日历查询系统c 语言,急求：C语言课程设计日历查询系统要求该程序具有下列功能：br/ 爱问知识人...

#include "stdio。h" /* Required for MS-DOS use */

#define ENTER 0x1C0D /* Enter key */

int year, month, day;

static char *days[8] = {" ","Sunday ","Monday ","Tuesday ",

"Wednesday","Thursday ","Friday ","Saturday "};

struct TIMEDATE {

int year; /* year 1980。

。2099 */

int month; /* month 1=Jan 2=Feb, etc。 */

int day; /* day of month 0。

。31 */

int hours; /* hour 0。。23 */

int minutes; /* minute 0。

。59 */

int seconds; /* second 0。。59 */

int hsecs; /* 1/100ths of second 0。

。99 */

char dateline[47]; /* date & time together */

};

static struct TIMEDATE today;

main()

{

char cmonth[3];

char cday[3];

char cyear[5];

double getdays();

double daynumb, numbnow;

int weekday, retcode, dayer, i;

dayer = datetime(&today);

clrscn();

for (i=0;i 0)

printf("

d-d-%d was",month, day, year);

if (numbnow - daynumb 13。

5) month = e - 13。0;

else month = e - 1。0;

if (month > 2) year = c - 4716。0;

else year = c - 4715。

0;

if (year 28000。0) dd = dd - 28000。0;

while (dd 32767) numb -= 32767;

inumb = numb;

fnumb = inumb;

return(numb-fnumb);

} /* end FRACT */

/********************************************************

* FLOOR - This routine takes a double float number *

* and returns the next smallest integer *

********************************************************/

double floor(numb)

double numb;

{

double fract(), intg();

double out;

out = intg(numb);

if (numb < 0 && fract(numb) != 0) out -= 1。

0;

return(out);

} /* end FLOOR */

/********************************************************

* INTG - This routine takes a double float number *

* and returns the integer part as a double *

* float number *

********************************************************/

double intg(numb)

double numb;

{

double fract();

return(numb - fract(numb));

} /* end INTG */。

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