C# 获取网卡MAC的两种方式

获取网卡MAC第一种

不能判断当前使用的是那张网卡

 1         /// <summary>
 2         /// 获取网卡ID代码 
 3         /// </summary>
 4         /// <returns></returns>
 5         public static string GetNetworkAdpaterID()
 6         {
 7             NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
 8             return nics[0].GetPhysicalAddress().ToString();
 9 
10         }

获取网卡MAC第二种

可以判断出来当前使用的是哪张网卡 但是要引入

using System.Management;

        /// <summary>
        /// 获取网卡ID代码 
        /// </summary>
        /// <returns></returns>
        public static string GetNetworkAdpaterID()
        {
            try
            {
                string mac = "";
                ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                    if ((bool)mo["IPEnabled"] == true)
                    {
                        mac += mo["MacAddress"].ToString();
                        break;
                    }
                string[] macs = mac.Split(':');
                mac = "";
                foreach (string m in macs)
                {
                    mac += m;
                }
                moc = null;
                mc = null;
                return mac.Trim();
            }
            catch (Exception e)
            {
                return "uMnIk";
            }

        }