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

BrokerID	CThostFtdcVerifyInvestorPasswordField
InvestorID	CThostFtdcVerifyInvestorPasswordField
Password	CThostFtdcVerifyInvestorPasswordField