login.frm

图书馆管理系统,功能有对图书进行管理

VERSION 5.00
Begin VB.Form login 
   BackColor       =   &H00FFC0C0&
   Caption         =   "欢迎使用图书馆管理系统"
   ClientHeight    =   4425
   ClientLeft      =   4140
   ClientTop       =   4575
   ClientWidth     =   8445
   ForeColor       =   &H0080FFFF&
   LinkTopic       =   "Form1"
   ScaleHeight     =   4425
   ScaleWidth      =   8445
   Begin VB.PictureBox Picture1 
      BackColor       =   &H00FFC0C0&
      Height          =   3255
      Left            =   480
      Picture         =   "login.frx":0000
      ScaleHeight     =   3195
      ScaleWidth      =   3315
      TabIndex        =   7
      Top             =   720
      Width           =   3375
   End
   Begin VB.CommandButton Command2 
      BackColor       =   &H00FFC0C0&
      Caption         =   "退出(E)"
      Height          =   375
      Left            =   6840
      TabIndex        =   6
      Top             =   3360
      Width           =   1095
   End
   Begin VB.CommandButton Command1 
      BackColor       =   &H00FFC0C0&
      Caption         =   "登陆(L)"
      Height          =   375
      Left            =   5160
      TabIndex        =   5
      Top             =   3360
      Width           =   1095
   End
   Begin VB.TextBox Text2 
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   5760
      PasswordChar    =   "*"
      TabIndex        =   3
      Top             =   2400
      Width           =   1935
   End
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   5760
      TabIndex        =   1
      Top             =   1560
      Width           =   1935
   End
   Begin VB.Label Label1 
      BackColor       =   &H00FFC0C0&
      Caption         =   "hlj   版权所有"
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   9.75
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00DD7142&
      Height          =   375
      Index           =   1
      Left            =   3720
      TabIndex        =   8
      Top             =   4080
      Width           =   1815
   End
   Begin VB.Label Label3 
      BackColor       =   &H00FFC0C0&
      Caption         =   "口令:"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   4800
      TabIndex        =   4
      Top             =   2400
      Width           =   735
   End
   Begin VB.Label Label2 
      BackColor       =   &H00FFC0C0&
      Caption         =   "用户名:"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   4800
      TabIndex        =   2
      Top             =   1560
      Width           =   855
   End
   Begin VB.Label Label1 
      BackColor       =   &H00FFC0C0&
      Caption         =   "  图   书   馆    管    理    系   统"
      BeginProperty Font 
         Name            =   "华文彩云"
         Size            =   26.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   -1  'True
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00DD7142&
      Height          =   495
      Index           =   0
      Left            =   480
      TabIndex        =   0
      Top             =   120
      Width           =   7335
   End
End
Attribute VB_Name = "login"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
Dim mydb As Database
Dim myrec As Recordset
Dim spl As String
Static count As Integer
Text1.SetFocus
If Text1.Text = "" Then
   MsgBox "管理员名不能为空，请输入名字！", , "登陆失败"
   Text1.SetFocus
   Exit Sub
ElseIf Text2.Text = "" Then
   MsgBox "密码不能为空，请输入密码！", , "登陆失败"
   Text2.SetFocus
   Exit Sub
End If

Set mydb = OpenDatabase(VB.App.Path + "\librarySystem", False, False)
spl = "select * from manager where name='" & Text1.Text & "' and code='" & Text2.Text & "'"
Set myrec = mydb.OpenRecordset(spl)
If myrec.RecordCount > 0 Then
   sysMain.Show
   'sysMain.MbookMag.Item.Enabled = False
   login.Hide
Else
   count = count + 1
   MsgBox "用户名或密码错误！", , "还有" & 3 - count & "次机会"
   Text1.Text = ""
   Text2.Text = ""
   Text1.SetFocus
   If count >= 3 Then
      MsgBox "超过登陆次数，无权登陆系统"
      End
      End If
End If
myrec.Close
mydb.Close
End Sub

Private Sub Command2_Click()
End
End Sub