网址备忘录（VB，文件操作）代码

主窗体：

Public Sub lsvload() '初始化listview控件的列表头
    lsv.ColumnHeaders.Add , , , 0
    lsv.ColumnHeaders.Add , , "网站名称", 1500
    lsv.ColumnHeaders.Add , , "网站地址(双击记录可打开网站)", 4000
    lsv.ColumnHeaders.Add , , "网站类型", 1500
    lsv.ColumnHeaders.Add , , "登陆名", 1300
    lsv.ColumnHeaders.Add , , "登陆密码", 1300
End Sub

Public Sub output() '读取文件中的信息,并将它们显示在listview上
On Error Resume Next

    Dim str As String
    Dim lsv1 As ListItem
    Dim i As Integer
    Open App.Path & "/data.txt" For Input As #1
    While Not EOF(1)
        For i = 1 To 5 '一次读5行
            Line Input #1, str
                If i = 1 Then '这表示是该记录的第一个元素
                    Set lsv1 = lsv.ListItems.Add
                    lsv1.SubItems(i) = str
                Else
                    lsv1.SubItems(i) = str
                End If
        Next
    Wend
    Close #1
End Sub

Private Sub cmdadd_Click()
    frmadd.Show
End Sub

Private Sub cmddelete_Click()
If MsgBox("是否真的要删除以下网址：" & vbCrLf & lsv.SelectedItem.SubItems(2), vbYesNo, "确认删除") = vbYes Then
        lsv.ListItems.Remove (lsv.SelectedItem.Index)
        Call inputn
End If
End Sub

Private Sub cmdmodify_Click()
If lsv.ListItems.Count = 0 Then
    Exit Sub
End If

    frmadd.Show    '把列表中的数据项放到修改窗口，以便修改
    frmadd.Caption = "修改所选"
    frmadd.Text2.Enabled = False
    frmadd.Text2.BackColor = &HC0E0FF
    frmadd.Command1.Caption = "修改"
    frmadd.Text2.Text = lsv.SelectedItem.SubItems(2)
    frmadd.Text1.Text = lsv.SelectedItem.SubItems(1)
    frmadd.Text3.Text = lsv.SelectedItem.SubItems(3)
    frmadd.Text4.Text = lsv.SelectedItem.SubItems(4)
    frmadd.Text5.Text = lsv.SelectedItem.SubItems(5)
End Sub

Private Sub Command1_Click()
On Error GoTo quxiao
    CommonDialog1.Flags = &H2 '提示是否覆盖
    CommonDialog1.ShowSave
        FileCopy App.Path & "/data.txt", CommonDialog1.FileName
    Exit Sub
quxiao:   '用户选择“取消”后产生错误，捕获此错误可以避免取消后生成垃圾文件
    Exit Sub
End Sub

Private Sub Form_Load()
If App.PrevInstance = True Then '检查是否已经打开程序
    Unload frmmain
    Exit Sub
End If
On Error Resume Next
    Call jiancha
    Call lsvload
    Call output
    lsv.SelectedItem.Selected = False
End Sub

Private Sub Form_Unload(Cancel As Integer)
    Unload frmadd
End Sub

Private Sub lsv_DblClick()
Dim str As String
Dim xx
str = lsv.SelectedItem.SubItems(2)
    xx = Shell("C:/Program Files/Internet Explorer/IEXPLORE.EXE " & str, 3)
End Sub

frmadd窗体：

Dim ctl As Control  '控制输入必要信息
For Each ctl In Controls
    If TypeOf ctl Is TextBox Then
        If Text1.Text = "" Then
            Text1.SetFocus
            Exit Sub
        End If
        If Text2.Text = "" Then
            Text2.SetFocus
            Exit Sub
        End If
        If Text3.Text = "" Then
            Text3.SetFocus
            Exit Sub
        End If
    End If
Next ctl

 

If Command1.Caption = "增加" Then
    Dim lsv1 As ListItem
    Set lsv1 = frmmain.lsv.ListItems.Add()
    lsv1.SubItems(1) = Text1
    lsv1.SubItems(2) = Text2
    lsv1.SubItems(3) = Text3
    lsv1.SubItems(4) = Text4
    lsv1.SubItems(5) = Text5
    MsgBox "成功增加", vbInformation, "恭喜"
Else
    frmmain.lsv.SelectedItem.SubItems(1) = Text1
    frmmain.lsv.SelectedItem.SubItems(2) = Text2
    frmmain.lsv.SelectedItem.SubItems(3) = Text3
    frmmain.lsv.SelectedItem.SubItems(4) = Text4
    frmmain.lsv.SelectedItem.SubItems(5) = Text5
End If
    Unload Me
    Call inputn
   
End Sub

Private Sub Command2_Click()
    Unload Me
End Sub

Private Sub Form_Load()

End Sub

模块代码：

Public Sub inputn()
On Error Resume Next
    Dim i As Integer
    Dim j As Integer
        For i = 0 To frmmain.lsv.ListItems.Count
            For j = 1 To 5
                Open App.Path & "/data.txt" For Output As #2
                    Print #2, frmmain.lsv.ListItems.Item(i).SubItems(j)
            Next
        Next
    Close #2
End Sub

-------------------------

Public Sub jiancha() '运行程序时检查.是否已经打开?是否有数据文件
Dim fso

On Error GoTo chuli '检查是否有data.bat这个文件,要是没有则创建.适合第一次运行此程序.
    Open App.Path & "/data.txt" For Input As #1
    Close #1
    Exit Sub
chuli:
    Set fso = CreateObject("scripting.filesystemobject")
    fso.CreateTextFile (App.Path & "/data.txt") '创建这个文件
End Sub