rili.c

C语言源代码 万年历

#include <stdio.h>
int IsLeapYear(int);
main()
{
 int i;
 int day;
 int year;
 int temp;
 int temp_i;
 long int Year_days = 0;
 int Year_Start = 1;
 int Per_Year_Days;
 int month_day[]={31,28,31,30,31,30,31,31,30,31,30,31,29};

 printf("Please enter the year: ");
 scanf("%d",&year);

 while(Year_Start < year)
 {
  if( IsLeapYear( Year_Start ) )
   Per_Year_Days = 366;
  else
   Per_Year_Days = 365;

  Year_days = Year_days + Per_Year_Days;
  Year_Start++;
 }

 for( temp = 1; temp <=12; temp++ )
 {
  switch( temp )
  {
   case 1:
    printf("    January(%d)\n",year);
    break;
   case 2:
    printf("    February(%d)\n",year);
    break;
   case 3:
    printf("    March(%d)\n",year);
    break;
   case 4:
    printf("    April(%d)\n",year);
    break;
   case 5:
    printf("    May(%d)\n",year);
    break;
   case 6:
    printf("    June(%d)\n",year);
    break;
   case 7:
    printf("    July(%d)\n",year);
    break;
   case 8:
    printf("    August(%d)\n",year);
    break;
   case 9:
    printf("    September(%d)\n",year);
    break;
   case 10:
    printf("    October(%d)\n",year);
    break;
   case 11:
    printf("   November(%d)\n",year);
    break;
   case 12:
    printf("   December(%d)\n",year);
    break;
  }
  i = Year_days % 7;
  printf("Mon Tue Wed Thu Fri Sat Sun\n");
  if( i != 0 )
   for( temp_i = 0; temp_i < i; temp_i++)
    printf("    ");
  day = 1;
  if( IsLeapYear(year) && temp == 2)
   while( day <= month_day[12] )
   {
    if( day >1 )
     if( Year_days % 7 == 0 )
      printf("\n");
    if( day >= 10 )
     printf("%d  ",day);
    else
     printf("%d   ",day);
    Year_days++;
    day++;
   }

  else
   while (day <= month_day[temp-1])
   {
    if( day > 1 )
     if( Year_days % 7 == 0 )
      printf("\n");
    if( day >=10 )
     printf("%d  ",day);
    else
     printf("%d   ",day);
    Year_days++;
    day++;
   }
  printf("\n");
  if( getch() == 'q' )
   exit(0);
 }
 getch();
}


int IsLeapYear( int year )
{
 if ((year %4 == 0) && (year % 100 != 0) ||
    (year % 400 == 0) )
  return 1;
 else
  return 0;
}
/******************************************************************/