#include<stdio.h>

int main()
{
    printf("一直晴天\n");
    return 0;
 }

#include<stdio.h>
#define PI 3.14
double calculateVolume(int height,int radius);
int main()
{
    int cHeight =0;
    int cRadius =0;
    double vomume=0.0;
    printf("请输入圆柱体的高度：\n");
    scanf("%d",&cHeight);
    printf("请输入圆柱体底面积的半径：\n");
    scanf("%d",&cRadius);
    volume = calculateVolume (cHeight,cRadius);
    printf("圆柱体的体积是:%f\n",volume);
    return 0; 
 } 
 double calculateVolume(int height,int radius )
 {
    double result =height *PI*radius;
    return result;
 }