Urgent! ~ ~ ~ ~ The program requirements for writing and printing perpetual calendars in C or c++ are as follows
/*****************************************************************
* Author: wacs5
* Date? :20 10 1 1 10(yymmdd)
* E-mail? :wacs5@ 126.com
* Function: Write and print the perpetual calendar in C.
*Targe？ :/question/ 195084859.html
* Compiler: TC2.0, Gcc passed (if it is VC++, remove #include? & ltconio.h & gt)
* * In addition, the getch () function can be replaced by a system ("pause") statement.
*****************************************************************/
# Contains? & lttime.h & gt
# Contains? & ltmath.h & gt
# Contains? & ltstdio.h & gt
# Contains? & ltconio.h & gt
int？ DaysInMonth[ 13]={0，3 1，28，3 1，30，3 1，30，3 1，30，3 1，30，3 1 }；
int？ DaysInYear[ 13]={0，3 1，59，90， 120， 15 18 1，2 12，243，273，304，334，365 }；
Charles? MonthInfo[ 13][4]={ "","January", "February", "March", "April", "May", "June", "July", "August", "September" and "October".
Charles? WeekInfoEng[8][4]={"Sun "，" Mon "，" Tue "，" Wed "，" Thu "，" Fri "，" Sat " }；
Charles? Weekly Fochs [8] [3] = {"Tian", "One", "Two", "Three", "Four", "Five" and "Six"};
int？ Master ()
{
int？ Year, month and day;
int？ flag = 1； /* Whether to output to a file, 1 is output, 0 is no output */
Dragon? date 1；
int？ IsLoopYear(int？ Year);
int？ CheckDay(int？ Year, int? Month, int? Day);
Dragon? Date2Long(int？ Year, int? Month, int? Day);
int？ Zhou (long? Day);
int？ PrintNow(int？ Flag);
int？ MonthCalendar(int？ Year, int? Month, int? Flag);
int？ YearCalendar(int？ Year, int? Flag);
int？ PrintNumMask(int？ Year, char? Ch, file? * FP)；
print now(flag)； /* output the monthly calendar of the current month, and output the time. Flag= 1 means output to file */?
printf(" year = ")；
Scanf("%d ",& year);
YearCalendar (year, flag); ? /* output 20 10 calendar, flag= 1 means output to file */
getch()；
}
/* Judging leap years */
int？ IsLoopYear(int？ Year)
{
Return? Year %400==0? ||? (year% 100? & amp& amp？ Year% 4 = = 0);
}
/* Check the legality of the date */
int？ CheckDay(int？ Year, int? Month, int? Day)
{
int？ IsLoopYear(int？ Year);
/* The date is greater than zero, the month is 1- 12, and the date is 1 the maximum number of days to the month. Pay attention to the leap month in February */
What if? (year & gt=0? & amp& amp？ Month & gt0? & amp& amp？ Month & lt= 12? & amp& amp？ Day>0? & amp& amp？ \
day & lt=(? DaysInMonth[month]+(month = = 2 & amp； & ampIsLoopYear(year))？ ))
Return? 1;
other
Return? 0;
}
/* Returns the number of days in a year from the day of the month to 65438+10,0000 (abstract time)) */
Dragon? Date2Long(int？ Year, int? Month, int? Day)
{
Dragon? Day;
Days = year * 365 l+ year /4 years/100+ year /400? +? (year & gt0); ? /* Year 65438+1the number of days on October 0, where 0 is a leap year */
days+= DaysInYear[month- 1]+？ (Month & gt2 & amp& ampIsLoopYear(year))? +? Day; /* Add month and day */
Return? Day;
}
/* Calculate the week */
int？ Zhou (long? Day)
{
Return? (Days+5)% 7; ?
}
/* output the current time, output the calendar of the current month */
int？ PrintNow(int？ Flag)?
{
time_t？ Now;
struct？ tm？ * TM _ 1； ?
int？ Zhou (long? Day);
int？ CheckDay(int？ Year, int? Month, int? Day);
Dragon? Date2Long(int？ Year, int? Month, int? Day);
int？ MonthCalendar(int？ Year, int? Month, int? Flag);
Time (&now);
tm_ 1=localtime。 Now);
month calendar(TM _ 1->； tm_year+ 1900，TM _ 1->； tm_mon+ 1，flag)；
Printf ("Today is: %02d %02d, week %s\n", tm _1-> tm_year+ 1900，TM _ 1->； tm_mon+ 1，TM _ 1->； tm_mday，WeekInfoChs[TM _ 1-& gt； TM _ wday])；
Printf ("Current time is %02d minutes %02d seconds \n", tm _1-> tm_hour，TM _ 1->； tm_min，TM _ 1->； TM _ sec)；
Return? 1;
}
/* Output monthly calendar */
int？ MonthCalendar(int？ Year, int? Month, int? When flag)/*flag= 1
{
int？ I, k, day, week;
Dragon? Day;
Charles? File name [80];
int？ Zhou (long? Day);
int？ CheckDay(int？ Year, int? Month, int? Day);
Dragon? Date2Long(int？ Year, int? Month, int? Day);
Documents? * fp
What if? (flag)
{
Sprintf (file name, "%04d_%02d.txt", year, month);
Fp=fopen (file name, "w");
What if? (fp==NULL)
{
printf("File？ Open? Mistakes? Are you online? Function: MonthCalendar\nPress? Really? Keys? Where to? Exit: ");
getch()；
Exit (-1);
}?
