form1.vb

来自「Visual Basic .NET程序设计教程源代码」· VB 代码 · 共 158 行

Imports System.Math
Public Class Form1
    Inherits System.Windows.Forms.Form
    'TranDec( )函数是将十进制整数（iDec）转换成任意进制
    Function TranDec$(ByVal m, ByVal r)
        Dim imr(60) As Integer     '存放不断除r后得到的余数
        Dim strBase As String : Dim StrDtoR$ : Dim iB, i As Integer
        strBase = "0123456789ABCDEF"
        i = 0
        Do While m <> 0         '不断除某进制取余直到商为0
            imr(i) = m Mod r
            m = m \ r
            i = i + 1
        Loop
        StrDtoR = ""
        i = i + 1
        Do While i >= 0         '形成某进制的字符串
            iB = imr(i)         '将余数转换成对应的字符
            StrDtoR = StrDtoR + Mid$(strBase, iB + 1, 1)
            i = i - 1
        Loop
        TranDec = StrDtoR
    End Function

#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

    '窗体重写处置以清理组件列表。
    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 Button1 As System.Windows.Forms.Button
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox3 As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.Label2 = New System.Windows.Forms.Label()
        Me.Label3 = New System.Windows.Forms.Label()
        Me.TextBox1 = New System.Windows.Forms.TextBox()
        Me.TextBox2 = New System.Windows.Forms.TextBox()
        Me.TextBox3 = New System.Windows.Forms.TextBox()
        Me.SuspendLayout()
        '
        'Button1
        '
        Me.Button1.Font = New System.Drawing.Font("黑体", 10.5!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Button1.Location = New System.Drawing.Point(48, 144)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "转换"
        '
        'Label1
        '
        Me.Label1.Font = New System.Drawing.Font("宋体", 10.5!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Label1.Location = New System.Drawing.Point(16, 8)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(112, 23)
        Me.Label1.TabIndex = 1
        Me.Label1.Text = "输入十进制数："
        '
        'Label2
        '
        Me.Label2.Font = New System.Drawing.Font("宋体", 10.5!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Label2.Location = New System.Drawing.Point(16, 56)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(112, 23)
        Me.Label2.TabIndex = 2
        Me.Label2.Text = "输入R进制："
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(16, 104)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(120, 23)
        Me.Label3.TabIndex = 3
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(152, 8)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.TabIndex = 4
        Me.TextBox1.Text = ""
        '
        'TextBox2
        '
        Me.TextBox2.Location = New System.Drawing.Point(152, 48)
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.TabIndex = 5
        Me.TextBox2.Text = ""
        '
        'TextBox3
        '
        Me.TextBox3.Location = New System.Drawing.Point(152, 88)
        Me.TextBox3.Name = "TextBox3"
        Me.TextBox3.TabIndex = 6
        Me.TextBox3.Text = ""
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(7, 16)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.TextBox3, Me.TextBox2, Me.TextBox1, Me.Label3, Me.Label2, Me.Label1, Me.Button1})
        Me.Font = New System.Drawing.Font("宋体", 10.5!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

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

    End Sub

    Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim m0%, r0%, I%
        m0 = Val(TextBox1.Text)          '输入十进制正整数
        r0 = Val(TextBox2.Text)          '输入r进制
        If r0 < 2 Or r0 > 16 Then
            I = MsgBox("输入的r进制数超出范围", vbRetryCancel)
            If I = vbRetry Then
                TextBox2.Text = ""
            Else
                End
            End If
        End If
        Label3.Text = "转换成" & r0 & "进制数"                   '转换标签随输入的进制改革
        TextBox3.Text = TranDec(m0, r0)                          '调用转换函数，显示转换结果
    End Sub
End Class