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vb.net案例源代码 vb的源代码

IT技术源代码

求vb.net的源代码，最好说明其解决问题 ， 越多越好，满意加50分 。下面这段代码vb.net案例源代码 ， 是vb.net案例源代码我用来计算每个月存500元进银行vb.net案例源代码，连续30年vb.net案例源代码，最后连本带利能有多少钱 。这里面涉及复利计算 。界面中右边vb.net案例源代码的文本框用来输出每一次计算的结果 。
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim nianxian As Integer '年限变量
Dim dingcun As Integer '定存变量
Dim fuli_big As Long '大复利
Dim fuli_small As Long '小复利
Dim i As Integer '循环变量
Dim DATAstring As String '数据字符串
nianxian = Val(年限_TextBox.Text)
dingcun = Val(定存_TextBox.Text)
DATAstring = ""
For i = 1 To nianxian
fuli_small = dingcun * (1 + 0.1875)
dingcun = fuli_small
fuli_big = fuli_big + fuli_small
DATAstring = DATAstring + "[" + Trim(Str(i)) + "]" + Str(fuli_big) + Chr(13) + Chr(10)
'DATAstring = DATAstring + "[" + Trim(Str(i)) + "]" + Str(fuli_small) + Chr(13) + Chr(10)
Next
'fuli_big = fuli_small
TextBox1.Text = DATAstring
结果_TextBox.Text = Str(fuli_big) + "元"
End Sub
如何用vb.net获得网页的源代码Dim url As String=" 网址"
Dim httpReq As System.Net.HttpWebRequest
Dim httpResp As System.Net.HttpWebResponse
Dim httpURL As New System.Uri(url)
httpReq = CType(WebRequest.Create(httpURL), HttpWebRequest)
httpReq.Method = "GET"
httpResp = CType(httpReq.GetResponse(), HttpWebResponse)
httpReq.KeepAlive = False ' 获取或设置一个值 ， 该值指示是否与
Internet资源建立持久连接 。
Dim reader As StreamReader = _
New StreamReader(httpResp.GetResponseStream,
System.Text.Encoding.GetEncoding(-0))
Dim respHTML As String = reader.ReadToEnd() 'respHTML就是网页源代码
求一个VB.NET进行局域网内UDP广播的源代码例子给你个udp多播例子，广播不是很清楚，呵呵
Imports System.Net
Imports System.Net.Sockets
Imports System.Text
Public Class Form1
Inherits System.Windows.Forms.Form
Dim port As String
Dim ipadd As String
Dim ipend As IPEndPoint
Dim sendudp As New UdpClient()
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Button1.Click
Dim ipadress As IPAddress
ipadress = IPAddress.Parse(TextBox1.Text)
'sendport = Int32.Parse(TextBox2.Text)
'ipend = New IPEndPoint(ipadress, sendport)
Try
sendudp.JoinMulticastGroup(ipadress)
MessageBox.Show("启动完成！")
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub
用vb.net编写记事本源代码Dim sFileName As String
Dim Search
Private Sub dateTimeMenu_Click()
Text1.Text = Now
End Sub
Private Sub deleteMenu_Click()
Text1.Text = Left(Text1.Text, Text1.SelStart) + Mid(Text1.Text, Text1.SelStart + Text1.SelLength + 1)
End Sub
Private Sub findMenu_Click()
Search = InputBox("请输入要查找的字词：")
Dim Where1 '获取需要查找的字符串变量
Text1.SetFocus '文本框获得焦点，以显示所找到的内容Search = InputBox("请输入要查找的字词：")
Where1 = InStr(Text1.Text, Search) '在文本中查找字符串
If Where1 Then
'若找到则设置选定的起始位置并使找到的字符串高亮
Text1.SelStart = Where1 - 1
【vb.net案例源代码 vb的源代码】Text1.SelLength = Len(Search)
' Me.Caption = Where1 '测试用
'否则给出提示
Else: MsgBox "未找到所要查找的字符串 。", vbInformation, "提示"
End If
End Sub

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