組合模式(python)

組合模式：針對“部分-整體”的階層，使得使用者對單個對象和組合對象的使用具有一致性。

#encoding=utf-8##by panda#組合模式def printInfo(info):    print unicode(info, 'utf-8').encode('gbk')#Component：公司抽象類別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): #履行職責        pass     #Composite：公司類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): #履行職責        for component in self.childrenCompany:            component.LineOfDuty()        #Leaf：具體職能部門class HRDepartment(Company):       def __init__(self, name):         Company.__init__(self,name)         def Display(self, depth):        printInfo('-'*depth + self.name)        def LineOfDuty(self): #履行職責        printInfo('%s\t員工招聘培訓管理' % self.name) #Leaf：具體職能部門class FinanceDepartment(Company):        def __init__(self, name):        Company.__init__(self,name)            def Display(self, depth):        printInfo('-'*depth + self.name)        def LineOfDuty(self): #履行職責        printInfo('%s\t公司財務收支管理' % self.name)def clientUI():        root = ConcreteCompany('北京總公司')    root.Add(HRDepartment('總公司人力資源部'))    root.Add(FinanceDepartment('總公司財務部'))        comp = ConcreteCompany('華東分公司')    comp.Add(HRDepartment('華東分公司人力資源部'))    comp.Add(FinanceDepartment('華東分公司財務部'))    root.Add(comp)        comp1 = ConcreteCompany('南京辦事處')    comp1.Add(HRDepartment('南京辦事處人力資源部'))    comp1.Add(FinanceDepartment('南京辦事處財務部'))    comp.Add(comp1)        comp2 = ConcreteCompany('杭州辦事處')    comp2.Add(HRDepartment('杭州辦事處人力資源部'))    comp2.Add(FinanceDepartment('杭州辦事處財務部'))    comp.Add(comp2)            printInfo('-------公司結構圖-------')    root.Display(1)        printInfo('\n-------職責-------')    root.LineOfDuty()    returnif __name__ == '__main__':    clientUI();

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