简单C语言程序

 #include<stdio.h>

 int main(void)
 {
     /*
         计算两个时间的时间差
     */
     int hour1, minute1;
     int hour2, minute2;

     printf("请输入第一个时间：");
     scanf_s("%d:%d", &hour1, &minute1);
     printf("请输入第二个时间：");
     scanf_s("%d:%d", &hour2, &minute2);

     int t1 = hour1 *  + minute1;
     int t2 = hour2 *  + minute2;

     int t = t1 - t2;

     printf("时间差是%d小时%d分钟。\n", t / , t % );

     return ;
 }

 #include<stdio.h>

 int main(void)
 {
     /*
         计算两个时间的时间差
     */
     int hour1, minute1;
     int hour2, minute2;

     printf("请输入第一个时间：");
     scanf_s("%d:%d", &hour1, &minute1);
     printf("请输入第二个时间：");
     scanf_s("%d:%d", &hour2, &minute2);

     int t1 = ;
     int t2 = ;

     if (minute1 >= minute2)
     {
         t1 = hour1 - hour2;
         t2 = minute1 - minute2;
     }
     else
     {
         t1 = hour1 -  - hour2;
         t2 = minute1 +  - minute2;
     }

     printf("时间差是%d小时%d分钟。\n", t1, t2);

     return ;
 }