Form1.cs

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

namespace testwin
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            button2.BringToFront();
        }
        private void button2_MouseEnter(object sender, EventArgs e)
        {
            Random r = new Random();
            int x = r.Next(this.ClientSize.Width - this.button2.Width);
            int y = r.Next(this.ClientSize.Height - this.button2.Height);
            this.button2.Location = new Point(x, y);
        }
        // 下载于www.51aspx.com
        private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show("  测试结果：是吧是吧！承认自己是笨蛋了吧~ 哈哈！！！");
        }
        private void button2_Click(object sender, EventArgs e)
        {
            MessageBox.Show("  我艹！这你都能点到？肯花这么多功夫点我，果然有笨蛋天赋！！！");
        }

        private void Form1_FormClosed(object sender, FormClosedEventArgs e)
        {
            MessageBox.Show("  关闭了也改变不了你是笨蛋的事实！~\n\n  ^ _ ^");
        }
        protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
        {
            if (keyData == Keys.Tab || keyData == Keys.Right || keyData == Keys.Left || keyData == Keys.Up || keyData == Keys.Down) 
            {
                button2.Focus();
            }
            return false;
        }
    }
}