主题：buy（）函数不能指定某个产品

a1:STKINDI('IF07' ,'rsi' ,0, 21,3);
a2:STKINDI('IH07' ,'rsi' ,0 ,21,3);
a3:a1-a2;

JC:="IF07$CLOSE"-"IH07$CLOSE";

//交易系统
//突破0轴
ss:=a3>0;
xj:=a3<0;

if ss then
begin
   开多:TBUY(tbuyholdingex('','if07',2)=0,1,LMT,DYNAINFO2(7,'if07'),0,'','IF07');
   //XX:BUY(SS,1,MARKET);
   开空:TBUYSHORT(tsellholdingex('','ih07',2)=0,1,LMT,DYNAINFO2(7,'ih07'),0,'','IH07');
   平空2:TSELLSHORT(1,0,mkt,0,0,'','IF07');
   平多2:TSELL(1,0,mkt,0,0,'','IH07');
end

IF xj  THEN
BEGIN
   平空:TSELLSHORT(1,0,mkt,0,0,'','IH07');
   平多:TSELL(1,0,mkt,0,0,'','IF07');

   开多2:TBUY(tbuyholdingex('','ih07',2)=0,1,LMT,DYNAINFO2(7,'ih07'),0,'','IH07');
   开空2:TBUYSHORT(tsellholdingex('','if07',2)=0,1,LMT,DYNAINFO2(7,'if07'),0,'','IF07');

END