外观模式

外观模式:为子系统中的一组接口提供一个一致的界面,此模式定义了一个高层接口,这个接口使得这一子类系统更加容易使用。

class Stock1
{

    public  function sell(){

        echo '卖股票1<br>';
    }

    public  function buy(){

        echo '买股票1<br>';
    }

}

class Stock2
{

    public  function  buy(){

         echo '买股票2<br>';
    }


    public  function  sell(){

        echo '卖股票2<br>';
    }

}

class NationDebt
{
    public  function buy(){

        echo  '买国债<br>';
    }

    public  function  sell(){

        echo '卖国债<br>';

    }
}

class Real
{

    public  function  buy(){

        echo  '购买房地产<br>';
    }

    public  function sell(){

        echo '卖地产<br>';
    }

}

class Found
{

    private  $stock1;
    private  $stock2;
    private  $nationDebt;
    private  $real;

    public  function __construct()
    {

        $this->stock1        = new  Stock1();
        $this->stock2        = new  Stock2();
        $this->nationDebt    = new NationDebt();
        $this->real          = new Real();

    }

    public function buyFound(){

        $this->stock1->buy();
        $this->stock2->buy();
        $this->nationDebt->buy();
        $this->real->buy();

    }

    public  function sellFound(){

        $this->stock1->sell();
        $this->stock2->sell();
        $this->nationDebt->sell();
        $this->real->sell();

    }
}

$found = new Found();

$found->buyFound();

$found->sellFound();