void GetCurrentTime()
{
struct tm t; //tm結構指針
time_t now; //聲明time_t類型變量
time(&now); //獲取系統日期和時間
localtime_s(&t, &now); //獲取當地日期和時間
char szResult[20] = "\0";
sprintf_s(szResult, 20, "%.4d-%.2d-%.2d %.2d:%.2d:%.2d", t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, t.tm_hour, t.tm_min,t.tm_sec); //產生"123"
cout << szResult << endl;
}