Program yearbook

# include & lttime.h & gt

# include & ltstdlib.h & gt

//Print the calendar of the current year and output it to the file name under the folder named after your student number.

Const char output file name! \n ",year, start _ year);

Return;

}

/* Check the entered month */

If (month & lt0 || month & gt 12)

{

Printf ("Illegal month: %d! The month must be within the range! \n ",year, start _ year);

Return;

}

/* * * * * * * * * * * * * * * * Start printing the calendar * * * * * * * * * * * * * * * *.

/* Calendar year title */

Printf ("calendar %d\n", year);

for(start month = 1； startMonth<= 12; start month+= showMonthNumPerLine)

{

showMonthNumPerLine =(start month+maxShowMonthNumPerLine)& lt； = 12 ? maxShowMonthNumPerLine:( 12-start month+ 1)；

/* 1 beginning of calendar month */

for(month = start month； Month & lt (startmonth+showmonthnumperline); Month++)

{

printf("%-28s "，MONTH _ NAME[MONTH- 1])；

}

printf(" \ n ")；

/* Week beginning of 2-year calendar */

for(month = start month； Month & lt (startmonth+showmonthnumperline); Month++)

{

for(I = 0； I<7; i++)

{

printf("%s "，WEEK _ NAME _ SHORT[I])；

}

printf(" ")；

}

printf(" \ n ")；

//dividing line

for(month = start month； Month & lt (startmonth+showmonthnumperline); Month++)

{

for(I = 0； I & lt4*7; i++)

{

printf(" _ ")；

}

printf(" ")；

}

printf(" \ n ")；

/* data initialization */

for(month = start month； Month & lt (startmonth+showmonthnumperline); Month++)

{

//Week of the first day of each month

First day of monthinweekday [month-start month] = get first day of monthinweekday (year, month);

//Days of the month

Daysofmount [month-startmonth] = getDaysofmount (year, month);

//The number of days that have been output.

days counter[month-start month]=-first day ofmonthinweekday[month-start month]+ 1；

}

/* Arrange 3 calendars every day */

showMonthCounterPerLine = 0；

while(showMonthCounterPerLine & lt； showMonthNumPerLine)

{

for(month = start month； Month & lt (startmonth+showmonthnumperline); Month++)

{

for(I = 0； I<7; i++)

{

if(days counter[month-start month]& lt； = 0 | | days counter[month-start month]& gt； What day is it in a month?

{

printf("%4s "，" ")；

}

other

{

printf("%3d "，days counter[month-start month])；

}

days counter[month-start month]++；

if(days counter[month-start month]& gt； What day is it in a month?

{

showmonthcounterperline++；

}

}

printf(" ")；

}

printf(" \ n ")；

}

//dividing line

for(month = start month； Month & lt (startmonth+showmonthnumperline); Month++)

{

for(I = 0； I & lt4*7; i++)

{

printf(" _ ")；

}

printf(" ")；

}

printf(" \ n ")；

}

}

int main(int argc，char *argv[])

{

Int year, month;

Time_t t = time (empty);

struct tm* now = localtime。 t)；

Int selection;

/*

1

Displays a calendar of any year and month.

Output the almanac of the current year in a format of two months per line.

Output the almanac of any year in a format of two months per line.

*/

while( 1)

{

printf("××××××××××××××\ n ")；

Printf(" 1 output the calendar of the current month1\ n ");

Printf("2 output current year almanac 2 \ n ");

Printf ("3Specify a calendar of any year and month 3 \ n");

Printf("4 specifies the calendar of any year 4 \ n ");

printf(" 5 exits 5 \ n ")；

printf("××××××××××××××\ n ")；

Scanf("%d ",& select);

Switch (selection)

{

Case 1:

PrintMonthCalendar (now->; Tm_year+ 1900, now-> TM _ mon+ 1)；

Break;

Case 2:

PrintYearCalendar (now->; tm_year+ 1900，2)；

Break;

Case 3:

Printf ("Enter year and month (yyyy-mm):");

Scanf("%d-%d ",& year & month);

PrintMonthCalendar (year, month);

Break;

Case 4:

Printf ("Enter year (YYYY):")；:");

Scanf("%d-%d ",& year);

printYearCalendar(year，2)；

Break;

Case 5:

Exit (0);

Default value:

Printf ("Wrong selection, please re-select \ n"); ;

};

}

Returns 0;

}