Design pattern -- Decorator.

  装饰模式，可以用一个装修实例来说明。

 

<?php
/**
 * 
 * @author lake
 * @package Decorator
 *
 */
interface House
{
    public function decorate();
}
class MyHouse implements House
{
    public function decorate()
    {
        echo "我是lake,我要装修我的房子".__CLASS__."<br/>";
    }
}
abstract class Decorator implements House
{
    public function __construct( House $house )
    {
            $this->house = $house;
    }

    public function decorate()
    {
        
    }
}
class worker1 extends Decorator
{

    public function decorate( )
    {
        echo $this->house->decorate()."我是装修工'".__CLASS__."',我负责给您的房子刷墙纸<br/>";
    }
}

class worker2 extends Decorator
{
    public function decorate( )
    {
        echo $this->house->decorate()."我是装修工'".__CLASS__."',我负责给您的房子铺上地板<br/>";
    }
}

class worker3 extends Decorator
{
    public function decorate( )
    {
        echo $this->house->decorate()."我是装修工'".__CLASS__."',我负责给您的房子装上吊灯<br/>";
    }
}

$o = new worker3(new worker2(new worker1(new MyHouse())));

echo $o->decorate();
?>