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怎么获取系统时间？

楼主fwall（防火墙）2006-04-29 11:30:35 在 VC/MFC / 基础类提问

大家好，我想获取系统时间，格式为：年-月-日-时-分-秒-毫秒问题点数：20、回复次数：23Top

1 楼sycnick（李小虾）回复于 2006-04-29 11:33:57 得分 1

COleDateTime::GetCurrentTime

CTime::GetCurrentTimeTop

2 楼sunmz_wjxy（孙大圣）回复于 2006-04-29 11:37:42 得分 2

MSDN的代码:
#include <time.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/timeb.h>
#include <string.h>

void main()
{
char tmpbuf[128], ampm[] = "AM";
time_t ltime;
struct _timeb tstruct;
struct tm *today, *gmt, xmas = { 0, 0, 12, 25, 11, 93 };

/* Set time zone from TZ environment variable. If TZ is not set,
* the operating system is queried to obtain the default value
* for the variable.
*/
_tzset();

/* Display operating system-style date and time. */
_strtime( tmpbuf );
printf( "OS time:\t\t\t\t%s\n", tmpbuf );
_strdate( tmpbuf );
printf( "OS date:\t\t\t\t%s\n", tmpbuf );

/* Get UNIX-style time and display as number and string. */
time( &ltime );
printf( "Time in seconds since UTC 1/1/70:\t%ld\n", ltime );
printf( "UNIX time and date:\t\t\t%s", ctime( &ltime ) );

/* Display UTC. */
gmt = gmtime( &ltime );
printf( "Coordinated universal time:\t\t%s", asctime( gmt ) );

/* Convert to time structure and adjust for PM if necessary. */
today = localtime( &ltime );
if( today->tm_hour > 12 )
{
strcpy( ampm, "PM" );
today->tm_hour -= 12;
}
if( today->tm_hour == 0 ) /* Adjust if midnight hour. */
today->tm_hour = 12;

/* Note how pointer addition is used to skip the first 11
* characters and printf is used to trim off terminating
* characters.
*/
printf( "12-hour time:\t\t\t\t%.8s %s\n",
asctime( today ) + 11, ampm );

/* Print additional time information. */
_ftime( &tstruct );
printf( "Plus milliseconds:\t\t\t%u\n", tstruct.millitm );
printf( "Zone difference in seconds from UTC:\t%u\n",
tstruct.timezone );
printf( "Time zone name:\t\t\t\t%s\n", _tzname[0] );
printf( "Daylight savings:\t\t\t%s\n",
tstruct.dstflag ? "YES" : "NO" );

/* Make time for noon on Christmas, 1993. */
if( mktime( &xmas ) != (time_t)-1 )
printf( "Christmas\t\t\t\t%s\n", asctime( &xmas ) );

/* Use time structure to build a customized time string. */
today = localtime( &ltime );

/* Use strftime to build a customized time string. */
strftime( tmpbuf, 128,
"Today is %A, day %d of %B in the year %Y.\n", today );
printf( tmpbuf );
}

Output

OS time: 21:51:03
OS date: 05/03/94
Time in seconds since UTC 1/1/70: 768027063
UNIX time and date: Tue May 03 21:51:03 1994
Coordinated universal time: Wed May 04 04:51:03 1994
12-hour time: 09:51:03 PM
Plus milliseconds: 279
Zone difference in seconds from UTC: 480
Time zone name:
Daylight savings: YES
Christmas Sat Dec 25 12:00:00 1993

Today is Tuesday, day 03 of May in the year 1994
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3 楼Qiushen（忘魂）回复于 2006-04-29 11:53:32 得分 1

CString strTime = CTime::GetCurrentTime().Format("%Y-%m-%d %H:%M:%S");Top

4 楼Pipi0714（老顽童）回复于 2006-04-29 11:58:57 得分 1

GetLocalTimeTop

5 楼fwall（防火墙）回复于 2006-05-08 11:32:42 得分 0

谢谢各位,我刚刚接触VC,很多东西都的开始学,请大家多提供点帮助,我的分很多的!Top

6 楼fwall（防火墙）回复于 2006-05-15 17:00:34 得分 0

pDbcom->GetRealData(10,(LPCTSTR)strdbM,transdata);
dbsql.Format("INSERT INTO Exp(ID, Np, Pft, Pfpi, Pfpo, EPfp, Tft, Tfpi, Qfao, Te, He, Fl) VALUES(%ld,%6.1f,%5.3f,%5.3f,%5.3f,%5.3f,%4.1f,%4.1f,%7.3f,%4.1f,%4.1f,%4.1f)",dbcount,transdata[0],transdata[1],transdata[2],transdata[3],(transdata[3]-transdata[2]),transdata[4],transdata[5],transdata[6],transdata[7],transdata[8],transdata[9]);
我想在F1变量后面增加系统的时间，格式位:时-分-秒-毫秒
各位大狭，怎么修改上边的代码？
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7 楼lfchen（一条晚起的虫--床上用品[家纺]专卖）回复于 2006-05-15 17:03:28 得分 2

数据库中的时间字段是什么格式？是什么数据库？
Top

8 楼fwall（防火墙）回复于 2006-05-15 17:06:16 得分 0

我在MSDN里找的，可我才开始看VC++，不知道怎么使用，请大家帮忙，谢谢！
typedef struct _SYSTEMTIME { // st
WORD wYear;
WORD wMonth;
WORD wDayOfWeek;
WORD wDay;
WORD wHour;
WORD wMinute;
WORD wSecond;
WORD wMilliseconds;
} SYSTEMTIME;
Top

