#include <stdio.h>
#define PI 3.14159
void main()
{
    double zhu(double x,double y);
    double zhui(double x,double y);
    double r,h,v1,v2,sum;
    printf("请输入圆锥体、圆柱体的半径和高:");
    scanf("%lf%lf",&r,&h);
    do
    {v1=zhu(r,h);
    v2=zhui(r,h);
    sum=v1+v2;
    printf("圆锥体体积+圆柱体体积=%lf\n",sum);}
    while(r!=0);
}
double zhu(double x,double y)
{
    double v1;
    v1=PI*x*x*y;
    return (v1);
}
double zhui(double x,double y)
{
    double v2;
    v2=PI*x*x*y/3;
    return(v2);
}

这是什么意思  我想知道怎样才可以重复输入

要重复输入半径和高直到半径为0时结束

嗯嗯  现在我知道周末错了  谢谢了哈