解决了，把msgbox 改为了 msgbox1 就可以了，但是我弹出的窗口，全部在主程序的后面，能不能显示到前面来，并且像作者的例子一样，并排排列，而不是重叠在一起？
Public Class MsgBox
Private Sub MessageBox_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Me.Timer1.Interval = 30000 '设置执行间隔(30秒)
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
Me.Close() '计时器自动关闭提示窗口
End Sub
End Class
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Class MsgBox
Inherits System.Windows.Forms.Form
'Form 重写 Dispose,以清理组件列表.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overrides Sub Dispose(ByVal disposing As Boolean)
Try
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
Finally
MyBase.Dispose(disposing)
End Try
End Sub
'Windows 窗体设计器所必需的
Private components As System.ComponentModel.IContainer
'注意: 以下过程是 Windows 窗体设计器所必需的
'可以使用 Windows 窗体设计器修改它.
'不要使用代码编辑器修改它.
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Me.components = New System.ComponentModel.Container()
Me.TextBox1 = New System.Windows.Forms.TextBox()
Me.Timer1 = New System.Windows.Forms.Timer(Me.components)
Me.SuspendLayout()
'
'TextBox1
'
Me.TextBox1.Anchor = CType((((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
Or System.Windows.Forms.AnchorStyles.Left) _
Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
Me.TextBox1.Location = New System.Drawing.Point(13, 13)
Me.TextBox1.Multiline = True
Me.TextBox1.Name = "TextBox1"
Me.TextBox1.ReadOnly = True
Me.TextBox1.Size = New System.Drawing.Size(259, 138)
Me.TextBox1.TabIndex = 1
Me.TextBox1.TabStop = False
'
'Timer1
'
'
'MsgBox
'
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 12.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(284, 161)
Me.Controls.Add(Me.TextBox1)
Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow
Me.Name = "MsgBox"
Me.ShowIcon = False
Me.Text = "提示"
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
Friend WithEvents Timer1 As System.Windows.Forms.Timer
End Class