求帮助 不知道怎么改

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.Diagnostics;
namespace _6._2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            listBox1.Items.Clear();
            Process[] allProcess = Process.GetProcesses();
            foreach(Process  myProcess in allProcess ){
            listBox1.Items.Add("进程: " + myProcess.ProcessName + "的ID为：" + Convert.ToString(myProcess.Id ));
            
            }
            
        }

        private void button2_Click(object sender, EventArgs e)
        {
            Process myprocess = new Process();
            ProcessStartInfo startInfo = new ProcessStartInfo(Application.StartupPath+"\\NOTEPAD.exe");
            startInfo.WindowStyle = ProcessWindowStyle.Normal;
            startInfo.WorkingDirectory = Application.StartupPath;
            myprocess.StartInfo = startInfo;
            myprocess.StartInfo.UseShellExecute = false;
            myprocess.Start();
            Process current = Process.GetCurrentProcess();
            current.CloseMainWindow();


        }
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (MessageBox.Show("真的要退出系统吗？", "进程测试程序",
                MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
                e.Cancle = false;
            else
                e.Cancle = true;
        
        }
    }
}