Python设计模式之原型模式实例详解

#!/usr/bin/env python# -*- coding:utf-8 -*-__author__ = 'Andy'"""大话设计模式设计模式――原型模式原型模式(Prototype Pattern):用原型实例指定创建对象的种类,并且通过拷贝这些原型创建新的对象原型模式是用场景:需要大量的基于某个基础原型进行微量修改而得到新原型时使用"""from copy import copy, deepcopy# 原型抽象类class Prototype(object):  def clone(self):    pass  def deep_clone(self):    pass# 工作经历类class WorkExperience(object):  def __init__(self):    self.timearea = ''    self.company = ''  def set_workexperience(self,timearea, company):    self.timearea = timearea    self.company = company# 简历类  class Resume(Prototype):  def __init__(self,name):    self.name = name    self.workexperience = WorkExperience()  def set_personinfo(self,sex,age):    self.sex = sex    self.age = age    pass  def set_workexperience(self,timearea, company):    self.workexperience.set_workexperience(timearea, company)  def display(self):    print self.name    print self.sex, self.age    print '工作经历',self.workexperience.timearea, self.workexperience.company  def clone(self):    return copy(self)  def deep_clone(self):    return deepcopy(self)if __name__ == '__main__':  obj1 = Resume('andy')  obj2 = obj1.clone() # 浅拷贝对象  obj3 = obj1.deep_clone() # 深拷贝对象  obj1.set_personinfo('男',28)  obj1.set_workexperience('2010-2015','AA')  obj2.set_personinfo('男',27)  obj2.set_workexperience('2011-2017','AA') # 修改浅拷贝的对象工作经历  obj3.set_personinfo('男',29)  obj3.set_workexperience('2016-2017','AA') # 修改深拷贝的对象的工作经历  obj1.display()  obj2.display()  obj3.display()