Python实现的建造者模式示例

#!/usr/bin/python# -*- coding:utf-8 -*-#建造者基类class PersonBuilder():  def BuildHead(self):    pass  def BuildBody(self):    pass  def BuildArm(self):    pass  def BuildLeg(self):    pass#胖子class PersonFatBuilder(PersonBuilder):  type = u'胖子'  def BuildHead(self):    print u'构建%s的头' % self.type  def BuildBody(self):    print u'构建%s的身体' % self.type  def BuildArm(self):    print u'构建%s的手' % self.type  def BuildLeg(self):    print u'构建%s的脚' % self.type#瘦子class PersonThinBuilder(PersonBuilder):  type = u'瘦子'  def BuildHead(self):    print u'构建%s的头' % self.type  def BuildBody(self):    print u'构建%s的身体' % self.type  def BuildArm(self):    print u'构建%s的手' % self.type  def BuildLeg(self):    print u'构建%s的脚' % self.type#指挥者class PersonDirector():  pb = None;  def __init__(self, pb):    self.pb = pb  def CreatePereson(self):    self.pb.BuildHead()    self.pb.BuildBody()    self.pb.BuildArm()    self.pb.BuildLeg()def clientUI():  pb = PersonThinBuilder()  pd = PersonDirector(pb)  pd.CreatePereson()  pb = PersonFatBuilder()  pd = PersonDirector(pb)  pd.CreatePereson()  returnif __name__ == '__main__':  clientUI();