login.frm

本文首先分析了自动组卷系统在具体的教学活动过程中的实际需求

VERSION 5.00
Object = "{67397AA1-7FB1-11D0-B148-00A0C922E820}#6.0#0"; "MSADODC.OCX"
Begin VB.Form login 
   BorderStyle     =   0  'None
   Caption         =   "请您先登录："
   ClientHeight    =   4020
   ClientLeft      =   0
   ClientTop       =   0
   ClientWidth     =   5385
   BeginProperty Font 
      Name            =   "宋体"
      Size            =   12
      Charset         =   134
      Weight          =   400
      Underline       =   0   'False
      Italic          =   0   'False
      Strikethrough   =   0   'False
   EndProperty
   LinkTopic       =   "Form2"
   ScaleHeight     =   4020
   ScaleWidth      =   5385
   ShowInTaskbar   =   0   'False
   StartUpPosition =   2  '屏幕中心
   Begin VB.TextBox Text1 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      IMEMode         =   3  'DISABLE
      Left            =   1920
      PasswordChar    =   "*"
      TabIndex        =   4
      Top             =   1920
      Width           =   1575
   End
   Begin VB.ComboBox Combo1 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   420
      ItemData        =   "login.frx":0000
      Left            =   1920
      List            =   "login.frx":0002
      TabIndex        =   3
      Text            =   "请选择"
      Top             =   1200
      Width           =   1575
   End
   Begin MSAdodcLib.Adodc Adodc1 
      Height          =   495
      Left            =   -1320
      Top             =   3960
      Visible         =   0   'False
      Width           =   1695
      _ExtentX        =   2990
      _ExtentY        =   873
      ConnectMode     =   0
      CursorLocation  =   3
      IsolationLevel  =   -1
      ConnectionTimeout=   15
      CommandTimeout  =   30
      CursorType      =   3
      LockType        =   3
      CommandType     =   2
      CursorOptions   =   0
      CacheSize       =   50
      MaxRecords      =   0
      BOFAction       =   0
      EOFAction       =   0
      ConnectStringType=   1
      Appearance      =   1
      BackColor       =   -2147483643
      ForeColor       =   -2147483640
      Orientation     =   0
      Enabled         =   -1
      Connect         =   ""
      OLEDBString     =   ""
      OLEDBFile       =   ""
      DataSourceName  =   ""
      OtherAttributes =   ""
      UserName        =   ""
      Password        =   ""
      RecordSource    =   ""
      Caption         =   "Adodc1"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      _Version        =   393216
   End
   Begin VB.CommandButton denglu 
      Caption         =   "登录"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   4680
      TabIndex        =   2
      Top             =   3600
      Width           =   615
   End
   Begin VB.Label Label2 
      BackStyle       =   0  'Transparent
      Caption         =   "密码"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H0000FFFF&
      Height          =   255
      Left            =   1080
      TabIndex        =   1
      Top             =   2040
      Width           =   735
   End
   Begin VB.Label Label1 
      BackStyle       =   0  'Transparent
      Caption         =   "用户名"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H0080FFFF&
      Height          =   375
      Left            =   960
      TabIndex        =   0
      Top             =   1200
      Width           =   855
   End
End
Attribute VB_Name = "login"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim b As Boolean
Dim cnt As Integer
Dim userid As Integer


Private Sub Combo1_Click()
 userid = Combo1.ListIndex
 Text1.SetFocus
 
End Sub

Private Sub denglu_Click()

 Adodc1.Recordset.MoveFirst
 For p = 1 To userid
 Adodc1.Recordset.MoveNext
 Next
 If Text1.Text <> Adodc1.Recordset("密码") Then
  
 MsgBox "您输入的密码不正确，请重新登录", vbCritical, "错误提示"
Else
cnt = Adodc1.Recordset("访问次数") + 1
k = MsgBox("祝贺你成功登录 " + Chr(13) + "这是您第" & cnt & "次访问该系统", vbOKOnly, "Congratulations")
  Adodc1.Recordset("访问次数") = cnt
  Adodc1.Recordset.update
  End If
If k = 1 Then
enter.Visible = True
Unload Me
Load enter
 End If
End Sub


Private Sub Form_Load()

login.Picture = LoadPicture(App.Path & "\login2.jpg")
Adodc1.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + App.Path + "\datadb.mdb"
Adodc1.RecordSource = "登录"
Adodc1.Refresh
Adodc1.Recordset.MoveFirst

Do While Not Adodc1.Recordset.EOF
 Combo1.AddItem Adodc1.Recordset("用户名")
 Adodc1.Recordset.MoveNext
Loop

End Sub


Private Sub Text1_KeyPress(KeyAscii As Integer)
If KeyAscii = 13 Then
denglu.SetFocus
End If
End Sub