python开发基础(五)面向对象--继承

# 继承

class Dad:

    money = 100

    def __init__(self, name):
        print('Dad')
        self.name = name

    def hit(self):
        print('%s在打儿子' % self.name)


class Son(Dad):

    money = 10000000

    def __init__(self, name, age):
        self.name = name
        self.age = age

    def hit(self):
        print('来自Class Son')


d1 = Dad('Dad')

s1 = Son('son', 20)
s2 = Son('alex', 30)

# print(Son.money)
s2.hit()

# d1.hit()

# print(Son.money)
#
# print(s1)

# 接口继承

import abc  # 接口类


class Allfile(metaclass=abc.ABCMeta):  # 父类接口继承原则
    """
    接口类
    没必要写逻辑
    不用实例化
    只是为了规范子类
    """

    @abc.abstractmethod
    def read(self):
        print('All read')

        pass

    @abc.abstractmethod
    def write(self):
        print('All write')

        pass


class Disk(Allfile):

    def read(self):
        print('Disk read')

    def write(self):
        print('Disk write')

    pass


class Cd(Allfile):

    def read(self):
        print('Cd read')

    def write(self):
        print('Cd write')

    pass


class Mem(Allfile):

    def read(self):
        print('Mem read')

    def write(self):
        print('Mem write')

    def other(self):
        print('Mem other')

    pass


m1 = Mem()

m1.read()
m1.write()
m1.other()

# 继承顺序


class A:

    def print(self):
        print('A')

    pass


class B(A):

    def print(self):
        print('B')

    pass


class C(A):

    def print(self):
        print('C')

    pass


class D(B):

    def print(self):
        print('D')

    pass


class E(C):

    def print(self):
        print('E')

    pass


class F(D, E):

    def print(self):
        print('F')

    pass


f1 = F()
f1.print()

print(F.__mro__)  # 继承类顺序