Python面向对象编程-三大特性-继承-多继承

class Flyable:
    def fly(self):
        print("I can fly.")

class Swimmable:
    def swim(self):
        print("I can swim.")

class Duck(Flyable, Swimmable):
    pass

# 创建一个 Duck 对象
d = Duck()

# 调用子类的方法
d.fly()
d.swim()