JavaScript设计模式：代理模式详解与实战

<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title>代理模式</title>
</head>
<body>
<script>
 //代理模式需要三方
 //1.买家
 function maijia(){
  this.name = "小明";
  this.money = "30万";
 }
 //2.中介
 function zhongjie(){
 }
 zhongjie.prototype.maifang = function(){
  //new fongdong(new maijia()).maifang("20万");
  new fongdong(new maijia()).maifang("20万");
 }
 //3.卖家
 function fongdong(maijia){
  this.maijia_name = maijia.name;
  this.maijia_money = maijia.money;
  this.maifang = function(money){
//   console.log("收到了来自【"+this.maijia_name+"】"+money+"人民币");
   console.log("收到了来自【"+this.maijia_name+"】"+this.maijia_money+"人民币");
  }
 }
 (new zhongjie()).maifang();
</script>
<script>
// A2B
 function A(){
  this.money = "20RMB";
 }
 function to(){
  if(!(this instanceof to)){
   return new to;
  }
 }
 to.prototype.maifang = function(){
  var a = new A();
  new B().maifang(a.money);
 }
 function B(){
  this.maifang = function(money){
   console.log("收到了钱"+money);
  }
 }
 (new to()).maifang();
 to().maifang();
</script>
</body>
</html>