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

ActionDay	CThostFtdcMarketDataField
ClosePrice	CThostFtdcMarketDataField
CurrDelta	CThostFtdcMarketDataField
ExchangeID	CThostFtdcMarketDataField
ExchangeInstID	CThostFtdcMarketDataField
HighestPrice	CThostFtdcMarketDataField
InstrumentID	CThostFtdcMarketDataField
LastPrice	CThostFtdcMarketDataField
LowerLimitPrice	CThostFtdcMarketDataField
LowestPrice	CThostFtdcMarketDataField
OpenInterest	CThostFtdcMarketDataField
OpenPrice	CThostFtdcMarketDataField
PreClosePrice	CThostFtdcMarketDataField
PreDelta	CThostFtdcMarketDataField
PreOpenInterest	CThostFtdcMarketDataField
PreSettlementPrice	CThostFtdcMarketDataField
SettlementPrice	CThostFtdcMarketDataField
TradingDay	CThostFtdcMarketDataField
Turnover	CThostFtdcMarketDataField
UpdateMillisec	CThostFtdcMarketDataField
UpdateTime	CThostFtdcMarketDataField
UpperLimitPrice	CThostFtdcMarketDataField
Volume	CThostFtdcMarketDataField