pwgqk8e9z/源代码.c

#include <stdio.h>
int how(int A)//计算公元1月1号到输入年份之前的总天数的函数
{
	int i,s=0,day;
	for (i=1;i<=A-1;i++)
	{    
		if (i%4==0 && i%100!=0 || i%400==0)
			day=366;
		else
			day=365;
		s=s+day;}
	return s;
}
int where(int B,int C)//判断每月天数
{
	int tian;
	switch(C)
	{  	case 1:					tian=31;break;
	case 2:
		if (B%4==0 && B%100!=0 || B%400==0)
			tian=29;
		else
			tian=28;break;
	case 3:                tian=31;break;
	case 4:					tian=30;break;
	case 5:					tian=31;break;
	case 6:					tian=30;break;
	case 7:					tian=31;break;
	case 8:					tian=31;break;
	case 9:					tian=30;break;
	case 10:				    tian=31;break; 
	case 11:				    tian=30;break;
	case 12:				    tian=31;break;
	}
	return tian;
}
void why(int E)//判断输入日期是星期几
{
	switch(E)
	{
	case 1:                  printf("该日星期一\n");break;
	case 2:                  printf("该日星期二\n");break;
	case 3:                  printf("该日星期三\n");break;
	case 4:                  printf("该日星期四\n");break;
	case 5:                  printf("该日星期五\n");break;
	case 6:                  printf("该日星期六\n");break;
	case 7:                  printf("该日星期日\n");break;
	}
}
void when(int F,int G)//判断日期是否为节日
{
	if (F==1 && G==1 || F==5 && G==1 || F==10 && G==1|| F==3 && G==8 || F==6 && G==1 || F==9 && G==10)
		printf ("当天为法定节日");
	else
		printf ("当天不是法定节日");
}

void main()
{	int year,d,j,Z,di,did,m,n,D,x,y,z,h,k,l,jian,Z1;//d代表1月1号是星期几，Z代表总天数；
	printf ("欢迎来到日历查询系统!\n");
	printf ("输入你所查寻日历的年份:");
	scanf ("%d",&year);
	Z=how(year);
	for (j=1;j<=12;j++)
	{
		d=Z%7;
		printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n");
		printf ("         %d月份\n",j);
		printf ("sun mon tue wed thu fri sat\n");
		if (d<6)
			for (di=1;di<=d+1;di++)
				printf("    ");
		for (did=1;did<=where(year,j);did++)
		{
			printf ("%d",did);                                         //注意空格和换行
			if (did<10)
				printf ("   ");
			else
				printf ("  ");
			if (did==6-d || (did-6+d)%7==0 || did==where(year,j))
				printf ("\n");
		}
		Z=Z+where(year,j);                                   //计算下一个月的1月一号是星期几
	}
	printf ("输入所查日历的年月");
	scanf ("%d%d",&m,&n);
	Z=how(m);
	for (j=1;j<=n-1;j++)
	{
		D=where(m,j);
		Z=Z+D;
	}
	d=Z%7;
	printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n");
	printf ("         %d月份\n",j);
	printf ("sun mon tue wed thu fri sat\n");
	if (d<6)
		for (di=1;di<=d+1;di++)
			printf("    ");
	for (did=1;did<=where(year,j);did++)
	{
		printf ("%d",did);
		if (did<10)                                         //注意空格和换行
			printf ("   ");
		else
			printf ("  ");
		if (did==6-d || (did-6+d)%7==0 || did==where(year,j))
			printf ("\n");
	}
	printf ("输入年月日");
	scanf ("%d%d%d",&x,&y,&z);
	Z=how(x);
	for (j=1;j<=y-1;j++)
	{
		D=where(x,j);
		Z=Z+D;
	}
	Z=Z+z;
	printf ("输入当前年月日");
	scanf ("%d%d%d",&h,&k,&l);               //Z1为当前年月日的总天数
	Z1=how(h);
	for (j=1;j<=k-1;j++)
	{
		D=where(k,j);
		Z1=Z1+D;
	}
	Z1=Z1+l;
	jian=Z1-Z;
	printf ("输入日期距今有%d天\n",jian);
	d=Z%7;
	why(d);
	when(y,z);
}