学会这个方法，抓10倍大牛股的概率提升10倍>>

N:=24;P:=2;

MID:MA(c,N);

UPPER:MID + P*std(c,N);

LOWER:MID - P*STD(c,N);

dRAWTEXTABS( 200, 0,'上轨红色代表布林张口，绿色表收口;中轨红表示趋势向上，绿表趋势向下');

DRAWTEXTABS,linethick1,COLOR00EEff;

if (c>o or(c=o and c>ref(c,1))) then

begin

STICKLINE(CLOSE,high,low,0.1,1),colorred;

STICKLINE(CLOSE,open,close,4,1),colorred;

end

if (c<o or(c=o and c<ref(c,1))) then

begin

STICKLINE(CLOSE,high,low,0.1,1),coloraaee00;

STICKLINE(CLOSE,open,close,4,0),coloraaee00;

end;

上下轨比值:upper/lower,linethick0;

PARTLINE(upper,上下轨比值>ref(上下轨比值,1),rgb(255,0,0),上下轨比值<ref(上下轨比值,1),rgb(0,255,0));

PARTLINE(mid,mid>ref(mid,1),rgb(255,0,0),mid<ref(mid,1),rgb(0,255,0));