C#实现获取MAC地址的方法

/// <summary>
/// 根据网卡类型来获取mac地址
/// </summary>
/// <param name="networkType">网卡类型</param>
/// <param name="macAddressFormatHanlder">格式化获取到的mac地址</param>
/// <returns>获取到的mac地址</returns>
public static string GetMacAddress(NetworkInterfaceType networkType, Func<string, string> macAddressFormatHanlder)
{
  string _mac = string.Empty;
  NetworkInterface[] _networkInterfaces = NetworkInterface.GetAllNetworkInterfaces();
  foreach (NetworkInterface adapter in _networkInterfaces)
  {
 if (adapter.NetworkInterfaceType == networkType)
 {
   _mac = adapter.GetPhysicalAddress().ToString();
   if (!String.IsNullOrEmpty(_mac))
 break;
 }
  }
  if (macAddressFormatHanlder != null)
 _mac = macAddressFormatHanlder(_mac);
  return _mac;
}
/// <summary>
/// 根据网卡类型以及网卡状态获取mac地址
/// </summary>
/// <param name="networkType">网卡类型</param>
/// <param name="status">网卡状态</param>
///Up 网络接口已运行，可以传输数据包。 
///Down 网络接口无法传输数据包。 
///Testing 网络接口正在运行测试。 
///Unknown 网络接口的状态未知。 
///Dormant 网络接口不处于传输数据包的状态；它正等待外部事件。 
///NotPresent 由于缺少组件（通常为硬件组件），网络接口无法传输数据包。 
///LowerLayerDown 网络接口无法传输数据包，因为它运行在一个或多个其他接口之上，而这些“低层”接口中至少有一个已关闭。 
/// <param name="macAddressFormatHanlder">格式化获取到的mac地址</param>
/// <returns>获取到的mac地址</returns>
public static string GetMacAddress(NetworkInterfaceType networkType, OperationalStatus status, Func<string, string> macAddressFormatHanlder)
{
  string _mac = string.Empty;
  NetworkInterface[] _networkInterfaces = NetworkInterface.GetAllNetworkInterfaces();
  foreach (NetworkInterface adapter in _networkInterfaces)
  {
 if (adapter.NetworkInterfaceType == networkType)
 {
   if (adapter.OperationalStatus != status) continue;
   _mac = adapter.GetPhysicalAddress().ToString();
   if (!String.IsNullOrEmpty(_mac)) break;
 }
  }
  if (macAddressFormatHanlder != null)
 _mac = macAddressFormatHanlder(_mac);
  return _mac;
}
/// <summary>
/// 获取读到的第一个mac地址
/// </summary>
/// <returns>获取到的mac地址</returns>
public static string GetMacAddress(Func<string, string> macAddressFormatHanlder)
{
  string _mac = string.Empty;
  NetworkInterface[] _networkInterfaces = NetworkInterface.GetAllNetworkInterfaces();
  foreach (NetworkInterface adapter in _networkInterfaces)
  {
 _mac = adapter.GetPhysicalAddress().ToString();
 if (!string.IsNullOrEmpty(_mac))
   break;
  }
  if (macAddressFormatHanlder != null)
 _mac = macAddressFormatHanlder(_mac);
  return _mac;
}