#region 通过NetworkInterface获取MAC地址
        /// <summary>
        /// 通过NetworkInterface获取MAC地址
        /// </summary>
        /// <returns></returns>
        public static string GetMacByNetworkInterface()
        {
            try
            {
                NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces();
                foreach (NetworkInterface ni in interfaces)
                {
                    return BitConverter.ToString(ni.GetPhysicalAddress().GetAddressBytes());
                }
            }
            catch (Exception)
            {
            }
            return "00-00-00-00-00-00";
        }
 #endregion