<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>用for循环填充精灵图</title>
<style type="text/css">
#box{
width: 250px;
margin: 100px auto;
}
#box li{
width: 24px;
height: 24px;
float: left;
margin: 10px;
background-color: pink;
list-style-type: none;
background: url(img/taobaojinglingtu.png) no-repeat;
}
</style>
</head>
<body>
<div id="box">
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></Li >
< Li > </ Li >
< Li > </ Li >
< Li > </ Li >
</ UL >
</ div >
< Script type = "text / JavaScript" >
var LIS = document.querySelectorAll ( ' Li ' );
for ( var I = 0 ; I < lis.length; I ++ ) {
// make the index number is multiplied by 44, is the y coordinate of each li background,is the index y coordinate
var index=i*44;
lis[i].style.backgroundPosition='0 -'+index+'px';
}
</script>
</body>
</html>
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