C#获取电脑信息的一些方法

    //取机器名 
        public string GetHostName()
        {
            return System.Net.Dns.GetHostName();
        }

        //取CPU编号
        public String GetCpuID()
        {
            try
            {
                ManagementClass mc = new ManagementClass("Win32_Processor");
                ManagementObjectCollection moc = mc.GetInstances();

                String strCpuID = null;
                foreach (ManagementObject mo in moc)
                {
                    strCpuID = mo.Properties["ProcessorId"].Value.ToString();
                    break;
                }
                return strCpuID;
            }
            catch
            {
                return "";
            }

        }

        //取第一块硬盘编号
        public String GetHardDiskID()
        {
            try
            {
                ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_PhysicalMedia");
                String strHardDiskID = null;
                foreach (ManagementObject mo in searcher.Get())
                {
                    strHardDiskID = mo["SerialNumber"].ToString().Trim();
                    break;
                }
                return strHardDiskID;
            }
            catch
            {
                return "";
            }
        }


        //获取MAC地址
        public string GetMacAddress()
        {
                string strMacAddress = "";
                ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    if ((bool)mo["IPEnabled"] == true)
                    {
                        strMacAddress += mo["MacAddress"].ToString();
                    }
                }
                return strMacAddress;

        }


        #region GetCPUName
        //取得CPU名
        /// <summary>
        /// 取得CPU名
        /// </summary>
        /// <returns>CPU名（例：Intel(R) Xeon(R) CPU X3210 @ 2.13GHz)</returns>
        public  string GetCPUName()
        {
            try
            {
                ManagementClass managementClass = new ManagementClass("Win32_Processor");
                ManagementObjectCollection managementObj = managementClass.GetInstances();
                foreach (ManagementObject mo in managementObj)
                {
                    return mo["Name"].ToString();
                }
                return "Unknown.";
            }
            catch
            {
                return "Unknown.";
            }
        }

        #endregion

        #region GetTotalMemorySize

        /// <summary>
        /// 内存大小
        /// </summary>
        /// <returns>内存大小(KB)</returns>
        public  string GetTotalMemorySize()
        {
            try
            {
                ManagementClass managementClass = new ManagementClass("Win32_OperatingSystem");
                ManagementObjectCollection managementObj = managementClass.GetInstances();
                foreach (ManagementObject mo in managementObj)
                {
                    return mo["TotalVisibleMemorySize"].ToString() + "KB";
                }
                return "Unknown.";
            }
            catch
            {
                return "Unknown.";
            }
        }

        #endregion

        #region GetFreeDiscSpace

        /// <summary>
        /// 指定盘的剩余容量
        /// </summary>
        /// <returns>指定盘的剩余容量(MB)</returns>
        public  string GetFreeDiscSpace(string aDrive)
        {
            try
            {
                System.Diagnostics.PerformanceCounter pc = new System.Diagnostics.PerformanceCounter("LogicalDisk", "Free Megabytes", aDrive + ":");
                return pc.NextValue().ToString() + "MB";
            }
            catch
            {
                return "Unknown.";
            }
        }

        #endregion

        #region GetIPAddress

        /// <summary>
        /// IP地址。
        /// 多个的话，返回第一个
        /// </summary>
        /// <returns>IP地址</returns>
        /// <remarks>
        /// 没取到的时候返回127.0.0.1
        /// </remarks>
        public  string GetIPAddress()
        {
            string[] ips = GetAllIPAddress();
            if (ips.Length > 0)
            {
                return ips[0];
            }
            else
            {
                return "127.0.0.1";
            }
        }

        #endregion

        #region GetAllIPAddress

        /// <summary>
        /// IP地址。
        /// </summary>
        /// <returns>IP地址数组</returns>
        /// <remarks>
        /// 没取到的时候返回长度为0的数组
        /// </remarks>
        public  string[] GetAllIPAddress()
        {
            ArrayList list = new ArrayList();
            string[] ips = new string[0];

            try
            {
                System.Management.ManagementScope scope = new System.Management.ManagementScope("root\\cimv2");
                scope.Connect();
                System.Management.ObjectQuery query
                    = new System.Management.ObjectQuery("Select IPAddress from Win32_NetworkAdapterConfiguration where IPEnabled=TRUE");
                System.Management.ManagementObjectSearcher searcher
                    = new System.Management.ManagementObjectSearcher(scope, query);
                System.Management.ManagementObjectCollection collection = searcher.Get();

                foreach (System.Management.ManagementObject obj in collection)
                {
                    foreach (string ip in (string[])obj.Properties["IPAddress"].Value)
                    {
                        list.Add(ip);
                    }
                }

                ips = (string[])list.ToArray(typeof(string));
            }
            catch (System.Exception e)
            {
                
            }

            return ips;
        }

        #endregion