01 指标背后的底层逻辑：为什么叫"虎口拔牙"？
这个指标就像是一个“老虎嘴巴” 🐯 的监控器，专门盯着：什么时候老虎张嘴让你捞一把，什么时候要咬人赶紧跑。
核心计算逻辑：A0 🌡️ 给股价量体温均线 👀 看脸色是否好转K、D、J ⚡ 超敏KDJ，比传统更准A2 💪 量主力意志，越高越看好A5 📈 判中长期大势
实战金叉密码：金叉 🤝 K上穿D，好朋友牵手向上二次金叉 🚀 15天内再金叉，动力加倍底背离 📉 价新低指不新低，反转预警穿三线 🎯 J、K、A2三军会师，威力MAX虎口拔牙 🦷 K低位突破A2，最佳低吸点
02 指标适配策略：什么时候用，什么时候不用？
最佳适用场景：中低价股 💰 10-50元信号最灵成交活跃 🔄 日均换手＞2%有题材 🎈 技术面+想象空间震荡市 📊 准确率75%+
适合人群：沉稳派 🧘 信号确认需耐心技术爱好者 📚 懂KDJ均线更易上手风险中等 🛡️ 能抓反弹也控风险
使用禁忌：单边暴涨暴跌 ⚡ 假信号多ST次新 🚫 基本面风险大大盘指数 📉 干扰因素多
记住巴菲特金句：别人贪婪我恐惧，别人恐惧我贪婪。"虎口拔牙"就是别人恐惧时找机会！
03 福利分享：完整选股公式和源码
通达信虎口拔牙副图指标源码：
A0:=(2*C+H+L)/4;
均线:=MA(A0,3)>REF(MA(A0,3),1);
A1:=(CLOSE-LLV(LOW,7))/(HHV(HIGH,7)-LLV(LOW,7))*100;
A2:=EMA(WINNER(C)*100,5);
A3:=MA(SMA(C-REF(C,1),3,1)/SMA(H-REF(C,1),3,1),3)*100;
K:MA(3*SMA(A1,6,1)-2*SMA(SMA(A1,5,1),5,1),3),LINETHICK2,COLORF00FF0;
D:MA(K,3),COLORFF0000,LINETHICK2;
J:3*K-2*D,LINETHICK2;
A4:=SMA(MAX(C-REF(C,2),0),6,1)/SMA(ABS(C-REF(C,2)),6,1)*100;
A5:=MA(3*SMA((C-LLV(L,21))/(HHV(H,21)-LLV(L,21))*100,5,1)-2*SMA(SMA((C-LLV(L,21))/(HHV(H,21)-LLV(L,21))*100,5,1),3,1),3);
低吸:IF(CROSS(A4,14) OR A5>REF(A5,1) AND CROSS(K,A2)AND K<40,10,0);
IF(A2>80 AND CROSS(95,K),85,100);
跌幅较大:K<5 AND LLV(C,3)/HHV(C,20)<0.8,COLOR00FF00;
STICKLINE(跌幅较大,0,30,3,0),COLOR00FF00;
A6:=COUNT(CROSS(K,A2),2)=1 AND CROSS(K,A5)AND A5/REF(A5,1)>0.9 AND K<50;
A7:=CROSS(K,D)AND D<10 OR CROSS(K,D)AND CROSS(K,A5)AND D<18;
DRAWTEXT(FILTER((A6 OR A7)AND K>REF(K,1),5)AND 均线 ,D,'金叉');
DRAWTEXT(CROSS(D,K)AND CROSS(A5,K)AND D>85,D,'死叉');
DRAWTEXT(FILTER(K>REF(K,1)AND (CROSS(K,10)OR CROSS(K,A2))AND COUNT(A4<14,3)>=1,3),15,'虎口拔牙');
无限风光:A2>85 AND K>85 OR A2>90 OR K>90,LINETHICK0,COLORFFFF00;
STICKLINE(无限风光,MAX(A2,K),100,6,1),COLORFFFF00;
DRAWICON(CROSS(A3,-300)AND K<10,5,1);
