将成交量指标中黄线上穿紫线时做一个预警

编写要求：

P1 1 100 20 P2 1 100 5 P3 1 100 10 A1:=H-L; B1:=C-O; C1:=(B1/A1); DX:=V*C1/10000; DX1:EMA(EMA(DX,P1),3)*P1,COLORYELLOW; DX2:MA(DX1,P2),COLORFF00FF; DX3:MA(DX1,P3),COLORCYAN; STICKLINE(DX>0,0,DX,2,0),COLORRED; STICKLINE(DX<0,0,DX,2,0),COLORGREEN;

解答：

?P1 :=20; P2 :=5;

A1:=H-L;