public class SystemInfo

    {

        [DllImport("kernel32")]

        public static extern void GetSystemDirectory(StringBuilder SysDir, int count);

        [DllImport("kernel32")]

        public static extern void GetSystemInfo(ref CPU_INFO cpuinfo);

        [DllImport("kernel32")]

        public static extern void GlobalMemoryStatus(ref MEMORY_INFO meminfo);

        [DllImport("kernel32")]

        public static extern void GetSystemTime(ref SYSTEMTIME_INFO stinfo);

        PerformanceCounter cpu; MEMORY_INFO MemInfo;

        public SystemInfo()

        {

            cpu = new PerformanceCounter("Processor", "% Processor Time", "_Total");

            MemInfo = new MEMORY_INFO();

        }

        public float[] GetSystemInfo()

        {

            float[] ret = new float[];

            GlobalMemoryStatus(ref MemInfo);

            ret[] = MemInfo.dwMemoryLoad;

            ret[] = cpu.NextValue();

            return ret;

        }

    }

    //定义CPU的信息结构

    [StructLayout(LayoutKind.Sequential)]

    public struct CPU_INFO

    {

        public uint dwOemId;

        public uint dwPageSize;

        public uint lpMinimumApplicationAddress;

        public uint lpMaximumApplicationAddress;

        public uint dwActiveProcessorMask;

        public uint dwNumberOfProcessors;

        public uint dwProcessorType;

        public uint dwAllocationGranularity;

        public uint dwProcessorLevel;

        public uint dwProcessorRevision;

    }

    //定义内存的信息结构

    [StructLayout(LayoutKind.Sequential)]

    public struct MEMORY_INFO

    {

        public uint dwLength;

        public uint dwMemoryLoad;

        public uint dwTotalPhys;

        public uint dwAvailPhys;

        public uint dwTotalPageFile;

        public uint dwAvailPageFile;

        public uint dwTotalVirtual;

        public uint dwAvailVirtual;

    }

    //定义系统时间的信息结构

    [StructLayout(LayoutKind.Sequential)]

    public struct SYSTEMTIME_INFO

    {

        public ushort wYear;

        public ushort wMonth;

        public ushort wDayOfWeek;

        public ushort wDay;

        public ushort wHour;

        public ushort wMinute;

        public ushort wSecond;

        public ushort wMilliseconds;

    }