通达信BOLL防套技（布林带类）指标公式

买卖信号

**买入信号：** 1. `DRAWICON(CROSS(C,BOLL),L,7)` - 价格上穿BOLL中轨时买入（图标7） 2. `DRAWTEXT(CROSS(C,LOWER),L,1)` - 价格下穿BOLL下轨时买入（文字"1"，属于抄底信号） 3. `VAR19（黄色底买）` - 连续下跌后出现上涨，视为底部买入信号 4. `急跌关注` - (CLOSE-MA(CLOSE,34))/MA(CLOSE,34)*100<-14，急跌后关注机会 **卖出信号：** 1. `VAR1A（洋红离场）` - 连续上涨后出现下跌，视为离场信号

用法

1. **适用场景**：该指标结合了布林带（BOLL、UPPER、LOWER）和K线形态分析，适用于中短线交易 2. **主要用法**： - 关注价格上穿BOLL中轨的买入机会 - 关注价格下穿BOLL下轨的抄底机会（属于逆势买入） - 红色持股（连续上涨）持股待涨，青色观望（连续下跌）观望为主 - 黄色底买信号出现时可考虑分批建仓 - 洋红离场信号出现时应考虑减仓或离场 - 急跌关注用于捕捉超跌反弹机会 3. **注意事项**： - 布林带中轨具有支撑/压力作用，上穿可视为多头信号 - 下穿下轨虽然显示买入信号，但属于逆势交易，需严格止损 - 建议结合其他指标或趋势进行确认，避免单独使用

