用这个算日期差
CTime time1 = CTime::GetCurrentTime(); CTime time2 = CTime::GetCurrentTime(); CTimeSpan time3 = time2 - time1; 或者:
DWORD dwBeginTime = ::GetTickCount() // OR timeGetTime();
DWORD dwEndTime = ::GetTickCount(); DWORD dwSpaceTime = dwEndTime - dwBeginTime; 得到的是毫秒数。
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