void ReqQryTrade()
{
ThostFtdcQryTradeField req = new ThostFtdcQryTradeField();
//经纪公司代码
req.BrokerID = BROKER_ID;
//交易所代码
req.ExchangeID = INVESTOR_ID;
//合约代码
req.InstrumentID = INSTRUMENT_ID;
//投资者代码
req.InvestorID = INVESTOR_ID;
//成交编号
// TradeID;
int iResult = api.ReqQryTrade(req, ++iRequestID);
Console.WriteLine("--->>> 交易查询请求: " + ((iResult == 0) ? "成功" : "失败"));
}