摘要: # from math import pi # # class Circle: # def __init__(self, r): # self.r = r # # @property # def perimeter(self): # return 2*pi*self.r # # @property 阅读全文
posted @ 2018-09-13 22:05 该搬砖啦 阅读(304) 评论(0) 推荐(0) 编辑