大话设计模式-抽象工厂模式

//抽象工厂模式
class LeiFeng {
	public function sweep() {
		echo '扫地<br/>';
	}

	public function wash() {
		echo '洗衣<br/>';
	}

	public function buyRice() {
		echo '买米<br/>';
	}
}

class Undergraduate extends LeiFeng {
}

class Volunteer extends LeiFeng {
}


interface IFactory {
	function createLeiFeng();
}

class UndergraduateFactory implements IFactory {
	public function createLeiFeng() {
		return new Undergraduate();
	}
}

class VolunteerFactory implements IFactory {
	public function createLeiFeng() {
		return new Volunteer();
	}
}

$factory = new UndergraduateFactory();
$student = $factory->createLeiFeng();

$student->buyRice();
$student->sweep();
$student->wash();