9 楼lfchen（一条晚起的虫--床上用品[家纺]专卖）回复于 2006-05-15 17:09:17 得分 1

这个是个结构
SYSTEMTIME time;
GetLocalTime(&time); //获取当前系统时间。
time.wYear; //年
...
time.wMilliseconds; //msTop

10 楼rubor5168（Alan）回复于 2006-05-15 17:12:16 得分 1

多看MSDN吧.上面也有实例的Top

11 楼fwall（防火墙）回复于 2006-05-16 13:35:35 得分 0

VC真的好难啊!
那为帮我作个例子,创建一个数据库表格,里面有系统时间字段
如表A,字段为:ID,数据1,数据2,年:月:日:时:分:秒:毫秒
采用VC语言的SQL语句创建表格,如:
dbsql.Format("INSERT INTO Exp(ID, Np, Pft, Pfpi)VALUES(%ld,%6.1f,%5.3f,%5.3f)",dbcount,transdata[0],transdata[1],transdata[2],transdata[3],transdata[4]);
Top

12 楼fwall（防火墙）回复于 2006-05-18 10:54:02 得分 0

问题看来还的自己解决！
你们说的都不适合，我已经找到了，分享给大家吧！
#include <stdio.h>
#include <sys/timeb.h>
#include <time.h>

void main( void )
{
struct _timeb timebuffer;
char *timeline;

_ftime( &timebuffer );
timeline = ctime( & ( timebuffer.time ) );

printf( "The time is %.19s.%hu %s", timeline, timebuffer.millitm, &timeline[20] );
}

Output

The time is Tue Mar 21 15:26:41.341 1995

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13 楼huanazhang（）回复于 2006-05-18 11:14:15 得分 1

CString sTime,sYear,sMonth,sDay,sHour,sMinute,sSecond,sMilliseconds;
SYSTEMTIME CurTime;
GetLocalTime(&CurTime);
sYear.Format("%d",CurTime.wYear);
sMonth.Format("%d",CurTime.wMonth);
sDay.Format("%d",CurTime.wDay);
sHour.Format("%d",CurTime.wHour);
sMinute.Format("%d",CurTime.wMinute);
sSecond.Format("%d",CurTime.wSecond);
sMilliseconds.Format("%d",CurTime.wMilliseconds);

sTime = sYear+ sMonth + sDay + sHour + sMinute + sSecond + sMilliseconds;

return sTime;Top

14 楼fwall（防火墙）回复于 2006-05-19 17:05:04 得分 0

msdn中说使用SYSTEMTIME 结构体，得不到sMilliseconds，不过我还是感谢大家参与，我要结帐了。
另外谁能帮我解决我这个问题，我另外开个帖子，分都给他！
VC中创建数据库插入数据：
dbsql.Format("INSERT INTO Exp(ID, Np, Pft, Pfpi)VALUES(%ld,%6.1f,%5.3f,%5.3f)",dbcount,transdata[0],transdata[1],transdata[2],transdata[3],transdata[4]);

我要在表的后面插入H:M:S.MS 就是15:26:41.341 （小时：分：秒.毫秒）怎么插入，主要是VALUES（）中的参数怎么添加，谢谢！Top

15 楼lfchen（一条晚起的虫--床上用品[家纺]专卖）回复于 2006-05-19 17:08:34 得分 0

dbsql.Format("INSERT INTO Exp(ID, Np, Pft, Pfpi，mytime)VALUES(%ld,%6.1f,%5.3f,%5.3f,'%s')",dbcount,transdata[0],transdata[1],transdata[2],transdata[3],transdata[4],"15:26:41.341");Top

16 楼fwall（防火墙）回复于 2006-05-19 17:11:44 得分 0

http://community.csdn.net/Expert/topic/4764/4764683.xml?temp=.3682215
新开的帖子，请踊跃参加！Top

17 楼lid0770（卡卡）回复于 2006-05-19 17:14:20 得分 1

BOOL CXXX::OnInitDialog()
{
...
SetTimer(1,1000,0); //设定一秒更新一次
}

void CXXX::OnTimer(UINT_PTR nIDEvent)
{
if (nIDEvent = 1)
{
CTime tm;
CString strTime;
tm = CTime::GetCurrentTime();
strTime = tm.Format("%H:%M:%S");
// 在EDIT控件上显示出来
((CEdit*)GetDlgItem(IDC_EDIT1))->SetWindowText(strTime);
}
}
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18 楼kocs2002（拒绝签名）回复于 2006-05-19 17:16:43 得分 1

CTime t=CTime::GetCurrentTime();Top

19 楼breakind（冰舞,把练街舞的精神拿来编程,必有所成.）回复于 2006-05-19 21:17:59 得分 1

GetLocalTimeTop

20 楼happyna（）回复于 2006-05-20 09:40:35 得分 1

//获取系统时间
CString m_time;
CTime t = CTime::GetCurrentTime();
CString strTime = t.Format("%Y-%m-%d %H:%M:%S");
m_time.Empty();
m_time+=strTime;Top

21 楼boyplayee（）回复于 2006-05-20 11:06:13 得分 1

CTime tm;
CString strTime;
tm = CTime::GetCurrentTime();
strTime = tm.Format("%H:%M:%S");

up this easy way.Top

22 楼fwall（防火墙）回复于 2006-09-07 12:43:45 得分 0

谢谢大家，最近太忙忘记结帐了，马上结！Top

23 楼kite079（风筝）回复于 2006-09-07 12:51:42 得分 5

我有例子，发到邮箱了Top