I changed this indicator to Wenhua Financial Futures.

VARA 1:=LLV (low,19);

VARB 1:=HHV (high,19);

Support: VARA 1, COLOR00FF00

Resistance: VARB 1, COLOR0000CC.

VAR 1:=SAR( 10，2，20)；

{The main picture shows the way of buying and selling}

DRAWTEXT(CROSS(CLOSE，VAR 1)，LOW*0.98，'▲')，COLORFF00FF

drawtext(cross(close,var 1),low*0.975,'∣'),colorff00ff；

DRAWTEXT(CROSS(CLOSE，VAR 1)，LOW*0.975，' ‖')，COLORFF00FF

drawtext(cross(close,var 1),low*0.97,'∣'),colorff00ff；

DRAWTEXT(CROSS(CLOSE，VAR 1)，LOW*0.97，' ‖')，COLORFF00FF

drawtext(cross(close,var 1),low*0.965,'∣'),colorff00ff；

DRAWTEXT(CROSS(CLOSE，VAR 1)，LOW*0.965，' ‖')，COLORFF00FF

Adhesion line (closed & gtVAR 1, low, high, 0. 1, 0), COLORRED

Adhesive line (CLOSE & gtVAR 1, close, OPEN, 4.5, 0), COLOR0000AA.

Adhesive line (CLOSE & gtVAR 1, close, OPEN, 3,0), COLOR0000CC.

Adhesive line (CLOSE & gtVAR 1, close, OPEN, 2,0), COLOR0000DD.

Adhesion line (CLOSE & gtVAR 1, close, OPEN, 1, 0), COLOR0000FF.

DRAWTEXT(CROSS(VAR 1，CLOSE)，HIGH* 1.02，'▼')，COLOR00FF00

drawtext(cross(var 1,close),high* 1.025,'∣'),color00ff00；

DRAWTEXT(CROSS(VAR 1，CLOSE)，HIGH* 1.025，' ‖')，COLOR00FF00

drawtext(cross(var 1,close),high* 1.03,'∣'),color00ff00；

DRAWTEXT(CROSS(VAR 1，CLOSE)，HIGH* 1.03，' ‖')，COLOR00FF00

drawtext(cross(var 1,close),high* 1.035,'∣'),color00ff00；

DRAWTEXT(CROSS(VAR 1，CLOSE)，HIGH* 1.035，' ‖')，COLOR00FF00

Adhesion line (var1> CLOSE，CLOSE，OPEN， 1，0)，COLOREEEE00

Adhesion line (var1> CLOSE，CLOSE，OPEN，2，0)，COLORDDDD00

Adhesion line (var1> CLOSE，CLOSE，OPEN，3，0)，COLORCCCC00

Adhesion line (var1> CLOSE，CLOSE，OPEN，4.5，0)，COLORAAAA00

Adhesion line (var1> Close, low, high, 0. 1, 0), COLORFFFF00