C#调用WMI获取本机MAC地址列表。

private void button1_Click(object sender, System.EventArgs e)
{
            string strsearch=string.Format(@"SELECT MACAddress FROM Win32_NetworkAdapter WHERE ((MACAddress Is Not NULL)AND (Manufacturer <> 'Microsoft'))");

            System.Management.ManagementObjectSearcher msearch=new ManagementObjectSearcher(); 
            msearch.Scope=new ManagementScope(@"root\CIMV2");
            msearch.Query=new ObjectQuery(strsearch);
            int i=1;
            try
{
                if((msearch.Get().Count<1) || (msearch.Get()==null))
{
                    this.listBox1.Items.Add("No MAC Address!");
                }
                else
{
                    foreach(System.Management.ManagementObject mymac in msearch.Get())
{
                        string str1=string.Format("MAC{0} address:{1}",i.ToString(),mymac["MACAddress"].ToString());
                        this.listBox1.Items.Add(str1);
                        i++;
                    }
                }
            }
            catch(Exception ex)
{
                string msg=ex.Message.ToString();
                MessageBox.Show("erro", msg);
            }

        }