public void ReqQryInvestorPosition() { Thread.Sleep(1000); ThostFtdcQryInvestorPositionField req = new ThostFtdcQryInvestorPositionField(); req.BrokerID = BROKER_ID; req.InvestorID = INVESTOR_ID; req.InstrumentID = INSTRUMENT_ID; int ret = trader.ReqQryInvestorPosition(req, ++iRequestID); HandleStatusInternal("CTP请求查询投资者持仓:" + (ret == 0 ? "成功" : "失败,返回代码" + ret)); }