python のクラス - Qiita

class Rectangle: def __init__(self, width, height): self.width = width self.height = height def area(self): return self.width * self.height def main(): rectagle = Rectangle(10, 20) print(f'The value of width is {rectangle.width}') print(f'The value of height is {rectangle.height}') if __name__ '__main__': main()