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N:=20;
MID:=MA(C,N);
VART1:=POW((C-MID),2);
VART2:=MA(VART1,N);
VART3:=SQRT(VART2);
UPPER:=MID+2*VART3;
LOWER:=MID-2*VART3;
boll:REF(MID,1),COLORFFFFFF;
上升:IF(BOLL>REF(BOLL,1),BOLL,DRAWNULL),COLORRED,LINETHICK1;
下降:IF(BOLL<REF(BOLL,1),BOLL,DRAWNULL),COLORGREEN,LINETHICK1;
UB:REF(UPPER,1),COLOR00FFFF;
LB:REF(LOWER,1),COLORFF00FF;
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