通达信黄金买点指标－－极好的公式

TX80:80,POINTDOT COLORYELLOW;
DX20:20,POINTDOT COLORGREEN;
VAR1:=LLV(LOW,21);
VAR2:=HHV(HIGH,21);
均价K: EMA((CLOSE-VAR1)/(VAR2-VAR1)*100,8),COLORYELLOW ;
均价D: EMA(0.667*REF(均价K,1)+0.333*均价K,2),COLORWHITE;