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index.html
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0" />
<title>lazyload</title>
<style type="text/css">p{margin:50px 0;text-align:center;}img{min-height:400px;*height:400px;max-height:600px;display:block;margin:10px auto;}</style>
<script src="src/lazyload.js"></script>
</head>
<body>
<h1>图片加载测试</h1>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/LihuBridge_ROW15257694370_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/WhiteRhinos_ROW10026185451_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/ArborDayOaks_ROW12769150163_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/Inchworm_ROW13415153838_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/HohRainForest_ROW11893875864_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/Husafell_ROW11529869812_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/TulfesTyrol_ROW13190350716_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/KelpGoose_ROW12403620614_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/ArborDayOaks_ROW12769150163_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/Inchworm_ROW13415153838_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/HohRainForest_ROW11893875864_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/Husafell_ROW11529869812_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/TulfesTyrol_ROW13190350716_1920x1080.jpg" src="images/holder.png" /></p>
<h1>容器中图片加载测试</h1>
<div id="container" style="position:relative;height:800px;background:#eee;overflow:auto;">
<p><img data-original="http://www.bing.com/az/hprichbg/rb/LihuBridge_ROW15257694370_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/WhiteRhinos_ROW10026185451_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/ArborDayOaks_ROW12769150163_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/Inchworm_ROW13415153838_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/HohRainForest_ROW11893875864_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/Husafell_ROW11529869812_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/TulfesTyrol_ROW13190350716_1920x1080.jpg" src="images/holder.png" /></p>
<p><img data-original="http://www.bing.com/az/hprichbg/rb/KelpGoose_ROW12403620614_1920x1080.jpg" src="images/holder.png" /></p>
</div>
<script>
function getSlice(arr,start,end){
var i=start,ret=[];
for(;i<end;i++){
ret.push(arr[i]);
}
return ret;
}
LazyLoad(getSlice(document.images,0,13),function(){
this.src=this.getAttribute('data-original');
this.parentNode.appendChild(document.createTextNode('加载成功'));
});
LazyLoad(document.getElementById('container').getElementsByTagName('img'),{callback:function(){
this.src=this.getAttribute('data-original');
this.parentNode.appendChild(document.createTextNode('容器中图片加载成功'));
},container:'container',range:-50});
</script>
</body>
</html>