XA_1:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100; XA_2:=SMA(XA_1,3,1); XA_3:=Sma(XA_2,3,1); XA_4:=3*XA_2-2*XA_3; 红箭头2:crOSS(XA_4,0);