给两个编程时经常用到的代码，一是获取本机的MAC地址，二是获得本机的计算机名

1.获取本机MAC地址，MAC是每个电脑的唯一标识，在编程中经常用到，C#代码如下

/// 获取本机的MAC地址
	///
        ///
	private string getMAC()
        {
            try
            {
                string mac = string.Empty;
                ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    if (mo["IPEnabled"].ToString() == "True")
                    {
                        mac = mo["MacAddress"].ToString();
                    }
                }
                string outPutStr = string.Format("MAC:{0}", mac);
               return outPutStr;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
                return null;
            }
        }

2.获得计算机名

	string ComputerName=System.Environment.MachineName;