JavaScript建造者模式详解：概念、作用与代码实战

<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title>建造者模式</title>
</head>
<body>
<script>
 //1.产出东西是房子
 //2.包工头调用工人进行开工 而且他要很清楚工人们具体的某一个大项
 //3.工人是盖房子的 工人可以建卧室 建客厅 建厨房
 //4.包工头只是一个接口而已 他不干活 他只对外说我能建房子
 function Fangzi(){//Fangzi可以理解为单例模式
  if(!(this instanceof Fangzi)){
   return new Fangzi();
  }
  this.woshi = "";
  this.keting = "";
  this.chufang = "";
 }
 function Baogongtou(){
  if(!(this instanceof Baogongtou)){
   return new Baogongtou();
  }
  this.jianfangzi = function(gongren){
   gongren.jian_chufang();
   gongren.jian_keting();
   gongren.jian_woshi();
  }
 }
 function Gongren(){
  if(!(this instanceof Gongren)){
   return new Gongren();
  }
  this.jian_woshi = function(){
   console.log("建卧室");
  }
  this.jian_keting = function(){
   console.log("建客厅");
  }
  this.jian_chufang = function(){
   console.log("建厨房");
  }
  this.jiaofang = function(){
   var _fangzi = new Fangzi();
   _fangzi.woshi = "ok";
   _fangzi.keting = "ok";
   _fangzi.chufang = "ok";
   return _fangzi;
  }
 }
 var gongren = new Gongren();
 var baogongtou = new Baogongtou();
 baogongtou.jianfangzi(gongren);
 var myfangzi = gongren.jiaofang();
 console.log(myfangzi);
</script>
</body>
</html>