A8:=BARSLAST(REF(CROSS(K,D),1));
二次金叉:=(A8<15 AND D<50 AND K>REF(K,A8+1) AND CROSS(K,D)AND A5<60);
DRAWTEXT(二次金叉 AND 均线,K,'二次金叉');
A9:=LLV(C,2)<REF(LLV(C,15),2);
DRAWTEXT(二次金叉 AND A9,K,'底背离'),COLORMAGENTA;
DRAWTEXT(LONGCROSS(J,K,7)AND CROSS(J,A2)AND A2<30 AND A2>REF(A2,1),K,'穿三线');
DRAWTEXT(CROSS(84,A4)AND CROSS(K,A4),90,'虎口脱险'),COLOR00FF00;
A10:=MA((A0-MA(A0,13))/(0.15*AVEDEV(A0,13)),3);
DRAWICON(CROSS(A10,-15)AND J>REF(J,1),5,1);
DRAWICON(CROSS(20,A10),100,2);
绿色柱 📉 下跌风险大，可低吸黄色柱 📈 过度炒作，注意风险红色字 🦷 "虎口拔牙"出现，理想低吸点
主力金叉选股公式 🏆
{主力金叉选股}A0:=(2*C+H+L)/4;均线:=MA(A0,3)>REF(MA(A0,3),1);A1:=(CLOSE-LLV(LOW,7))/(HHV(HIGH,7)-LLV(LOW,7))*100;A2:=EMA(WINNER(C)*100,5);A3:=MA(SMA(C-REF(C,1),3,1)/SMA(H-REF(C,1),3,1),3)*100;K:=MA(3*SMA(A1,6,1)-2*SMA(SMA(A1,5,1),5,1),3);D:=MA(K,3);J:=3*K-2*D;A4:=SMA(MAX(C-REF(C,2),0),6,1)/SMA(ABS(C-REF(C,2)),6,1)*100;A5:=MA(3*SMA((C-LLV(L,21))/(HHV(H,21)-LLV(L,21))*100,5,1)-2*SMA(SMA((C-LLV(L,21))/(HHV(H,21)-LLV(L,21))*100,5,1),3,1),3);A8:=BARSLAST(REF(CROSS(K,D),1));{核心选股条件}二次金叉选股:=(A8<15 AND D<50 AND K>REF(K,A8+1) AND CROSS(K,D)AND A5<60);主力介入:=CROSS(K,A2)AND K<40;底部信号:=A2>20 AND A2<60 AND K>REF(K,1);安全入场:=均线 AND 二次金叉选股 AND 主力介入 AND 底部信号;{筛选条件}安全入场;
"虎口拔牙"低吸选股公式 🦷
{虎口拔牙低吸}A0:=(2*C+H+L)/4;A1:=(CLOSE-LLV(LOW,7))/(HHV(HIGH,7)-LLV(LOW,7))*100;A2:=EMA(WINNER(C)*100,5);A3:=MA(SMA(C-REF(C,1),3,1)/SMA(H-REF(C,1),3,1),3)*100;K:=MA(3*SMA(A1,6,1)-2*SMA(SMA(A1,5,1),5,1),3);A4:=SMA(MAX(C-REF(C,2),0),6,1)/SMA(ABS(C-REF(C,2)),6,1)*100;{核心信号}低吸信号:=FILTER(K>REF(K,1)AND (CROSS(K,10)OR CROSS(K,A2))AND COUNT(A4<14,3)>=1,3);底部确认:=K<15 AND A2<30;风险控制:=C>MA(C,20)AND MA(C,20)>REF(MA(C,20),1);{最终条件}虎口拔牙:=低吸信号 AND 底部确认 AND 风险控制;虎口拔牙;
