每篇新闻的访问量

#region 修改访问量
        /// <summary>
        /// 修改访问量
        /// </summary>
        /// <param name="id">新闻ID</param>
        /// <param name="traffic">访问量</param>
        /// <returns></returns>
        public bool UpdateTraffic(string id)
        {
            bool flag = false;
            string sql = "update news set traffic=traffic+1 where id=@id";
            SqlParameter[] paras = new SqlParameter[] {
                new SqlParameter("@id", id)
            };
            int res = sqlhelper.ExecuteNonQuery(sql, paras, CommandType.Text);
            if (res > 0)
            {
                flag = true;
            }
            return flag;
        }
        #endregion