说明：只有经过长期实践和在牛、熊市中经得起时间考验的指标才是好指标，大盘趋势，压力、支撑，一看便知。送给有缘人，慢慢揣摩，必有收获……。

顺便说两句，适值“光大乌龙指”事件发生之际发此指标，是为了从技术角度说明大盘在下周的大概走势，关注“低点支撑”，一旦被有效跌破，将不排除再次考验2000点的可能。

HIGHN:=10;
LOWN:=10;
HIGHDISPLAY:=0;
LOWDISPLAY:=0;
ZGDISPLAY:=0;
MADISPLAY:=0;
AA:=REF(H,HIGHN)=HHV(H,2*HIGHN+1);
QY:=BACKSET(AA,HIGHN+1);
CC:=FILTER(QY,HIGHN) AND H=HHV(H,HIGHN+1);
DRAWICON(CC,H*1.02,2);
DDD:=BARSLAST(CC);
GDTS:=IF(CC,CURRBARSCOUNT,0);
DINGBU:=IF(DDD,REF(H,DDD),H);{顶部}
DINGBUTS:=IF(DDD,REF(GDTS,DDD),GDTS);
DINGBU1:=REF(DINGBU,DDD+1);
GDCS1:=CONST(DINGBUTS);
DINGBUTS1:=REF(DINGBUTS,DDD+1);
GDCS2:=CONST(DINGBUTS1);
DINGBU2:=REF(DINGBU1,DDD+1);
MM:=IF(CURRBARSCOUNT>GDCS2,0,1);
高点压力:DRAWLINE(CURRBARSCOUNT=GDCS2,H,CURRBARSCOUNT=GDCS1,H,1) COLORGREEN,LINETHICK2;
DRAWLINE(CURRBARSCOUNT=GDCS2,H,ISLASTBAR,REF(H,GDCS2-1),1),COLOR0055FF,DOTLINE;
DRAWLINE(CURRBARSCOUNT=GDCS1,H,ISLASTBAR,REF(H,GDCS1-1),1),COLORYELLOW,DOTLINE;
AA1:=REF(L,LOWN)=LLV(L,2*LOWN+1);
QY1:=BACKSET(AA1,LOWN+1);
CC1:=FILTER(QY1,LOWN) AND L=LLV(L,LOWN+1);
DRAWICON(CC1,L*0.98,1);
DD1:=BARSLAST(CC1);
DDTS:=IF(CC1,CURRBARSCOUNT,0);
YDB:=IF(DD1,REF(L,DD1),L);
DDTS1:=IF(DD1,REF(DDTS,DD1),DDTS);
DDCS1:=CONST(DDTS1);
ZDB:=REF(YDB,DD1+1);
DDTS2:=REF(DDTS1,DD1+1);
DDCS2:=CONST(DDTS2);
低点支撑:DRAWLINE(CURRBARSCOUNT=DDCS2,L,CURRBARSCOUNT=DDCS1,L,1) COLORRED,LINETHICK2;

ZGSTAR:=(高点压力+低点支撑)/2;
ZGEND:=CONST((高点压力+低点支撑)/2);
STARDAY:=IF(DDCS2<GDCS2,DDCS2,GDCS2);
中轨:DRAWLINE(CURRBARSCOUNT=STARDAY,ZGSTAR,ISLASTBAR,ZGEND,1),COLORFF55BB,LINETHICK2;

DRAWLINE(CURRBARSCOUNT=DDCS1,L,ISLASTBAR,REF(L,DDCS1-1),1),COLORMAGENTA,DOTLINE,;
DRAWLINE(CURRBARSCOUNT=DDCS2,L,ISLASTBAR,REF(L,DDCS2-1),1),COLORCYAN,DOTLINE;