未来函数检测结果如下:
该公式包含未来函数:FINANCE
该公式包含未来函数:DVOL
ZT:=REF(C,1)*1.1-C<0.01 AND H=C;{涨停}
YM:EMA(SLOPE((CLOSE+HIGH+LOW)/3,24)*20+(CLOSE+HIGH+LOW)/3,48),COLORRED,LINETHICK1;
YM1:=EMA(YM,5),COLORRED,LINETHICK1;
YM2:=EMA(YM1,5),COLORRED,LINETHICK1;
IF(YM>=YM2,YM,DRAWNULL),LINETHICK1,COLORRED;
IF(YM>=YM2,YM1,DRAWNULL),LINETHICK1,COLORRED;
IF(YM<=YM2,YM,DRAWNULL),LINETHICK1,COLORGREEN;
IF(YM<=YM2,YM1,DRAWNULL),LINETHICK1,COLORGREEN;
IF(YM>=YM2,YM,DRAWNULL),LINETHICK1,COLORRED;
YM3:EMA((CLOSE+HIGH+LOW)/3,3),COLORGREEN;
STICKLINE(EMA((CLOSE+HIGH+LOW)/3,3)>=YM,LOW,HIGH,0,0),COLORRED;
STICKLINE(EMA((CLOSE+HIGH+LOW)/3,3)>=YM,CLOSE,OPEN,3,1),COLORRED;
STICKLINE(EMA((CLOSE+HIGH+LOW)/3,3)<=YM,LOW,HIGH,0,0),COLORGREEN;
STICKLINE(EMA((CLOSE+HIGH+LOW)/3,3)<=YM,CLOSE,OPEN,3,1),COLORGREEN;
STICKLINE(YM>=YM2 AND YM3<=YM,LOW,HIGH,0,0),COLORBLUE;
STICKLINE(YM>=YM2 AND YM3<=YM,O,C,3,0),COLORBLUE;
STICKLINE(YM>=YM2 AND YM3<=YM ,HIGH,LOW,0,1 ),COLORWHITE;
STICKLINE(YM>=YM2 AND YM3<=YM,OPEN,CLOSE,3.1,0 ),COLOR555555;
STICKLINE(YM>=YM2 AND YM3<=YM ,OPEN,CLOSE,2.7,0 ),COLOR777777;
STICKLINE(YM>=YM2 AND YM3<=YM ,OPEN,CLOSE,2.1,0 ),COLOR999999;
STICKLINE(YM>=YM2 AND YM3<=YM ,OPEN,CLOSE,1.5,0 ),COLORBBBBBB;
STICKLINE(YM>=YM2 AND YM3<=YM ,OPEN,CLOSE,0.9,0 ),COLORDDDDDD;
STICKLINE(YM>=YM2 AND YM3<=YM ,OPEN,CLOSE,0.3,0 ),COLORFFFFFF;
DRAWTEXT(YM>=YM2 AND YM3<=YM AND ZT,L,'【精准导弹】'),COLORYELLOW;
STICKLINE(YM>=YM2 AND YM3<=YM AND ZT,CLOSE,OPEN,3.2,0),COLOR0077FF;
STICKLINE(YM>=YM2 AND YM3<=YM AND ZT,CLOSE,OPEN,2.5,0),COLOR0099FF;
STICKLINE(YM>=YM2 AND YM3<=YM AND ZT,CLOSE,OPEN,1.9,0),COLOR00BBFF;
STICKLINE(YM>=YM2 AND YM3<=YM AND ZT,CLOSE,OPEN,1.2,0),COLOR00DDFF;
STICKLINE(YM>=YM2 AND YM3<=YM AND ZT,CLOSE,OPEN,0.3,0),COLOR00FFFF;
STICKLINE(YM>=YM2 AND YM3<=YM AND ZT AND C>O,O,C,0.1,0),COLORFFFFFF;
VAR21:=4*SMA((CLOSE-LLV(LOW,5))/(HHV(HIGH,5)-LLV(LOW,5))*100,5,1)-
3*SMA(SMA((CLOSE-LLV(LOW,5))/(HHV(HIGH,5)-LLV(LOW,5))*100,5,1),3.2,1);
VAR22:=8; {股票指标网}
QQ:=CROSS(VAR21,VAR22);
