using System;
using System.Collections.Generic;
using
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data;

namespace xxxxxx
{
 public partial class Form1 : Form
    {
        private = null;
        public Form1()
        {
            //初始化窗体中的各个组件  
            InitializeComponent();
        }
        protected override void Dispose(bool disposing)
        {
            //清除程序中使用过的资源  
            if (disposing)
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }
        private void InitializeComponent()
        {
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.ClientSize = new System.Drawing.Size(292, 273);
            this.Name = "Form1";
            this.Text = "C＃处理键盘事件！";
            //为按键的按动定义一个事件处理过程"Form1_KeyUp"
            this.KeyUp += new KeyEventHandler(this.Form1_KeyUp);
        }
        static void Main()
        {
            Application.Run(new Form1());
        }
        //显示你所按动的按键名称
        private void Form1_KeyUp(object sender, KeyEventArgs e)
        {
            MessageBox.Show(e.KeyCode.ToString(), "您所按动的健为：");
        }
    }
}

protected override void Dispose(bool disposing)
        {
            //清除程序中使用过的资源  
            if (disposing)
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }
        private void InitializeComponent()
        {
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.ClientSize = new System.Drawing.Size(292, 273);
            this.Name = "Form1";
            this.Text = "C＃处理键盘事件！";
            //为按键的按动定义一个事件处理过程"Form1_KeyUp"
            this.KeyUp += new KeyEventHandler(this.Form1_KeyUp);
        }
        static void Main()
        {
            Application.Run(new Form1());
        }
        //显示你所按动的按键名称
        private void Form1_KeyUp(object sender, KeyEventArgs e)
        {
            MessageBox.Show(e.KeyCode.ToString(), "您所按动的健为：");
        }
把这一段写在Form1.designer.cs里面，不要写在Form1.cs就行啦