C#精髓第二讲 WMI完美秀出CPU编号厂商主频电压等全部信息

关于WMI MSDN有详细说明。 本文列举数例算抛砖引玉吧。WMI是个好东西，看过本文后也许你应该能举一反三参考MSDN也许自己做个优化大师也是可能的。

本文的例子在以下环境调试通过：Windows2003+AMD64双核CPU+VisualStudio2005(C#)下调试通过，无错版！

首先要添加“引用”一个dll，选择“System Management”；

再引入2个命名空间：
using  System.Management;
using  System.IO;

foreach循环：声明一个迭代变量自动获取数组中每个元素的值。
String.Format：格式化字符，本站就有解释。

代码：

Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Management;
using System.IO;
namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //获取CPU编号
            ManagementClass MyClass = new ManagementClass("Win32_Processor");
            ManagementObjectCollection MyCollection = MyClass.GetInstances();
            String MyInfo = "当前系统CPU编号是：";
            string MyCPUID = "";
            foreach (ManagementObject MyObject in MyCollection)
            {
                MyCPUID = MyObject.Properties["ProcessorId"].Value.ToString();
                break;
            }
            MyInfo += MyCPUID;
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

        private void button2_Click(object sender, EventArgs e)
        {
            //获取计算机CPU的当前电压
            String MyInfo = "计算机CPU的当前电压是：";
            ManagementObjectSearcher MySearcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
            foreach (ManagementObject MyObject in MySearcher.Get())
            {
                try
                {
                    MyInfo += "\n" + String.Format("CurrentVoltage : " + MyObject["CurrentVoltage"].ToString());
                    MyInfo += "\n=========================================================";
                }
                catch { }
            }
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //获取计算机CPU的外部频率
            String MyInfo = "计算机CPU的外部频率是：";
            ManagementObjectSearcher MySearcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
            foreach (ManagementObject MyObject in MySearcher.Get())
            {
                try
                {
                    MyInfo += "\n" + String.Format("ExtClock : " + MyObject["ExtClock"].ToString());
                    MyInfo += "\n=========================================================";
                }
                catch { }
            }
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

        private void button4_Click(object sender, EventArgs e)
        {
            //获取计算机CPU的二级缓存
            String MyInfo = "计算机CPU的二级缓存尺寸是：";
            ManagementObjectSearcher MySearcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
            foreach (ManagementObject MyObject in MySearcher.Get())
            {
                MyInfo += "\n" + String.Format("L2CacheSize: " + MyObject["L2CacheSize"].ToString());
                MyInfo += "\n=========================================================";
            }
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

        private void button5_Click(object sender, EventArgs e)
        {
            //获取计算机CPU的制造商名称
            String MyInfo = "计算机CPU的制造商名称是：";
            ManagementObjectSearcher MySearcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
            foreach (ManagementObject MyObject in MySearcher.Get())
            {
                MyInfo += "\n" + String.Format("Manufacturer : " + MyObject["Manufacturer"].ToString());
                MyInfo += "\n=========================================================";
            }
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

        private void button6_Click(object sender, EventArgs e)
        {
            //获取计算机CPU的产品名称
            String MyInfo = "计算机CPU的产品名称是：";
            ManagementObjectSearcher MySearcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
            foreach (ManagementObject MyObject in MySearcher.Get())
            {
                MyInfo += "\n" + String.Format("Name : " + MyObject["Name"].ToString());
                MyInfo += "\n=========================================================";
            }
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

        }

        private void button7_Click(object sender, EventArgs e)
        {
            //获取计算机CPU的版本信息
            String MyInfo = "计算机CPU的版本信息如下：";
            ManagementObjectSearcher MySearcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
            foreach (ManagementObject MyObject in MySearcher.Get())
            {
                MyInfo += "\n" + String.Format("Version: " + MyObject["Version"].ToString());
                MyInfo += "\n=========================================================";
            }
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

        }

        private void button8_Click(object sender, EventArgs e)
        {
            //获取计算机CPU的当前使用百分比 注意要把SQLserver或者其他耗CPU的软件开着否则看不到效果就一直为0
            String MyInfo = "计算机CPU的当前使用百分比是：";
            ManagementObjectSearcher MySearcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
            foreach (ManagementObject MyObject in MySearcher.Get())
            {
                MyInfo += "\n" + String.Format("LoadPercentage : " + MyObject["LoadPercentage"].ToString());
                MyInfo += "\n=========================================================";
            }
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