STICKLINE(QQ AND YM>=YM2 AND YM3<=YM,C,O,5,2),COLORYELLOW{98FD};
STICKLINE(QQ AND YM>=YM2 AND YM3<=YM,C,O,3,0),COLOR00C8FF;
STICKLINE(QQ AND YM>=YM2 AND YM3<=YM,C,O,2,0),COLOR10ECFF;
STICKLINE(QQ AND YM>=YM2 AND YM3<=YM,C,O,2,0),COLOR10FFFF;
DRAWTEXT(QQ AND YM>=YM2 AND YM3<=YM,L*0.98,'短入'),COLOR0099FF;
大单动向:=(LARGEINTRDVOL-LARGEOUTTRDVOL)*10000/FINANCE(7);
涨跌动因:=IF(TRADENUM>0,(TRADEOUTNUM-TRADEINNUM)*100/TRADENUM,0);
超B:=L2_AMO(0,2)/10000.0;
大B:=L2_AMO(1,2)/10000.0;
中B:=L2_AMO(2,2)/10000.0;
小B:=L2_AMO(3,2)/10000.0;
超S:=L2_AMO(0,3)/10000.0;
大S:=L2_AMO(1,3)/10000.0;
中S:=L2_AMO(2,3)/10000.0;
小S:=L2_AMO(3,3)/10000.0;
大单比:=(超B+大B+中B)/(超S+大S+中S);
资金定位:=大单动向>0.02 AND 涨跌动因>5 AND 大单比>1;
MACD价咯1:=EMA(CLOSE,3) - EMA(CLOSE,9);
DEA1021:=EMA((EMA(MACD价咯1,102) - EMA(MACD价咯1,204)),9);
DEA511:=EMA((EMA(MACD价咯1,51) - EMA(MACD价咯1,102)),9);
DEA36361:=EMA((EMA(MACD价咯1,36) - EMA(MACD价咯1,72)),9);
DEA24241:=EMA((EMA(MACD价咯1,24) - EMA(MACD价咯1,48)),9);
DEA18181:=EMA((EMA(MACD价咯1,18) - EMA(MACD价咯1,36)),9);
DEA661:=EMA((EMA(MACD价咯1,6) - EMA(MACD价咯1,12)),9);
DEA331:=EMA((EMA(MACD价咯1,3) - EMA(MACD价咯1,9)),9);
DEA12121:=EMA((EMA(MACD价咯1,12) - EMA(MACD价咯1,24)),9);
MACD24241:=2*((EMA(MACD价咯1,24) - EMA(MACD价咯1,48))-DEA24241);
HH1:=(20*H+19*REF(H,1)+18*REF(H,2)+17*REF(H,3)+16*REF(H,4)+15*REF(H,5)+14*REF(H,6)
+13*REF(H,7)+12*REF(H,8)+11*REF(H,9)+10*REF(H,10)+9*REF(H,11)+8*REF(H,12)
+7*REF(H,13)+6*REF(H,14)+5*REF(H,15)+4*REF(H,16)+3*REF(H,17)+2*REF(H,18)+
REF(H,20))/210,COLORBLUE,LINETHICK1;
LL1:=(20*L+19*REF(L,1)+18*REF(L,2)+17*REF(L,3)+16*REF(L,4)+15*REF(L,5)+14*REF(L,6)
+13*REF(L,7)+12*REF(L,8)+11*REF(L,9)+10*REF(L,10)+9*REF(L,11)+8*REF(L,12)
+7*REF(L,13)+6*REF(L,14)+5*REF(L,15)+4*REF(L,16)+3*REF(L,17)+2*REF(L,18)+
REF(L,20))/210,COLORBLUE,LINETHICK1;
D90H1:=EMA(HH1,90),COLORRED,LINETHICK1;
D90L1:=EMA(LL1,90),COLORRED,LINETHICK1;
D901:=(D90H1+D90L1)/2;
Y1M:=EMA(SLOPE((CLOSE+HIGH+LOW)/3,24)*20+(CLOSE+HIGH+LOW)/3,48);
CCI151:=((HIGH+LOW+CLOSE)/3-MA((HIGH+LOW+CLOSE)/3,15))/(0.015*AVEDEV((HIGH+LOW+CLOSE)/3,15));