}
Day =1;
What if? (! CheckDay (year, month, day))
{
Printf ("format: %d-%d- 1(YYYY-MM-DD)? Is it? Invalid? Are you online? Function: MonthCalendar\n ",year, month);
Return? 0;
}
Days=Date2Long (year, month, day);
Week = week (day);
k =(4 * 7-9)/2；
For what? (I = 0； I & ltk；; i++)
File name [i]='?' ;
File name [k] =' \ 0';
Printf ("monthcalendar: \ n% s% d-%s \ n", file name, year, month info[ month]);
What if? (flag)
fprintf(fp，" %s%d - %s\n "，filename，year，month info[month])；
For what? (I = 0； I<7; i++)
{
printf("%s？" ，WeekInfoEng[I])；
What if? (flag)
fprintf(fp，" %s？" ，WeekInfoEng[I])；
}
printf(" \ n ")； ?
What if? (flag)
fprintf(fp，" \ n ")；
For what? (I = 0； I< week; i++)
{
printf(" ")；
What if? (flag)
fprintf(fp，" ")；
}
For what? (I = days; I< = daysinmonth [month]+(month = = 2) * (is loop year (year)); i++)？ /* In February of leap year, add one */
{
printf("%3d？" , I);
What if? (flag)
fprintf(fp，" %3d？" , I);
What if? ((I+ Weeks) %7==0)
{
printf(" \ n ")；
What if? (flag);
fprintf(fp，" \ n ")；
}?
}
printf(" \ n ")；
What if? (flag)
{
fprintf(fp，" \ n ")；
fclose(FP)；
}
Return? 1;
}
/* Output Yearbook */
int？ YearCalendar(int？ Year, int? Flag)
{
int？ month _ col = 2； ? /* How many calendar months per line */
int？ space _ col = 4； ? /* Number of spaces in the two-month calendar */
int？ month _ row =(int)ceil( 12.0/month _ col)；
int？ Line, end_day[ 13], keepgoing [13] = {1};
int？ I, j, k, month, day [13], week [13];
Dragon? Days [13];
Charles? Space [3] [80];
int？ Zhou (long? Day);
int？ CheckDay(int？ Year, int? Month, int? Day);
Dragon? Date2Long(int？ Year, int? Month, int? Day);
int？ PrintNumMask(int？ Year, char? Ch, file? * FP)；
Documents? * fp
What if? (flag)
{
Charles? File name [80];
Sprintf (file name, "%04d.txt", year);
Fp=fopen (file name, "w");
What if? (fp==NULL)
{
printf("File？ Open? Mistakes? Are you online? Function: Calendar \ nPress? Really? Keys? Where to? Exit: ");
getch()；
Exit (-1);
}?
}
For what? (Month =1; Month & lt= 12; Month++)
{
Day [month] =1;
What if? (! CheckDay (year, month, day [month])
{
Printf ("format: %d-%d- 1(YYYY-MM-DD)? Is it? Invalid? Are you online? Function: YearCalendar\n ",year, month);
Return? 0;
}
Days[month]=Date2Long (year, month, day [month]);
Week [month] = week (day [month]);
keep going[month]= 1；
}
k =(7 * 4-3)/2；
For what? (I = 0； I & ltk；; I++)/* Spaces before the month sign */
Space [0][i]='?' ;
space[0][I]= ' \ 0 '； ?
For what? (I = 0； I<7 * 4-3-k; i++)？ /* Spaces after the month sign */
space[ 1][i]= '？' ;
space[ 1][I]= ' \ 0 '；
For what? (I = 0； I < space _ column; i++)？ /* Spacing between two columns */
Space [2][i]='?' ;
space[2][I]= ' \ 0 '；
PrintNumMask(year，' * '，stdout)；
PrintNumMask(year，' * '，FP)；
Month =1;
For what? (I = 0； I & ltmonth _ rowi++)
{
For what? (j = 0； J< month _ column; j++)？ /* Abbreviation of output month */
{
printf("%s%s%s "，space[0]，MonthInfo[month+j]，space[ 1])； /* leading space, month abbreviation, followed by leading space */
What if? (flag)
fprintf(fp，" %s%s%s "，space[0]，MonthInfo[month+j]，space[ 1])；
What if? (j & ltMonth_col- 1)/* Spaces between columns of the month */
{
Printf("%s ",space [2]);
What if? (flag)
fprintf(fp，" %s "，space[2])；
}?
}
printf(" \ n ")； /* Line feed */
What if? (flag)
fprintf(fp，" \ n ")； ?
For what? (j = 0； J< month _ column; j++)？
{
For what? (k = 0； k & lt7; k++)？ /* week abbreviation */
{
printf("%s？" ，WeekInfoEng[k])；
What if? (flag)
fprintf(fp，" %s？" ，WeekInfoEng[k])；
}
What if? (j & ltMonth_col- 1)/* Spaces between columns of the month */
{
Printf("%s ",space [2]);
What if? (flag)
fprintf(fp，" %s "，space[2])；
}?
