/// <summary>
        /// 从app.config 文件中获取数据库的类型;
        /// </summary>
        /// <param name="strConnectKey">key的名称</param>
        /// <returns></returns>
        public static string getClientConnectType(string strConnectKey)
        {
            string strConnectType = "";

            foreach (string key in DALUse.getConfig().AppSettings.Settings.AllKeys)
            {
                string value = DALUse.getConfig().AppSettings.Settings[key].Value;
                if (key.Equals(strConnectKey))
                {
                    strConnectType = value.ToUpper();
                    return(strConnectType);
                }
            }
            return("");
        }