frm_login.frm

中学教务管理系统是基于河南大学附属中学的教务管理条件所涉及

VERSION 5.00
Begin VB.Form frm_login 
   BackColor       =   &H00C0C0FF&
   BorderStyle     =   1  'Fixed Single
   Caption         =   "教务管理系统V1.0——登陆界面"
   ClientHeight    =   2895
   ClientLeft      =   4620
   ClientTop       =   2265
   ClientWidth     =   4680
   ControlBox      =   0   'False
   ForeColor       =   &H8000000B&
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   Moveable        =   0   'False
   ScaleHeight     =   2895
   ScaleWidth      =   4680
   StartUpPosition =   1  '所有者中心
   Begin VB.TextBox Text2 
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   2280
      PasswordChar    =   "*"
      TabIndex        =   1
      Top             =   1200
      Width           =   1815
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确  定"
      Default         =   -1  'True
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   14.25
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   360
      TabIndex        =   2
      Top             =   2040
      Width           =   1455
   End
   Begin VB.CommandButton Command2 
      Cancel          =   -1  'True
      Caption         =   "取  消"
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   14.25
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2640
      TabIndex        =   3
      Top             =   2040
      Width           =   1455
   End
   Begin VB.TextBox Text1 
      BeginProperty Font 
         Name            =   "Times New Roman"
         Size            =   12
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   405
      IMEMode         =   3  'DISABLE
      Left            =   2280
      TabIndex        =   0
      Top             =   360
      Width           =   1815
   End
   Begin VB.Label Label2 
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      Caption         =   "输入密码："
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   14.25
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   285
      Left            =   360
      TabIndex        =   5
      Top             =   1200
      Width           =   1575
   End
   Begin VB.Label Label1 
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      Caption         =   "输入用户名："
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   14.25
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   285
      Left            =   360
      TabIndex        =   4
      Top             =   360
      Width           =   1890
   End
End
Attribute VB_Name = "frm_login"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim db As Database
Dim rs As Recordset
Dim sql As String
Dim i As Integer

Private Sub Command1_Click()
i = i + 1
If i = 3 Then
   MsgBox "很抱歉，您已经三次输入错误，为了系统的安全，您将不能进入系统！", 0 + 64 + 0 + 0, "系统提示信息"
   Text1.Enabled = False
   Text2.Enabled = False
   Command1.Enabled = False
Else
  Set db = OpenDatabase(App.Path + "\db\teaching_manage.mdb")
  Set rs = db.OpenRecordset("select users_info.id from users_info where users_info.id='" & Text1.Text & "'")
  If rs.EOF Or rs.BOF Then
     MsgBox "没有此用户名，请检查您的输入是否正确！", 0 + 64 + 0 + 0, "系统提示信息"
     Text1.Text = ""
     Text2.Text = ""
     Text1.SetFocus
  Else
     Set rs = db.OpenRecordset("select users_info.id from users_info where users_info.id='" & Text1.Text & "'and users_info.password='" & Text2.Text & "'")
     If rs.EOF Or rs.BOF Then
        MsgBox "密码错误，请检查输入是否正确！", 0 + 64 + 0 + 0, "系统提示信息"
        Text2.Text = ""
        Text2.SetFocus
     Else
        Userid = Text1.Text
        frm_welcome.Show
        Unload Me
     End If
  End If
End If
End Sub

Private Sub Command2_Click()
End
End Sub

Private Sub Form_Activate()
Text1.SetFocus
End Sub

Private Sub Form_Load()
i = 0
Text1.Text = ""
Text2.Text = ""
End Sub