首先,我们需要定义一个抽象基类Shape,包含计算表面积和体积的抽象方法。然后,我们需要定义两个子类:Cylinder和Cube,分别继承Shape类,并实现相应的方法。 以下是代码实现: ```python from abc import ABC, abstractmethod import math class Shape(ABC): @abstractmethod def barea(self): pass @abstractmethod def vol(self): pass class Cylinder(Shape): def __init__(self, radius): self.__radius = radius self.__height = 10 # 默认高度为10 def barea(self): return 2 * math.pi * self.__radius * (self.__radius + self.__height) def vol(self): return math.pi * self.__radius 2 * self.__height def print(self): print(f"圆柱体的半径为:{self.__radius},高为:{self.__height}") class Cube(Shape): def __init__(self, length, width, height): self.__length = length self.__width = width self.__height = height def barea(self): return 2 * (self.__length * self.__width + self.__length * self.__height + self.__width * self.__height) def vol(self): return self.__length * self.__width * self.__height def print(self): print(f"长方体的长为:{self.__length},宽为:{self.__width},高为:{self.__height}") ``` 在这个实现中,我们使用了Python的抽象基类(Abstract Base Class,简称ABC)来定义Shape类,并使用@abstractmethod装饰器来定义抽象方法。Cylinder和Cube类分别继承了Shape类,并实现了barea和vol方法。我们还为Cylinder和Cube类添加了print方法,用于输出相应的私有属性。 [2024-06-13 19:05:45 | AI写代码神器 | 472点数解答]