成员的完整列表，这些成员属于 CThostFtdcMarketDataBaseField,包括所有继承而来的类成员

PreClosePrice	CThostFtdcMarketDataBaseField
PreDelta	CThostFtdcMarketDataBaseField
PreOpenInterest	CThostFtdcMarketDataBaseField
PreSettlementPrice	CThostFtdcMarketDataBaseField
TradingDay	CThostFtdcMarketDataBaseField