void ReqQryTradingAccount()
{
ThostFtdcQryTradingAccountField req = new ThostFtdcQryTradingAccountField();
req.BrokerID = BROKER_ID;
req.InvestorID = INVESTOR_ID;
int iResult = api.ReqQryTradingAccount(req, ++iRequestID);
Console.WriteLine("--->>> 请求查询资金账户: " + ((iResult == 0) ? "成功" : "失败"));
}