.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,COLORCYAN,0);DRAWLINE(O=C,H,O=C,L,COLORCYAN);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) &
