C#做的CPU内存使用率

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Threading;
using System.Runtime.InteropServices;
using System.Management;
namespace CPU_Detect
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        Process[] MyProcesses;
        Thread td;
        private void myUser()
        {
            ManagementObjectSearcher searcher = new ManagementObjectSearcher("select * from Win32_Processor");
            foreach (ManagementObject myobject in searcher.Get())
            {
                tssluse.Text = myobject["LoadPercentage"].ToString()+" %";
                lblCPU.Text = myobject["LoadPercentage"].ToString() + " %";
                mheight = Convert.ToInt32(myobject["LoadPercentage"].ToString());
                if (mheight == 100)
                    panel3.Height = 100;
                CreateImage();
                Memory();
            }
        }

        private void Memory()
        {
            Microsoft.VisualBasic.Devices.Computer myInfo = new Microsoft.VisualBasic.Devices.Computer();
            //获取物理内存总量
            pbMemorySum.Maximum = Convert.ToInt32(myInfo.Info.TotalPhysicalMemory/1024/1024);
            pbMemorySum.Value   = Convert.ToInt32(myInfo.Info.TotalPhysicalMemory/1024/1024);
            lblSum.Text = (myInfo.Info.TotalPhysicalMemory / 1024).ToString();
            //获取可用物理内存总量
            pbMemoryUse.Maximum = Convert.ToInt32(myInfo.Info.TotalPhysicalMemory/1024/1024);
            pbMemoryUse.Value   = Convert.ToInt32(myInfo.Info.AvailablePhysicalMemory/1024/1024);
            lblMuse.Text = (myInfo.Info.AvailablePhysicalMemory / 1024).ToString();
            //获取虚拟内存总量
            pbVmemorysum.Maximum = Convert.ToInt32(myInfo.Info.TotalVirtualMemory/1024/1024);
            pbVmemorysum.Value   = Convert.ToInt32(myInfo.Info.TotalVirtualMemory/1024/1024);
            lblVinfo.Text = (myInfo.Info.TotalVirtualMemory / 1024).ToString();
            //获取可用虚拟内存总量
            pbVmemoryuse.Maximum = Convert.ToInt32(myInfo.Info.TotalVirtualMemory / 1024 / 1024);
            pbVmemoryuse.Value = Convert.ToInt32(myInfo.Info.AvailableVirtualMemory/ 1024 / 1024);
            lblVuse.Text = (myInfo.Info.AvailableVirtualMemory / 1024).ToString();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            CheckForIllegalCrossThreadCalls = false;
            MyProcesses = Process.GetProcesses();
            tsslNum.Text = MyProcesses.Length.ToString();
            myUser();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            MyProcesses = Process.GetProcesses();
            tsslNum.Text = MyProcesses.Length.ToString();
            td = new Thread(new ThreadStart(myUser));
            td.Start();
        }

        private void Form1_FormClosed(object sender, FormClosedEventArgs e)
        {
            if (td != null)
            {
                td.Abort();
            }
        }
        int mheight = 0;
        private void CreateImage()
        {
            int i=panel3.Height/100;
            Bitmap image = new Bitmap(panel3.Width,panel3.Height);
            Graphics g = Graphics.FromImage(image);
            g.Clear(Color.Green);
            SolidBrush mybrush = new SolidBrush(Color.Lime);
            g.FillRectangle(mybrush,0,panel3.Height-mheight*i,26,mheight*i);
            panel3.BackgroundImage = image;
        }
    }
}

C#做的CPU内存使用率

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原文地址：http://blog.csdn.net/lucky51222/article/details/44286823