【通达信】请老师在通达信K线的上周最高价向右画一横线

周:=WEEKDAY;
TJ:=CONST(REF(HHV(H,周),周));
上周最高价:REF(HHV(H,周),周),NODRAW,;
横线:IF(CONST(SUM(H=TJ,0))=SUM(H=TJ,0),TJ,DRAWNULL);
DRAWTEXT(CROSS(SUM(CROSS(C>横线,0.5),0)=1,0.5),L*0.99,'☆');