class human(object):    #定义一个父类
    def __init__(self, name):
        self.__name = name
        self.__walk = True
    def get_name(self):
        return self.__name
    def set_name(self, name):
        self.__name = name
    def walk(self):
        if self.__walk == True:
            print("human walks")
        else:
            print("human not walks")
    def set_walk(self, walk):
        self.__walk = walk
class man(human):   #定义一个子类，继承human类
    def __init__(self, name, has_wife):
        super(man, self).__init__(name)
        self.__has_wife = has_wife
    def marry(self):
        if self.__has_wife == "y":
            print("married")
        else:
            print("not yet")
    def smoke(self):
        print("man smoke")
    def drink(self):
        print("man drink")
class woman(human):     #定义一个子类，继承human类
    def __init__(self, name, has_husband):
        super(woman, self).__init__(name)
        self.__has_husband = has_husband
    def marry(self):
        if self.__has_husband == "y":
            print("married")
        else:
            print("not yet")
    def shopping(self):
        print("woman shopping")
    def make_up(self):
        print("woman make up")
print("begin")
human_a = human("kd")
print(human_a.get_name())
human_a.set_name("dg")
print(human_a.get_name())
human_a.walk()
human_a.set_walk(False)
human_a.walk()
print("\n")
human_b = human("kt")
print(human_b.get_name())
human_b.walk()
print("\n")
human_c = man("kt", "y")
print(human_c.get_name())
human_c.walk()
human_c.marry()
human_c.drink()
human_c.smoke()
print("\n")
human_d = woman("sk", "n")
print(human_d.get_name())
human_d.walk()
human_d.marry()
human_d.shopping()
human_d.make_up()   

输出结果：

begin
kd
dg
human walks
human not walks
kt
human walks
kt
human walks
married
man drink
man smoke
sk
human walks
not yet
woman shopping
woman make up