通达信操盘密码主图（有图，求7密码横线用法诠释）

买线:=EMA(C,2);
卖线:=EMA(SLOPE(C,21)*20+C,42);
BU:=crOSS(买线,卖线);
SEL:=CROSS(卖线,买线);
DRAWICON(BU,L-0.1,1);
DRAWICON(SEL,H+0.1,2);
STICKLINE(买线>=卖线,LOW,HIGH,0.0,1),COLORRED;
STICKLINE(买线>=卖线,CLOSE,OPEN,2,1),COLORRED;
STICKLINE(买线<卖线,LOW,HIGH,0.0,1),COLORGREEN;
STICKLINE(买线<卖线,CLOSE,OPEN,2,1),COLORGREEN;
散户:EMA(CLOSE,5),COLORWHITE;
操盘:MA(CLOSE,9),COLORCYAN,LINETHICK2;
IF(操盘>REF(操盘,1),操盘,DRAWNULL),LINETHICK3,COLORYELLOW;
界点:MA(CLOSE,20),COLORMAGENTA;
LC:=REF(CLOSE,1);
rsi:=((SMA(MAX((CLOSE - LC),0),3,1) / SMA(ABS((CLOSE - LC)),3,1)) * 100);
FF:=EMA(CLOSE,3);
MA15:=EMA(CLOSE,21);
日:=150;昨前:=3;
高1:=REF(HHV(H,日),昨前);
低1:=REF(LLV(L,日),昨前);
H1:=高1-(高1-低1)*0.191;
H2:=高1-(高1-低1)*0.382;
H3:=高1-(高1-低1)*0.5;
H4:=高1-(高1-低1)*0.618;
H5:=高1-(高1-低1)*0.809;
顶:REFDATE(高1,DATE),COLORRED;
一0.809:REFDATE(H1,DATE),COLORYELLOW;
二0.618:REFDATE(H2,DATE),COLORMAGENTA;
三0.500:REFDATE(H3,DATE),COLORWHITE;
四0.382:REFDATE(H4,DATE),COLORGREEN;
五0.191:REFDATE(H5,DATE),COLORYELLOW;
低:REFDATE(低1,DATE),COLORRED;
DRAWICON(C<MA(C,250) AND C>MA(C,10) AND REF(C,1)<REF(O,1)*0.97 AND C/O>1.03 AND
V/CAPITAL>0.03,L*0.97,9);