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

AbandonFrozen	CThostFtdcSyncingInvestorPositionField
BrokerID	CThostFtdcSyncingInvestorPositionField
CashIn	CThostFtdcSyncingInvestorPositionField
CloseAmount	CThostFtdcSyncingInvestorPositionField
CloseProfit	CThostFtdcSyncingInvestorPositionField
CloseProfitByDate	CThostFtdcSyncingInvestorPositionField
CloseProfitByTrade	CThostFtdcSyncingInvestorPositionField
CloseVolume	CThostFtdcSyncingInvestorPositionField
CombLongFrozen	CThostFtdcSyncingInvestorPositionField
CombPosition	CThostFtdcSyncingInvestorPositionField
CombShortFrozen	CThostFtdcSyncingInvestorPositionField
Commission	CThostFtdcSyncingInvestorPositionField
ExchangeMargin	CThostFtdcSyncingInvestorPositionField
FrozenCash	CThostFtdcSyncingInvestorPositionField
FrozenCommission	CThostFtdcSyncingInvestorPositionField
FrozenMargin	CThostFtdcSyncingInvestorPositionField
HedgeFlag	CThostFtdcSyncingInvestorPositionField
InstrumentID	CThostFtdcSyncingInvestorPositionField
InvestorID	CThostFtdcSyncingInvestorPositionField
LongFrozen	CThostFtdcSyncingInvestorPositionField
LongFrozenAmount	CThostFtdcSyncingInvestorPositionField
MarginRateByMoney	CThostFtdcSyncingInvestorPositionField
MarginRateByVolume	CThostFtdcSyncingInvestorPositionField
OpenAmount	CThostFtdcSyncingInvestorPositionField
OpenCost	CThostFtdcSyncingInvestorPositionField
OpenVolume	CThostFtdcSyncingInvestorPositionField
PosiDirection	CThostFtdcSyncingInvestorPositionField
Position	CThostFtdcSyncingInvestorPositionField
PositionCost	CThostFtdcSyncingInvestorPositionField
PositionDate	CThostFtdcSyncingInvestorPositionField
PositionProfit	CThostFtdcSyncingInvestorPositionField
PreMargin	CThostFtdcSyncingInvestorPositionField
PreSettlementPrice	CThostFtdcSyncingInvestorPositionField
SettlementID	CThostFtdcSyncingInvestorPositionField
SettlementPrice	CThostFtdcSyncingInvestorPositionField
ShortFrozen	CThostFtdcSyncingInvestorPositionField
ShortFrozenAmount	CThostFtdcSyncingInvestorPositionField
StrikeFrozen	CThostFtdcSyncingInvestorPositionField
StrikeFrozenAmount	CThostFtdcSyncingInvestorPositionField
TodayPosition	CThostFtdcSyncingInvestorPositionField
TradingDay	CThostFtdcSyncingInvestorPositionField
UseMargin	CThostFtdcSyncingInvestorPositionField
YdPosition	CThostFtdcSyncingInvestorPositionField