        }

        private void button9_Click(object sender, EventArgs e)
        {
            //获取计算机CPU的最大时钟频率
            String MyInfo = "计算机CPU的最大时钟频率是：";
            ManagementObjectSearcher MySearcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
            foreach (ManagementObject MyObject in MySearcher.Get())
            {
                MyInfo += "\n" + String.Format("MaxClockSpeed : " + MyObject["MaxClockSpeed"].ToString());
                MyInfo += "\n=========================================================";
            }
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

        }

        private void button10_Click(object sender, EventArgs e)
        {
            //获取计算机CPU的当前时钟频率
            String MyInfo = "计算机CPU的当前时钟频率是：";
            ManagementObjectSearcher MySearcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
            foreach (ManagementObject MyObject in MySearcher.Get())
            {
                MyInfo += "\n" + String.Format("CurrentClockSpeed : " + MyObject["CurrentClockSpeed"].ToString());
                MyInfo += "\n=========================================================";
            }
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

        }

        private void button11_Click(object sender, EventArgs e)
        {
            //获取计算机的CPU地址宽度
            String MyInfo = "当前计算机的CPU地址宽度是：";
            ManagementObjectSearcher MySearcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
            foreach (ManagementObject MyObject in MySearcher.Get())
            {
                MyInfo += "\n" + String.Format("AddressWidth: " + MyObject["AddressWidth"].ToString());
                MyInfo += "\n=========================================================";
            }
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

        }

        private void button14_Click(object sender, EventArgs e)
        {
            //获取计算机的CPU数据宽度
            String MyInfo = "当前计算机的CPU数据宽度是：";
            ManagementObjectSearcher MySearcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
            foreach (ManagementObject MyObject in MySearcher.Get())
            {
                MyInfo += "\n" + String.Format("DataWidth : " + MyObject["DataWidth"].ToString());
                MyInfo += "\n=========================================================";
            }
            MessageBox.Show(MyInfo, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

