3编写程序时我们常常需要输出调试信息，但正式使用程序时我们希望不要输出调试信息。若将调试信息删除，不但工作量大，而且容易出现错误。如果程序有问题需要调试，我们还得将调试信息再加上，未免过于麻烦。这时候我们可以用#ifdef指令，控制调试信息的显示或隐藏。接下来我们编写一个程序，求一个长方体的蓄水池可以用圆柱体的水桶多少桶注满。要求输入长方体蓄水池的长、宽、高和水桶的高、底部半径，输出所需水桶的数量，用#ifdet指令控制调试信息的显示和隐藏。他 序号e 重点内容e 要求一 时间要求一 1e #ifdef指令e 1.使用#ifdef DEBUG...#endife 2.定义带参数的宏定义PI及DEBUG← 35e 2- 主函数e 1主函数输入输入水池的长、宽、高←2,输入水桶的高、底部半径< 3.输出水池的体积、水桶的体积、水池注满时所需的水桶的数量 10’ e

#ifdef DEBUG
#include <stdio.h>
#endif

#define PI 3.1415926
#define DEBUG

int main() {
double length, width, height, bucketHeight, bucketRadius;
double poolVolume, bucketVolume;
int bucketNum;

printf("Please enter the length, width, and height of the pool: ");
scanf("%lf %lf %lf", &length, &width, &height);
printf("Please enter the height and bottom radius of the bucket: ");
scanf("%lf %lf", &bucketHeight, &bucketRadius);

#ifdef DEBUG
printf("length = %lf, width = %lf, height = %lf\n", length, width, height);
printf("bucketHeight = %lf, bucketRadius = %lf\n", bucketHeight, bucketRadius);
#endif

poolVolume = length * width * height;
bucketVolume = PI * bucketRadius * bucketRadius * bucketHeight;

#ifdef DEBUG
printf("poolVolume = %lf, bucketVolume = %lf\n", poolVolume, bucketVolume);
#endif

bucketNum = (int)(poolVolume / bucketVolume);

printf("The pool volume is %lf, the bucket volume is %lf.\n", poolVolume, bucketVolume);
printf("It takes %d buckets to fill the pool.\n", bucketNum);

return 0;
}