/// <summary>
        /// 把表中的一行数据转换成对象
        /// </summary>
        /// <param name="dr">表中的一行数据</param>
        /// <returns></returns>
        private CmdInfo RowToCmdInfo(DataRow dr)//DataRow表示DataTable中的一行数据
        {
            CmdInfo cmd = new CmdInfo();

            cmd.CmdName = dr["CmdName"].ToString();
            cmd.Start   = dr["Start"].ToString();
            cmd.Length  = dr["Length"].ToString();
            cmd.Adress  = dr["Adress"].ToString();
            cmd.Model   = dr["Model"].ToString();
            cmd.Port    = dr["Port"].ToString();
            cmd.StrPram = dr["StrPram"].ToString();
            cmd.End     = dr["End"].ToString();
            return(cmd);
        }
        /// <summary>
        /// 根据发送命令,在数据库中查找对应的命令
        ///
        /// </summary>
        /// <param name="cmdName"></param>
        /// <returns></returns>
        public CmdInfo CmdByCmdName_DAL(string cmdName)
        {
            string sql = "select * from MMI where CmdName=@cmdName";

            DataTable dt  = SqliteHelper.ExecuteTable(sql, new SQLiteParameter("@cmdName", cmdName));
            CmdInfo   cmd = null;

            if (dt.Rows.Count > 0)
            {
                foreach (DataRow dr in dt.Rows)
                {
                    cmd = RowToCmdInfo(dr);
                }
            }
            return(cmd);
        }