begt:=20210705T;
  endt:=20210713T;
  //setsysparam(PN_Precision(),2);//结果保留2位小数
  Tarr:=MarketTradeDayQk(begt,endt);
  ret:=array();
  for i:=0 to length(Tarr)-1 do
  begin
   Endt:=Tarr[i];
   dEndt:=datetoint(Endt);
   stocks:=array('T2109','T2112');//指定合约
   //或取指定日合约，比如指定日还在市交易的国债期货
  //stocks:=GetFuturesID('T;TF;TS',Endt);
   for j:=0 to length(stocks)-1 do
   begin
     setsysparam(pn_stock(),stocks[j]);
     t:= BondFutureBasicindicators(Endt,1,0,-1);
     if istable(t) then
       ret&=select dEndt as '截止日',* from t end;
   end
  end
  return ret;