C#获取CPU个数

最新推荐文章于 2025-01-19 22:38:34 发布

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最新推荐文章于 2025-01-19 22:38:34 发布

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分类专栏： .net

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首先添加引用

#region Using directives
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
#endregion


namespace ConsoleApplication1
{
    class Program
    {
        //引入32库，kernel32.dll内封装了WIN32 API        
        [DllImport("kernel32")]
        public static extern void GetSystemInfo(ref CPU_INFO cpuinfo);

        [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;
        }

        static void Main(string[] args)
        {
            CPU_INFO CpuInfo;
            CpuInfo = new CPU_INFO();


            //设置为引用类型，可以让CpuInfo的值可以被修改
            GetSystemInfo(ref CpuInfo);


            String Text = "本计算机中有" + 
                                    CpuInfo.dwNumberOfProcessors.ToString() + "个CPU";


            Console.WriteLine(Text);
            Console.ReadKey();
        }
    }
}