CCI101:=((HIGH+LOW+CLOSE)/3-MA((HIGH+LOW+CLOSE)/3,10))/(0.015*AVEDEV((HIGH+LOW+CLOSE)/3,10));
CCI51:=((HIGH+LOW+CLOSE)/3-MA((HIGH+LOW+CLOSE)/3,5))/(0.015*AVEDEV((HIGH+LOW+CLOSE)/3,5));
CCI31:=((HIGH+LOW+CLOSE)/3-MA((HIGH+LOW+CLOSE)/3,3))/(0.015*AVEDEV((HIGH+LOW+CLOSE)/3,3));
CCI买点定位1:=CROSS(CCI51,0) AND CROSS(CCI31,0) AND REF(CCI151,1)>0 AND REF(CCI101,1)>-30 AND REF(CCI151,1)>REF(CCI101,1) AND REF(CCI101,1)>REF(CCI51,1);
CCI买点定位2:=CROSS(CCI31,0) AND CCI51>REF(CCI51,1) AND REF(CCI51,1)<-100 AND REF(CCI151,1)>0 AND REF(CCI101,1)>-30 AND REF(CCI151,1)>REF(CCI101,1) AND REF(CCI101,1)>REF(CCI51,1);
CCI买点定位3:=CROSS(CCI51,0) AND CROSS(CCI31,0) AND REF(CCI101,1)>0 AND REF(CCI101,1)>REF(CCI151,1);
CCI买点定位:=CCI买点定位1=1 OR CCI买点定位2=1 OR CCI买点定位3=1;
起爆金股1:=CCI买点定位=1 AND DEA12121>DEA18181 AND DEA18181>DEA24241 AND DEA24241>DEA36361 AND DEA36361>DEA511 AND DEA511>=DEA1021 AND DEA18181>REF(DEA18181,1) AND DEA24241>REF(DEA24241,1) AND DEA36361>REF(DEA36361,1) AND DEA511>REF(DEA511,1) AND DEA1021>REF(DEA1021,1) AND DEA36361>0 AND DEA331>0;
起爆金股2:=CCI买点定位=1 AND DEA12121>DEA18181 AND DEA18181>DEA24241 AND DEA24241>DEA36361 AND DEA18181>DEA1021 AND DEA18181>REF(DEA18181,1) AND DEA24241>REF(DEA24241,1) AND DEA36361>REF(DEA36361,1) AND DEA511>REF(DEA511,1) AND DEA1021>REF(DEA1021,1) AND DEA18181>0 AND DEA331>0;
起爆金股:=起爆金股1=1 OR 起爆金股2=1;
VOL比:=VOL/REF(VOL,1);
高度1:=(D90H1-D90L1)*4+D90H1;
PBX11:=(EXPMA((CLOSE+HIGH+LOW)/3,4)+EMA((CLOSE+HIGH+LOW)/3,4*2)+EMA((CLOSE+HIGH+LOW)/3,4*4))/3;
PBX22:=(EXPMA((CLOSE+HIGH+LOW)/3,5)+EMA((CLOSE+HIGH+LOW)/3,5*2)+EMA((CLOSE+HIGH+LOW)/3,5*4))/3;
PBXHH:=(EXPMA(H,2)+EMA(H,2*2)+EMA(H,2*4))/3,COLORGREEN,LINETHICK1;
PBXLL:=(EXPMA(L,2)+EMA(L,2*2)+EMA(L,2*4))/3,COLORRED,LINETHICK1;
PBX高:=REF(PBXHH,1),COLORGREEN,LINETHICK1;
PBX低:=REF(PBXLL,1),COLORRED,LINETHICK1;
PMX差:=PBX高-PBX低;
起爆止盈价:=PBX高+PMX差*2,COLORWHITE,LINETHICK1;
起爆获利率:=(起爆止盈价-PBX高)/PBX高*100;
起爆止损价:=PBX低-PMX差*0.7,COLORWHITE,LINETHICK1;
起爆止损率:=(起爆止损价-PBX高)/PBX高*100;
