/// <summary>
        /// 删除单条记录
        /// </summary>
        /// <param name="obj">对象</param>
        public int Delete(object obj)
        {

            string sql = "DELETE adctab WHERE 1=1  AND aid = @Aid";
            Command db = new Command();
            DbParameter[] ps = new DbParameter[1];
            
            ps[0] = db.CreateParameter("@Aid", obj,DbType.Int32);
            
            return db.Delete(sql,ps);
        }
        /// <summary>
        /// 删除多条记录【批量】
        /// </summary>
        /// <param name="array">数组</param>
        public int Delete(ArrayList array)
        {
            
            if (array == null || array.Count == 0)
                throw new ArgumentNullException("array");
            string sql = string.Format("DELETE adctab  where aid in({0})", StringHelp.Join(array));
            Command db = new Command();

            return db.Delete(sql);
        }