vb.net读取机器码 vb读取数据写入access
vb.net 二进制读取文件
VB.NET打开二进制文件用fileopen完成，打开二进制文件的形式为：openmode.binary
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读取二进制文件用的是fileget方法，写入二进制文件用的是fileput方法。
应用示例：将一批随机数保存在一个dat文件中，然后再将其提取到文本框中。
二进制文件的读写一批随机数的存取，程序为：
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim x, i, fn As Integer
Dim s As String = ""
fn = FreeFile()
FileOpen(fn, "d:\data.dat", OpenMode.Binary)
For i = 1 To 8
x = Int(Rnd() * 100)
s = s + Str(x)
FilePut(fn, x)
Next
FileClose(fn)
TextBox1.Text = s
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim x, fn As Integer
Dim s As String = ""
fn = FreeFile()
FileOpen(fn, "d:\data.dat", OpenMode.Binary)
Do While Not EOF(fn)
FileGet(fn, x)
s = s + Str(x) + " "
Loop
FileClose(fn)
TextBox1.Text = s
End Sub
win7下vb.net 如何获取硬盘序列号
Private Function 硬盘序列号() As String
Try
Dim myInfo As Microsoft.Win32.RegistryKey = My.Computer.Registry.LocalMachine.OpenSubKey("HARDWARE\DEVICEMAP\Scsi\Scsi Port 0\Scsi Bus 1\Target Id 0\Logical Unit Id 0")
硬盘序列号 = Trim(myInfo.GetValue("SerialNumber"))
Catch
Try
Dim myInfo As Microsoft.Win32.RegistryKey = My.Computer.Registry.LocalMachine.OpenSubKey("HARDWARE\DEVICEMAP\Scsi\Scsi Port 1\Scsi Bus 1\Target Id 0\Logical Unit Id 0")
硬盘序列号 = Trim(myInfo.GetValue("SerialNumber"))
Catch
硬盘序列号 = ""
End Try
End Try
End Function
试下，如果返回为空，则表示失败。
在本机win8win8.1有效，不过好像在有些机器上没用。
VB获取电脑机器码
很难达到你的要求的,VB好像是获取不到硬盘的物理序列号的,只能获取到某一个分区的序列号.不过可以调用其它的程序写的获取硬盘物理序列号的dll来获取,CPU的序列号我用的是wmi.VB本来对底层方面就不是很好
引用api获得硬盘序列号
Private Declare Function MymachineC Lib "kernel32" Alias "GetVolumeInformationA" (ByVal lpRootPathName As String, ByVal lpVolumeNameBuffer As String, ByVal nVolumeNameSize As Long, lpVolumeSerialNumber As Long, lpMaximumComponentLength As Long, lpFileSystemFlags As Long, ByVal lpFileSystemNameBuffer As String, ByVal nFileSystemNameSize As Long) As Long
Private Sub Form_Load()
Dim AA, 硬盘序列号, Maxlen, Sysflag As Long: Dim VolName, FsysName As String
AA = MymachineC("c:\", VolName, 256, 硬盘序列号, Maxlen, Sysflag, FsysName, 256)
msgbox "C硬盘序列号-机器码啦-(16制): " Hex(硬盘序列号)
End Sub
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