1. 调用Util::countDays(year,month,day)的返回值填入date,例如:
int days = Util::countDays(2023, 9, 22);
得到days为19622
2. 可以用Util::createTimestamp 或 Util::parseConstant,例如
Constant* p= Util::createTimestamp(2023, 9, 22, 9, 52, 34, 0); Constant* seconds= Util::parseConstant(DT_TIMESTAMP, "2022.09.22T09:52:34"); cout << seconds->getLong() <<","<< p->getLong()<<endl;