我用VB寫的記事本代碼（仿微軟的）

Public Class Form1

  
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        撤銷.Enabled = False
        剪切.Enabled = False
        複製.Enabled = False
        粘貼.Enabled = False
        刪除.Enabled = False
        查找.Enabled = False
        查找下一個.Enabled = False
        轉到.Enabled = False
        狀態欄.Enabled = False
    End Sub

    Private Sub Form1_Resize(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Resize
        TextBox1.Width = Me.Width - 10
        TextBox1.Height = Me.Height - 10
    End Sub

    Private Sub TextBox1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.Click
        TextBox1.Focus()
    End Sub

    Private Sub TextBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles TextBox1.MouseDown
        撤銷.Enabled = True
        剪切.Enabled = True
        複製.Enabled = True
        粘貼.Enabled = True
        刪除.Enabled = True
        查找.Enabled = True
        查找下一個.Enabled = True
    End Sub

    Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
        撤銷.Enabled = True
        查找.Enabled = True
        查找下一個.Enabled = True
    End Sub

    Private Sub 撤銷_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 撤銷.Click
        TextBox1.Text = ""
    End Sub

    Private Sub 自動換行_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 自動換行.Click
        自動換行.Checked = True

    End Sub
  
   
    Private Sub 新建_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 新建.Click
        TextBox1.Text = ""
    End Sub

    Private Sub 打開_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 打開.Click
        OpenFileDialog1.ShowDialog()
    End Sub

    Private Sub 另存爲_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 另存爲.Click
        SaveFileDialog1.ShowDialog()
    End Sub

    Private Sub 保存_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 保存.Click
        SaveFileDialog1.ShowDialog()
    End Sub

    Private Sub 退出_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 退出.Click
        End
    End Sub

    Private Sub 複製_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 複製.Click
        TextBox1.Copy()
    End Sub

    Private Sub 粘貼_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 粘貼.Click
        TextBox1.Paste()
    End Sub

    Private Sub 刪除_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 刪除.Click
        TextBox1.SelectAll()

        TextBox1.text=""
    End Sub

    Private Sub 時間日期_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 時間日期.Click
        TextBox1.Text = Format(Now, "yyy-MM-dd hh:mm:ss")
    End Sub

    Private Sub 字體_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 字體.Click
        FontDialog1.ShowDialog()
    End Sub

  
   Private Sub 剪切_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 剪切.Click
        TextBox1.Cut()
    End Sub

    Private Sub 全選_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 全選.Click
        TextBox1.SelectAll()
    End Sub
End Class