Question

用C#如何编写程序计算球，圆柱和圆锥的表面积和体积？

Answer 1

//球体表面积A=4π*R^2,体积V=4/3π*R^3

Console.WriteLine("请输入圆的半径R");

double  R=Convert.ToInt32(Console.ReadLine());

double round = 4 * Math.PI * R * R;

double volume = 4 * Math.PI * R * R * R / 3;

Console.WriteLine("圆的的表面积是{0}；圆的体积是{1}",round,volume);

//圆锥表面积A=1/2*s*L+π*R^2,体积V=1/3*S*H=1/3π*R^2*H

Console.WriteLine("请输入圆锥的底面圆半径R");

double R1 = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("请输入圆锥母线长s");

double s = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("请输入圆锥的底面周长L");

double l = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("请输入圆锥高H");

double H = Convert.ToInt32(Console.ReadLine());

double round1 = 0.5*s*l+Math.PI*R1*R1;

double volume1 = Math.PI*R1*R1*H/3;

Console.WriteLine("圆的的表面积是{0}；圆的体积是{1}", round1, volume1);

//圆柱表面积A=L*H+2*S=2π*R*H+2π*R^2,体积V=S*H=π*R^2*H

//(L--底面周长,H--柱高,S--底面面积,R--底面圆半径)

Console.WriteLine("请输入H--柱高");

double H2 = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("请输入R--底面圆半径");

double R2 = Convert.ToInt32(Console.ReadLine());

double A = 2 * Math.PI * R2 * H2 + 2 * Math.PI * R2 * R2;

double V = Math.PI * R2 * R2 * H2;

Console.WriteLine("圆柱表面积A{0},圆柱表面积V{1}",A,V);

Console.ReadKey();