/// <summary>
        /// 设置读写器为ISO14443A模式。
        /// </summary>
        public bool Change14443()
        {
            int ret = 0x30;

            ret = StaticClassReaderA.ChangeToISO14443A(ref _readerAddr, _portIndex);
            if (ret == 0)
            {
                return(true);
            }
            else
            {
                Loger.Error(GetReturnCodeMessage(ret));
                return(false);
            }
        }
        /// <summary>
        /// 打开串口
        /// </summary>
        public bool OpenComPort()
        {
            int  ret   = 0x30;
            byte fbaud = 0; //用该值设置或更改串口通讯控件的波特率

            _autoOpenComPort = Convert.ToBoolean(ConfigurationManager.AppSettings["AutoOpenComPort"]);
            if (_autoOpenComPort)
            {
                ret = StaticClassReaderA.AutoOpenComPort(ref _comPort, ref _readerAddr, fbaud, ref _portIndex); //自动连接串口
            }
            else
            {
                _comPort = Convert.ToInt32(ConfigurationManager.AppSettings["ComPort"]);
                for (int i = 0; i <= 3; i++)
                {
                    fbaud = Convert.ToByte(i);
                    ret   = StaticClassReaderA.OpenComPort(_comPort, ref _readerAddr, fbaud, ref _portIndex);
                }
            }
            if (ret == 0x30 || ret == 0x35)//端口已经打开
            {
                CloseComPort();
                ret = 0x30;
                if (_autoOpenComPort)
                {
                    ret = StaticClassReaderA.AutoOpenComPort(ref _comPort, ref _readerAddr, fbaud, ref _portIndex); //自动连接串口
                }
                else
                {
                    for (int i = 0; i <= 3; i++)
                    {
                        fbaud = Convert.ToByte(i);
                        ret   = StaticClassReaderA.OpenComPort(_comPort, ref _readerAddr, fbaud, ref _portIndex);
                    }
                }
            }
            if (ret == 0)
            {
                return(true);
            }
            else
            {
                Loger.Error(GetReturnCodeMessage(ret));
                return(false);
            }
        }
        /// <summary>
        /// 读取有效范围内14443A卡的序列号。
        /// </summary>
        /// <param name="hid">14443A卡的序列号。</param>
        ///
        public bool GetHid(ref string hid)
        {
            int ret = 0x30;

            byte[] sn = new byte[4];
            ret = StaticClassReaderA.GetUIDofHID(ref _readerAddr, sn, _portIndex);
            if (ret == 0)
            {
                hid = ByteArrayToHexString(sn);
                return(true);
            }
            else
            {
                Loger.Error(GetReturnCodeMessage(ret));
                return(false);
            }
        }
        /// <summary>
        /// 检查有效范围内是否有符合协议的电子标签存在。
        /// </summary>
        /// <param name="uidList">符合协议的电子标签序列号集合</param>
        public bool GetUidList(out IEnumerable <string> uidList)
        {
            int  ret   = 0x30;
            byte state = 6;                      //默认不带AFI的InventoryScan
            byte afi   = 0;                      //当查询命令为Selected模式时,需要输入电子标签的AFI数值。

            byte[] dsfidAndUid = new byte[2300]; //指向输出数组变量,每个数组单元为9个字节,包括8个字节的UID和1个字节的DSFID信息。数组中的有效数据总量为CardNum*9个字节。
            byte   cardNumber  = 0;              //电子标签的张数。

            ret = StaticClassReaderA.Inventory(ref _readerAddr, ref state, ref afi, dsfidAndUid, ref cardNumber, _portIndex);
            switch (ret)
            {
            case 0x0A:
            case 0x0B:
            case 0x0E:
            {
                Array.Resize(ref dsfidAndUid, cardNumber * 9);
                string str = ByteArrayToHexString(dsfidAndUid);
                if (ret == 0x0E || ret == 0x0B)
                {
                    uidList = Enumerable.Range(0, cardNumber).Select(i => str.Substring(18 * i, 18).Substring(2, 16));
                    return(true);
                }
            }
            break;

            default:
            {
                Loger.Error(GetReturnCodeMessage(ret));
            }
            break;
            }

            uidList = Enumerable.Empty <string>();
            return(false);
        }
 public void CloseComPort()
 {
     StaticClassReaderA.CloseSpecComPort(_portIndex);
 }