form1.vb

来自「Visual.Basic.NET实用编程百例-47.6M.zip」· VB 代码 · 共 183 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 TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.TextBox2 = New System.Windows.Forms.TextBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.SuspendLayout()
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(8, 32)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.TabIndex = 0
        Me.TextBox1.Text = ""
        '
        'TextBox2
        '
        Me.TextBox2.Location = New System.Drawing.Point(216, 32)
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.TabIndex = 1
        Me.TextBox2.Text = ""
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(120, 32)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 4
        Me.Button1.Text = "转换"
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(8, 8)
        Me.Label1.Name = "Label1"
        Me.Label1.TabIndex = 6
        Me.Label1.Text = "十进制"
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(216, 8)
        Me.Label2.Name = "Label2"
        Me.Label2.TabIndex = 7
        Me.Label2.Text = "十六进制"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(328, 85)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.TextBox2)
        Me.Controls.Add(Me.TextBox1)
        Me.Name = "Form1"
        Me.Text = "进制转换"
        Me.ResumeLayout(False)

    End Sub

#End Region
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If IsNumeric(TextBox1.Text) Then
            TextBox2.Text = Hex(CDbl(TextBox1.Text))
        Else
            MsgBox("Not a Number.", vbCritical)
        End If
    End Sub

    Function Hex2Dec(ByVal InputData As String) As Double
        Dim I As Integer
        Dim DecOut As Double
        Dim Lenhex As Integer
        Dim HexStep As Double
        DecOut = 0
        InputData = UCase(InputData)
        Lenhex = Len(InputData)
        For I = 1 To Lenhex
            If IsNumeric(Mid(InputData, I, 1)) Then
                GoTo NumOk
            ElseIf Mid(InputData, I, 1) = "A" Then
                GoTo NumOk
            ElseIf Mid(InputData, I, 1) = "B" Then
                GoTo NumOk
            ElseIf Mid(InputData, I, 1) = "C" Then
                GoTo NumOk
            ElseIf Mid(InputData, I, 1) = "D" Then
                GoTo NumOk
            ElseIf Mid(InputData, I, 1) = "E" Then
                GoTo NumOk
            ElseIf Mid(InputData, I, 1) = "F" Then
                GoTo NumOk
            Else
                MsgBox("Number given is not in Hex format", vbCritical)
                Exit Function
            End If
NumOk:
        Next I
        HexStep = 0
        For I = Lenhex To 1 Step -1
            HexStep = HexStep * 16
            If HexStep = 0 Then
                HexStep = 1
            End If
            If Mid(InputData, I, 1) = "0" Then
                DecOut = DecOut + (0 * HexStep)
            ElseIf Mid(InputData, I, 1) = "1" Then
                DecOut = DecOut + (1 * HexStep)
            ElseIf Mid(InputData, I, 1) = "2" Then
                DecOut = DecOut + (2 * HexStep)
            ElseIf Mid(InputData, I, 1) = "3" Then
                DecOut = DecOut + (3 * HexStep)
            ElseIf Mid(InputData, I, 1) = "4" Then
                DecOut = DecOut + (4 * HexStep)
            ElseIf Mid(InputData, I, 1) = "5" Then
                DecOut = DecOut + (5 * HexStep)
            ElseIf Mid(InputData, I, 1) = "6" Then
                DecOut = DecOut + (6 * HexStep)
            ElseIf Mid(InputData, I, 1) = "7" Then
                DecOut = DecOut + (7 * HexStep)
            ElseIf Mid(InputData, I, 1) = "8" Then
                DecOut = DecOut + (8 * HexStep)
            ElseIf Mid(InputData, I, 1) = "9" Then
                DecOut = DecOut + (9 * HexStep)
            ElseIf Mid(InputData, I, 1) = "A" Then
                DecOut = DecOut + (10 * HexStep)
            ElseIf Mid(InputData, I, 1) = "B" Then
                DecOut = DecOut + (11 * HexStep)
            ElseIf Mid(InputData, I, 1) = "C" Then
                DecOut = DecOut + (12 * HexStep)
            ElseIf Mid(InputData, I, 1) = "D" Then
                DecOut = DecOut + (13 * HexStep)
            ElseIf Mid(InputData, I, 1) = "E" Then
                DecOut = DecOut + (14 * HexStep)
            ElseIf Mid(InputData, I, 1) = "F" Then
                DecOut = DecOut + (15 * HexStep)
            Else
                MsgBox("Something is Screwed up, Wahhhhhhhhhhh", vbCritical)
            End If
        Next I
        Hex2Dec = DecOut
eds:
    End Function

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
End Class