<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script>
/*-------代理模式，A想执行C方法，A调用B间接执行*/
function peopleSing() {
this.singSong = function() {
var songName = new peopleManageSongs().getSongName();
alert("老子拿到歌了，你妈~~" + songName);
};
};
function peopleManageSongs() {}
peopleManageSongs.prototype.getSongName = function() {
var name = new SongsCreator().getSongName(‘001‘);
return name;
}
function SongsCreator() {
this.getSongName = function(number) {
switch (number) {
case ‘001‘:
return "独家记忆";
case ‘002‘:
return "空白格";
case "003":
return "蓝蓝的天上白云飘";
default:
return "我的心好累";
}
}
this.getVipSongsName = function() {
return "这是VIP的歌";
}
}
var p = new peopleSing().singSong();
</script>
</head>
<body>
</body>
</html>
原文：http://www.cnblogs.com/yqlog/p/5566479.html