Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows 窗體設(shè)計器生成的代碼 "

    Public Sub New()
        MyBase.New()

        '該調(diào)用是 Windows 窗體設(shè)計器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 調(diào)用之后添加任何初始化

    End Sub

    '窗體重寫 dispose 以清理組件列表。
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Windows 窗體設(shè)計器所必需的
    Private components As System.ComponentModel.IContainer

    '注意: 以下過程是 Windows 窗體設(shè)計器所必需的
    '可以使用 Windows 窗體設(shè)計器修改此過程。
    '不要使用代碼編輯器修改它。
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Name = "Form1"
        Me.Text = "查找文件"

    End Sub

#End Region

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim Areturn As String
        Dim Filename As String
        Dim Findnext As Boolean
        Findnext = True
        Do While Findnext
            Filename = InputBox("輸入要查找的文件名", "查找文件", "c:\document")
            If Filename <> "" Then
                Areturn = MsgBox("已經(jīng)找到文件" & Filename & ",打開嗎？", vbOKCancel + vbDefaultButton1 + vbQuestion, "查找文件")
            Else
                Areturn = MsgBox("未發(fā)現(xiàn)文件", vbAbortRetryIgnore + vbDefaultButton2 + vbCritical, "查找文件")
            End If
            Select Case Areturn
                Case vbOK
                    MsgBox("對不起！現(xiàn)在還不能打開文件" & Filename & "。要等到學習過文件操作后才可以使用", vbOKOnly + vbInformation + vbDefaultButton1, "打開文件")
                Case vbCancel
                    MsgBox("你選擇了取消！將不打開文件" & Filename, vbOKOnly + vbExclamation + vbDefaultButton1, "打開文件")
                Case vbAbort
                    MsgBox("你選擇了終止！將退出程序", vbOKOnly + vbDefaultButton1 + vbCritical, "打開文件")
                    Findnext = False
                Case vbRetry
                    Findnext = True
                Case vbIgnore
                    MsgBox("你選擇了忽略！但這個還不能打開文件，現(xiàn)在將退出應用程序", vbOKOnly + vbCritical + vbDefaultButton1, "打開文件")
                Case Else
                    Findnext = True
            End Select
        Loop
    End Sub
End Class