Python设计模式之代理模式实例详解

#!/usr/bin/env python# -*- coding:utf-8 -*-__author__ = 'Andy'"""大话设计模式设计模式――代理模式代理模式(Proxy Pattern):为其他对象提供一种代理以控制对这个对象的访问实现:戴励 替 卓贾易 送礼物给 娇娇模型:#公共接口类class InterFace:  def request(self):    pass#真实类class RealSubject(InterFace):  def request(self):    print 'RealSubject request'#代理类 调用真实类的内部方法class ProxySubject(InterFace)  def request(self):    self.real = RealSubject()    self.real.request()"""# 送礼物接口class GiveGift(object):  # 送洋娃娃  def GiveDolls(self):    pass  # 送花  def GiveFlowers(self):    pass  # 送巧克力  def GiveChocolate(self):    pass# 被追求者类class SchoolGirl(object):  def __init__(self, name):    self.name = name# 追求者类class Pursuit(GiveGift):  def __init__(self, Girl):    self.Girl = Girl  def GiveDolls(self):    print self.Girl.name, '送你洋娃娃'  def GiveFlowers(self):    print self.Girl.name, '送你花'  def GiveChocolate(self):    print self.Girl.name, '送你巧克力'# 代理类class Proxy(GiveGift):  def __init__(self, Girl):    self.proxy = Pursuit(Girl)  # 送洋娃娃  def GiveDolls(self):    self.proxy.GiveDolls()  # 送花  def GiveFlowers(self):    self.proxy.GiveFlowers()  # 送巧克力  def GiveChocolate(self):    self.proxy.GiveChocolate()if __name__ == '__main__':  jiaojiao = SchoolGirl('jiaojiao')  daili = Proxy(jiaojiao)  daili.GiveDolls()  daili.GiveFlowers()  daili.GiveChocolate()