核心提示：!DOCTYPE htmlhtml head meta charset=UTF-8 title/title style type=text/css img{ position: abs...
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
img{
position: absolute;
display: block;
left: 50%;
top: 50%;
margin-left: -165px;
margin-top: -110px;
/*clip: rect(0px,50px,200px,0px);*/
}
body{
padding-top: 200px;
}
</style>
</head>
<body>
<img src="4.jpg" alt="" />
</body>
<script type="text/javascript">
var img=document.getElementsByTagName("img")[0],p=20
img.onclick=function(){
// img.style.width=0
var a=setInterval(function(){
img.style.clip="rect(0,"+p+"px,220px,auto)"
p++
if(p==330){
p=20
// clearInterval(a)
}
},10)
console.log(p)
}
</script>
</html>