海底蛟龙:=(CLOSE+HIGH+LOW)/3<D901 AND (CLOSE+HIGH+LOW)/3>Y1M AND 起爆金股=1 AND C<高度1 AND PBX11>PBX22 AND L<PBX高 AND O<PBX高 AND 资金定位=1 AND VOL比>1.2;
云上天龙:=(CLOSE+HIGH+LOW)/3>D901 AND (CLOSE+HIGH+LOW)/3>Y1M AND 起爆金股=1 AND C<高度1 AND PBX11>PBX22 AND L<PBX高 AND O<PBX高 AND 资金定位=1 AND VOL比>1.2;
起爆点:=海底蛟龙=1 OR 云上天龙=1;
STICKLINE(起爆点=1 AND C<PBX高,LOW,HIGH,0,0),COLORYELLOW;
STICKLINE(起爆点=1 AND C<PBX高,CLOSE,OPEN,3,0),COLORYELLOW;
STICKLINE(起爆点=1 AND C>PBX高,LOW,PBX高,0,0),COLORYELLOW;
STICKLINE(起爆点=1 AND C>PBX高,PBX高,OPEN,3,0),COLORYELLOW;
DRAWICON(起爆点=1,L,1);
原理解析:
ZT赋值:1日前的C*1.1-C<0.01 AND H=C
输出{涨停}
YM:EMA(SLOPE((收盘价+最高价+最低价)/3,24)*20+(收盘价+最高价+最低价)/3,48),画红色,LINETHICK1
YM1赋值:YM的5日指数移动平均,画红色,LINETHICK1
YM2赋值:YM1的5日指数移动平均,画红色,LINETHICK1
如果YM>=YM2返回YM否则返回DRAWNULL
如果YM>=YM2返回YM1否则返回DRAWNULL
如果YM<=YM2返回YM否则返回DRAWNULL
如果YM<=YM2返回YM1否则返回DRAWNULL
如果YM>=YM2返回YM否则返回DRAWNULL
输出
YM3:EMA((收盘价+最高价+最低价)/3,3),画绿色
STICKLINE(EMA((收盘价+最高价+最低价)/3,3)>=YM,最低价,最高价,0,0),画红色
STICKLINE(EMA((收盘价+最高价+最低价)/3,3)>=YM,收盘价,开盘价,3,1),画红色
STICKLINE(EMA((收盘价+最高价+最低价)/3,3)<=YM,最低价,最高价,0,0),画绿色
STICKLINE(EMA((收盘价+最高价+最低价)/3,3)<=YM,收盘价,开盘价,3,1),画绿色
当满足条件YM>=YM2 AND YM3<=YM时,在最低价和最高价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM时,在O和C之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM 时,在最高价和最低价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM时,在开盘价和收盘价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM 时,在开盘价和收盘价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM 时,在开盘价和收盘价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM 时,在开盘价和收盘价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM 时,在开盘价和收盘价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM 时,在开盘价和收盘价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM AND ZT时,在L和'【精准导弹】'位置书写文字
当满足条件YM>=YM2 AND YM3<=YM AND ZT时,在收盘价和开盘价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM AND ZT时,在收盘价和开盘价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM AND ZT时,在收盘价和开盘价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM AND ZT时,在收盘价和开盘价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM AND ZT时,在收盘价和开盘价之间画柱状线
