VAR1:=HHV(HIGH,18);VAR2:=LLV(LOW,18);DIF:EMA((CLOSE-VAR2)/(VAR1-VAR2)*100,18),COLORGREEN;P1:=EMA((CLOSE-VAR2)/(VAR1-VAR2)*100,5);DEA:P1,COLORRED,LINETHICK2;:OSS(DEA,DIF) AND DIF<22,COLORYELLOW,LINETHICK0;DRAWTEXT(CROSS(DEA,DIF) AND 买入,20,'买入'),COLORRED;