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ex-073.html
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<!DOCTYPE html>
<html>
<head>
<title>綜合範例 - 圖片切換</title>
<style type="text/css">
body{
padding: 2em;
}
.main-image{
display: block;
margin-bottom: 1em;
width: 400px; height: 400px;
border: 1px solid #555;
}
.main-image > img{
width: 100%; height: 100%;
}
.img-list{ overflow: hidden; }
.img-list .img {
float: left; display: block;
margin-right: 2px;
margin-bottom: 2px;
}
.img-list .active{
background-color: #f00;
}
.img-list img{
width: 80px; height: 80px;
}
</style>
</head>
<body>
<div class="main-image">
<img src="http://lorempixel.com/400/400/sports/1" alt="">
</div>
<div class="img-list">
<a href="#" class="img active">
<img src="http://lorempixel.com/400/400/sports/1" alt="">
</a>
<a href="#" class="img">
<img src="http://lorempixel.com/400/400/sports/2" alt="">
</a>
<a href="#" class="img">
<img src="http://lorempixel.com/400/400/sports/3" alt="">
</a>
<a href="#" class="img">
<img src="http://lorempixel.com/400/400/sports/5" alt="">
</a>
<a href="#" class="img">
<img src="http://lorempixel.com/400/400/sports/6" alt="">
</a>
<a href="#" class="img">
<img src="http://lorempixel.com/400/400/sports/7" alt="">
</a>
</div>
<script src="scripts/jquery-3.1.0.js"></script>
<script type="text/javascript">
// 1. 點擊 img 區塊時，將大圖的 src 網址，換成小圖的 src 網址。
// 2. 更換 active 這個 class 的擁有者。
$('.img-list > a').on('click', function(e){
// code here
e.preventDefault();
var targetSrc = $(this).children('img').attr('src');
$('.active').removeClass('active');
$(this).toggleClass('active');
$('.main-image').children('img').attr('src',targetSrc);
});
</script>
</body>
</html>