送上突破型缺口选股公式，捕捉主升波段的买入法

a1:=COUNT(CLOSE,0)>20 AND (HHV(CLOSE,20)-LLV(CLOSE,20))/LLV(CLOSE,20)<=0.25;

(REF(HHV(c,20),1)<LOW and LOW>REF(HIGH,1) and REF(a1,1));