OBV附图指标和选股公式

量的分析技术比较欠缺，学习了一下《股票操作学》中关于量的内容，查找了一下通达信OBV的附图指标和选股公式，略加改进，作为量分析的辅助指标。 OBV附图指标
M:=30;
N:=10;
VA:=IF(CLOSE>REF(CLOSE,1),VOL,-VOL);
OBV1:=SUM(IF(CLOSE=REF(CLOSE,1),0,VA),0);
MA130:=MA(OBV,M);
DRAWBAND(MA130,RGB(0,0,80),OBV1,RGB(160,0,000));
A1:=REF(OBV1,N)=HHV(OBV1,2*N+1);
B1:=FILTER(A1,N);
C1:=BACKSET(B1,N+1);
D1:=FILTER(C1,N);
T线:REF(OBV,BARSLAST(D1)),COLORFF00FF,NODRAW;
STICKLINE(C>0,T线,T线,6,0),COLORFF6600;
DRAWICON(CROSS(OBV,T线),T线*0.99,1);
OBV:SUM(IF(CLOSE=REF(CLOSE,1),0,VA),0);
MA30:MA(OBV,M);

OBV选股
N:=10;
VA:=IF(CLOSE>REF(CLOSE,1),VOL,-VOL);
OBV1:=SUM(IF(CLOSE=REF(CLOSE,1),0,VA),0);
A1:=REF(