是否可以在时间模式下将其值设置为0?我试过了
CTime time;
m_Time.setTime(&time);
,但显示1:0:0。有什么建议吗?
答案 0 :(得分:2)
是的,有可能,请参阅下面的strTime,其值为“0:0:0”。但是,如果您正在寻找时间间隔而不是实际时间,请更好地使用CTimeSpan,请参阅下文。
time_t date1_t, date2_t;
tm date_tm;
date_tm.tm_hour =0;
date_tm.tm_min =0;
date_tm.tm_mon =0;
date_tm.tm_sec =0;
date_tm.tm_wday =0; //Day of week (0-6; Sunday = 0)
date_tm.tm_yday =1;
date_tm.tm_year =97;
date_tm.tm_isdst =-1; //Positive if Daylight Saving Time is in effect;
//0 if Daylight Saving Time is not in effect;
//Negative if status of DST is unknown.
date_tm.tm_mday =0;
date2_t = mktime(&date_tm);
date_tm.tm_mday =0;
date_tm.tm_isdst =0;
date1_t = mktime(&date_tm);
CTime time1(date1_t), time2(date2_t);
CTimeSpan ts = time2 - time1;
CString strTime = time1.Format("%H:%M:%S");