form1.vb

来自「是一个工资的管理系统 利用的是VB.NET和sql2000来完成的」· VB 代码 · 共 194 行

Imports System.Data
Imports System.Data.SqlClient

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 Button1 As System.Windows.Forms.Button
    Friend WithEvents SqlConnection1 As System.Data.SqlClient.SqlConnection
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents TextBox3 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox4 As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.SqlConnection1 = New System.Data.SqlClient.SqlConnection
        Me.TextBox2 = New System.Windows.Forms.TextBox
        Me.Label3 = New System.Windows.Forms.Label
        Me.TextBox3 = New System.Windows.Forms.TextBox
        Me.TextBox4 = New System.Windows.Forms.TextBox
        Me.SuspendLayout()
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(80, 40)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.TabIndex = 0
        Me.TextBox1.Text = ""
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(88, 128)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "Button1"
        '
        'SqlConnection1
        '
        Me.SqlConnection1.ConnectionString = "workstation id=LYQAWM;packet size=4096;integrated security=SSPI;initial catalog=工" & _
        "资管理系统04200719;persist security info=False"
        '
        'TextBox2
        '
        Me.TextBox2.Location = New System.Drawing.Point(80, 80)
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.TabIndex = 2
        Me.TextBox2.Text = ""
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(40, 200)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(200, 23)
        Me.Label3.TabIndex = 3
        Me.Label3.Text = "Label1"
        '
        'TextBox3
        '
        Me.TextBox3.Location = New System.Drawing.Point(192, 112)
        Me.TextBox3.Name = "TextBox3"
        Me.TextBox3.TabIndex = 4
        Me.TextBox3.Text = "TextBox3"
        '
        'TextBox4
        '
        Me.TextBox4.Location = New System.Drawing.Point(192, 152)
        Me.TextBox4.Name = "TextBox4"
        Me.TextBox4.TabIndex = 5
        Me.TextBox4.Text = "TextBox4"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.Add(Me.TextBox4)
        Me.Controls.Add(Me.TextBox3)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.TextBox2)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.TextBox1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub SqlConnection1_InfoMessage(ByVal sender As System.Object, ByVal e As System.Data.SqlClient.SqlInfoMessageEventArgs) Handles SqlConnection1.InfoMessage
        
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        'Dim s(10) As String
        'Dim con As New SqlConnection("workstation id=LYQAWM;packet size=4096;integrated security=SSPI;initial catalog=工资管理系统04200719;persist security info=False")
        'Dim cmd As New SqlCommand("select names from a", con)
        'con.Open()
        'Dim str As String = cmd.ExecuteScalar()
        'Dim red As SqlDataReader
        'red = cmd.ExecuteReader
        'Dim i As Integer = 0
        'While red.Read
        '    s(i) = red.GetString(0)
        'End While
        'TextBox1.Text = str
        'Dim P As Double = 6000000000
        'Dim r As Single = 0.012
        'Dim n As Integer = 0
        'Do
        '    P = P * (1 + r)
        '    n = n + 1

        'Loop Until n > 3
        'MsgBox(CStr(n) & "年后" & CStr(Int(P + 0.5)))



        'Dim s1, s2, s3 As String
        'Dim x1, x2, x3, x4 As String
        's1 = "microsoft Visual bascal microsoft visual bascal"
        's2 = "visual"
        's3 = "Visual"
        'x1 = InStr(s1, s2)
        'x2 = InStr(7, s1, s3)
        'x3 = InStr(s1, s2, CompareMethod.Binary)
        'x4 = InStr(s1, s3, CompareMethod.Binary)
        'TextBox1.Text = x1
        'TextBox2.Text = x2
        'TextBox3.Text = x3
        'TextBox4.Text = x4

        Dim Num1 As Long '第一个数字
        Dim Num2 As Long '第二个数字


        Dim i, j, sum As Integer
        Num1 = TextBox1.Text
        Num2 = TextBox2.Text '把输入的两个数加进来
        For i = Num1 To Num2
            For j = 2 To i - 1
                If Int(i / j) = i / j Then Exit For
            Next
            If j = i Then
                sum = sum + i

                TextBox3.Text = TextBox3.Text & CStr(j) & IIf(i = Num2, "", ", ")
            End If
        Next
        MsgBox("两个数之间的素数个数为" & sum & "个")

    End Sub


    'Dim myc =     new(myMath(TextBox1.Text, TextBox2.Text))
    'myc.reset()
    'myc.is_prime()
    'Label3.Text = "有 " + myc.isPrime.ToString + " 个素数,和为 " + myc.cPrime.ToString


    Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged


    End Sub
End Class