[C++知识库]C语言输出教学日历表

按照格式分别输入学期，开学时间，总周数即可得到课程表，以回车结束。
eg.
学期：2021-2022_2
开学时间：2021/11/25
总周数：20

输出结果

?

#include<stdio.h>
#include<windows.h>

int Weekdayofyear(int year);
int Isprime(int year);
int Days(int year, int mouth);
int Weekday(int year, int mouth, int day);
int Max(int year,int mouth);



int main() {
	char title1[] = "\t\txxxxxx大学教学日历\t\t";
	char title2[] = "0000-0000学年第0学期";
	char tab[60] = "周      一      二      三      四      五      六      日";
	char term3;
	char calender[100][8];
	int tempday, tempmouth,flag = 1,b,c,d,e,f,g,h,i,j, cnt = 1, week,term1, term2,year, mouth, day;

	printf("学期:");
	scanf("%d-%d_%c", &term1, &term2, &term3);   
	printf("开学时间：");
	scanf("%d/%d/%d", &year, &mouth, &day);;
	printf("总周数:");
	scanf("%d", &week);
	tempday = day;
	tempmouth = mouth;
	for (b = 3; b >= 0; b--)          
	{                                      
		title2[b] = term1 % 10 + 48;
		term1 /= 10;
	}
	for (c = 8; c >= 5; c--)           
	{
		title2[c] = term2 % 10 + 48;
		term2 /= 10;
	}
	title2[15] = term3;                     
	for (d = 0; d < week; d++) {
		calender[d][0] = d + 1;
	}
	for (e = 0; e < week; e++) {
		for (f = 1; f < 8; f++) { 
			if (e == 0) {                   
				for (g = 1; g < Weekday(year, mouth, day); g++) {
					calender[e][g] = 0;
				}
				for (h = Weekday(year, mouth, day);h < 8; h++) {
					calender[e][h] = day++;
				}
				break;
		    }
			if (day > Max(year, mouth)) {
				mouth += 1;
				if (mouth > 12) {
					mouth = 1;
				}
				calender[e][f] = -mouth;
				day = 2;

			}
			else {
				calender[e][f] = day++;
			}
			
		}
	}
	puts(title1);
	printf("\t\t  ");
	puts(title2);
	puts(tab);   
	for (i = 0; i < week; i++) {                            
		for (j = 0; j < 8; j++) {
			if (calender[i][j] == 0) {  
				printf("  \t");
				continue;
			}
			if (calender[i][j] < 0) {
			//	SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), 15 | 0 | 128 | 0);  
				printf("%d月\t", -calender[i][j]);
			//	SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), 7 | 0 | 0 | 0);
			}
			else {
				printf("%2d\t", calender[i][j]);
			}
		}
		printf("\n");
	}
}

int Weekdayofyear(int year) {            
	int days = 0, week;
	int a;
	for (a = 0; a < year - 1900; a++) {
		if (a % 4 == 0) days += 366;
		else days += 365;
	}
	week = days % 7;
	if (week == 0) week = 7;
	return week;
}
int Isprime(int year) {    
	char flag;
	if (year % 4 == 0) {
		flag = 1;
	}
	else {
		flag = 0;
	}
	return flag;
}
int Days(int year, int mouth) {     
	int days = 0;
	int isprime;
	isprime = Isprime(year);
	switch (mouth) {
	case 12:days += 31;
	case 11:days += 30;
	case 10:days += 31;
	case 9:days += 30;
	case 8:days += 31;
	case 7:days += 31;
	case 6:days += 30;
	case 5:days += 31;
	case 4:days += 30;
	case 3:days += 31;
	case 2:if (isprime == 1) days += 29;
		  else days += 28;
	case 1:days += 31;
	}
	return days;
}
int Weekday(int year, int mouth, int day) {     
	int days;
	int weekday;
	days = Days(year, mouth - 1);
	days += day;
	weekday = days % 7;
	weekday = weekday + Weekdayofyear(year) - 1;
	if (weekday > 7) weekday -= 7;
	return weekday;
}
int Max(int year,int mouth) {     
	int days;
	int isprime;
	isprime = Isprime(year);
	switch (mouth) {
	case 12:days = 31; break;
	case 11:days = 30; break;
	case 10:days = 31; break;
	case 9:days = 30; break;
	case 8:days = 31; break;
	case 7:days = 31; break;
	case 6:days = 30; break;
	case 5:days = 31; break;	
	case 4:days = 30; break;
	case 3:days = 31; break;
	case 2:if (isprime == 1) days = 29; 
		  else days = 28; break;
	case 1:days = 31; break;
	}
	return days;
}