python_面向对象小试题

打印啥？

class Animal(object):
    hobby = "eat"

    def run(self):
        print(self.hobby)
        return self.hobby

class Dog(Animal):
    hobby = "sleep"

dog = Dog()
print(dog.hobby)
print(dog.run())  

答案

sleep
sleep
sleep

考点：

　　面向对象

　　继承

　　内置变量

　　返回值