回调函数高级

源码：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
<script type="text/javascript">
function f(num,callback){

  return(callback(1));

}

 function test(){
     num = 10000;
     var that = this;
     this.me = 111;
  alert(f(num,function(back){ //匿名高层处理函数
     return that.me + back ;
  }) + 10);   //122
 }
 test();
</script>
</head>

<body>

</body>
</html>

　　

完

posted @ 2011-08-27 14:27  wangkangluo1  阅读(342)  评论(0)  编辑  收藏  举报