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JavaScript ---- 懒加载demo

2016-07-26 15:42 435 查看 
<!DOCTYPE HTML>
<html>
<head>
<title>延时加载</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script type="text/javascript" src="http://www.ijquery.cn/js/jquery-1.7.2.min.js"></script>
<script type="text/javascript" src="js/lazyload/jquery.lazyload.js"></script>
<style type="text/css">
ul,li{list-style:none}
img{width:100%;}
</style>
<script type="text/javascript">
$(function() {
$("img").lazyload({
placeholder : "js/lazyload/grey.gif",  //用图片提前占位
effect      : "fadeIn",//载入使用何种效果,effect(特效),值有show(直接显示),fadeIn(淡入),slideDown(下拉)等,常用fadeIn
threshold : -50 //提前开始加载

});
});
</script>
</head>
<body bgcolor="#eee">
<div style="width:1000px;margin:0 auto;">
<ul>

<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>
<li><img src="http://img1.gtimg.com/henan/pics/hv1/61/203/2098/136474276.jpg" alt=""></li>

</ul>
</div>
</body>
</html>
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