Imports System.Net
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Imports System.IO
Imports System.Text.RegularExpressions
Public Class Form1
Private Sub button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim stream As IO.Stream = WebRequest.Create(UrlAdress).GetResponse().GetResponseStream()
'注意urladress為你上面的網(wǎng)頁地址。
Dim sr As StreamReader = New StreamReader(stream, System.Text.Encoding.UTF8)
Label1.Text = Regex.Match(sr.ReadToEnd, "回答采納率").ToString
'sr。readtoend讀取網(wǎng)頁流到末尾,即使用正則表達(dá)式從網(wǎng)頁流中提取“回答采納率”,賦值給Label1.Text ‘沒有則為空
sr.Dispose() '關(guān)閉流
End Sub'要提取什么東西用正則表達(dá)式最好
End Class
System.Diagnostics.Process.Start("")
或者用 WebBrowser控件,代碼 WebBrowser1.Url = New System.Uri("")
(轉(zhuǎn)自網(wǎng)絡(luò))
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
WebBrowser1.Navigate("")
End Sub
Private Sub WebBrowser1_DocumentTitleChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles WebBrowser1.DocumentTitleChanged
Me.Text = WebBrowser1.Document.Url.ToString
End Sub
'******************************
'函數(shù)名:GetHtml
'作 用:讀取其他網(wǎng)站頁面內(nèi)容
'參 數(shù):Url是要讀取的網(wǎng)站地址
'返回值:讀取后的網(wǎng)站內(nèi)容
'******************************
Function GetHtml(ByVal Url As String, ByVal bm As String) As String
Dim httpReq As System.Net.HttpWebRequest
Dim httpResp As System.Net.HttpWebResponse
Dim httpURL As New System.Uri(Url)
Dim respHTML As String = ""
httpReq = CType(WebRequest.Create(httpURL), HttpWebRequest)
httpReq.Method = "GET"
Try
httpResp = CType(httpReq.GetResponse(), HttpWebResponse)
httpReq.KeepAlive = False ' 獲取或設(shè)置一個值,該值指示是否與 Internet資源建立持久連接。
Dim reader As StreamReader = New StreamReader(httpResp.GetResponseStream, System.Text.Encoding.GetEncoding(bm))
respHTML = reader.ReadToEnd() 'respHTML就是網(wǎng)頁源代碼
Catch
respHTML = "zhongduan"
End Try
Return respHTML
End Function
分享文章:vb點虐
讀網(wǎng)址 vbnet webbrowser
當(dāng)前鏈接:http://jinyejixie.com/article34/ddisdse.html
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