获取硬件信息

    public class ComputerInfo
    {
        public ComputerInfo()
        {}

         /// <summary>
        /// cpu型号
        /// </summary>
        /// <returns></returns>
        public string GetCpuInfo()
        {
            ManagementObjectSearcher searcher = new ManagementObjectSearcher(@"root\CIMV2", "SELECT * FROM Win32_Processor");
            foreach (ManagementObject obj2 in searcher.Get())
            {
                try
                {
                    return (obj2.GetPropertyValue("Name").ToString() + "," + obj2.GetPropertyValue("CurrentClockSpeed").ToString() + " Mhz," + Environment.ProcessorCount.ToString() + " 个处理器");
                }
                catch
                {
                    continue;
                }
            }
            return "未知";
        }
        /// <summary>
        /// cpuID
        /// </summary>
        /// <returns></returns>
        public string GetCpuID()
        {
            ManagementObjectCollection instances = new ManagementClass("Win32_Processor").GetInstances();
            foreach (ManagementObject obj2 in instances)
            {
                return obj2.Properties["ProcessorId"].Value.ToString();
            }
            return null;
        }

        /// <summary>
        /// 取得设备硬盘的卷标号
        /// </summary>
        /// <returns></returns>
        public string GetDiskVolumeSerialNumber()
        {
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid=\"c:\"");
            disk.Get();
            return disk.GetPropertyValue("VolumeSerialNumber").ToString();
        }

        /// <summary>
        /// 获得CPU的序列号
        /// </summary>
        /// <returns></returns>
        public string getCpu()
        {
            string strCpu = null;
            ManagementClass myCpu = new ManagementClass("win32_Processor");
            ManagementObjectCollection myCpuConnection = myCpu.GetInstances();
            foreach (ManagementObject myObject in myCpuConnection)
            {
                strCpu = myObject.Properties["Processorid"].Value.ToString();
                break;
            }
            return strCpu;
        }

        /// <summary>
        /// 生成机器码
        /// </summary>
        /// <returns></returns>
        public string getMNum()
        {
            string strNum = getCpu() + GetDiskVolumeSerialNumber();//获得24位Cpu和硬盘序列号
            string strMNum = strNum.Substring(0, 24);//从生成的字符串中取出前24个字符做为机器码
            return strMNum;
        }

        /// <summary> 
        /// 物理内存 
        /// </summary> 
        /// <returns></returns> 
        public string GetTotalPhysicalMemory()
        {
            try
            {
                string st = "";
                ManagementClass mc = new ManagementClass("Win32_ComputerSystem");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    st = mo.ToString();
                }
                moc = null;
                mc = null;
                return st;
            }
            catch
            {
                return "unknow";
            }
        }

        /// <summary> 
        /// 获取计算机名(ComputerName)
        /// </summary> 
        /// <returns></returns> 
        public string GetComputerName()
        {
            try
            {
                return System.Environment.GetEnvironmentVariable("ComputerName");
            }
            catch
            {
                return "unknow";
            }
        }

        /// <summary> 
        /// PC类型 
        /// </summary> 
        /// <returns></returns> 
        public string GetSystemType()
        {
            try
            {
                string st = "";
                ManagementClass mc = new ManagementClass("Win32_ComputerSystem");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    st = mo.ToString();
                }
                moc = null;
                mc = null;
                return st;
            }
            catch
            {
                return "unknow";
            }
        }

        /// <summary> 
        /// 操作系统的登录用户名 
        /// </summary> 
        /// <returns></returns> 
        public string GetUserName()
        {
            try
            {
                string st = "";
                ManagementClass mc = new ManagementClass("Win32_ComputerSystem");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    st = mo.ToString();
                }
                moc = null;
                mc = null;
                return st;
            }
            catch
            {
                return "unknow";
            }
        }
    }