php中的设计模式之--门面模式

' ;
	}   
}


//(2) pc 机器

class Pcmachine {
    public function turnOn() {} 
    public function turnOff() {
		echo 'turn off PcMathion 
' ;
	}
}

// (3) 关闭电源

class Power {
    public function turnOn() {} 
    public function turnOff() {
		echo 'turn off Power 
' ;
 	}
}

// 关机的门面角色 

class PcFacade implements Facade{
	
	private  $PcLight ; 
	private  $Pcmachine ; 
	private  $Power ; 
 
	public function __construct(){
	 $this->PcLight = new PcLight();
         $this->Pcmachine = new Pcmachine();
         $this->Power = new Power();
	}
	
	// 门面角色的应用
	 public function turnOff() { 
          $this->PcLight ->turnOff();
          $this->Pcmachine ->turnOff();
          $this->Power ->turnOff();
	 } 
        public function turnOn() {}
	
}


// 应用
$button = new PcFacade(); 
$button ->turnOff(); 

/* 其实门面模式就是把几个子系统(实例或者类.统一一个统一的接口进行执行,客户端不用关注子系统,只用门面即可 )