設計模式之python版（九）–建造者模式

建造者模式：

應用特性：同類化創造相同模組，避免遺漏固有屬性

結構特性：把創造的流程正常化，每個流程的具體任務可以自訂化，建造過程批量化。

#!/usr/bin/env python  #encoding: utf-8class product:    def __init__(self):        self.parts = []        def add(self, strings):        self.parts.append(strings)            def show(self):        print 'Product Create:'        for part in self.parts:            print partclass base:    def __init__(self):        pass        def buildA(self):        pass        def buildB(self):        pass        def getRault(self):        pass        class child1(base):    def __init__(self):        self.pdt = product()        def buildA(self):        self.pdt.add('child A')        def buildB(self):        self.pdt.add('child B')        def getRault(self):        return self.pdt        class child2(base):    def __init__(self):        self.pdt = product()        def buildA(self):        self.pdt.add('child X')        def buildB(self):        self.pdt.add('child Y')        def getRault(self):        return self.pdt    class derictor:    def __init__(self):        pass        def construct(self, chld):        chld.buildA()        chld.buildB()        if '__main__' == __name__:    dct = derictor()    chld1 = child1()    chld2 = child2()    dct.construct(chld1)    prod1 = chld1.getRault()    prod1.show()        dct.construct(chld2)    prod2 = chld2.getRault()    prod2.show() 

結果：

Product Create:child Achild BProduct Create:child Xchild Y