C#获取MAC地址

        /// <summary>
        /// 获取MAC地址
        /// </summary>
        /// <returns></returns>
        public static string[] GetMacAddress()
        {
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();
            //****先得到网卡数目                       
            int i = 0;
            foreach (ManagementObject mo in moc)
            {
                if ((bool)mo["IPEnabled"] == true)
                {
                    i++;
                }
                mo.Dispose();
            }
            //***赋值给数组     
            ManagementClass mc_2 = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc_2 = mc_2.GetInstances();
            string[] array = new string[i];
            int j = 0;
            foreach (ManagementObject mo in moc_2)
            {
                if ((bool)mo["IPEnabled"] == true)
                {
                    string delcolon = mo["MacAddress"].ToString();
                    //delcolon = delcolon.Replace(":", "");
                    array[j] = delcolon;
                    j++;
                }
                mo.Dispose();
            }
            return array;
        }