python設計模式第七天【建造者模式】

標籤：acl   builder   cts   rect   pycharm   env   __init__   ping   floor   

1. 建造者模式UML圖

2.應用情境

（1）專門建立具有符合屬性的對象

3.代碼實現

 

#!/usr/bin/env python#! _*_ coding: UTF-8 _*_from abc import ABCMeta, abstractmethodclass House(object):    def __init__(self):        pass    def makeFloor(self, floor):        self.floor = floor    def makeWall(self, wall):        self.wall = wall    def getFloor(self):        return self.floor    def getWall(self):        return self.wallclass Builder(object):    __metaclass__ = ABCMeta    @abstractmethod    def makeFloor(self):        pass    @abstractmethod    def makeWall(self):        pass    @abstractmethod    def getHouse(self):        pass    @abstractmethod    def getHouse(self):        passclass PingFangBuilder(Builder):    def __init__(self):        self.house = House()    def makeFloor(self):        self.house.makeFloor("平房地板")    def makeWall(self):        self.house.makeWall("平房牆")    def getHouse(self):        return self.houseclass Director(object):    def __init__(self, builder):        self.__builder = builder    def makeHouse(self):        self.__builder.makeFloor()        self.__builder.makeWall()if __name__ == "__main__":    ‘‘‘使用最原始的方式‘‘‘    house = House()    house.makeFloor("地板")    house.makeWall("牆")    print house.getFloor()    print house.getWall()    ‘‘‘使用建造者模式‘‘‘    builder = PingFangBuilder()    director = Director(builder)    director.makeHouse()    house = builder.getHouse()    print house.getFloor()    print house.getWall()

結果：

/Users/liudaoqiang/PycharmProjects/numpy/venv/bin/python /Users/liudaoqiang/Project/python_project/day7_builder/builder_test.py地板牆平房地板平房牆Process finished with exit code 0

 

python設計模式第七天【建造者模式】