GitHub地址：https://github.com/malsup/media/tree/master
下载jquery插件
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<link rel="stylesheet" type="text/css" href="bootstrap.min.css" />
<script src="jquery.js"></script>
<script type="text/javascript" src="jquery.media.js"></script>
<script type="text/javascript">
$(function(){
var height=$(window).height();
var width=$(window).width();
$('a.media').media({width:width, height:height});
});
</script>
</head>
<body>
<center>
<div class="panel panel-primary">
<div class="panel-body">
<a class="media" href="__ROOT__<{$src}>"></a>
</div>
</center>
<div class="container">
<a type="button" href="" class="btn btn-primary btn-lg btn-block">查看结果</a>
</div>
</body>
</html>