X_1:=90; X_2:=3; X_3:=REF(LLV(LOW,X_1),X_2); X_4:=REFDATE(X_3,DATE);{九毛八公式指标网www.9m8.cn} 抄底:X_4=LOW AND (CLOSE-LOW OPEN-CLOSE OR OPEN-LOW CLOSE-OPEN);