{副图;至少54根历史且最近连续21根标准差均大于零时显示}
ZSD:=STD(C,34);
ZSF:=100*(C-MA(C,26))/IF(ZSD>0,ZSD,1);
ZAM:=MA(ABS(ZSF),21);
ZRD:=BARSCOUNT(C)>=54 AND COUNT(ZSD>0,21)=21;
新布林极限:IF(ZRD,ZSF,DRAWNULL),COLORYELLOW,LINETHICK2;
上轨:IF(ZRD,ZAM,DRAWNULL),COLORCYAN;
下轨:IF(ZRD,-ZAM,DRAWNULL),COLORCYAN;