XG1:=(HHV(HIGH,20)/LLV(LOW,20)-1)*100; XG2:=XG1<=12; XG3:=(REF(CLOSE,4)-CLOSE)/REF(CLOSE,4)*100>=8; XG4:=REF(HIGH,2)>REF(HIGH,1) AND HIGH>REF(HIGH,1) AND REF(LOW,2)>REF(LOW,1) AND LOW>REF(LOW,1); XG5:=BARSLAST(XG3); XG6:=EXIST(XG2,XG5+8); XG7:=XG4 AND XG5>=1 AND XG5<=6 AND XG6; 急跌挖坑X:FILTER(XG7,5);