C#获取MAC

public static List<string> GetMacByWMI()
{
  List<string> macs =new List<string>();
  try
  {
    string mac ="";
    ManagementClass mc =new ManagementClass("Win32_NetworkAdapterConfiguration");
    ManagementObjectCollection moc = mc.GetInstances();
    foreach (ManagementObject mo in moc)
    {
      if ((bool)mo["IPEnabled"])
      {
        mac = mo["MacAddress"].ToString();
        macs.Add(mac);
      }
    }
    moc =null;
    mc =null;
  }
  catch
  {
  }

  return macs;
}