FFD:=Ema((C-REF(C,1))/REF(C,3),10)*100; A1:=SMA(MAX(C-REF(C,1),0),24,1)/SMA(Abs(C-REF(C,1)),24,1)*100; 龙头启动:=(A1>65)*(A1-65)/10+2; 龙头股:FILTER(BArslAstCOUNT(龙头启动>2)=1 AND FFD>1.9,5);