VAR2:=LLV(LOW,33);
VAR3:=HHV(HIGH,21);
VAR4:=EMA((CLOSE-VAR2)/(VAR3-VAR2)*100,20)*0.998;
低点:-20, COLORWHITE;
强弱线:-50, COLORYELLOW;
顶点:-80, COLORCYAN;
当前安全度: EMA(0.667*REF(VAR4,1)+0.333*VAR4,1)-100,LINETHICK2 ,COLORRED;
IF(当前安全度<= -50,当前安全度,DRAWNULL),LINETHICK2 ,COLORYELLOW;
IF(当前安全度<= -80,当前安全度,DRAWNULL),CIRCLEDOT,LINETHICK3 ,COLORGREEN;
IF(当前安全度>= -20,当前安全度,DRAWNULL),CIRCLEDOT,LINETHICK3 ,COLORMAGENTA;
