C#獲取CPU序列號代碼、硬盤ID、網卡硬件地址等類文件

using System;
using System.Management;

namespace CLeopardTestGetIDs
{
    ///   <summary>   
    ///   計算機信息類 
    ///   </summary>   
    internal class Computer
    {
        public string CpuID;
        public string MacAddress;
        public string DiskID;
        public string IpAddress;
        public string LoginUserName;
        public string ComputerName;
        public string SystemType;
        public string TotalPhysicalMemory;   //單位：M   
        private static Computer _instance;

        internal static Computer Instance()
        {
            if (_instance == null)
                _instance = new Computer();
            return _instance;
        }

        internal Computer()
        {
            CpuID = GetCpuID();
            MacAddress = GetMacAddress();
            DiskID = GetDiskID();
            IpAddress = GetIPAddress();
            LoginUserName = GetUserName();
            SystemType = GetSystemType();
            TotalPhysicalMemory = GetTotalPhysicalMemory();
            ComputerName = GetComputerName();
        }
        string GetCpuID()
        {
            try
            {
                //獲取CPU序列號代碼   
                string cpuInfo = " ";//cpu序列號   
                ManagementClass mc = new ManagementClass("Win32_Processor");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    cpuInfo = mo.Properties["ProcessorId"].Value.ToString();
                }
                moc = null;
                mc = null;
                return cpuInfo;
            }
            catch
            {
                return "unknow";
            }
            finally
            {
            }

        }
        string GetMacAddress()
        {
            try
            {
                // 獲取網卡硬件地址   
                string mac = " ";
                ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    if ((bool)mo["IPEnabled"] == true)
                    {
                        mac = mo["MacAddress"].ToString();
                        break;
                    }
                }
                moc = null;
                mc = null;
                return mac;
            }
            catch
            {
                return "unknow ";
            }
            finally
            {
            }

        }
        string GetIPAddress()
        {
            try
            {
                //獲取IP地址   
                string st = " ";
                ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    if ((bool)mo["IPEnabled"] == true)
                    {
                        //st=mo[ "IpAddress "].ToString();   
                        System.Array ar;
                        ar = (System.Array)(mo.Properties["IpAddress"].Value);
                        st = ar.GetValue(0).ToString();
                        break;
                    }
                }
                moc = null;
                mc = null;
                return st;
            }
            catch
            {
                return "unknow ";
            }
            finally
            {
            }

        }

        string GetDiskID()
        {
            try
            {
                //獲取硬盤ID   
                String HDid = " ";
                ManagementClass mc = new ManagementClass("Win32_DiskDrive");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    HDid = (string)mo.Properties["Model"].Value;
                }
                moc = null;
                mc = null;
                return HDid;
            }
            catch
            {
                return "unknow";
            }
            finally
            {
            }

        }

        ///   <summary>   
        ///   操作系統的登錄用戶名   
        ///   </summary>   
        ///   <returns> </returns>   
        string GetUserName()
        {
            try
            {
                string st = " ";
                ManagementClass mc = new ManagementClass("Win32_ComputerSystem");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {

                    st = mo["UserName"].ToString();

                }
                moc = null;
                mc = null;
                return st;
            }
            catch
            {
                return "unknow";
            }
            finally
            {
            }

        }

        ///   <summary>   
        ///   PC類型   
        ///   </summary>   
        ///   <returns> </returns>   
        string GetSystemType()
        {
            try
            {
                string st = " ";
                ManagementClass mc = new ManagementClass("Win32_ComputerSystem");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {

                    st = mo["SystemType"].ToString();

                }
                moc = null;
                mc = null;
                return st;
            }
            catch
            {
                return "unknow";
            }
            finally
            {
            }

        }

        ///   <summary>   
        ///   物理內存   
        ///   </summary>   
        ///   <returns> </returns>   
        string GetTotalPhysicalMemory()
        {
            try
            {

                string st = " ";
                ManagementClass mc = new ManagementClass("Win32_ComputerSystem");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {

                    st = mo["TotalPhysicalMemory"].ToString();

                }
                moc = null;
                mc = null;
                return st;
            }
            catch
            {
                return "unknow";
            }
            finally
            {
            }
        }
        ///   <summary>   
        ///     獲取計算機名稱 
        ///   </summary>   
        ///   <returns> </returns>   
        string GetComputerName()
        {
            try
            {
                return System.Environment.GetEnvironmentVariable("ComputerName");
            }
            catch
            {
                return "unknow";
            }
            finally
            {
            }
        }
    }
}