QT how to quickly get the current system of year, month, day,, points, seconds, milliseconds integer value, including the window system and Linux system

Although QDateTime can obtain the millisecond time, but I don't know how to quickly break out the seven integer value (although you can pass the toString (... ) function to obtain the string, but it is not I need to quickly get seven integer value goal!)

CodePudding user response:

QDateTime can draw on the date and time () () to the QDate and QTime
QDate a year (), month (), day ()
QTime hour (), minute (), second (), msec ()

CodePudding user response:

CurrentDateTime getTime ()
{
//year - month - day (YYmmdd) : minutes: seconds (HHMMSS) milliseconds (MS) microseconds (USec) nanoseconds (NSec)
Time_t timep;
Time (& amp; Timep);
CurrentDateTime date;

Strftime (date) YMD_Str, sizeof (date. YMD_Str), "% % m - Y % d", a localtime (& amp; Timep));
Strftime (date) HMS_Str, sizeof (date. HMS_Str), "M H % : % : % S", a localtime (& amp; Timep));

//ms
Struct timeb TB;
Ftime (& amp; TB);
Sprintf (date. MS_Str, "% 3 d", TB. Millitm);

//ms
Struct timeval usectime;
//long usec=0;
The gettimeofday (& amp; Usectime, NULL);
//usec=usectime tv_sec * 1000000 + usectime tv_usec;
//printf (" ldus usectime: %, % ldus \ n ", usec, usectime. Tv_usec);//340483 us
Snprintf (date. USec_Str, 8, "% 6 ld," usectime. Tv_usec);

//nanosecond
//long nsec=0;
Struct timespec nsectime;
Clock_gettime (CLOCK_REALTIME, & amp; Nsectime);
//nsec.=nsectime tv_sec * 1000000000 + nsectime tv_nsec;
//printf (" LDNS nsectime: %, % LDNS \ n ", nsec, nsectime. Tv_nsec);//340487042 ns
Snprintf (date) NSec_Str, 14, "% 09 ld," nsectime. Tv_nsec);
return date;
}