请高手帮忙解决一个引用问题，谢谢！！

夜谈天方

日线图上引用周线图的中间价（周线高+周线低）/2
还要上周的（周线高+周线低）/2

陪练专家

周线中间价:(H#WEEK+L#WEEK)/2;
XJ:=BARSLAST(WEEKDAY<REF(WEEKDAY,1));
上周线中间价:REF((H#WEEK+L#WEEK)/2,XJ+1);