python---多继承

class A(object): #新式类
    def eat(self):    #有个eat方法
        print("a eat")
    pass

class B(A):      #B继承了A
    # def eat(self):
    #     print("b eat")
    pass


class C(A):   #C也是继承了A
    def eat(self):
        print("c eat")
    pass


class D(B,C):   #D继承了B,C
    pass

d = D()

d.eat()
print(D.__mro__)  #查看继承  怎么去找
#mro