直接贴代码：

public class OSInfoMation      {          public static string OSBit()          {              try              {                  ConnectionOptions oConn = new ConnectionOptions();                    System.Management.ManagementScope managementScope = new System.Management.ManagementScope("\\\\localhost", oConn);                    System.Management.ObjectQuery objectQuery = new System.Management.ObjectQuery("select AddressWidth from Win32_Processor");                    ManagementObjectSearcher moSearcher = new ManagementObjectSearcher(managementScope, objectQuery);                    ManagementObjectCollection moReturnCollection = null;                    string addressWidth = null;                    moReturnCollection = moSearcher.Get();                                    foreach (ManagementObject oReturn in moReturnCollection)                  {                      addressWidth = oReturn["AddressWidth"].ToString();                  }                  return addressWidth;              }              catch              {                  return "获取错误";              }            }            public static string GetOsVersion()          {              string osBitString = OSBit();                string osVersionString = Environment.OSVersion.ToString();                return string.Format(@"系统：{0}。位：{1}", osVersionString, osBitString);          }      }

调用：

static void Main(string[] args)          {              Console.WriteLine(OSInfoMation.GetOsVersion());                Console.ReadLine();          }

结果：

系统：Microsoft Windows NT 5.1.2600 Service Pack 3。位：32

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