#include <stdio.h>
#include <stdlib.h>
#include <time.h>
void menu();
void year_calendar();
void year_month_calendar();
void year_month_day_calendar();
int main(void) {
int choice;
while(1) {
menu();
printf("请选择你要的日历服务序号：");
scanf("%d", &choice);
switch(choice) {
case 1:
year_calendar();
break;
case 2:
year_month_calendar();
break;
case 3:
year_month_day_calendar();
break;
}
}
return 0;
}
void menu() {
printf("\n");
printf("_________________________________________________________________\n");
printf(" 欢迎来到日历查询系统 \n");
printf(" 1：查询某年日历 \n");
printf(" 2：查询某年某月的日历 \n");
printf(" 3：查询某年月日的日历信息 \n");
printf("_________________________________________________________________\n");
printf("\n");
system("color B0");
}
void year_calendar() {
int i, j, h, k, r, m, n, s, year, mon[12] = {31,28,31,30,31,30,31,31,30,31,30,31}, day[12];
printf("请输入年份：");
scanf("%d", &year);
printf("想要排几列：");
scanf("%d", &n);
if(year % 4 == 0 && year % 100 != 0 || year % 400 == 0)
mon[1] = 29;
day[0] = (year + (year - 1) / 4 - (year - 1) / 100 + (year - 1) / 400) % 7;
for (m = 1; m < 12; m++)
day[m] = (day[m-1] + mon[m-1]) % 7;
for (i = 1; i <= n; i++) {
printf("_____________________ ");
}
printf("\n");
for(i = 1; i <= 12 / n + 1; i++) {
for(j = 1; j <= 10; j++) {
for (r = 1, s = (i - 1) * n; r <= n && s < 12; r++, s++) {
if (j == 1)
printf("%8d年%3d月 ", year, s+1);
if (j == 2||j == 10)
printf("_____________________");
if (j == 3)
printf(" 日 一 二 三 四 五 六");
for (k = (j - 4) * 7 + 1, h = 1; k <= 42 && h <= 7; k++, h++) {
if (k <= mon[s] + day[s]) {
if (j == 4) {
if (k <= day[s])
printf(" ");
else
printf("%3d", k - day[s]);
} else if (j != 1 && j !=2 && j != 3 && j != 10)
printf("%3d", k - day[s]);
} else
printf(" ");
}
printf(" ");
}
printf("\n");
}
}
}
void year_month_calendar() {
int a, b;
int year, month, day, monthmax;
printf("请输入年份：");
scanf("%d", &year);
printf("请输入月份：");
scanf("%d", &month);
if(month == 1 || month == 3 || month == 5|| month == 7 || month == 8 || month == 10 || month == 12) monthmax = 31;
if(month == 2) {
if(year % 4 == 0 || (year % 100 == 0 && year % 400 == 0)) monthmax = 29;
else monthmax = 28;
}
if(month == 4 || month == 6 || month == 9 || month == 11) monthmax = 30;
if(month == 1 || month == 2) {
month += 12;
year--;
}
day = ( 2 + 2 * month + 3 * (month + 1) / 5 + year + year / 4 - year / 100 + year / 400) % 7;
if(day == 0) {
day = 7;
}
printf("________________________________________________________\n");
printf("一 二 三 四 五 六 日\n");
printf("________________________________________________________\n");
for(a = 1; a <= day - 1; a++) {
printf(" ");
}
for(b = 1; b <= monthmax; b++) {
printf(" %d ", b);
if((b + day -1) % 7 == 0)
printf("\n");
}
}
void year_month_day_calendar() {
int year, month, dayy, day, day1, day2, weekday, flag, n1, n2, n, i;
int month_day[13];
struct tm *local;
time_t t;
printf("\n请输入查询的年月日（空格隔开）：");
scanf("%d%d%d", &year, &month, &dayy);
printf("输入的日期是：%d年%d月%d日\n", year, month, dayy);
if( month == 1|| month == 2) {
month += 12;
year--;
}
/*int iWeek = (dayy + 2 * month + 3 * (month + 1) / 5 + year + year / 4 - year / 100 + year / 400) % 7;*/
int iWeek;
iWeek = (dayy + 2 * month + 3 * (month + 1) / 5 + year + year / 4 - year / 100 + year / 400) % 7;
switch(iWeek) {
case 0:
printf("输入的日期是：星期一\n");
break;
case 1:
printf("输入的日期是：星期二\n");
break;
case 2:
printf("输入的日期是：星期三\n");
break;
case 3:
printf("输入的日期是：星期四\n");
break;
case 4:
printf("输入的日期是：星期五\n");
break;
case 5:
printf("输入的日期是：星期六\n");
break;
case 6:
printf("输入的日期是：星期日\n");
break;
}
if((month == 1 && dayy == 1) || (month == 3 && dayy == 8) ||(month == 3 && dayy == 12) ||(month == 4 && dayy == 5) ||(month == 5 && dayy == 1) ||(month == 5 && dayy == 4) || (month == 6 && dayy == 1) ||(month ==7 && dayy == 1) ||(month == 8 && dayy == 1) ||(month == 9 && dayy == 3) ||(month == 9 && dayy == 10) ||(month == 10 && dayy == 1))
printf("输入的日期是公历节日\n");
else printf("输入的日期不是公历节日\n");
day = 0;
for(i = 1; i <= year - 1; i++) {
if(year % 400 == 0 || (year % 4 == 0 && year % 100 != 0))
n = 366;
else n = 365;
day = day + n;
}
day1 = day;
month_day[0] = 0;
for(i = 1; i <= 12; i++) {
switch(i) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
month_day[i] = 31;
break;
case 4:
case 6:
case 9:
case 11:
month_day[i] = 30;
break;
case 2:
if(year % 400 == 0 || (year % 4 == 0 && year% 100 != 0) )
month_day[i] = 29;
else month_day[i] = 28;
break;
}
}
for(i = 1,n1 = 0; i <= month - 1; i++)
day1 = day1 + month_day[i];
day1 = day1 + dayy;
n1 = day1;
t = time(NULL);
local = localtime(&t);
year = local->tm_year + 1900;
month = local->tm_mon + 1;
dayy = local->tm_mday;
printf("今天的日期是：%d年%d月%d日\n", year, month, dayy);
day2 = day;
for(i = 1; i <= 12; i++) {
switch(i) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
month_day[i] = 31;
break;
case 4:
case 6:
case 9:
case 11:
month_day[i] = 30;
break;
case 2:
if(year % 400 == 0 || (year % 4 == 0 && year % 100 != 0))
month_day[i] = 29;
else month_day[i] = 28;
break;
}
}
for(i = 1, n2=0; i <= month - 1; i++)
day2 = day2 + month_day[i];
day2 = day2 + dayy;
n2 = day2;
printf("输入日期距离当前系统日期还有：%d天\n",n2-n1);
}