}
printf(" \ n ")； /* Line feed */
What if? (flag)
fprintf(fp，" \ n ")； ?
For what? (j = 0； J< month _ column; j++)？ /* Horizontal line */
{
For what? (k = 0； k & lt7; k++)？ /* Horizontal line */
{
printf(" _ _ _ _ _ _ _ "，WeekInfoEng[k])；
What if? (flag)
fprintf(fp，" _ _ _ _ _ _ _ "，WeekInfoEng[k])；
}
What if? (j & ltMonth_col- 1)/* Spaces between columns of the month */
{
Printf("%s ",space [2]);
What if? (flag)
fprintf(fp，" %s "，space[2])；
}?
}
printf(" \ n ")； /* Line feed */
What if? (flag)
fprintf(fp，" \ n ")； ?
For what? (j = 0； J< month _ column; J++)/* First line */
{
For what? (k = 0； K< week [month+j]; k++)？ /*No. 1 Ventilation before */
{
printf(" ")；
What if? (flag)
fprintf(fp，" ")；
}
For what? (k = 1； k & lt=7; k++)？
{
printf("%3d？" ，k)；
What if? (flag)
fprintf(fp，" %3d？" ，k)；
What if? ((k+ week [month +j])%7==0)
{
end _ day[month+j]= k+ 1；
Printf("%s ",space [2]);
What if? (flag)
fprintf(fp，" %s "，space[2])；
Break;
}
}
}
printf(" \ n ")； /* Line feed */
What if? (flag)
fprintf(fp，" \ n ")； ?
For what? (line = 0； line & lt5; line++)
{
For what? (j = 0； J< month _ column; j++)
{
What if? (keepgoing[month+j]==0)/* Fill a blank line */
For what? (k = 0； k & lt7; k++)
{
printf(" ")；
What if? (flag)
fprintf(fp，" ")；
}
other
{
For what? (k = end _ day[month+j]； k & lt= DaysInMonth[month+j]+(month = = 2)*(is loopyear(year))； k++)
{
printf("%3d？" ，k)；
What if? (flag)
fprintf(fp，" %3d？" ，k)；
What if? ((k+ week [month +j])%7==0)
{
end _ day[month+j]= k+ 1；
Break;
}
}
What if? (k & gt= DaysInMonth[month+j]+(month = = 2)*(is loopyear(year)))
keep going[month+j]= 0； ?
What if? (k & gtdays inmonth[month+j]+(month = = 2)*(is loopyear(year)))？ /* Fill in the blanks */?
{
For what? (; k & lt 100; k++)
{
printf(" ")；
What if? (flag)
fprintf(fp，" ")；
What if? ((k+ week [month +j])%7==0)
Break;
}
}
}
What if? (j & ltMonth_col- 1)/* Spaces between columns of the month */
{
Printf("%s ",space [2]);
What if? (flag)
fprintf(fp，" %s "，space[2])；
}
}?
printf(" \ n ")； ? /* Line feed */
What if? (flag)
fprintf(fp，" \ n ")； ?
/* Whether all the months in each line have been output */
k = 0；
For what? (j = 0； J< month _ column; j++)
k+= keep going[month+j]；
What if? (k==0)
Break;
}
Month? +=? Month _ column;
printf(" \ n ")； /* Line feed */
What if? (flag)
fprintf(fp，" \ n ")； ?
}
What if? (flag)
fclose(FP)；
Return? 1;
}
/* Digital analog output */
int？ PrintNumMask(int？ Year, char? Ch, file? *fp)
{
/*5*5 digital modulus */
int？ mask[ 10][5]={？ {3 1, 17, 17, 17,3 1},{? 1,? 1,? 1,? 1,? 1},\
{3 1, 1? ,3 1, 16,3 1},{3 1,? 1,3 1,? 1,3 1},\
{ 17, 17,3 1,? 1,? 1},{3 1, 16,3 1,? 1,3 1},\
{3 1, 16,3 1, 17,3 1},{3 1,? 1,? 1,? 1,? 1},\
{3 1, 17,3 1, 17,3 1},{3 1, 17,3 1,? 1,3 1}};
int？ digit[ 16]= { 0 }；
Charles? space= '？' ;
int？ I，j，k，n；
n = 0；
When (year)
{
Digit[n++]= year%10;
year/= 10；
}
For what? (I = 0； I<5; I++)/* Line */
{
For what? (k = 0； k & ltn； k++)？ /* The first line of the word */
{
For what? (j = 0； j & lt5; j++)？ /* column */
{
What if? (? mask[digit[n- 1-k]][i]？ & amp？ ( 1 & lt； & lt(4-j))？ )
fprintf(fp，" %c "，ch)；
other
Fprintf(fp, "%c", space);
}
Fprintf(fp, "%c", space);
}
fprintf(fp，" \ n ")；
}
Return? 1;
}
Output result:
Monthly calendar of the current month and calendar of 20 10.