通达信神奇布林线（布林带类）指标公式

买卖信号

1. **减仓信号**：C>=MID AND REF(开口,1)=HHV(开口,20)，在UPPER位置显示"减仓"（绿色） 2. **加仓信号**：C>=MID AND REF(相离,1)=LLV(相离,5)，在MID位置显示"加仓" 3. **开始建仓信号**：FILTER(股价多头,20)，其中股价多头=C>MA(C,5) AND MA(C,5)>MA(C,10) AND MA(C,10)>MA(C,20)，在LOOW*0.95位置显示"开始建仓"（红色），同时在LOWER位置显示红色图标(1) 4. **空仓观望信号**：CROSS(MID,C)，在UP位置显示"空仓观望"（黄色），同时在UPPER位置显示黄色图标(2)

用法

该指标是一个基于布林带原理的趋势型指标。21日均线（MID）为中轴，上轨UPPER2和下轨LOWER2为内通道（1.96倍标准差），外通道UP2和LOOW2为外轨（2.56倍标准差）。当股价在MID上方运行且K线收阳时显示紫色上涨趋势带，在MID下方时显示灰色下跌趋势带。操作上可参考：股价站上21日均线且形成均线多头排列时考虑建仓，股价跌破21日均线时考虑空仓。该指标结合了趋势判断和均线多头信号，适合中短线趋势交易，使用时需注意假突破风险，建议结合其他指标确认。

