Public Class Form1
    Inherits System.Windows.Forms.Form
    Sub DelayLoop(ByVal DelayTime As Integer)
        Dim LoopFinish As Integer
        Const SecondsInDay = 24& * 60& * 60&
        LoopFinish = Second(Now) + DelayTime
        If LoopFinish > SecondsInDay Then
            LoopFinish = LoopFinish - SecondsInDay
            Do While Second(Now) > LoopFinish
            Loop
        End If
        Do While Second(Now) < LoopFinish
        Loop
    End Sub

#Region " Windows 窗體設計器生成的代碼 "

    Public Sub New()
        MyBase.New()

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

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

    End Sub

    '窗體重寫處置以清理組件列表。
    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。
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Name = "Form1"
        Me.Text = "Form1"

    End Sub

#End Region

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Debug.WriteLine("現(xiàn)在輸出第一行")
        Debug.WriteLine("等待5秒鐘……")
        DelayLoop(5)
        Debug.WriteLine("")
        Debug.WriteLine("輸出第二行")
        Debug.WriteLine("等待10秒鐘……")
        Call DelayLoop(10)
        Debug.WriteLine("")
        Debug.WriteLine("輸出第三行")
    End Sub
End Class