当满足条件YM>=YM2 AND YM3<=YM AND ZT AND C>O时,在O和C之间画柱状线
VAR21赋值:4*SMA((收盘价-5日内最低价最低值)/(5日内最高价最高值-5日内最低价最低值)*100,5,1)-
3*SMA(SMA((收盘价-5日内最低价最低值)/(5日内最高价最高值-5日内最低价最低值)*100,5,1),3.2,1)
VAR22赋值:8
{股票指标网}
QQ赋值:VAR21上穿VAR22
当满足条件QQ AND YM>=YM2 AND YM3<=YM时,在C和O之间画柱状线
当满足条件QQ AND YM>=YM2 AND YM3<=YM时,在C和O之间画柱状线
当满足条件QQ AND YM>=YM2 AND YM3<=YM时,在C和O之间画柱状线
当满足条件QQ AND YM>=YM2 AND YM3<=YM时,在C和O之间画柱状线
当满足条件QQ AND YM>=YM2 AND YM3<=YM时,在L*0.98和'短入'位置书写文字
大单动向赋值:(LARGEINTRD成交量-LARGEOUTTRD成交量)*10000/FINANCE(7)
涨跌动因赋值:IF(TRADENUM>0,(TRADEOUTNUM-TRADEINNUM)*100/TRADENUM,0)
超B赋值:L2_AMO(0,2)/10000.0
大B赋值:L2_AMO(1,2)/10000.0
中B赋值:L2_AMO(2,2)/10000.0
小B赋值:L2_AMO(3,2)/10000.0
超S赋值:L2_AMO(0,3)/10000.0
大S赋值:L2_AMO(1,3)/10000.0
中S赋值:L2_AMO(2,3)/10000.0
小S赋值:L2_AMO(3,3)/10000.0
大单比赋值:(超B+大B+中B)/(超S+大S+中S)
资金定位赋值:大单动向>0.02 AND 涨跌动因>5 AND 大单比>1
MACD价咯1赋值:收盘价的3日指数移动平均 - 收盘价的9日指数移动平均
DEA1021赋值:EMA((EMA(MACD价咯1,102) - EMA(MACD价咯1,204)),9)
DEA511赋值:EMA((EMA(MACD价咯1,51) - EMA(MACD价咯1,102)),9)
DEA36361赋值:EMA((EMA(MACD价咯1,36) - EMA(MACD价咯1,72)),9)
DEA24241赋值:EMA((EMA(MACD价咯1,24) - EMA(MACD价咯1,48)),9)
DEA18181赋值:EMA((EMA(MACD价咯1,18) - EMA(MACD价咯1,36)),9)
DEA661赋值:EMA((EMA(MACD价咯1,6) - EMA(MACD价咯1,12)),9)
DEA331赋值:EMA((EMA(MACD价咯1,3) - EMA(MACD价咯1,9)),9)
DEA12121赋值:EMA((EMA(MACD价咯1,12) - EMA(MACD价咯1,24)),9)
MACD24241赋值:2*((MACD价咯1的24日指数移动平均 - MACD价咯1的48日指数移动平均)-DEA24241)
HH1赋值:(20*H+19*1日前的H+18*2日前的H+17*3日前的H+16*4日前的H+15*5日前的H+14*6日前的H
+13*7日前的H+12*8日前的H+11*9日前的H+10*10日前的H+9*11日前的H+8*12日前的H
+7*13日前的H+6*14日前的H+5*15日前的H+4*16日前的H+3*17日前的H+2*18日前的H+
20日前的H)/210, 画蓝色,LINETHICK1
LL1赋值:(20*L+19*1日前的L+18*2日前的L+17*3日前的L+16*4日前的L+15*5日前的L+14*6日前的L
+13*7日前的L+12*8日前的L+11*9日前的L+10*10日前的L+9*11日前的L+8*12日前的L
+7*13日前的L+6*14日前的L+5*15日前的L+4*16日前的L+3*17日前的L+2*18日前的L+
20日前的L)/210, 画蓝色,LINETHICK1
D90H1赋值:HH1的90日指数移动平均,画红色,LINETHICK1
D90L1赋值:LL1的90日指数移动平均,画红色,LINETHICK1
D901赋值:(D90H1+D90L1)/2
Y1M赋值:EMA(SLOPE((收盘价+最高价+最低价)/3,24)*20+(收盘价+最高价+最低价)/3,48)
CCI151赋值:((最高价+最低价+收盘价)/3-MA((最高价+最低价+收盘价)/3,15))/(0.015*AVEDEV((最高价+最低价+收盘价)/3,15))
