obv-zgj 附图

M:=14;

VA:=IF(CLOSE>REF(CLOSE,1),VOL/10000,-VOL/10000);

OBV:SUM(IF(CLOSE=REF(CLOSE,1),0,VA),0);

MAOBV:MA(OBV,M);

A:HHV(OBV,20);

B:LLV(OBV,20);