N字底选股，AA:=C/REF(C,1)...

N字底选股，AA:=C/REF(C,1)>1.094 AND C=H;
天数:=BARSLAST(AA);
涨停底:=REF(O,天数);
不破涨停底:=BETWEEN(C,涨停底*0.99,涨停底*1.02);
缩量:=V<MA(V,5);
XG:不破涨停底 AND 缩量;