经典的Bollinger系统留下两个问题，一个是时间窗需要多长，一个是带宽需要多宽。自适应布林线解决了上述2个问题。它的唯一的直接参数就是LBD(LookBackDays)，且随着市场的变化而变化。{自适应布林带 DZH}
VARIABLE:CLA=60,FLA=20,BBT=2;
VARIABLE:LBD=20;
IF BARPOS>=60 THEN BEGIN
TV:=STD(Close,30);
YV:=STD(REF(close,1),30);
deltaV:=(TV-YV)/TV;
LBD:=LBD*(1+deltaV);
LBD:=INTPART(LBD);
LBD:=Min(LBD,CLA);
LBD:=max(LBD,FLA);
MID:MA(CLOSE,LBD);
UP:MID + BBT*STD(CLOSE,LBD);
DN:MID - BBT*STD(CLOSE,LBD);
end;
STICKLINE(C>O,H,C,0,1),COLORRED;
STICKLINE(C>O,L,O,0,1),COLORRED;
STICKLINE(C>O,O,C,8,1),COLORRED;
STICKLINE(C<O,H,O,0,0),COLORCYAN;
STICKLINE(C<O,L,C,0,0),COLORCYAN;
STICKLINE(C<O,O,C,8,0),COLORCYAN;
STICKLINE(C=O,H,C,0,1),COLORWHITE;
STICKLINE(C=O,L,O,0,1),COLORWHITE;
STICKLINE(C=O,O,C,8,1),COLORWHITE;
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