作者：李润锴         更新时间：2023-12-24 15:31          浏览：491次         点赞：1次          热度：20

class birdClass(): def fly(self): print("飞") def eat(self): print("吃") def sing(self): print("鸣叫") class henClass(birdClass): def sing(self): print("鸡叫") class gooseClass(birdClass): def sing(self): print("鹅叫") ji = henClass() ji.sing() e = gooseClass() e.sing()