请大神帮忙修改该公式，纯新手，学习中

倍量柱：
{副图，成交量倍量标记}
VOLUME:VOL,VOLSTICK;
A1 := VOL;
A2 := REF(V,1);
A3 := REF(V,2);
AA := A2 > A3*1.99;
BB := A1 > A2*1.99;
STICKLINE(AA,0,V,0.1,0),COLORYELLOW;
AND STICKLINE(BB,0,V,0.1,0),COLORYELLOW