公式源码

MID2 :=  MA(CLOSE,21),COLORWHITE;
UPPER2:=MID2 + 1.96*STD(CLOSE,21),COLORYELLOW;
LOWER2:=MID2 - 1.96*STD(CLOSE,21),COLORYELLOW;
UP2:=MID2 + 2.56*STD(CLOSE,21),COLORFF00FF;
LOOW2:=MID2 - 2.56*STD(CLOSE,21),COLORFF00FF;
{上升趋势}
STICKLINE(C>=MID2,MID2,UP2,2,0),COLOR330066;
{下降趋势}
STICKLINE(C<MID2,MID2,LOOW2,2,0),COLOR545454;
MID:MID2,COLORWHITE;
UPPER:UPPER2,COLORYELLOW;
UP:UP2,COLORFF00FF;
LOWER:LOWER2,COLORYELLOW;
LOOW:LOOW2,COLORFF00FF;
开口:=UP-LOOW;
相离:=C-MID;
DRAWTEXT(C>=MID AND REF(开口,1)=HHV(开口,20),UPPER,'减仓'),COLOR00FF00;
DRAWTEXT(C>=MID AND REF(相离,1)=LLV(相离,5),MID,'加仓');
股价多头:=C>MA(C,5) AND MA(C,5)>MA(C,10) AND MA(C,10)>MA(C,20);
DRAWTEXT(FILTER(股价多头,20),LOOW*0.95,'开始建仓'),COLORRED;
DRAWICON(FILTER(股价多头,20),LOWER,1),COLORRED;
DRAWTEXT(crOSS(MID,C),UP,'空仓观望'),COLORYELLOW;
DRAWICON(CROSS(MID,C),UPPER,2),COLORYELLOW;
{k线}
{STICKLINE((CLOSE > OPEN),CLOSE,OPEN,5.2,0),COLOR070084;}
STICKLINE((CLOSE > OPEN),CLOSE,OPEN,4,1),COLOR0000A3;
STICKLINE((CLOSE > OPEN),CLOSE,OPEN,3.5,0),COLOR000033;
STICKLINE((CLOSE > OPEN),CLOSE,OPEN,3,0),COLOR000066;
STICKLINE((CLOSE > OPEN),CLOSE,OPEN,2.0,0),COLOR000099;
STICKLINE((CLOSE > OPEN),CLOSE,OPEN,1.5,0),COLOR0000CC;
STICKLINE((CLOSE > OPEN),CLOSE,OPEN,1.0,0),COLOR0000FF;
STICKLINE((CLOSE > OPEN),CLOSE,OPEN,0.5,0),COLORCC66FF;
STICKLINE((CLOSE > OPEN),OPEN,LOW,0.3,0),COLORRED;
STICKLINE((CLOSE > OPEN),CLOSE,HIGH,0.3,0),COLORRED;
{STICKLINE((CLOSE = OPEN AND C>REF(C,1)),CLOSE,OPEN,5.2,0),COLOR070084;}
STICKLINE((CLOSE = OPEN AND C>REF(C,1)),CLOSE,OPEN,4,1),COLOR0000A3;
STICKLINE((CLOSE = OPEN AND C>REF(C,1)),CLOSE,OPEN,3.5,0),COLOR0000B7;
STICKLINE((CLOSE = OPEN AND C>REF(C,1)),CLOSE,OPEN,3,0),COLOR0000CD;
STICKLINE((CLOSE = OPEN AND C>REF(C,1)),CLOSE,OPEN,2.0,0),COLOR0000E9;
STICKLINE((CLOSE = OPEN AND C>REF(C,1)),CLOSE,OPEN,1.5,0),COLOR0754E9;
STICKLINE((CLOSE = OPEN AND C>REF(C,1)),CLOSE,OPEN,1.0,0),COLOR076EF3;
STICKLINE((CLOSE = OPEN AND C>REF(C,1)),CLOSE,OPEN,0.5,0),COLOR077BF3;
STICKLINE((CLOSE = OPEN AND C>REF(C,1)),OPEN,LOW,0.3,0),COLOR0000CD;
STICKLINE((CLOSE = OPEN AND C>REF(C,1)),CLOSE,HIGH,0.3,0),COLOR0000CD;
{STICKLINE((OPEN > CLOSE),CLOSE,OPEN,5.2,0),COLORFF5B00;}
STICKLINE((OPEN > CLOSE),CLOSE,OPEN,4,1),COLORFF6C00;
STICKLINE((OPEN > CLOSE),CLOSE,OPEN,3.5,0),COLORFF7B00;
STICKLINE((OPEN > CLOSE),CLOSE,OPEN,2,0),COLORFF9C00;
STICKLINE((OPEN > CLOSE),CLOSE,OPEN,1.5,0),COLORFFBE00;
STICKLINE((OPEN > CLOSE),CLOSE,OPEN,1,0),COLORFFCC00;
STICKLINE((OPEN > CLOSE),CLOSE,OPEN,0.5,0),COLORFFFF00;
STICKLINE((OPEN > CLOSE),CLOSE,LOW,0.3,0),COLORFF9C00;
STICKLINE((OPEN > CLOSE),OPEN,HIGH,0.3,0),COLORFF9C00;
{STICKLINE((OPEN = CLOSE AND C<REF(C,1)),CLOSE,OPEN,5.2,0),COLORFF5B00;}
STICKLINE((OPEN = CLOSE AND C<REF(C,1)),CLOSE,OPEN,4,1),COLORFF6C00;
STICKLINE((OPEN = CLOSE AND C<REF(C,1)),CLOSE,OPEN,3.5,0),COLORFF7B00;
STICKLINE((OPEN = CLOSE AND C<REF(C,1)),CLOSE,OPEN,2,0),COLORFF9C00;
STICKLINE((OPEN = CLOSE AND C<REF(C,1)),CLOSE,OPEN,1.5,0),COLORFFBE00;
STICKLINE((OPEN = CLOSE AND C<REF(C,1)),CLOSE,OPEN,1,0),COLORFFCC00;
STICKLINE((OPEN = CLOSE AND C<REF(C,1)),CLOSE,OPEN,0.5,0),COLORFFFF00;
STICKLINE((OPEN = CLOSE AND C<REF(C,1)),CLOSE,LOW,0.3,0),COLORFF9C00;
STICKLINE((OPEN = CLOSE AND C<REF(C,1)),OPEN,HIGH,0.3,0),COLORFF9C00;