#include
#include
void main() {
float r,h;
float pi=3.14159; //圆周率
float l,a,s,v;
printf("Please input r h:\n");
scanf("%f %f",&r,&h);
l = 2.0 * pi * r; //周长
a = pi * r * r; // 圆面积
s = 4.0 * pi * r *r; // 球面积
v = a * h; // 圆柱体积
printf("%.2f %.2f %.2f %.2f\n",l,a,s,v);
}
Please input r h:
3 6
18.85 28.27 113.10 169.65