实验 计算圆柱体体积

/*利用循环计算n个圆柱体体积*/
#include<stdio.h>
int main(void)
{
int i,n;
double r,v,h;
double cylinder(double r,double h);/*定义和调用函数cylinder(r,h)计算体积*/

printf("enter n:");
scanf("%d",&n);

for(i=1;i<=n;i++){              /*for语句循环计算n个圆柱体体积*/
printf("Enter r and h:\n");

scanf("%lf%lf",&r,&h);

if((r<=0)||(h<=0))/*或语句*/
{
printf("sorry");
}
else{
v=cylinder(r,h);
printf("V=%.3f\n",v);
}
}

return 0;
}
double cylinder(double r,double h)
{
double result;

result=3.14*r*r*h;

return result;
}