第三节 6练习4

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

namespace _6练习4
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //AppendText追加数据到text文件框中去
            textBox3.AppendText(DateTime.Now.ToString() + "\n");
        }
    }
}