摘要：
1 protected void updown() 2 { 3 int id = Convert.ToInt32(Request.QueryString["id"].ToString()); 4 string sqlUp = string.Format("select top 1 title, max(id) as id from blog where id<'{0}' group by title order by id desc",id); 5 string sqlDown = string.Format("selec 阅读全文