设计模式之桥接模式

设计模式之桥接模式

　　桥接模式是为了把抽象与实现相分离，让它们都可以独立的变化。

 

　　

interface Say{
    public function say();
}

abstract class Person {
    public $mouth;

    public __construct(Say $mouth){
        $this->mouth = $mouth;
    }
    abstract function say();
}

class man extends Person{
    public function say(){
        $this->mouth->say();
    }
}

class woman extends Person{
    public function say(){
        $this->mouth->say();
    }
}

public class ManMouth implements Say{
    public function say(){
        echo "男人说话";
    }
}

public class WomenMouth implements Say{
    public function say(){
        echo "女人说话";
    }
}

class client{
    Person $person  = new Man(new $ManMouth());
    $person->say(); // 输出 男人说话

    Person $person  = new Woman(new $womenMouth());
    $person->say(); // 输出 女人说话
}