.TH "KDK_SYSTEM_SET_SHORT_DATEFORMAT" 3 "Tue Sep 19 2023" "Linux Programmer's Manual" \"
.SH NAME
kdk_system_set_short_dateformat - 设置日期短格式
.SH SYNOPSIS
.nf
.B #include <libkydate.h>
.sp
.BI "extern int kdk_system_set_short_dateformat(char *"format ");" 
.sp
Link with \fI\-lkydate\fP.
.SH "Detailed Description"
The main function of this interface is to set the short date format.
.PP
The argument
.I format
is the date format, Please pass in one of the short formats.
.SH "RETURN VALUE"
On success, returns 1
.PP
On error, return
.BR -1.
.SH EXAMPLES
.EX
#include "libkydate.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <stdlib.h>
#include <glib.h>
#include <glib-object.h>

int main()
{
	int ret = kdk_system_set_long_dateformat("2230年3月4日");
	ret = kdk_system_set_short_dateformat("22/5/3");

	char *ld = kdk_system_get_longformat_date();
	printf("long res = %s\n", ld);
	free(ld);
	
	char *sd = kdk_system_get_shortformat_date();
	printf("short res = %s\n", sd);
	free(sd);

	char *ll = kdk_system_get_longformat();
	printf("longformat = %s\n", ll);
	free(ll);

	char *ss = kdk_system_get_shortformat();
	printf("shortformat = %s\n", ss);
	free(ss);

	struct tm ptr;
	
	ptr.tm_year = 2322;
	ptr.tm_mon = 9;
	ptr.tm_mday = 3;

	char *lt = kdk_system_longformat_transform(&ptr);
	printf("longformat_transform = %s\n", lt);
	free(lt);

	ptr.tm_year = 2022;
	ptr.tm_mon = 3;
	ptr.tm_mday = 2;

	char *st = kdk_system_shortformat_transform(&ptr);
	printf("shortformat_transform = %s\n", st);
	free(st);

	kdk_logn_dateinfo *info = kdk_system_login_lock_dateinfo("szm");
	printf("date = %s,time = %s,week = %s\n",info->date,info->time,info->week);
	kdk_free_logn_dateinfo(info);

	ptr.tm_hour = 19;
	ptr.tm_min = 3;
	ptr.tm_sec = 2;
	kdk_timeinfo *ti = kdk_system_timeformat_transform(&ptr);
	printf("time = %s, timesec = %s\n", ti->time, ti->timesec);
	kdk_free_timeinfo(ti);

    return 0;
}

.SH "CONFORMING TO"
These functions are as per the withdrawn POSIX.1e draft specification.
The following functions are Linux extensions:
.BR kdk_system_get_dateformat (),
.BR kdk_system_set_dateformat (),
.BR kdk_system_set_24_timeformat (),
.BR kdk_system_set_12_timeformat (),
.BR kdk_system_get_now_dateformat (),
.BR kdk_system_get_now_timeformat (),
.BR kdk_system_tran_dateformat (),
.BR kdk_system_nowtime (),
.BR kdk_system_nowdate (),
.BR kdk_system_shortweek (),
.BR kdk_system_longweek (),
.BR kdk_system_second (),
.BR kdk_system_logn_dateinfo (),
.BR kdk_system_gjx_time (),
.BR kdk_date_freeall (),
.BR kdk_free_dateinfo (),
.BR kdk_free_logn_dateinfo (),
.BR kdk_system_set_long_dateformat (),
.BR kdk_system_get_longformat_date (),
.BR kdk_system_get_shortformat_date (),
.BR kdk_system_get_longformat (),
.BR kdk_system_get_shortformat (),
.BR kdk_system_longformat_transform (),
.BR kdk_system_shortformat_transform (),
.BR kdk_system_login_lock_dateinfo (),
.BR kdk_system_timeformat_transform ()
and
.BR kdk_free_timeinfo ().

.SH "SEE ALSO"
.BR kdk_system_get_dateformat (3),
.BR kdk_system_set_dateformat (3),
.BR kdk_system_set_24_timeformat (3),
.BR kdk_system_set_12_timeformat (3),
.BR kdk_system_get_now_dateformat (3),
.BR kdk_system_get_now_timeformat (3),
.BR kdk_system_tran_dateformat (3),
.BR kdk_system_nowtime (3),
.BR kdk_system_nowdate (3),
.BR kdk_system_shortweek (3),
.BR kdk_system_longweek (3),
.BR kdk_system_second (3),
.BR kdk_system_logn_dateinfo (3),
.BR kdk_system_gjx_time (3),
.BR kdk_date_freeall (3),
.BR kdk_free_dateinfo (3),
.BR kdk_free_logn_dateinfo (3),
.BR kdk_system_set_long_dateformat (3),
.BR kdk_system_get_longformat_date (3),
.BR kdk_system_get_shortformat_date (3),
.BR kdk_system_get_longformat (3),
.BR kdk_system_get_shortformat (3),
.BR kdk_system_longformat_transform (3),
.BR kdk_system_shortformat_transform (3),
.BR kdk_system_login_lock_dateinfo (3),
.BR kdk_system_timeformat_transform (3)
and
.BR kdk_free_timeinfo (3).