调用API获取系统信息

[DllImport("kernel32")]
public static extern void GetSystemInfo(ref CPU_INFO cpuinfo);
[DllImport("kernel32")]
public static extern void GlobalMemoryStatus(ref MEMORY_INFO meminfo);

[StructLayout( LayoutKind.Sequential)]
public struct MEMORY_INFO
{
public uint dwLength;
/// <summary>
/// 被使用内存(百分率)
/// </summary>
public uint dwMemoryLoad;
/// <summary>
/// 物理内存(字节)
/// </summary>
public uint dwTotalPhys;
/// <summary>
/// 可使用的物理内存(字节)
/// </summary>
public uint dwAvailPhys;
/// <summary>
/// 交换文件总大小(字节)
/// </summary>
public uint dwTotalPageFile;
/// <summary>
/// 尚可交换文件大小(字节)
/// </summary>
public uint dwAvailPageFile;
/// <summary>
/// 总虚拟内存(字节)
/// </summary>
public uint dwTotalVirtual;
/// <summary>
/// 未用虚拟内存(字节)
/// </summary>
public uint dwAvailVirtual;

}

[StructLayout(LayoutKind.Sequential)]
public struct CPU_INFO
{
/// <summary>
/// CPU的OEM_ID
/// </summary>
public uint dwOemId;
/// <summary>
/// CPU中的页面大小
/// </summary>
public uint dwPageSize;
/// <summary>
/// 最小地址
/// </summary>
public uint lpMinimumApplicationAddress;
/// <summary>
/// 最大地址
/// </summary>
public uint lpMaximumApplicationAddress;

public uint dwActiveProcessorMask;
/// <summary>
/// CPU个数
/// </summary>
public uint dwNumberOfProcessors;
/// <summary>
/// CPU的类型
/// </summary>
public uint dwProcessorType;

public uint dwAllocationGranularity;
/// <summary>
/// CPU等级
/// </summary>
public uint dwProcessorLevel;

public uint dwProcessorRevision;
}

//调用GetSystemInfo函数获取CPU的相关信息
CPU_INFO CpuInfo;
CpuInfo = new CPU_INFO();
GetSystemInfo(ref CpuInfo);
Console.WriteLine("本计算机中有" + CpuInfo.dwNumberOfProcessors.ToString() + "个CPU");
Console.WriteLine("CPU的类型为" + CpuInfo.dwProcessorType.ToString());
Console.WriteLine("CPU等级为" + CpuInfo.dwProcessorLevel.ToString());
Console.WriteLine("CPU的OEM ID为" + CpuInfo.dwOemId.ToString());
Console.WriteLine("CPU中的页面大小为" + CpuInfo.dwPageSize.ToString());
Console.WriteLine("" + CpuInfo.dwActiveProcessorMask.ToString());
Console.WriteLine("" + CpuInfo.dwAllocationGranularity.ToString());
Console.WriteLine("" + CpuInfo.dwProcessorRevision.ToString());
Console.WriteLine("" + CpuInfo.lpMaximumApplicationAddress.ToString());
Console.WriteLine("" + CpuInfo.lpMinimumApplicationAddress.ToString());
//调用GlobalMemoryStatus函数获取内存的相关信息
MEMORY_INFO MemInfo;
MemInfo = new MEMORY_INFO();
GlobalMemoryStatus(ref MemInfo);
//感觉的这个使用率有点假
Console.WriteLine(MemInfo.dwMemoryLoad.ToString() + "%的内存正在使用");
Console.WriteLine("物理内存共有" + ((MemInfo.dwTotalPhys/1024)/1024).ToString() + "MB");
Console.WriteLine("可使用的物理内存有" + ((MemInfo.dwAvailPhys/1024)/1024).ToString() + "MB");
Console.WriteLine("交换文件总大小为" + ((MemInfo.dwTotalPageFile/1024)/1024).ToString() + "MB");
Console.WriteLine("尚可交换文件大小为" + ((MemInfo.dwAvailPageFile/1024)/1024).ToString() + "MB");
Console.WriteLine("总虚拟内存有" + ((MemInfo.dwTotalVirtual/1024)/1024).ToString() + "MB");
Console.WriteLine("未用虚拟内存有" + ((MemInfo.dwAvailVirtual/1024)/1024).ToString() + "MB");