N:=20;
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;

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