主题：[求助]这个公式如何写最好

barno:barslast(date<>ref(date,1)),linethick0;

highest:ref(hhv(high,barno),1),linethick0;
lowest:ref(llv(low,barno),1),linethick0;

if barno=1 then begin
 upbo:=high>ref(high,1);
 downbo:=low<ref(low,1);
end

if barno>=2 then begin
 upbo:=high>highest;
 downbo:=low<lowest;
end

a:upbo,linethick0;
b:downbo,linethick0;