{纯成交量选股-OBV选股公式}

M:=18;{可设为参数:M(10,30,18)}
MAOBV:=MA(OBV,M);{178448.COM-WEN98编制}
XG: REF(COUNT(OBV<=MAOBV,8)=8,1) AND CROSS(OBV,MAOBV) AND DYNAINFO(9)>0;