day_5.02 py

'''
2018-5-2 18:43:54
设计4s店类
设计模式:
简单工厂模式(通过一个类的分离模式)

讨论耦合性的问题
类与类之间应该是低耦合性
通过有个 初始化 __init__ 来解耦

这样就是工厂模式
父类方法名就是接口,子类里面实现
(流程在基类里面定义好,然后在子类里面实现)
'''

class Store(object):
    def select_car(self):
        pass
    def order(self,car_type):
        return self.select_car(car_type)

class BMWCarStore(Store):
    def select_car(self,car_type):
        return BMWCarStore().select_car_by_type(car_type)


class CarStore(Store):
    def select_car(self,car_type):
        return Factory().select_car_by_type(car_type)

class   BMWFactory(object):
    def select_car_by_type(self,car_type):
        pass


class CarStore(object):
    def __init__(self):
        self.factory = Factory()
    def order(self,car_type):
        return self.factory(car_type)

class Factory(object):
    def select_car_by_type(car_type):
        if car_type=="索纳塔":
            return Suonata()
        elif car_type=="名图":
            return Mingtu()
        elif car_type=="ix35":
            return Ix35()

class Car(object):
    def move(self):
        print("车在移动")
    def music(self):
        print("车在播放音乐")
    def stop(self):
        print("车在停止,,,,,,")
        
class Suonata(Car):
    def move(self):
        print("车在移动")
    def music(self):
        print("车在播放音乐")
    def stop(self):
        print("车在停止,,,,,,")
        
class Mingtu(Car):
    pass
class Ix35(Car):
    pass

car_store =CarStore()
car =car_store.order("索纳塔")
car.move()
car.music()
car.stop()
bmw_store =BMWCarStore()
bmw =bmw_store.order("720li")