form1.vb

来自「Visual Basic .NET程序设计教程源代码」· VB 代码 · 共 88 行

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

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

    End Sub

    '窗体重写 dispose 以清理组件列表。
    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 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents Label1 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Label1 = New System.Windows.Forms.Label
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(64, 24)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(168, 23)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "Label1"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.Add(Me.Label1)
        Me.KeyPreview = True
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Me.Text = "输入口令"
        Label1.Text = ""
        Label1.BorderStyle = BorderStyle.Fixed3D
    End Sub

    Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles MyBase.KeyPress
        Static pword As String
        Static counter As Short
        Static number As Short
        number += 1
        If number = 12 Then End
        counter = counter + 1
        pword = pword + e.KeyChar
        Label1.Text += "*"
        If LCase(pword) = "abcd" Then
            Label1.Text = ""
            pword = 0
            MsgBox("口令正确，继续...", , "")
            counter = 0
            MsgBox("Continue......", , "")
        ElseIf counter = 4 Then
            counter = 0
            pword = ""
            Label1.Text = ""
            MsgBox("口令不对，请重新输入", , "")
        End If
    End Sub
End Class