public class Computer    {        public static string CpuID; //1.cpu序列号        public static string MacAddress; //2.mac序列号        public static string DiskID; //3.硬盘id        public static string IpAddress; //4.ip地址        public static string LoginUserName; //5.登录用户名        public static string ComputerName; //6.计算机名        public static string SystemType; //7.系统类型        public static string TotalPhysicalMemory; //8.内存量 单位：M         static   Computer()        {            CpuID = GetCpuID();            MacAddress = GetMacAddress();            DiskID = GetDiskID();            IpAddress = GetIPAddress();            LoginUserName = GetUserName();            SystemType = GetSystemType();            TotalPhysicalMemory = GetTotalPhysicalMemory();            ComputerName = GetComputerName();        }        //1.获取CPU序列号代码        static  string GetCpuID()        {            try            {                string cpuInfo = "";//cpu序列号                 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            {            }        }        //2.获取网卡硬件地址        static string GetMacAddress()        {            try            {                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            {            }        }        //3.获取硬盘ID        static string GetDiskID()        {            try            {                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            {            }        }        //4.获取IP地址        static string GetIPAddress()        {            try            {                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            {            }        }        /// 5.操作系统的登录用户名        static string GetUserName()        {            try            {                string un = "";                un = Environment.UserName;                return un;            }            catch            {                return "unknow";            }            finally            {            }        }        //6.获取计算机名       static string GetComputerName()        {            try            {                return System.Environment.MachineName;            }            catch            {                return "unknow";            }            finally            {            }        }        ///7 PC类型        static 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            {            }        }        ///8.物理内存               static 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            {            }        }    }