class="down">
<img src="images/hot1.jpg" alt="hot1">
<img src="images/hot2.jpg" alt="hot2">
<img src="images/hot3.jpg" alt="hot3">
<img src="images/hot4.jpg" alt="hot4">
</div>
</body>
</html>