文档介绍：/*
TJ6:=BETWEEN(ZG,REF(ZD,REF(BARSLAST(TJ4),1)),REF(ZG,REF(BARSLAST(TJ4),1)));
TJ7:=ZG>REF(ZG,REF(BARSLAST(TJ4),1))&&ZD<REF(ZD,REF(BARSLAST(TJ4),1));
TJ8:=TJ4&&NOT(TJ5 OR TJ6 OR TJ7);
ZSD:=IF(TJ8,ZD,NULL);
ZSG:=IF(TJ8,ZG,NULL);
ZSH:=IF(TJ8,HH,NULL);
ZSL:=IF(TJ8,LL,NULL);
STICKLINE1(TJ8,ZSH,ZSL,0,-1),COLORMAGENTA;
STICKLINE1(TJ8,ZSD,ZSG,0,1),COLORMAGENTA;
DRAWTEXT(DISP=2,ZSH,'中枢'),COLORRED;
POLYLINE(DISP=2,REF(ZSD,BARSLAST(TJ8)),COLORRED),CROSSDOT;
POLYLINE(DISP=2,REF(ZSG,BARSLAST(TJ8)),COLORGREEN),CROSSDOT;
POLYLINE(DISP=2,REF(ZSH,BARSLAST(TJ8)),COLORRED),POINTDOT;
POLYLINE(DISP=2,REF(ZSL,BARSLAST(TJ8)),COLORGREEN),POINTDOT;
POLYLINE(DISP=3,ZIGZAG(H,1,1),COLORBLUE);
POLYLINE(DISP=3,ZIGZAG(L,1,1),COLORBLUE);
局部低点预选A:=BACKSET(LLV(L,5)<REF(LLV(L,4),1),4);
局部低点预选B:=BACKSET(局部低点预选A=0 AND REF(局部低点预选A,1)=1,2);
局部低点预选C:=IF(局部低点预选B=1 AND REF(局部低点预选B,1)=0,-1,0);
局部高点预选A:=BACKSET(HHV(H,5)>REF(HHV(H,4),1),4);
局部高点预选B:=BACKSET(局部高点预选A=0 AND REF(局部高点预选A,1)=1,2);
局部高点预选C:=IF(局部高点预选B=1 AND REF(局部高点预选B,1)=0,1,0);
缺口判断:=IF(L>REF(H,1),1,IF(H<REF(L,1),-1,0));
距前高天:=BARSLAST(局部高点预选C=1);
距前低天:=BARSLAST(局部低点预选C=-1);
小值周期:=20;
大值周期:=20;
低保留AA:=IF(局部低点预选C=-1 AND REF(距前高天,1)>REF(距前低天,1) AND LLV(L,距前高天+1)<REF(LLV(L,距前高天+1),1),-1,0);
低保留AB:=IF(局部低点预选C=-1 AND REF(距前高天,1)<=REF(距前低天,1) AND (距前高天>=4 OR LLV(缺口判断,距前高天)=-1 OR LLV(L,距前低天+2)<REF(LLV(L,距前低天+1),1)),-1,0);
低保留S:=IF((低