obv:SUM(IF(CLOSE REF(CLOSE,1),VOL,IF(CLOSE REF(CLOSE,1),-VOL,0)),0); w5:ma(obv,5); w10:ma(obv,8); w20:ma(obv,13); VAR1:=obv; 支撑:=EMA(VAR1,5); 压力:HHV(支撑,n),COLORRED,linethick2;