如何用vb.net獲得網(wǎng)頁的源代碼

Dim url As String=" 網(wǎng)址"

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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 ' 獲取或設(shè)置一個(gè)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(-0))

Dim respHTML As String = reader.ReadToEnd() 'respHTML就是網(wǎng)頁源代碼

請(qǐng)問為什么我公司的vb.net源碼到了我的電腦上運(yùn)行就會(huì)顯示好多未聲明??？

用API 函數(shù)GetVolumeInformation得到的不是硬盤的序列號(hào)?。。?/p>

BOOL GetVolumeInformation(

LPCTSTR lpRootPathName,

LPTSTR lpVolumeNameBuffer,

DWORD nVolumeNameSize,

LPDWORD lpVolumeSerialNumber,

LPDWORD lpMaximumComponentLength,

LPDWORD lpFileSystemFlags,

LPTSTR lpFileSystemNameBuffer,

DWORD nFileSystemNameSize

);

看看英文?。篤olumeSerialNumber!得到的只是卷區(qū)序列號(hào)！

硬盤的序列號(hào)應(yīng)該是

Drive Model Number________________: WDC WD400EB-00CPF0

Drive Serial Number_______________: WD-WCAATF083586

Drive Controller Revision Number__: 06.04G06

Controller Buffer Size on Drive___: 2097152 bytes

Drive Type________________________: Fixed

Drive Size________________________: 40020664320 bytes

中：

Drive Serial Number_______________: WD-WCAATF083586 這才是硬盤Serial Number！?。?！

這個(gè)號(hào)是不會(huì)因?yàn)槟愀袷交脖P而改動(dòng)，也不是網(wǎng)上流傳的修改工具能改的，（其實(shí)網(wǎng)上流傳的修改工具的也不過是卷區(qū)號(hào)而已?。?/p>

建議用 DiskID.dll或DiskID32.dll來獲取

用diskid.dll和disk32.dll獲得硬盤序列號(hào)

1.調(diào)用diskid.dll實(shí)現(xiàn)：

Option Explicit

Private Declare Function IsWinNT Lib "DiskID.DLL" () As Long

Private Declare Function ReadPhysicalDrive9X Lib "DiskID.DLL" (driveID As Long, buffer As Long, bufLen As Long) As Long

Private Declare Function ReadPhysicalDriveInNT Lib "DiskID.DLL" (driveID As Long, buffer As Long, bufLen As Long) As Long

Private Type DRIVER_INFO_OK

ModalNumber(39) As Byte

SerialNumber(19) As Byte

ControlNum(7) As Byte

DriveType As Long

Cylinders As Long

Heads As Long

Sectors As Long

End Type

Private Sub Command1_Click()

Dim x As DRIVER_INFO_OK

Dim i As Long

If IsWinNT = 1 Then

i = ReadPhysicalDriveInNT(ByVal 0, ByVal VarPtr(x), ByVal 256)

Else

i = ReadPhysicalDrive9X(ByVal 0, ByVal VarPtr(x), ByVal 256)

End If

Dim s As String

s = StrConv(x.ModalNumber, vbUnicode)

s = Left(s, InStr(1, s, Chr(0)) - 1)

MsgBox "硬件廠商代碼為：" + s

s = StrConv(x.SerialNumber, vbUnicode)

s = Left(s, InStr(1, s, Chr(0)) - 1)

MsgBox "硬盤序列號(hào)為：" + s

End Sub

2.調(diào)用diskid32.dll實(shí)現(xiàn)：

Option Explicit

Private Declare Function DiskID32 Lib "DiskID32.DLL" (ByRef DiskModel As Byte, ByRef DiskID As Byte) As Long

Private Sub Command1_Click()

Dim DiskModel(31) As Byte, DiskID(31) As Byte, i As Integer, Model As String, ID As String

If DiskID32(DiskModel(0), DiskID(0)) 1 Then

MsgBox "get diskid32 err"

Exit Sub

End If

For i = 0 To 31

If Chr(DiskModel(i)) Chr(0) Then

Model = Model Chr(DiskModel(i))

End If

If Chr(DiskID(i)) Chr(0) Then

ID = ID Chr(DiskID(i))

End If

Next

MsgBox "硬件產(chǎn)生代碼為：" + Model

MsgBox "硬盤序列號(hào)為：" + ID

End Sub

說明：diskid.dll可從下載

diskid32.dll可從下載

如何用vb.net獲取網(wǎng)頁源代碼

使用webbrowser控件來加載網(wǎng)頁，然后再

Private

Sub

WebBrowser

1_DocumentCompleted下通過使用WebBrowser1.Document.Body.

InnerHtml

來獲取網(wǎng)頁的源代碼，或使用

WebBrowser1.Document.Body.InnerText來獲取網(wǎng)頁中的文本。之后可以通過字符串控制指令或者

正則表達(dá)式

來精確獲取到你所需的數(shù)據(jù)。

求vb.net的源代碼，最好說明其解決問題，越多越好，滿意加50分。

下面這段代碼，是我用來計(jì)算每個(gè)月存500元進(jìn)銀行，連續(xù)30年，最后連本帶利能有多少錢。這里面涉及復(fù)利計(jì)算。界面中右邊的文本框用來輸出每一次計(jì)算的結(jié)果。

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

? Dim nianxian As Integer '年限變量

? Dim dingcun As Integer '定存變量

? Dim fuli_big As Long '大復(fù)利

? Dim fuli_small As Long '小復(fù)利

? Dim i As Integer '循環(huán)變量

? Dim DATAstring As String '數(shù)據(jù)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

? 結(jié)果_TextBox.Text = Str(fuli_big) + "元"

End Sub