calender.asm

calender.c用C语言编写的万年历程序源代码。

//C语言写的万年历



#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#define X " Sun Mon Tue Wed Thu Fri Sat"

void menu()
{
  system("cls");
  printf("\nTHIS IS THE MENU OF THE PROGRAM !");
  printf("\nYOU CAN CHOOSE THE NUMBER FOR THE FUNCTIOM:");
  printf("\n\n");
  printf("1 Find the day by year-month-date.\n");
  printf("2 Find the year you input if the leap year.\n");
  printf("3 Print the calendar of the year you input.\n");
  printf("4 Exit.\n\n");
  printf("Input your choice:");
}

int getday(int year,int month,int date)
{
  int flag,s,i;
  int a[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
  int cont=0;
  flag=isleap(year);
  if(flag==1)
    a[2]++;
  for(i=1;i<month;i++)
  {
    cont=cont+a[i];
  }
  cont=cont+date;
  s=year+1+(year-1)/4+(year-1)/100+(year-1)/400+cont;
  return s%7;
}
int isleap(int year)
{
   if(year%4==0&&year%100||year%400==0)
	   return 1;
   else
	   return 0;
}
void print(int n)
{
 int i;
 for(i=0;i<n;i++) printf(" ");
}
int day(int year)
{
 long a,b;
 if(year<=2000)
 {
  a=2000-year;
  b=6-(a+a/4-a/100+a/400)%7; 
  return b;
 }
 else 
 {
  a=year-2000; 
  b=(a+1+(a-1)/4-(a-1)/100+(a-1)/400)%7+6; 
  return b%7;
 }
}
void printcalendar(int year)
{
   int i,j,k,m,n,f1,f2,d;
   int a[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
   printf("\nThe calendar of the year %d.\n\n",year);
   d=day(year);
   if(isleap(year)==1) 
	   a[2]++;
   for(i=1;i<=12;i+=2)
 {
  m=0; n=0; f1=0; f2=0;
  switch(i)
  {
  case 1:printf(" Januray 1   ");break;
  case 3:printf(" March 3     ");break;
  case 5:printf(" May 5       ");break;
  case 7:printf(" July 7     "); break;
  case 9:printf(" September 9 ");break;
  case 11:printf(" Nevember 11 ");break;
  }
  print(21); 
  switch(i+1)
  {
  case 2:printf(" February 2  "); break;
  case 4:printf(" April 4    "); break;
  case 6:printf(" June 6      "); break;
  case 8:printf(" August 8   ");  break;
  case 10:printf(" October 10  "); break;
  case 12:printf(" December 12"); break;
  }
  printf("\n"); 
  printf(X);  
  print(6);
  printf(X); 
  printf("\n");
  for(j=0;j<6;j++)
  {
   if(j==0)
   {
    print(d*4); 
    for(k=0;k<7-d;k++) 
    {
     printf("%4d",++m); 
    }
    print(6);
    d+=a[i]%7;
	d%=7;
    print(d*4); 
    for(k=0;k<7-d;k++)
    {
     printf("%4d",++n); 
    }
    printf("\n");
   }
   else
   {
    for(k=0;k<7;k++)
    {
     if(m<a[i])
     {
      printf("%4d",++m); 
	 }
     else
     {
      print(4);   
	 }
     if(m==a[i]) f1=1;
    }
    print(6); 
    for(k=0;k<7;k++)
    {
     if(n<a[i+1])
     {
      printf("%4d",++n);
	 }
     else
     {
      print(4); 
	 }
     if(n==a[i+1]) f2=1;
    }
    printf("\n"); 
    if(f1&&f2) break;
   }
  }
  d+=a[i+1]%7; 
  d%=7; 
  printf(" "); 
  for(k=0;k<27;k++) 
  {
	  printf("="); 
  }
  print(6);  
  printf(" ");  
  for(k=0;k<27;k++) 
  {
	  printf("=");
  }
  printf("\n"); 
  if(i==5)
  {
   printf("Press any key to others!");
   getch();
   system("cls");
  }
 }
}
void main()
{
 int choice;
 int year,month,date;
 int day,flag;
 char con;
 menu();
 scanf("%d",&choice);
 if(choice==1) 
    {
    r1:system("cls");
      printf("\nPlease input the year-month-date(XXXX,XX,XX):");
      scanf("%d,%d,%d",&year,&month,&date);
      day=getday(year,month,date);
	  if(day==0)
          printf("\n%d-%d-%d is Sunday!\n",year,month,date);
      if(day==1)
          printf("\n%d-%d-%d is Monday!\n",year,month,date);
	  if(day==2)
          printf("\n%d-%d-%d is Tuesday!\n",year,month,date);
	  if(day==3)
		  printf("\n%d-%d-%d is Wednesday!\n",year,month,date);
	  if(day==4)
		  printf("\n%d-%d-%d is Thursday!\n",year,month,date);
	  if(day==5)
		  printf("\n%d-%d-%d is Friday!\n",year,month,date);
	  if(day==6)
		  printf("\n%d-%d-%d is Saturday!\n",year,month,date);
      printf("\nContinue...(Y/N)");
      con=getch();
      if((con=='y')||(con=='Y'))
		  goto r1;
      if((con=='n')||(con=='N'))
        main();
    }
 if(choice==2)
 {
	 r2:system("cls");
	 printf("\nPlease input the year(XXXX):");
	 scanf("%d",&year);
     flag=isleap(year);
	 if(flag==1)
		 printf("\nThe year %d is leap year!\n",year);
	 if(flag==0)
		 printf("\nThe year %d is not leap year!\n",year);
     printf("\nContinue...(Y/N)");
      con=getch();
      if((con=='y')||(con=='Y'))
		  goto r2;
      if((con=='n')||(con=='N'))
        main();
 }
 if(choice==3)
 {
    r3:system("cls");
	 printf("\nPlease input the year(XXXX):");
	 scanf("%d",&year);
     printcalendar(year);
     printf("Continue...(Y/N)");
      con=getch();
      if((con=='y')||(con=='Y'))
		  goto r3;
      if((con=='n')||(con=='N'))
        main();
 }
 if(choice==4)
 {
	  system("cls");
	  printf("\nDo you want to Exit?(Y/N)");
      con=getch();
      if((con=='y')||(con=='Y'))
		  return;
      if((con=='n')||(con=='N'))
         main();
 }
}