公式源码

{boll防套技}
BOLL:MA(CLOSE,20),COLORRED;
UPPER:BOLL+2*STD(CLOSE,20),COLOR808080 ;
LOWER:BOLL-2*STD(CLOSE,20),COLORGREEN;
IF(BOLL<REF(BOLL,1),BOLL,DRAWNULL),COLORBLUE;
涨家数:INDEXADV,COLOR0000DD,NODRAW;
跌家数:INDEXDEC,COLOR00DD00,NODRAW;
TT:=240/FROMOPEN;
比:=TT;
J12:=(HIGH - ((HIGH - LOW) / 3));
J23:=(LOW + ((HIGH - LOW) / 3));
AAA:=CONST(HHV(H,90));
BBB:=CONST(LLV(L,100));
DRAWKLINE(H,O,L,C);
JRH:=HHV(C,2);
JRL:=LLV(C,2);
YTSL:=(3*CLOSE+LOW+OPEN+HIGH)/6;
VAR1:=(CLOSE>REF(CLOSE,1) AND CLOSE>REF(CLOSE,2));
VAR2:=(REF(VAR1,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2));
VAR3:=(REF(VAR2,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2));
VAR4:=(REF(VAR3,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2));
VAR5:=(REF(VAR4,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2));
VAR6:=(REF(VAR5,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2));
VAR7:=(REF(VAR6,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2));
VAR8:=(REF(VAR7,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2));
VAR9:=(REF(VAR8,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2));
VARA:=(REF(VAR9,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2));
VARB:=(REF(VARA,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2));
VARC:=(REF(VARB,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2));
VARD:=(CLOSE<REF(CLOSE,1) AND CLOSE<REF(CLOSE,2));
VARE:=(REF(VARD,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2));
VARF:=(REF(VARE,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2));
VAR10:=(REF(VARF,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2));
VAR11:=(REF(VAR10,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2));
VAR12:=(REF(VAR11,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2));
VAR13:=(REF(VAR12,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2));
VAR14:=(REF(VAR13,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2));
VAR15:=(REF(VAR14,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2));
VAR16:=(REF(VAR15,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2));
VAR17:=(REF(VAR16,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2));
VAR18:=(REF(VAR17,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2));
VAR19:=((REF(VARD OR VARE OR VARF OR VAR10 OR VAR11 OR VAR12 OR VAR13 OR VAR14 OR VAR15 OR VAR16 OR VAR17 OR VAR18,1)) AND VAR1);
VAR1A:=((REF(VAR1 OR VAR2 OR VAR3 OR VAR4 OR VAR5 OR VAR6 OR VAR7 OR VAR8 OR VAR9 OR VARA OR VARB OR VARC,1)) AND VARD);
红色持股:VAR1 OR VAR2 OR VAR3 OR VAR4 OR VAR5 OR VAR6 OR VAR7 OR VAR8 OR VAR9 OR VARA OR VARB OR VARC,COLOR0000FF,NODRAW;
离场:=IF(红色持股,JRL,DRAWNULL);
明离场价:=离场,COLORFF99FF,NODRAW;
今离场价:=REF(离场,1)COLOR0000FF,NODRAW;
青色观望:VARD OR VARE OR VARF OR VAR10 OR VAR11 OR VAR12 OR VAR13 OR VAR14 OR VAR15 OR VAR16 OR VAR17 OR VAR18,COLORFFFF00,NODRAW;
进:=IF(青色观望,JRH,DRAWNULL);
明进场价:=进,COLOR33AACC,NODRAW;
今进场价:=REF(明进场价,1),COLORFF0000,NODRAW;
黄色底买:VAR19,COLOR33AACC,NODRAW;
洋红离场:VAR1A,COLORMAGENTA,NODRAW;
急跌关注:(CLOSE-MA(CLOSE,34))/MA(CLOSE,34)*100<-14,COLORWHITE,NODRAW;
STICKLINE(ISLASTBAR AND (红色持股 OR REF(红色持股,1)=1),今离场价,今离场价,30,1),COLOR0000FF;
STICKLINE(ISLASTBAR AND (青色观望 OR REF(青色观望,1)=1),今进场价,今进场价,30,1),COLOR00FF00;
STICKLINE(C>=O,L,H,0,0),COLOR0000CC;
STICKLINE(C<O,L,H,0,0),COLOR999900;
STICKLINE(1,C,O,3.5,0),COLOR858500;
STICKLINE(C>=O,C,O,3.5,0),COLOR0000E5;
STICKLINE(红色持股,CLOSE,O,2.8,0),COLOR000055;
STICKLINE(红色持股,CLOSE,O,2,0),COLOR000088;
STICKLINE(红色持股,CLOSE,O,1.5,0),{COLOR0000AA}COLORRED;
STICKLINE(红色持股,CLOSE,O,1,0),COLOR0000CC;
STICKLINE(红色持股,CLOSE,O,0.5,0),COLOR0000EE;
STICKLINE(青色观望,CLOSE,O,2.8,0),COLOR555500;
STICKLINE(青色观望,CLOSE,O,2,0),COLOR888800;
STICKLINE(青色观望,CLOSE,O,1.5,0),COLORAAAA00;
STICKLINE(青色观望,CLOSE,O,1,0),COLORCCCC00;
STICKLINE(青色观望,CLOSE,O,0.5,0),COLOREEEE00;
CO:=(C-O);
STICKLINE(急跌关注,O,C-CO/2,2.8,0),COLOR555555;
STICKLINE(急跌关注,O,C-CO/2,2,0),COLOR888888;
STICKLINE(急跌关注,O,C-CO/2,1.5,0),COLORAAAAAA;
STICKLINE(急跌关注,O,C-CO/2,1,0),COLORCCCCCC;
STICKLINE(急跌关注,O,C-CO/2,0.5,0),COLOREEEEEE;
STICKLINE(黄色底买,O,O+CO/3,2.8,0),COLOR335555;
STICKLINE(黄色底买,O,O+CO/3,2,0),COLOR338888;
STICKLINE(黄色底买,O,O+CO/3,1.5,0),COLOR33AAAA;
STICKLINE(黄色底买,O,O+CO/3,1,0),COLOR33CCCC;
STICKLINE(黄色底买,O,O+CO/3,0,0),COLOR33EEEE;
{DRAWTEXT(短买,REF(CLOSE,1),'＜Ｂ'),COLOR33FFCC;}
STICKLINE(洋红离场,O,O+CO/3,2.8,0),COLOR550055;
STICKLINE(洋红离场,O,O+CO/3,2,0),COLOR880088;
STICKLINE(洋红离场,O,O+CO/3,1.5,0),COLORAA00AA;
STICKLINE(洋红离场,O,O+CO/3,1,0),COLORCC00CC;
STICKLINE(洋红离场,O,O+CO/3,0.5,0),COLOREE00EE;
DRAWICON(crOSS(C,BOLL),L,7);
DRAWTEXT(CROSS(C,LOWER),L,1),COLORYELLOW;