取前一条
select top 1 * from Info where ID<" + 当前的ID号 + " order by ID desc
select top 1 * from Info where ID>" + 当前的ID号 + " order by ID
取前一条
select top 1 * from Info where ID<" + 当前的ID号 + " order by ID desc
select top 1 * from Info where ID>" + 当前的ID号 + " order by ID