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);
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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);
本文标题:第三次作业1
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