MAC电脑唯一地址

/// <summary>

/// MAC地址

/// </summary>

/// <returns></returns>

public static string ReturnMAC()

{

//NetworkInterface 类：

//该类位于 System.Net.NetworkInformation 命名空间

NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();

//Console.WriteLine("适配器个数：" + adapters.Length);

//Console.WriteLine();

//string id=string.Empty;

//foreach (NetworkInterface adapter in adapters)

//{

// Console.WriteLine("描述：" + adapter.Description);

// Console.WriteLine("标识符：" + adapter.Id);

// Console.WriteLine("名称：" + adapter.Name);

// Console.WriteLine("类型：" + adapter.NetworkInterfaceType);

// Console.WriteLine("速度：" + adapter.Speed * 0.001 * 0.001 + "M");

// Console.WriteLine("操作状态：" + adapter.OperationalStatus);

// Console.WriteLine("MAC 地址：" + adapter.GetPhysicalAddress());

// id = adapter.GetPhysicalAddress().ToString();

// // 格式化

// PhysicalAddress pa = adapter.GetPhysicalAddress();

// byte[] bytes = pa.GetAddressBytes();

// StringBuilder sb = new StringBuilder();

// for (int i = 0; i < bytes.Length; i++)

// { // 以十六进制格式化

// sb.Append(bytes[i].ToString("X2"));

// if (i != bytes.Length - 1)

// {

// sb.Append("-");

// }

// }

// Console.WriteLine("MAC 地址：" + sb);

// Console.WriteLine();

//}

return adapters[0].GetPhysicalAddress().ToString();

}