第三次作业1

2018-10-25 本文已影响0人 zealot_bbc8

int r = 5;
double pi = 3.14;
double mj = pi * r * r;
double zc = 2 * pi * r;
Console.WriteLine("圆的半径是{0},面积是{1},周长是{2}", r, mj, zc);

Console.ReadKey();