随机数 

var chars =

['0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S

','T','U','V','W','X','Y','Z'];
 
function generateMixed(n) {
     var res = "";
     for(var i = 0; i < n ; i ++) {
         var id = Math.ceil(Math.random()*35);
         res += chars[id];
     }
     return res;
}

实例代码：

<!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>随机数</title>
<SCRIPT type=text/javascript src="js/jquery.js"></SCRIPT><!--banner轮换js和搜索内容js共用-->
<script type="text/javascript">
var chars = ['0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'];
 
function generateMixed(n) {
     var res = "";
     for(var i = 0; i < n ; i ++) {
         var id = Math.ceil(Math.random()*35);
         res += chars[id];
     }
     return res;
}
$(document).ready(function(){
   
   var sjs=generateMixed(6).toLowerCase( );
 
  $(".shuzi").html("随机数："+sjs);
 //alert(sjs);

 
});


</script>

</head>

<body>
<div class="shuzi">33</div>

</body>
</html>

 

posted @ 2014-06-27 17:14  webnote  阅读(149)  评论(0)  编辑  收藏  举报