组合模式(python)
组合模式：针对“部分-整体”的层次结构，使得用户对单个对象和组合对象的使用具有一致性。
#encoding=utf-8
#
#by panda
#组合模式
def printInfo(info):
print unicode(info, 'utf-8').encode('gbk')
#Component：公司抽象类
class Company:
name = ''
def __init__(self, name):
self.name = name
def Add(self, company):
pass
def Remove(self, company):
pass
def Display(self, depth):
pass
def LineOfDuty(self): #履行职责
pass
#Composite：公司类
class ConcreteCompany(Company):
childrenCompany = None
def __init__(self, name):
Company.__init__(self,name)
self.childrenCompany = []
def Add(self, company):
self.childrenCompany.append(company)
def Remove(self, company):
self.childrenCompany.remove(company)
def Display(self, depth):
printInfo('-'*depth + self.name)
for component in self.childrenCompany:
component.Display(depth+2)
def LineOfDuty(self): #履行职责
for component in self.childrenCompany:
component.LineOfDuty()
#Leaf：具体职能部门
class HRDepartment(Company):
def __init__(self, name):
Company.__init__(self,name)
def Display(self, depth):
printInfo('-'*depth + self.name)
def LineOfDuty(self): #履行职责
printInfo('%s/t员工招聘培训管理' % self.name)
#Leaf：具体职能部门
class FinanceDepartment(Company):
def __init__(self, name):
Company.__init__(self,name)
def Display(self, depth):
printInfo('-'*depth + self.name)
def LineOfDuty(self): #履行职责
printInfo('%s/t公司财务收支管理' % self.name)
def clientUI():
root = ConcreteCompany('北京总公司')
root.Add(HRDepartment('总公司人力资源部'))
root.Add(FinanceDepartment('总公司财务部'))
comp = ConcreteCompany('华东分公司')
comp.Add(HRDepartment('华东分公司人力资源部'))
comp.Add(FinanceDepartment('华东分公司财务部'))
root.Add(comp)
comp1 = ConcreteCompany('南京办事处')
comp1.Add(HRDepartment('南京办事处人力资源部'))
comp1.Add(FinanceDepartment('南京办事处财务部'))
comp.Add(comp1)
comp2 = ConcreteCompany('杭州办事处')
comp2.Add(HRDepartment('杭州办事处人力资源部'))
comp2.Add(FinanceDepartment('杭州办事处财务部'))
comp.Add(comp2)
printInfo('-------公司结构图-------')
root.Display(1)
printInfo('/n-------职责-------')
root.LineOfDuty()
return
if __name__ == '__main__':
clientUI();
类图：
摘自：ponder008的专栏
