c# 读取网卡Mac

        ///<summary>

        /// 通过NetworkInterface读取网卡Mac

        ///</summary>

        ///<returns></returns>

        public static string GetMacByNetworkInterface()

        {

            List<string> macs = new List<string>();

            NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces();

            return interfaces.Where(p => p.OperationalStatus == OperationalStatus.Up).FirstOrDefault().GetPhysicalAddress().ToString();

        }