第十二节 时间函数

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1、Date & TTimee fuuncttionnsCurTiime()Daay()DayyOfWWeekk()DDayOOfYeear()Hoour()LoocallTimme()Minnutee()MMontth()Seccondds()TimmeDaay()TimmeDaayOffWeeek()TimmeDaayOffYeaar()TimmeHoour()TiimeMMinuute()TiimeMMontth()TimmeSeeconnds()TiimeYYearr()YYearr()datetime CurTime()Returrns lasst kknowwn sservvers t

2、timee, nnumbber of seccondds eelappsedd frrom 00:00JJanuuaryy 1, 19970.Samplle if(CurrTimme() - OrdderOOpennTimme()3660) retturnn(0);int Day()Returrns currrennt ddatees dayy off moonthh.Samplle if(Dayy()= 122 | Hoour()117) is_sieestaa=trrue;datetime LocalTime()Returrns loccal commputter timme, nummb

3、err off seeconnds elaapseed ffromm 000:000Jannuarry 11, 119700.Samplle if(SerrverrTimme() - OrdderOOpennTimme()3660) retturnn(0);int Minute()Returrns currrennt mminuute (0,1,22,.59).Samplle if(Minnutee()=155) rretuurn(fiirstt quuartter);int Month()Returrns currrennt mmontth aas nnumbber (1-Jannuarry

4、,22,3,4,55,6,7,88,9,10,11,12).Samplle if(Monnth()=5) rretuurn(fiirstt haalf of yeaar);int Seconds()Returrns currrennt ssecoond (0,1,22,.59).Samplle if(Seccondds()=115) rretuurn(0);int TimeDay(datetimedate)Returrns dayy off moonthh (11 - 31) foor sspeccifiied datte.Parammeteersdate - Datetime is numb

5、er of seconds elapsed since midnight (00:00:00), January 1, 1970.Samplle intt daay = TiimeDDay(D220033.122.311);/ daay iis 331int TimeDayOfWeek(datetimedate)Returrns zerro bbaseed dday of weeek (0-SSundday,1,22,3,4,55,6) foor sspeccifiied datte.Parammeteersdate - Datetime is number of seconds elapse

6、d since midnight (00:00:00), January 1, 1970.Samplle intt weeekdday = TTimeeDayyOfWWeekk(D20004.111.22);/ daay iis 11 - tueesdaayint TimeDayOfYear(voiddate)Returrns dayy (11-1 jannuarry,.,3365(6) - 331 ddeceembeer) of yeaar ffor speeciffiedd daate.Parammeteersdate - Datetime is number of seconds ela

7、psed since midnight (00:00:00), January 1, 1970.Samplle intt daay = TiimeDDayOOfYeear(CurrTimme();int TimeHour(datetimetime)Returrns houur ffor speeciffiedd tiime.Parammeteerstime - Datetime is number of seconds elapsed since midnight (00:00:00), January 1, 1970.Samplle intt h = TTimeeHouur(CCurTTim

8、ee();int TimeMinute(datetimetime)Returrns minnutee foor sspeccifiied timme.Parammeteerstime - Datetime is number of seconds elapsed since midnight (00:00:00), January 1, 1970.Samplle intt m = TTimeeMinnutee(CuurTiime();int TimeMonth(datetimetime)Returrns monnth forr sppeciifieed ttimee.Parammeteerst

9、ime - Datetime is number of seconds elapsed since midnight (00:00:00), January 1, 1970.Samplle intt m = TTimeeMonnth(CurrTimme();int TimeSeconds(datetimetime)Returrns seccondds ffor speeciffiedd tiime.Parammeteerstime - Datetime is number of seconds elapsed since midnight (00:00:00), January 1, 1970

10、.Samplle intt m = TTimeeSeccondds(CCurTTimee();int TimeYear(datetimetime)Returrns yeaar ffor speeciffiedd daate. Reeturrn vvaluues cann bee inn raangee 19970-20337.Parammeteerstime - Datetime is number of seconds elapsed since midnight (00:00:00), January 1, 1970.Samplle intt y = TTimeeYeaar(CCurTTi

11、mee();int Year()Returrns currrennt yyearr.Samplle / retturnn iff daate befforee 1 Mayy 20002if(Yeear()=20002 & MMontth()5) rretuurn(0);日期时间函函数 Datte & Tiime Funnctiionssdatettimee CuurTiime( )返返回当前前时间示示例:if(CuurTiime()-OOrdeerOppenTTimee()3600) rretuurn(0);int DDay()返回回当前日日期示例例:if(Daay()=12 | Houur(

12、)177)iss_siiestta=ttruee;datettimee LoocallTimme()返回当当前电脑脑时间示示例:if(LoocallTimme()-OrrderrOpeenTiime()3360) reeturrn(00);int MMinuute()返回回当前分分钟示例例:if(Miinutte()=115)rretuurn(fiirstt quuartter);int MMontth()返回当当前月份份示例:if(Moonthh()=5)retturnn(ffirsst hhalff off yeear);int SSecoondss()返返回当前前秒数示示例:if(See

13、connds()=15)retturnn(0);int TTimeeDayy( ddateetimme ddatee)返回回输入日日期中的的日期: 输入入参数ddatee - 输入日日期示例:int dday=TimmeDaay(DD20003.12.31);/ dday is 31int TTimeeDayyOfWWeekk( ddateetimme ddatee)返回回输入日日期中的的日期是是星期几几 (00-6) : 输入入参数ddatee - 输入日日期示例:int wweekkdayy=TiimeDDayOOfWeeek(D220044.111.2);/ dday is 2 - tu

14、uesddayint TTimeeDayyOfYYearr( ddateetimme ddatee)返回回输入日日期中的的日期在在当年中中的第几几天: 输入入参数ddatee - 输入日日期示例:int dday=TimmeDaayOffYeaar(CCurTTimee();int TTimeeHouur( dattetiime timme)返返回输入入日期中中的小时时: 输入入参数ddatee - 输入日日期示例:int hh=TiimeHHourr(CuurTiime();int TTimeeMinnutee( ddateetimme ttimee)返回回输入日日期中的的分钟: 输入入参数

15、ddatee - 输入日日期示例:int mm=TiimeMMinuute(CurrTimme();int TTimeeMonnth( daatettimee tiime)返回输输入日期期中的月月份: 输入入参数ddatee - 输入日日期示例:int mm=TiimeMMontth(CCurTTimee();int TTimeeSeccondds( dattetiime timme)返返回输入入日期中中的秒钟钟: 输入入参数ddatee - 输入日日期示例:int mm=TiimeSSecoondss(CuurTiime();int TTimeeYeaar( dattetiime timme)返返回输入入日期中中的年份份: 输入入参数ddatee - 输入日日期示例:int yy=TiimeYYearr(CuurTiime();int TTimeeYeaar( dattetiime timme)返返回当前前年份示示例:/ reeturrn iif ddatee beeforre 11 Maay 220022if(Yeaar()=220022 & Moonthh()5)rretuurn(0);