day_5.02 py

 1 '''
 2 2018-5-2 18:43:54
 3 设计4s店类
 4 设计模式:
 5 简单工厂模式(通过一个类的分离模式)
 6 
 7 讨论耦合性的问题
 8 类与类之间应该是低耦合性
 9 通过有个 初始化 __init__ 来解耦
10 
11 这样就是工厂模式
12 父类方法名就是接口,子类里面实现
13 (流程在基类里面定义好,然后在子类里面实现)
14 '''
15 
16 class Store(object):
17     def select_car(self):
18         pass
19     def order(self,car_type):
20         return self.select_car(car_type)
21 
22 class BMWCarStore(Store):
23     def select_car(self,car_type):
24         return BMWCarStore().select_car_by_type(car_type)
25 
26 
27 class CarStore(Store):
28     def select_car(self,car_type):
29         return Factory().select_car_by_type(car_type)
30 
31 class   BMWFactory(object):
32     def select_car_by_type(self,car_type):
33         pass
34 
35 
36 class CarStore(object):
37     def __init__(self):
38         self.factory = Factory()
39     def order(self,car_type):
40         return self.factory(car_type)
41 
42 class Factory(object):
43     def select_car_by_type(car_type):
44         if car_type=="索纳塔":
45             return Suonata()
46         elif car_type=="名图":
47             return Mingtu()
48         elif car_type=="ix35":
49             return Ix35()
50 
51 class Car(object):
52     def move(self):
53         print("车在移动")
54     def music(self):
55         print("车在播放音乐")
56     def stop(self):
57         print("车在停止,,,,,,")
58         
59 class Suonata(Car):
60     def move(self):
61         print("车在移动")
62     def music(self):
63         print("车在播放音乐")
64     def stop(self):
65         print("车在停止,,,,,,")
66         
67 class Mingtu(Car):
68     pass
69 class Ix35(Car):
70     pass
71 
72 car_store =CarStore()
73 car =car_store.order("索纳塔")
74 car.move()
75 car.music()
76 car.stop()
77 bmw_store =BMWCarStore()
78 bmw =bmw_store.order("720li")

 

posted @ 2018-05-02 20:15  我想喝杨枝甘露~  阅读(153)  评论(0编辑  收藏  举报