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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
*{margin:0; padding:0;}
</style>
</head>
<body>
<!-- 最后要显示的地方 -->
<div id="divimg"></div>
<script>
var num = 332,
snum = num.toString(),str = '';
for(var i = 0; i < snum.length; i++){
switch(+snum.charAt(i)){
case 0:
str += '<img src="0.jpg" />';
break;
case 1:
str += '<img src="1.jpg" />';
break;
case 2:
str += '<img src="2.jpg" />';
break;
case 3:
str += '<img src="3.jpg" />';
break;
case 4:
str += '<img src="4.jpg" />';
break;
case 5:
str += '<img src="5.jpg" />';
break;
case 6:
str += '<img src="6.jpg" />';
break;
case 7:
str += '<img src="7.jpg" />';
break;
case 8:
str += '<img src="8.jpg" />';
break;
case 9:
str += '<img src="9.jpg" />';
break;
}
}
document.getElementById('divimg').innerHTML = str;
alert(document.getElementById('divimg').innerHTML)
</script>
</body>
</html>