python 类继承

python 抽象类，类继承：

class A(object):
    def fun1(self):
        '''
        抽象方法1
        :return:
        '''

    def fun2(self):
        '''
        抽象方法2
        :return:
        '''


class A1(A):
    def fun1(self):
        print("A1.fun1")

    def fun2(self):
        print("A1.fun2")


class A2(A):
    def fun1(self):
        print("A2.fun1")

    def fun2(self):
        print("A2.fun2")


a1 = A1()
a1.fun1()
# A1.fun1

a2 = A2()
a2.fun1()
# A2.fun1