为什么我用c#编的记事本程序一运行就导致机子重启呀？急~~~~~~~~~~~~~~~~~~·

Question

今天我用c#编的记事本的程序一运行机子就死机了~~~~~~有时导致机子重启~~~~~~主要有如下的症状：
1.在richtextbox1中输入a并不断的回车直到出现滚动条。然后想用鼠标点击滚动条查看一下文本，但是滚动了不到十分之一滚动条就卡住不动了。再点击它机子就会发出吱吱的警报声~~~~~~~~~~~谢谢大家了~~~~~~~~~~~~~~~~

Answer 1

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace 透明笔记本
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void toolStripButton1_Click(object sender, EventArgs e)
        {
            openFileDialog1.ShowDialog();        }        private void toolStripButton2_Click(object sender, EventArgs e)
        {
            saveFileDialog1.ShowDialog();        }        private void toolStripButton3_Click(object sender, EventArgs e)
        {
            saveFileDialog2.ShowDialog();
        }       
        private void 帮助主题ToolStripMenuItem_Click(object sender, EventArgs e)
        {   
            Form2 f2 = new Form2();
            f2.Visible = false;
           while (帮助主题ToolStripMenuItem.Checked = !帮助主题ToolStripMenuItem.Checked)
            {                f2.Visible =true;
            }
        }        private void 打开ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            openFileDialog1.ShowDialog();
        }        private void 保存ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            saveFileDialog1.ShowDialog();
        }        private void 另存为ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            saveFileDialog2.ShowDialog();
        }        private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }        private void toolStripButton4_Click(object sender, EventArgs e)
        {
            string text = richTextBox1.SelectedText;
            Clipboard.SetDataObject(text);        }        private void 复制ToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            string text = richTextBox1.SelectedText;
            Clipboard.SetDataObject(text);
        }        private void 粘贴ToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            IDataObject data = Clipboard.GetDataObject();
            if (data.GetDataPresent(DataFormats.Text))
            {
                richTextBox1.SelectedText = data.GetData(DataFormats.Text).ToString();
            }
            else
            {
                MessageBox.Show("数据不是文本格式");
            
            }
        }        private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectedText = " ";
        }        private void 时间日期ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectedText = DateTime.Now.ToLongDateString();
        }        private void 状态栏ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            statusStrip1.Visible = false ;
           
          if ( 状态栏ToolStripMenuItem.Checked = !状态栏ToolStripMenuItem.Checked)
          {  statusStrip1.Visible = true ; }
           
           
        }        private void 复制ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            string text = richTextBox1.SelectedText;
            Clipboard.SetDataObject(text);
        }        private void 删除ToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectedText = " ";
        }        private void 粘贴ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            IDataObject data = Clipboard.GetDataObject();
            if (data.GetDataPresent(DataFormats.Text))
            {
                richTextBox1.SelectedText = data.GetData(DataFormats.Text).ToString();
            }
            else
            {
                MessageBox.Show("数据不是文本格式");            }        }        private void 字体ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            fontDialog1.ShowDialog();
            richTextBox1.Font = fontDialog1.Font;
            richTextBox1.ForeColor = fontDialog1.Color;        }        private void toolStripButton5_Click_1(object sender, EventArgs e)
        {
            IDataObject data = Clipboard.GetDataObject();
            if (data.GetDataPresent(DataFormats.Text))
            {
                richTextBox1.SelectedText = data.GetData(DataFormats.Text).ToString();
            }
            else
            {
                MessageBox.Show("数据不是文本格式");            }
        }        private void toolStripButton6_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectedText = " ";
        }        private void toolStripButton7_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }
    }
}第二个FORM2
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace 透明笔记本
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }
       private void Form2_Load(object sender, EventArgs e)
        {
        }
       
       private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
               {
                   this.Visible = false;
                }
        
       
    }
}