VA:=IF(CLOSE REF(CLOSE,1),VOL,-VOL);
OBV:=SUM(IF(CLOSE=REF(CLOSE,1),0,VA),0);
MAOBV:=MA(OBV,20),COLORGREEN;
M2:=MA(OBV,3),COLORGREEN;
IF(A3 REF(A3,1) OR C A3,A3,DRAWNULL),COLORWHITE,LINETHICK1;
IF(M2 REF(M2,1),A3,DRAWNULL),COLORWHITE,LINETHICK2;
IF(MAOBV REF(MAOBV,1) AND C A10,A10,DRAWNULL),COLORRED,LINETHICK3;
IF( C A10,A10,DRAWNULL),COLORWHITE,LINETHICK1;
IF( C 黄变绿色止损线 AND MAOBV REF(MAOBV,1) ,黄变绿色止损线,DRAWNULL),COLORYELLOW,LINETHICK3;