CCI101赋值:((最高价+最低价+收盘价)/3-MA((最高价+最低价+收盘价)/3,10))/(0.015*AVEDEV((最高价+最低价+收盘价)/3,10))
CCI51赋值:((最高价+最低价+收盘价)/3-MA((最高价+最低价+收盘价)/3,5))/(0.015*AVEDEV((最高价+最低价+收盘价)/3,5))
CCI31赋值:((最高价+最低价+收盘价)/3-MA((最高价+最低价+收盘价)/3,3))/(0.015*AVEDEV((最高价+最低价+收盘价)/3,3))
CCI买点定位1赋值:CCI51上穿0 AND CCI31上穿0 AND 1日前的CCI151>0 AND 1日前的CCI101>-30 AND 1日前的CCI151>1日前的CCI101 AND 1日前的CCI101>1日前的CCI51
CCI买点定位2赋值:CCI31上穿0 AND CCI51>1日前的CCI51 AND 1日前的CCI51<-100 AND 1日前的CCI151>0 AND 1日前的CCI101>-30 AND 1日前的CCI151>1日前的CCI101 AND 1日前的CCI101>1日前的CCI51
CCI买点定位3赋值:CCI51上穿0 AND CCI31上穿0 AND 1日前的CCI101>0 AND 1日前的CCI101>1日前的CCI151
CCI买点定位赋值:CCI买点定位1=1 OR CCI买点定位2=1 OR CCI买点定位3=1
起爆金股1赋值:CCI买点定位=1 AND DEA12121>DEA18181 AND DEA18181>DEA24241 AND DEA24241>DEA36361 AND DEA36361>DEA511 AND DEA511>=DEA1021 AND DEA18181>1日前的DEA18181 AND DEA24241>1日前的DEA24241 AND DEA36361>1日前的DEA36361 AND DEA511>1日前的DEA511 AND DEA1021>1日前的DEA1021 AND DEA36361>0 AND DEA331>0
起爆金股2赋值:CCI买点定位=1 AND DEA12121>DEA18181 AND DEA18181>DEA24241 AND DEA24241>DEA36361 AND DEA18181>DEA1021 AND DEA18181>1日前的DEA18181 AND DEA24241>1日前的DEA24241 AND DEA36361>1日前的DEA36361 AND DEA511>1日前的DEA511 AND DEA1021>1日前的DEA1021 AND DEA18181>0 AND DEA331>0
起爆金股赋值:起爆金股1=1 OR 起爆金股2=1
VOL比赋值:成交量/1日前的成交量
高度1赋值:(D90H1-D90L1)*4+D90H1
PBX11赋值:(EXPMA((收盘价+最高价+最低价)/3,4)+EMA((收盘价+最高价+最低价)/3,4*2)+EMA((收盘价+最高价+最低价)/3,4*4))/3
PBX22赋值:(EXPMA((收盘价+最高价+最低价)/3,5)+EMA((收盘价+最高价+最低价)/3,5*2)+EMA((收盘价+最高价+最低价)/3,5*4))/3
PBXHH赋值:(H的2日指数移动平均+H的2*2日指数移动平均+H的2*4日指数移动平均)/3,画绿色,LINETHICK1
PBXLL赋值:(L的2日指数移动平均+L的2*2日指数移动平均+L的2*4日指数移动平均)/3,画红色,LINETHICK1
PBX高赋值:1日前的PBXHH,画绿色,LINETHICK1
PBX低赋值:1日前的PBXLL,画红色,LINETHICK1
PMX差赋值:PBX高-PBX低
起爆止盈价赋值:PBX高+PMX差*2,画白色,LINETHICK1
起爆获利率赋值:(起爆止盈价-PBX高)/PBX高*100
起爆止损价赋值:PBX低-PMX差*0.7,画白色,LINETHICK1
起爆止损率赋值:(起爆止损价-PBX高)/PBX高*100
海底蛟龙赋值:(收盘价+最高价+最低价)/3
云上天龙赋值:(收盘价+最高价+最低价)/3>D901 AND (收盘价+最高价+最低价)/3>Y1M AND 起爆金股=1 AND C<高度1 AND PBX11>PBX22 AND L
起爆点赋值:海底蛟龙=1 OR 云上天龙=1
当满足条件起爆点=1 AND C
当满足条件起爆点=1 AND C>PBX高时,在PBX高和开盘价之间画柱状线
当满足条件起爆点=1时,在L和1之间画图标