指标旨在捕捉强势股在完成一波拉升后，经过短暂回调再次启动的“N字型”上涨机会。
📈 功能与策略
功能：指标的核心是识别“N字强势”信号。它通过寻找前期出现过涨停的强势股，在其股价回调至关键支撑位（如20日均线）附近，且成交量萎缩后，再次出现涨停或大阳线时，发出“N强”提示。
策略：当出现“N强”信号时，表明前期强势股经过短暂洗盘后，可能即将开启第二波主升浪。这是一个典型的“龙头首阴”或“强势股二波”的介入点。操作上，可在信号出现的尾盘择机介入，并将买入当天的最低价设为止损位，一旦跌破则果断离场。
{N字强势进场3.0版}
BX:=IF(FINANCE(3)=3 OR FINANCE(3)=4,0.2,0.1);
ZTJ:=ZTPRICE(REF(C,1),BX);
ZT:=C>=ZTJ AND C=H;
TT:=BARSLAST(ZT);
CP1:=TT>=3 AND TT<=5;
K1:=MA(C,20);
CP2:=COUNT(C< K1,TT)=0;
CP3:=EVERY(K1>REF(K1,1),TT);
CP4:=C/REF(C,TT)<=0.97;
AB:=CP1 AND CP2 AND CP3 AND CP4;
XG:=REF(COUNT(AB,2),1) AND ZT;
N:=1;
ZTB:=C/REF(C,1)>1.097;
B:=EVERY(ZTB,N);
BT:=BARSLAST(B);
NGZTB:=REF(C,BT+N)/REF(C,BT+N+1)< 1.097;
HT:=FINDHIGHBARS(H,0,15,1);
DD:=BT-HT=0 OR BT-HT=1;
CJL:=V< MA(V,20);
LLB:=FINDLOWBARS(L,0,HT,1)<=2;
LC:=LLV(C,HT)>MA(C,30);
LL:=LLV(C,HT)>REF(C,BT+N);
ZF30:=100*(REF(C,BT+N-1)-LLV(L,B+60))/LLV(L,B+60)<=50;
ZTBHT:=DD AND NGZTB AND CJL AND LLB AND LC AND LL AND ZF30;
A:=BARSLAST(ZTBHT);
A31:=REF(BT,1);
AA:=A< A31;
A2:=LLV(C,A31+1)>REF(C,A31+2) AND A31< 30 AND C=HHV(C,A31+1);
XG1:=AA AND A2 AND ZTB AND COUNT(ZTB,A31+1)=1;
AY1:=REF(C,3)/REF(C,4)>1.099 AND REF(C,3)>REF(O,3);
AY2:=REF(C,1)< REF(C,2) AND REF(C,1)>REF(O,3) AND REF(O,1)/REF(O,3)< 1.05 AND REF(C,1)< REF(C,3);
AY3:=L/REF(O,3)< 1.03 AND C>REF(C,3);
XG2:=AY1 AND AY2 AND AY3;
N字强势:XG OR XG1 OR XG2;
STICKLINE(N字强势,0,0.65,0.5,0),COLORYELLOW;
DRAWTEXT(N字强势,0.6,'N'),COLORRED;
DRAWTEXT(N字强势,0.4,'强'),COLORRED;
