参数：M1 1 100 ;3 M2 1 100 6;M3 1 100 12;M4 1 100 24

BBI:(MA(CLOSE,M1)+MA(CLOSE,M2)+MA(CLOSE,M3)+MA(CLOSE,M4))/4,COLORYELLOW;
IF(C>BBI AND BBI>REF(BBI,1),BBI,DRAWNULL),COLORRED;
IF(C<BBI AND BBI<REF(BBI,1),BBI,DRAWNULL),COLORGREEN;