1.见底封喉指标是针对拉升之后的一波下跌或回调，达到主力计划的目标位后返身，以五日均线陡峭向上，封锁、扭转下跌退势，开起新的趋势，如果信号位置是个涨停板说明主力做多意愿强烈。
2.尾盘或盘中选股均可，盘中选股遇到强势拉升的个股可等上板时直接打板介入，底部拉板则说明资金认可度高，后面大多有很好的涨势预期。
HG1:=IF(INBLOCK('科创板'),0.2,IF(INBLOCK('创业板'),0.2,IF(INBLOCK('STHG1'),0.05,0.1)));
HG2:=(HIGH-MAX(CLOSE,OPEN))/(MIN(CLOSE,OPEN)-LOW)<=0.03;
HG3:=HIGH/LOW>=1.03;
HG4:=MAX(CLOSE,OPEN)/MIN(CLOSE,OPEN)<=1.02;
HG5:=(HG2 AND HG3 AND HG4)*0.3;
HG6:=IF(HG1=0.2,ROUND2(ZTPRICE(REF(C,1),0.2),2),IF(HG1=0.05,ROUND2(ZTPRICE(REF(C,1),0.05),2),ROUND2(ZTPRICE(REF(C,1),0.1),2)));
HG7:=C>=HG6 AND C=HIGH;
HG8:=100*(C-REF(C,1))/REF(CLOSE,1);
见底封喉:REF(COUNT(EVERY(C< REF(MIN(C,OPEN),1),3),10),0)>=3 AND CROSS(C,MA(C,5)) AND ATAN((MA(C,5)/REF(MA(C,5),1)-1)*100)*180/3.142< -40 AND CLOSE>O AND CLOSE>REF(CLOSE,1) AND HG8>3,LINETHICK2,COLORFFFF00;
DRAWTEXT(见底封喉,0.71,' ★底部封喉'),COLORFF00FF;
