# 定义 Nowcoder 父类 class Nowcoder: def __init__(self, name, ID, num): self.name = name self.ID = ID self.num = num def printInformation(self): print(f"{self.name}'s ID is {self.ID}, and his or her number of signing in is {self.num}.") # 子类 class IT(Nowcoder): def __init__(self, name, ID, num...