<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<style type="text/css">
#show{
width:150px;
height: 280px;
margin:0 auto;
background:#2c2c2c;
color:red;
text-align:center;
}
</style>
<title>循环</title>
<script type="text/javascript" >
var n = parseInt(window.prompt("请输入n的值",0));
var i = 1;
var max = parseInt(prompt("请输入第"+i+"数",0));
while(i<n)
{
i++;
num = parseInt(prompt("请输入第"+i+"数",0));
if(max<num){
max=num;
}
}
document.write("<div id='show'>"+max+"</div>");
</script>
</head>
<body>
</body>
</html>