Public Class Form1
    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 btnShow As System.Windows.Forms.Button
    Friend WithEvents btnClear As System.Windows.Forms.Button
    Friend WithEvents textB As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.btnShow = New System.Windows.Forms.Button
        Me.btnClear = New System.Windows.Forms.Button
        Me.textB = New System.Windows.Forms.TextBox
        Me.SuspendLayout()
        '
        'btnShow
        '
        Me.btnShow.Location = New System.Drawing.Point(48, 136)
        Me.btnShow.Name = "btnShow"
        Me.btnShow.TabIndex = 0
        Me.btnShow.Text = "顯示"
        '
        'btnClear
        '
        Me.btnClear.Location = New System.Drawing.Point(168, 136)
        Me.btnClear.Name = "btnClear"
        Me.btnClear.TabIndex = 1
        Me.btnClear.Text = "清除"
        '
        'textB
        '
        Me.textB.Location = New System.Drawing.Point(72, 48)
        Me.textB.Multiline = True
        Me.textB.Name = "textB"
        Me.textB.Size = New System.Drawing.Size(160, 21)
        Me.textB.TabIndex = 2
        Me.textB.Text = ""
        Me.textB.TextAlign = System.Windows.Forms.HorizontalAlignment.Center
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.Add(Me.textB)
        Me.Controls.Add(Me.btnClear)
        Me.Controls.Add(Me.btnShow)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub btnshow_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnShow.Click
        textB.Text = "Hello,World"
        textB.BackColor = Color.Red
        btnShow.Text = "單擊我"
    End Sub

    Private Sub btnclear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClear.Click
        textB.Text = ""
    End Sub
End Class