Dim TextBoxChanged As BooleanPrivate Sub Form_Load() If Len(Dir("DATA.TXT")) Then ReadFile End SubPrivate Sub Form_Unload(Cancel As Integer) If TextBoxChanged Then Dim YorN As Long YorN = MsgBox("要保存吗?", vbYesNo Or vbQuestion) If YorN = vbYes Then SaveFile End If End SubSub ReadFile() Dim fn As Long, tmp As String fn = FreeFile: tmp = Space(FileLen("DATA.TXT")) Open "DATA.TXT" For Binary As #fn Get #fn, 1, tmp Close #fn Text1.Text = tmp TextBoxChanged = False End SubSub SaveFile() Dim fn As Long: fn = FreeFile If Len(Dir("DATA.TXT")) Then Kill "DATA.TXT" Open "DATA.TXT" For Binary As #fn Put #fn, , Text1.Text Close #fn End SubPrivate Sub Text1_Change() TextBoxChanged = True End Sub
Private Sub Form_Unload(Cancel As Integer) Dim i As Integer i = MsgBox("确实要关闭吗?", vbYesNo, "选择") If i = vbNo Then Cancel = 1 End Sub
Private Sub Form_Unload(Cancel As Integer) If MsgBox("是否关闭?", vbInformation + vbYesNo, "关闭") = vbNo Then Cancel = True End If End Sub
If Len(Dir("DATA.TXT")) Then ReadFile
End SubPrivate Sub Form_Unload(Cancel As Integer)
If TextBoxChanged Then
Dim YorN As Long
YorN = MsgBox("要保存吗?", vbYesNo Or vbQuestion)
If YorN = vbYes Then SaveFile
End If
End SubSub ReadFile()
Dim fn As Long, tmp As String
fn = FreeFile: tmp = Space(FileLen("DATA.TXT"))
Open "DATA.TXT" For Binary As #fn
Get #fn, 1, tmp
Close #fn
Text1.Text = tmp
TextBoxChanged = False
End SubSub SaveFile()
Dim fn As Long: fn = FreeFile
If Len(Dir("DATA.TXT")) Then Kill "DATA.TXT"
Open "DATA.TXT" For Binary As #fn
Put #fn, , Text1.Text
Close #fn
End SubPrivate Sub Text1_Change()
TextBoxChanged = True
End Sub
Dim i As Integer
i = MsgBox("确实要关闭吗?", vbYesNo, "选择")
If i = vbNo Then Cancel = 1
End Sub
If MsgBox("是否关闭?", vbInformation + vbYesNo, "关闭") = vbNo Then
Cancel = True
End If
End Sub