<!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=gb2312" />
<title>无标题文档</title>
<script>
var arr = [12, 8, 33, 56, 11];
arr.sort(function(n1,n2){
return n1-n2;
});
alert(arr);
</script>
</head>
<body>
</body>
</html>
返回值的正负告诉sort如何排序。
