代码: r=29 area = 3.1415*r*r print(area) print("{:.2f}".format(area)) 结果: 相关文章: 2022-12-23 2021-11-23 2021-11-27 2022-01-10 2022-03-01 2021-05-23 2022-01-10 2022-12-23