vb操作网站内容

答案：下面我完成第一个点击“确认投注”的操作：
 
Private Sub WebBrowser1_DocumentComplete(ByVal pDisp As Object, URL As Variant)
  Set vDoc = WebBrowser1.Document
  For i = 0 To vDoc.All.length - 1 '检测所有标签
    If UCase(vDoc.All(i).tagName) = "input" Then '找到input标签
    Set vTag = vDoc.All(i)
      If vTag.Type = "button" And vTag.Value = "确认投注" Then '找到确定按钮。
        vTag.Select '按钮获得焦点，可以省略
        vTag.Click '点击提交了，一切都OK了
      End If
    End If
  Next i
End Sub
 
 
DocumentComplete事件是指web控件载入完成所触发的标志。而其下面的代码就很好解释了，首先是根据标签，type，value获得指定控件的焦点，再发送点击指令。
 
下面的确定也是一样的方法。其次，文本框的操作方法也是类似的，在此我不一一列举。如果你感到困扰的话，可以加我QQ 138001655，我会亲自教你的。不过我很需要你的分数！谢谢成全。
 
 
数据库结构:
--------------------------------------
test.mdb [放在BIN目录下]
表 test(id 自动编号, img OLE)
----------------------------------------------

代码:
----------------------------------------------------
使用 一个 openfiledialog ,两个 picturebox

----------------------------------------------------------------------
Imports System.IO
Public Class Form1
    Inherits System.Windows.Forms.Form

    Dim cnn As Data.OleDb.OleDbConnection

    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        Me.Dispose(True)
    End Sub 
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If OpenFileDialog1.ShowDialog = DialogResult.OK Then
            PictureBox1.Image = Image.FromFile(OpenFileDialog1.FileName)
        End If
    End Sub
    Private Sub DBInit()
        Try
            cnn = New Data.OleDb.OleDbConnection("Provider=Microsoft.JET.OLEDB.4.0;Data Source=" & Application.StartupPath & "\test.mdb")
            cnn.Open()
        Catch exp As OleDb.OleDbException
            MsgBox(exp.Message)
            End
        End Try
    End Sub
    Private Sub DBRelease()
        cnn.Close()
        cnn = Nothing
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        If PictureBox1.Image Is Nothing Then
            MsgBox("请先选择图片", MsgBoxStyle.Exclamation)
            Exit Sub
        End If
        Dim fs As FileStream = New FileStream(OpenFileDialog1.FileName, FileMode.Open, FileAccess.Read)
        Dim bt(fs.Length) As Byte
        fs.Read(bt, 0, fs.Length)
        fs.Close()
        fs = Nothing
        Dim oleCmd As OleDb.OleDbCommand = New OleDb.OleDbCommand
        DBInit()
        oleCmd.Connection = cnn
        oleCmd.CommandType = CommandType.Text
        oleCmd.CommandText = "INSERT INTO test (img) VALUES (@img)"
        oleCmd.Parameters.Add("@img", OleDb.OleDbType.Binary).Value = bt
        oleCmd.ExecuteNonQuery()
        oleCmd = Nothing
        DBRelease()
        MsgBox("图片插入成功")
    End Sub
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Dim oleCmd As OleDb.OleDbCommand = New OleDb.OleDbCommand("SELECT img FROM test WHERE id=1")
        oleCmd.CommandType = CommandType.Text
        DBInit()
        oleCmd.Connection = cnn
        Dim dr As OleDb.OleDbDataReader = oleCmd.ExecuteReader(CommandBehavior.SingleRow)

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