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 )