获取当前系统本地时间,精确到毫秒的实例
实例如下:
#include <sys/timeb.h> #include <chrono> char* cur_time_c(char strDateTime[32]) { struct timeb tp_cur; ftime(&tp_cur); struct tm btm; #ifdef WIN32 localtime_s(&btm, &tp_cur.time); #else localtime_r(&tp_cur.time, &btm); #endif sprintf(strDateTime, "%04d-%02d-%02d %02d:%02d:%02d.%03d", btm.tm_year + 1900, btm.tm_mon + 1, btm.tm_mday, btm.tm_hour, btm.tm_min, btm.tm_sec, tp_cur.millitm); return strDateTime; } char* cur_time_cpp11(char strDateTime[32]) { static const std::chrono::hours = EIGHT_HOURS(8); auto nowLocalTimeCount = std::chrono::system_clock::now().time_since_epoch() + EIGHT_HOURS; std::chrono::hours now_h = std::chrono::duration_cast<std::chrono::hours>(nowLocalTimeCount); std::chrono::minutes now_m = std::chrono::duration_cast<std::chrono::minutes>(nowLocalTimeCount); std::chrono::seconds now_s = std::chrono::duration_cast<std::chrono::seconds>(nowLocalTimeCount); std::chrono::milliseconds now_ms = std::chrono::duration_cast<std::chrono::milliseconds>(nowLocalTimeCount); sprintf(strDateTime, "%02d:%02d:%02d.%03d", now_h % 24, now_m % 60, now_s % 60, now_ms % 1000); return strDateTime; }
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