文档介绍：海龟交易系统(文华用指标，主图)
C:=CLOSE;
O:=OPEN;
H:=HIGH;
L:=LOW;
STICKLINE(O>=C,C,O,COLORCY AN,0);
DRAWLINE(O>=C,H,O>=C,L,COLORCY AN);
STICKLINE(C>=O,C,O,COLORRED,1);
DRAWLINE(C>=O,C,C>=O,H,COLORRED);
DRAWLINE(C>=O,L,C>=O,O,COLORRED);
LC:=REF(CLOSE,1);
TR:=MAX((HIGH - LOW),MAX((HIGH - LC),(LC - LOW)));
ATR:=SMA(TR,20,1);
AA:=(HHV(HIGH,N1) - (2 * ATR));
BB:=CROSS(CLOSE,REF(HHV(HIGH,55),1));
SSS:=CROSS(MIN(MA(CLOSE,13),AA),CLOSE);
BBB:=BARSLAST(BB)-1;
SSSB:=BARSLAST(SSS)-1;
B1:=((BBB = 0) && (REF(SSSB,1) < REF(BBB,1)));
B1B:=BARSLAST(B1);
B2:=((((BB = 1) && (B1B < SSSB)) && (B1B > 0)) && (COUNT(BB,SSSB) < 3));
B2B:=BARSLAST(B2);
B3:=((((BB = 1) && (B2B < B1B)) && (COUNT(BB,SSSB) < 4)) && (COUNT(BB,SSSB) > 2));
B3B:=BARSLAST(B3);
SS:=CROSS(MAX(AA,MA(CLOSE,13)),CLOSE);
SS1:=(((SS && ((B3B < B2B) || (B2B < B1B))) && (SSSB > B1B)) && (COUNT(SS,B2B) <
);
SS1B:=BARSLAST(SS1);
SS2:=(((