class News(Article): def __init__(self,title, pub_date, body, expried): Article.__init__(self,title,pub_date,body) # 子类调用父类的方法，需要加个self
问题已经修复了，感谢你的反馈哦
class News(Article): def __init__(self,title, pub_date, body, expried): Article.__init__(self,title,pub_date,body) # 子类调用父类的方法，需要加个self