MAV:=(2*C+H+L)/4;
Var1:=LLV(LOW,34);
Var2:=HHV(HIGH,34);
SK:= EMA((MAV-Var1)/(Var2-Var1)*100,13);
SD: EMA(0.667*REF(SK,1)+0.333*SK,2);
高抛:80, POINTDOT;
低吸:20, POINTDOT;
强弱分界:50, POINTDOT;
DRAWTEXT(crOSS(SD,20),低吸,'●买入↑'),coloryellow,linethick3;
DRAWTEXT(CROSS(80,SD),高抛,'●出逃↓'),COLORF5F5DC,LINETHICK3;
