form1.frm

用VB开发的一些数据库的例子

VERSION 5.00
Begin VB.Form form1 
   Caption         =   "Access97数据库密码破解"
   ClientHeight    =   4050
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   7050
   LinkTopic       =   "Form1"
   ScaleHeight     =   4050
   ScaleWidth      =   7050
   StartUpPosition =   1  '所有者中心
   Begin VB.CommandButton Command1 
      Caption         =   "退出"
      Height          =   555
      Left            =   5400
      TabIndex        =   5
      Top             =   3495
      Width           =   1380
   End
   Begin VB.DriveListBox Drive1 
      Height          =   300
      Left            =   0
      TabIndex        =   3
      Top             =   150
      Width           =   2535
   End
   Begin VB.DirListBox Dir1 
      Height          =   2400
      Left            =   0
      TabIndex        =   2
      Top             =   495
      Width           =   2535
   End
   Begin VB.FileListBox File1 
      Archive         =   0   'False
      Height          =   2790
      Left            =   2790
      Pattern         =   "*.mdb"
      TabIndex        =   1
      Top             =   135
      Width           =   4005
   End
   Begin VB.TextBox text1 
      Height          =   345
      Left            =   945
      TabIndex        =   0
      Top             =   3060
      Width           =   5805
   End
   Begin VB.Label Label1 
      Caption         =   "密码："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   525
      Left            =   75
      TabIndex        =   4
      Top             =   3075
      Width           =   1005
   End
End
Attribute VB_Name = "form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Form_Load()
  Dir1.Path = App.Path
End Sub
Private Sub Dir1_Change()
  File1.Path = Dir1.Path
End Sub
Private Sub Drive1_Change()
  Dir1.Path = Drive1.Drive
End Sub
Private Sub File1_Click()
  Dim chart(13) As Byte
  Dim datafile As String
  text1 = ""
  If Len(File1.Path) > 3 Then
     datafile = File1.Path + "\" + File1.FileName
   Else
     datafile = File1.Path & File1.FileName
  End If
  If Right(File1.FileName, 3) = "mdb" Then               '判断是否为assecc 数据库
  Open Trim(datafile) For Binary Access Read As #1
  Get #1, 67, chart
     Close #1 '关闭文件
     If ((chart(0) Xor 134) = 0) Then
        text1.Text = File1.Name & " 数据库没有设置密码"
     Else
        text1 = text1 & Chr$(chart(0) Xor &H86)        '获得密码的第一个数
        text1 = text1 & Chr$(chart(1) Xor &HFB)
        text1 = text1 & Chr$(chart(2) Xor &HEC)
        text1 = text1 & Chr$(chart(3) Xor &H37)
        text1 = text1 & Chr$(chart(4) Xor &H5D)
        text1 = text1 & Chr$(chart(5) Xor &H44)
        text1 = text1 & Chr$(chart(6) Xor &H9C)
        text1 = text1 & Chr$(chart(7) Xor &HFA)
        text1 = text1 & Chr$(chart(8) Xor &HC6)
        text1 = text1 & Chr$(chart(9) Xor &H5E)
        text1 = text1 & Chr$(chart(10) Xor &H28)
        text1 = text1 & Chr$(chart(11) Xor &HE6)
        text1 = text1 & Chr$(chart(12) Xor &H13)
     End If
   Else
    text1 = "非access数据库！"
  End If
End Sub
Private Sub Command1_Click()
  End
End Sub