vb.net获取网页的简单示例

    Private Function getSourceHtml() As String
        Dim result As String = ""
        Try
            Dim i As Integer = Int(Rnd(Now.Second) * 10 + 1)
            Dim web As New System.Net.WebClient()
            web.Headers.Add("Content-Type", "application/x-www-form-urlencoded")
            Dim d As Byte() = System.Text.Encoding.UTF8.GetBytes("method=copy&u=123&p=123")
            Dim res As Byte() = web.UploadData("www.junjv.com", "POST", d)
            result = Encoding.UTF8.GetString(res)
        Catch ex As Exception
            'MsgBox(ex.Message)
        End Try
        Return result
    End Function

等于http://www.junjv.com/?method=copy&u=123&p=123