[通达信指标]三线趋势买卖主图指标，方向提示笑脸红绿箭头

VAR4:=(LOW+HIGH+CLOSE)/3; 

趋势: MA(VAR4,15),LINETHICK2,COLORMAGENTA; 

压力:HHV(趋势,13),COLORRED,LINETHICK2; 

IF(压力>REF(压力,1),压力,DRAWNULL),COLORRED,LINETHICK2;

IF(压力<=REF(压力,1),压力,DRAWNULL),COLORBLUE,LINETHICK2;

支撑:LLV(趋势,13),LINETHICK2,COLORYELLOW; 

IF(支撑>REF(支撑,1),支撑,DRAWNULL),COLORYELLOW,LINETHICK2;

IF(支撑<=REF(支撑,1),支撑,DRAWNULL),COLORGREEN,LINETHICK2;

DD:=CROSS(趋势=压力,0.5);

KK:=CROSS(趋势=支撑,0.5);

DRAWICON(DD,L,1);

DRAWICON(KK,H,2);