using System;
using System.Collections.Generic;
using System.Text;
using System.Management;
namespace Common
...{
public class GetPhysicsNum
...{
public string GetNetCardMacAddress()
...{
ManagementClass mc;
ManagementObjectCollection moc;
mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
moc = mc.GetInstances();
string str = "";
foreach (ManagementObject mo in moc)