��ͷ��-ͨ���Ÿ�ͼѡ�� CD1:=(MIN(CLOSE,OPEN)-LOW)/(HIGH-LOW)>0.57; CD2:=LOW/MIN(CLOSE,OPEN)<=0.97; EMA9:=EMA(CLOSE,9); XSLDN:=EMA(EMA9*0.86,5); CD3:=C<=XSLDN; CD4:=REF(C,1)/REF(XSLDN,1)<0.98; ��ͷ:C/REF(C,1)>0.99 AND CD1 AND CD2 AND CD3 AND CD4;