效果：

说明：获取本局域网的MAC地址（非本机的MAC地址）

代码：

复制代码 代码如下:

/// <summary>

/// 获取网卡物理地址

/// </summary>

/// <returns></returns>

public static string getMAC()

{

string madAddr = null;

ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

ManagementObjectCollection moc2 = mc.GetInstances();

foreach (ManagementObject mo in moc2)

{

if (Convert.ToBoolean(mo["IPEnabled"]) == true)

{

madAddr = mo["MacAddress"].ToString();

madAddr = madAddr.Replace(':', '-');

}

mo.Dispose();

}

return madAddr;

}