夸周期引用數據實現不了開倉嗎？

MAB:=ma(close,10);
MAD:=ma(close,20);

MAC:=STKINDI('','MAB',0,5,-1);
MAE:=STKINDI('','MAD',0,5,-1);

MAD:=STKINDI('','MAB',0,5,-2);
MAF:=STKINDI('','MAD',0,5,-2);

if DATATYPE<>2 then exit;

if holding=0 and MAD<MAF and MAC>MAE then
   begin
   MyLongPriceA:=open;
   buy(1,1,LIMITR,MyLongPriceA);
   end;

if holding>0 and MAD>MAF and MAC<MAE then
   begin
   MyLongExitPriceA:=open;
   sell(1,1,LIMITR,MyLongExitPriceA);
   end;

您好，跨周期引用寫的不對，先建一個公式命名AB  再引用