Get the local time of the current system, accurate to milliseconds, get the current millisecond

Get the local time of the current system, accurate to milliseconds, get the current millisecond

 1 #include <sys/timeb.h> 2 #include <chrono> 3  4 char* cur_time_c(char strDateTime[32]) 5 { 6     struct timeb tp_cur; 7     ftime(&tp_cur); 8  9     struct tm btm;10 11 #ifdef WIN3212     localtime_s(&btm, &tp_cur.time);13 #else14     localtime_r(&tp_cur.time, &btm);15 #endif16 17     sprintf(strDateTime, "%04d-%02d-%02d %02d:%02d:%02d.%03d", 18         btm.tm_year + 1900, btm.tm_mon + 1, btm.tm_mday,19         btm.tm_hour, btm.tm_min, btm.tm_sec, tp_cur.millitm);20 21     return strDateTime;22 }23 24 25 char* cur_time_cpp11(char strDateTime[32])26 {27     static const std::chrono::hours = EIGHT_HOURS(8);28 29     auto nowLocalTimeCount 30         = std::chrono::system_clock::now().time_since_epoch()31         + EIGHT_HOURS;32 33     std::chrono::hours now_h34         = std::chrono::duration_cast<std::chrono::hours>(nowLocalTimeCount);35     std::chrono::minutes now_m36         = std::chrono::duration_cast<std::chrono::minutes>(nowLocalTimeCount);37     std::chrono::seconds now_s38         = std::chrono::duration_cast<std::chrono::seconds>(nowLocalTimeCount);39     std::chrono::milliseconds now_ms40         = std::chrono::duration_cast<std::chrono::milliseconds>(nowLocalTimeCount);41 42     sprintf(strDateTime, "%02d:%02d:%02d.%03d", 43         now_h % 24, now_m % 60, now_s % 60, now_ms % 1000);44 45     return strDateTime;46 }