C#获取CPU序列号，MAC，计算机名等等

using System; 
using System.Management; 
namespace Soyee.Comm 
{ 
    /**//// <summary> 
    /// Computer Information 
    /// </summary> 
    public 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; //单位：M 
        private static Computer _instance; 
        public static Computer Instance() 
        { 
            if (_instance == null) 
                _instance = new Computer(); 
            return _instance; 
        } 
        public  Computer() 
        { 
            CpuID = GetCpuID(); 
            MacAddress = GetMacAddress(); 
            DiskID = GetDiskID(); 
            IpAddress = GetIPAddress(); 
            LoginUserName = GetUserName(); 
            SystemType = GetSystemType(); 
            TotalPhysicalMemory = GetTotalPhysicalMemory(); 
            ComputerName = GetComputerName(); 
        } 
        string GetCpuID() 
        { 
            try 
            { 
                //获取CPU序列号代码 
                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"]..ToString(); 
                } 
                moc = null; 
                mc = null; 
                return cpuInfo; 
            } 
            catch 
            { 
                return "unknow"; 
            } 
            finally 
            { 
            } 

        } 
        string GetMacAddress() 
        { 
            try 
            { 
                //获取网卡硬件地址 
                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 
            { 
                //获取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"].); 
                        st = ar.Get(0).ToString(); 
                        break; 
                    } 
                } 
                moc = null; 
                mc = null; 
                return st; 
            } 
            catch 
            { 
                return "unknow"; 
            } 
            finally 
            { 
            } 

        } 

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

        } 

        /**//// <summary> 
        /// 操作系统的登录用户名 
        /// </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类型 
        /// </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> 
        /// 物理内存 
        /// </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> 
        ///  
        /// </summary> 
        /// <returns></returns> 
        string GetComputerName() 
        { 
            try 
            { 
                return System.Environment.GetEnvironmentVariable("ComputerName"); 
            } 
            catch 
            { 
                return "unknow"; 
            } 
            finally 
            { 
            } 
        } 


    } 
}