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()
  return
if __name__ == '__main__':
  clientUI();