编写程序计算长方体的体积python_编写程序一个长方体的长宽高记那个长方体的表面积和体积 要用浮点型数据处理?...

python 版本

class Cuboid:

def __init__(self, length, width, high):

# data must > 0

if length <= 0:

raise ValueError("length <= 0!")

if width <= 0:

raise ValueError("width <= 0!")

if high <= 0:

raise ValueError("high <= 0!")

# save the data

self.__length = length

self.__width = width

self.__high = high

# caculate and save the surface area and volume

self.__area = float(2 * (self.__length * self.__width + self.__width * self.__high + self.__high * self.__length))

self.__volume = float(self.__length * self.__width * self.__high)

def get_area(self):

return self.__area

def get_volume(self):

return self.__volume

if __name__ == '__main__':

length = fl