实验二利用循环计算多个圆柱体体积

/*计算求n个圆柱的体积*/
#include<stdio.h>
int main(void)
{
int i,n,r,h;/*r为圆柱底面的半径，h为原著的高*/
double v;/*v为原著的体积*/
printf("the enter n:");
scanf("%d",&n);
for(i=1;i<=n;i++){
printf("the enter r:");
scanf("%d",&r);
printf("the enter h:");
scanf("%d",&h);
if(r<=0||r<=0)
printf("The Enter is wrong");
else
v=3.14*r*r*h;
printf("v=%.2f\n",v);
}
return 0;
}