C语言 -> 结构体

 1 #include <stdio.h>
 2 struct
 3 {
 4     int year;
 5     int month;
 6     int day;    
 7 }date;
 8  
 9  int main()
10  {
11      int i,days;
12      int day_tab[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
13      //printf("input year,month,day:");
14      scanf("%d %d %d",&date.year,&date.month,&date.day);
15      days=0;
16      for(i=1;i<date.month;i++)
17          days+=day_tab[i];
18      days=days+date.day;
19      //闰年判断 
20      if((date.year%4==0 && date.year%100!=0 || date.year%400==0) && date.month>=3)
21          days=days+1;
22      //printf("%d/%d is the %dth day in %d.\n",date.month,date.day,days,date.year);
23      printf("%d",days);
24      return 0;
25  }