302班

#include <stdio.h>

struct time
{
  int hour;
  int minute;
  int second;
};
struct date
{
   int year;
   int month;
   int day;
};
struct dateAndTime
{
   struct date sdate;
   struct time stime;
};
struct dateAndTime clockKeeper(struct dateAndTime s)
{
 struct dateAndTime nextTime;
    struct time timeUpdate(struct time now);
 struct date dateUpdate(struct date today);
 int i=s.stime.hour;
    nextTime.stime=timeUpdate(s.stime);
 nextTime.sdate=s.sdate;
 if(i!=0&&(s.stime.hour==0))
 {
   nextTime.sdate=dateUpdate(s.sdate);
 }
 
 return nextTime;  
}
//日期更新
struct date dateUpdate(struct date today)
{ 
  int numberOfDays(struct date d);
  struct date tomorrow;
  if(today.day!=numberOfDays(today))
  { 
 tomorrow.day=today.day+1;
 tomorrow.month=today.month;
 tomorrow.year=today.year;
  }
  else if(today.month==12)
  {
     tomorrow.day=1;
  tomorrow.month=1;
  tomorrow.year=today.year+1;
  }
  else
  {
     tomorrow.day=1;
  tomorrow.month=today.month+1;
  tomorrow.year=today.year;
  }
  return tomorrow;
}
  //查找一個月日期數的函數
  int numberOfDays(struct date d)
  {
     int days;
  int isLeapYear(struct date d);
  const int daysPerMonth[12]={31,28,31,30,31,30,31,31,30,31,30,31};
  if(isLeapYear(d)==1&&d.month==2)
  {
    days=29;
  }
  else
  {
    days=daysPerMonth[d.month-1];
  }
  return days;
  }
  //判定是不是瑞年
  int isLeapYear(struct date d)
  {
     int leapYearFlag;
  if((d.year%4==0&&d.year%100!=0)||d.year%400==0)
  {
        leapYearFlag=1;
  }
  else
   leapYearFlag=0;
  return leapYearFlag;
  }
//時間更新
  struct time timeUpdate(struct time now)
  {
    ++now.second;
 if(now.second==60)
 {
    now.second=0;
    ++now.minute;
    if(now.minute==60)
    {
   now.minute=0;
      ++now.hour;
   if(now.hour==24)
   {
     now.hour=0;
   }
    }  
 }
 return now;
  }
int main(void)
{
 struct dateAndTime s1={{2006,05,9},{23,59,59}};
 struct date today={2006,2,28};
 struct date tomorrow=dateUpdate(today);
 printf("%i%i%i\n",tomorrow.year,tomorrow.month,tomorrow.day);
 struct dateAndTime clockKeeper(struct dateAndTime s);
 
 struct dateAndTime upToNow=clockKeeper(s1);
 printf("The pre dateAndTime is %.4i/%.2i/%.2i  %.2i:%.2i:%.2i.\n",s1.sdate.year,s1.sdate.month,s1.sdate.day,s1.stime.hour,s1.stime.minute,s1.stime.second);
 printf("The pre dateAndTime is %.4i/%.2i/%.2i  %.2i:%.2i:%.2i.\n",upToNow.sdate.year,upToNow.sdate.month,upToNow.sdate.day,upToNow.stime.hour,upToNow.stime.minute,upToNow.stime.second);
    return 0;
}
測試結果：

另一個測試：

不過這里還存在一定的問題，就是日期不能更新，怪。還沒發現問題是什么