        }
    }
}    

Form1.Designer.cs

namespace WindowsApplication1
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.button3 = new System.Windows.Forms.Button();
            this.button4 = new System.Windows.Forms.Button();
            this.button5 = new System.Windows.Forms.Button();
            this.button6 = new System.Windows.Forms.Button();
            this.button7 = new System.Windows.Forms.Button();
            this.button8 = new System.Windows.Forms.Button();
            this.button9 = new System.Windows.Forms.Button();
            this.button10 = new System.Windows.Forms.Button();
            this.button11 = new System.Windows.Forms.Button();
            this.button14 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            //
            // button1
            //
            this.button1.Location = new System.Drawing.Point(12, 12);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(182, 23);
            this.button1.TabIndex = 5;
            this.button1.Text = "获取CPU编号";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            //
            // button2
            //
            this.button2.Location = new System.Drawing.Point(12, 41);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(186, 23);
            this.button2.TabIndex = 17;
            this.button2.Text = "获取计算机CPU的当前电压";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            //
            // button3
            //
            this.button3.Location = new System.Drawing.Point(12, 70);
            this.button3.Name = "button3";
            this.button3.Size = new System.Drawing.Size(186, 23);
            this.button3.TabIndex = 18;
            this.button3.Text = "获取计算机CPU的外部频率";
            this.button3.UseVisualStyleBackColor = true;
            this.button3.Click += new System.EventHandler(this.button3_Click);
            //
            // button4
            //
            this.button4.Location = new System.Drawing.Point(12, 99);
            this.button4.Name = "button4";
            this.button4.Size = new System.Drawing.Size(186, 23);
            this.button4.TabIndex = 19;
            this.button4.Text = "获取计算机CPU的二级缓存";
            this.button4.UseVisualStyleBackColor = true;
            this.button4.Click += new System.EventHandler(this.button4_Click);
            //
            // button5
            //
            this.button5.Location = new System.Drawing.Point(12, 128);
            this.button5.Name = "button5";
            this.button5.Size = new System.Drawing.Size(186, 23);
            this.button5.TabIndex = 21;
            this.button5.Text = "获取计算机CPU的制造商名称";
            this.button5.UseVisualStyleBackColor = true;
            this.button5.Click += new System.EventHandler(this.button5_Click);
            //
            // button6
            //
            this.button6.Location = new System.Drawing.Point(204, 157);
            this.button6.Name = "button6";
            this.button6.Size = new System.Drawing.Size(206, 23);
            this.button6.TabIndex = 22;
            this.button6.Text = "获取计算机CPU的产品名称";
            this.button6.UseVisualStyleBackColor = true;
            this.button6.Click += new System.EventHandler(this.button6_Click);
            //
            // button7
            //
            this.button7.Location = new System.Drawing.Point(12, 158);
            this.button7.Name = "button7";
            this.button7.Size = new System.Drawing.Size(186, 23);
            this.button7.TabIndex = 23;
            this.button7.Text = "获取计算机CPU的版本信息";
            this.button7.UseVisualStyleBackColor = true;
            this.button7.Click += new System.EventHandler(this.button7_Click);
            //
            // button8
            //
            this.button8.Location = new System.Drawing.Point(204, 70);
            this.button8.Name = "button8";
            this.button8.Size = new System.Drawing.Size(204, 23);
            this.button8.TabIndex = 24;
            this.button8.Text = "获取计算机CPU的当前使用百分比";
            this.button8.UseVisualStyleBackColor = true;
            this.button8.Click += new System.EventHandler(this.button8_Click);
            //
            // button9
            //
            this.button9.Location = new System.Drawing.Point(204, 41);
            this.button9.Name = "button9";
            this.button9.Size = new System.Drawing.Size(204, 23);
            this.button9.TabIndex = 25;
            this.button9.Text = "获取计算机CPU的最大时钟频率";
            this.button9.UseVisualStyleBackColor = true;
            this.button9.Click += new System.EventHandler(this.button9_Click);
            //
            // button10
            //
            this.button10.Location = new System.Drawing.Point(202, 12);
            this.button10.Name = "button10";
            this.button10.Size = new System.Drawing.Size(204, 23);
            this.button10.TabIndex = 26;
            this.button10.Text = "获取计算机CPU的当前时钟频率";
            this.button10.UseVisualStyleBackColor = true;
            this.button10.Click += new System.EventHandler(this.button10_Click);
            //
            // button11
            //
            this.button11.Location = new System.Drawing.Point(204, 99);
            this.button11.Name = "button11";
            this.button11.Size = new System.Drawing.Size(204, 23);
            this.button11.TabIndex = 27;
            this.button11.Text = "获取计算机的CPU地址宽度";
            this.button11.UseVisualStyleBackColor = true;
            this.button11.Click += new System.EventHandler(this.button11_Click);
            //
            // button14
            //
            this.button14.Location = new System.Drawing.Point(204, 128);
            this.button14.Name = "button14";
            this.button14.Size = new System.Drawing.Size(204, 23);
            this.button14.TabIndex = 28;
            this.button14.Text = "获取计算机的CPU数据宽度";
            this.button14.UseVisualStyleBackColor = true;
            this.button14.Click += new System.EventHandler(this.button14_Click);
            //
            // label1
            //
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(15, 193);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(341, 12);
            this.label1.TabIndex = 29;
            this.label1.Text = "作者：清清月儿 http://blog.csdn.net/21aspnet/  2007.3.23";
            //
            // Form1
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(422, 214);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.button14);
            this.Controls.Add(this.button11);
            this.Controls.Add(this.button10);
            this.Controls.Add(this.button9);
            this.Controls.Add(this.button8);
            this.Controls.Add(this.button7);
            this.Controls.Add(this.button6);
            this.Controls.Add(this.button5);
            this.Controls.Add(this.button4);
            this.Controls.Add(this.button3);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Button button3;
        private System.Windows.Forms.Button button4;
        private System.Windows.Forms.Button button5;
        private System.Windows.Forms.Button button6;
        private System.Windows.Forms.Button button7;
        private System.Windows.Forms.Button button8;
        private System.Windows.Forms.Button button9;
        private System.Windows.Forms.Button button10;
        private System.Windows.Forms.Button button11;
        private System.Windows.Forms.Button button14;
        private System.Windows.Forms.Label label1;
    }
}