Public Class frmTimer
    Inherits System.Windows.Forms.Form

#Region " Windows 窗體設計器生成的代碼 "

    Public Sub New()
        MyBase.New()

        '該調用是 Windows 窗體設計器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 調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 窗體設計器所必需的
    Private components As System.ComponentModel.IContainer

    '注意: 以下過程是 Windows 窗體設計器所必需的
    '可以使用 Windows 窗體設計器修改此過程。
    '不要使用代碼編輯器修改它。
    Friend WithEvents Timer1 As System.Windows.Forms.Timer
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(frmTimer))
        Me.Timer1 = New System.Windows.Forms.Timer(Me.components)
        '
        'Timer1
        '
        '
        'frmTimer
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.BackgroundImage = CType(resources.GetObject("$this.BackgroundImage"), System.Drawing.Image)
        Me.ClientSize = New System.Drawing.Size(352, 254)
        Me.ControlBox = False
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "frmTimer"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen

    End Sub

#End Region
    Dim int As Integer = 0
    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        Dim frm As New frmUser
        If int = 0 Then
            Me.Visible = True
            frm.Visible = False
            int = 1
        ElseIf int = 1 Then
            Me.Visible = False
            frm.Visible = True
            int = 2
        End If
    End Sub

    Private Sub frmUser_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        'Dim frm As New frmUser
        'frm.Show()
        Me.Timer1.Enabled = True
        Me.Timer1.Interval = 500 '時間間隔自定義
    End Sub

End Class