【img】
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.8.3.js'></script>
<style type='text/css'>
.test {
height: 600px;
width: 600px;
}
</style>
<script type='text/javascript'>
$(window).load(function(){
$("img").click(function() {
$(this).toggleClass("test");
});
});
</script>
</head>
<body>
<img src="http://www.yjpub.cn/style/download.png" />
</body>
</html>
