好用的boll趋势指标 D字一出就进？

N:=20;

M:=2;

MID:=MA(C,N);

UPPER:=MID+M*STD(C,N);

LOWER:=MID-M*STD(C,N);

多空:=C>MID;

STICKLINE(多空,MID,MID,2,0),COLORRED;

STICKLINE(NOT(多空),MID,MID,2,0),COLORCYAN;

U:UPPER,COLORRED,LINETHICK1;

M1:MID,COLORYELLOW,LINETHICK2;

L1:LOWER,COLORCYAN,LINETHICK1;

D信号:=CROSS(MID,C);

K信号:=CROSS(C,MID);

DRAWTEXT(D信号,H*1.01,’K’),COLORGREEN;

DRAWTEXT(K信号,L*0.99,’D’),COLORYELLOW;

STICKLINE(多空,L,H,0.0,1),COLORRED;

STICKLINE(多空,C,O,3,1),COLORRED;

STICKLINE(多空&&C<O,C,O,3 ,0),COLORRED;

STICKLINE(NOT(多空),L,H,0.0,1),COLORGREEN;

STICKLINE(NOT(多空),C,O,3,1),COLORGREEN;

STICKLINE(NOT(多空)&&C<O,C,O,3,0),COLORGREEN;