python物件導向的繼承

python物件導向的繼承

沒什麼可說的，繼承主要就是繼承父類的一些方法，代碼中很詳細

 

#!/usr/bin/env python #coding:utf-8class Father(object):#新式類    def __init__(self):        self.name='Liu'        self.FamilyName='Yan'            def Lee(self):        print '我是父類函數Lee'        def Allen(self):        print "我是父類函數Allen"        class Son(Father):    def __init__(self):        #Father.__init__(self)   #經典類執行父類建構函式        super(Son,self).__init__()  #新式類執行父類建構函式        self.name='Feng'            def Aswill(self): #子類新增函數        print 'Son.Bar'        def Lee(self):#重寫父類函數Lee        print '子類重寫了父類函數Lee'    s1=Son()print "繼承了父類的姓"+ s1.FamilyNameprint "重寫了父類的名字",s1.names1.Lee() #子類重寫了父類函數Lees1.Allen() #子類繼承了父類函數Allen

繼承多個類時的順序，經典類繼承是深度優先，是一個BUG, 新式類是廣度優先，應該是用新式類去定義類

新式類

 

class A(object): #新式類的寫法    def __init__(self):        print 'This is from A'        def test(self):        print 'This is test from A'class B(A):    def __init__(self):        print "This is from B"        class C(A):    def __init__(self):        print "This is from C"        def test(self):        print "This is test from C"                class D(B,C):    def __init__(self):        print 'this is D'        T1=D()T1.test()

 

經典類

 

class A():    def __init__(self):        print 'This is from A'        def test(self):        print 'This is test from A'class B(A):    def __init__(self):        print "This is from B"        class C(A):    def __init__(self):        print "This is from C"        def test(self):        print "This is test from C"                class D(B,C):    def __init__(self):        print 'this is D'        T1=D()T1.test()