叠加于主图的股指期货交割日

{股指期货交割日}
MNM:=IF(PERIOD=5,1, {日}DRAWNULL);
交割日:SUM(WEEKDAY=5 AND MNM,BARSLAST(MONTH!=REF(MONTH,1))+1)=3 AND WEEKDAY=5,COLORYELLOW,NODRAW;
DRAWTEXT(交割日,H+0.50,'↙交割日'),COLORYELLOW;{股指期货交割日};

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