在.net 4.5中，判断操作系统不用再写方法去判断了，有直接可以利用的属性了哦，如下所示：

Environment.Is64BitProcess 属性

.NET Framework 4.5       

 

确定当前进程是否为 64 位进程。

 

    当然如果是用的.net 4.5以前的童鞋也不必担心，同样也可以用以下的方法来实现判断系统位数。

    private string Distinguish64or32System()

        {

            try

            {

                string addressWidth = String.Empty;

                ConnectionOptions mConnOption = new ConnectionOptions();

                ManagementScope mMs = new ManagementScope("//localhost", mConnOption);

                ObjectQuery mQuery = new ObjectQuery("select AddressWidth from Win32_Processor");

                ManagementObjectSearcher mSearcher = new ManagementObjectSearcher(mMs, mQuery);

                ManagementObjectCollection mObjectCollection = mSearcher.Get();

                foreach (ManagementObject mObject in mObjectCollection)

                {

                    addressWidth = mObject["AddressWidth"].ToString();

                }

                return addressWidth;

            }

            catch (Exception ex)

            {

              

                return String.Empty;

            }

        }