安全线:20,colorwhite;平衡线:50,colorcyan;风险线:80,colormagenta;Var3:=LLV(LOW,18);Var4:=HHV(HIGH,18);Var5:=EMA((CLOSE-Var3)/(Var4-Var3)*100,13);运行趋势: EMA(0.618*REF(Var5,1)+0.382*Var5,3),coloryellow;