一般来讲，缩量收中到大阴线并且创阶段新底的形态多数是主力故意挖坑的表现，其后数日内若出现长阳矮柱、量价双胜阴、阳包阴、小倍阳等形态，多为止跌反弹信号。姑且称之为见血封喉战法，这是一种成功率高，风险相对较小而收益率却较大的股市实用战法。该战法有三个要点：一是前期一直缩量连续下跌，此为量形基础；二是在阶段性底部突然加速长阴再跌创新低，且这里的长阴必须缩量，此为量性条件；三是出现长阳矮柱、量价双胜阴、阳包阴、小倍阳等，此为介入前提。希望朋友们仔细体会，提前设置止损位，千万不可刻舟求剑，盲目操作。

操盘口诀如下：

缩量大跌创新低，主力挖坑现踪迹；
此后若见拐点阳，见血封喉莫迟疑。

见血封喉战法图鉴：

见血封喉战法通达信公式源码：

底部周期:=9;
X_1:=CLOSE<=REF(LLV(CLOSE,底部周期),1) AND CLOSE<=OPEN;
X_2:=REF(X_1,1) AND CLOSE>OPEN AND CLOSE<=REF(CLOSE,1);
X_3:=X_1 OR X_2 AND FINANCE(42)>20;
X_4:=(CLOSE-REF(CLOSE,1))/REF(CLOSE,1)>=0.04 OR (CLOSE-OPEN)/OPEN>=0.04 AND (VOL<=MA(VOL,60) OR VOL/REF(VOL,1)<=1.2 OR VOLLOW;
X_5:=(OPEN-CLOSE)/OPEN>=0.04 OR (REF(CLOSE,1)/CLOSE>=1.04 AND CLOSE X_6:=CLOSE X_7:=REF(VOL,2)>REF(VOL,1) AND REF(VOL,1)>VOL AND COUNT(X_6,3)>=2;
X_8:=VOLLOW;
X_9:=REF(VOL,2)>REF(VOL,1) AND REF(VOL,1)>VOL;
X_10:=VOL/REF(VOL,1)<0.67;
X_11:=IF(DATE=1160107,REF(VOL,1),VOL);
X_12:=X_11LOW;
X_13:=VOL/MA(VOL,60)<=1/3;
X_14:=X_3 AND X_5 AND COUNT(X_9 OR X_10 OR X_12,3);
亮剑:X_14,NODRAW,COLORRED;
STICKLINE(亮剑,0.75,0.6,0,0),COLORWHITE;
STICKLINE(亮剑,0.6,0.175,0,0),COLORWHITE;
STICKLINE(亮剑,0.175,0.155,3,0),COLORWHITE;
STICKLINE(亮剑,0.155,0,0.3,0),COLORWHITE;
X_15:=REF(X_14,1) AND CLOSE>OPEN AND VOL>REF(VOL,1) AND (CLOSE>REF((CLOSE+OPEN)/2,1) OR CLOSE/OPEN>1.008);
X_16:=REF(X_14,1) OR (REF(X_14,2) AND REF(CLOSE,1)OPEN AND VOL>REF(VOL,1) AND CLOSE>REF(OPEN,1);
X_17:=REF(X_14,1) AND X_4 OR (REF(X_14,2) AND REF(VOL,1) X_18:=REF(CLOSE,1)REF(OPEN,1) AND OPEN X_19:=REF(X_14,1) OR REF(X_14,2) AND X_18 AND CLOSE/OPEN>1.02;
X_20:=100*(MIN(CLOSE,OPEN)-LOW)/LOW>3.5;
X_21:=REF(X_14,1) OR REF(X_14,2) AND X_20 AND CLOSE>OPEN;
X_22:=REF(X_14,1) AND REF(X_20,1) OR (REF(X_14,2) AND (REF(X_20,2) OR REF(X_20,1))) AND CLOSE/OPEN>1.02;
X_23:=X_21 OR X_22;
X_24:=REF(X_14,1) AND CLOSE/OPEN>1.01 AND VOL X_25:=X_15 OR X_16 OR X_17 OR X_19 OR X_23 OR X_24;
出击:FILTER(X_25,2),COLORYELLOW,LINETHICK2;

2018，新的一年，祝所有的股民朋友们投资愉快！