pass.frm

一个基于SQL的教师管理系统 数据库文件在教师信息管理系统文件夹下的“db”文件夹中。

VERSION 5.00
Begin VB.Form pass 
   Caption         =   "教师信息管理系统"
   ClientHeight    =   3990
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   5670
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   3990
   ScaleWidth      =   5670
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton Command2 
      Caption         =   "取消"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2880
      TabIndex        =   6
      Top             =   3120
      Width           =   975
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确定"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   1560
      TabIndex        =   5
      Top             =   3120
      Width           =   975
   End
   Begin VB.Frame Frame1 
      Caption         =   "用户登录"
      BeginProperty Font 
         Name            =   "隶书"
         Size            =   14.25
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   1575
      Left            =   720
      TabIndex        =   0
      Top             =   1080
      Width           =   3495
      Begin VB.TextBox Text1 
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   315
         IMEMode         =   3  'DISABLE
         Index           =   1
         Left            =   1440
         PasswordChar    =   "*"
         TabIndex        =   4
         Top             =   960
         Width           =   1215
      End
      Begin VB.TextBox Text1 
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   315
         Index           =   0
         Left            =   1440
         TabIndex        =   3
         Top             =   360
         Width           =   1215
      End
      Begin VB.Label Label2 
         AutoSize        =   -1  'True
         Caption         =   "口 令"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   700
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H00FF0000&
         Height          =   210
         Left            =   720
         TabIndex        =   2
         Top             =   1005
         Width           =   585
      End
      Begin VB.Label Label1 
         AutoSize        =   -1  'True
         Caption         =   "用户名"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   700
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H00FF0000&
         Height          =   210
         Left            =   720
         TabIndex        =   1
         Top             =   435
         Width           =   690
      End
   End
   Begin VB.Label Label3 
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      Caption         =   "教师信息管理系统"
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   21.75
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H000000FF&
      Height          =   435
      Left            =   930
      TabIndex        =   7
      Top             =   240
      Width           =   3720
   End
End
Attribute VB_Name = "pass"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Public n As Integer

Private Sub Command1_Click()
  Dim mrc As ADODB.Recordset
  txtsql = "select * from oper where 用户名='" & _
      Trim$(Text1(0).Text) & "'" & " And 口令 = '" & Trim$(Text1(1).Text) + "'"
  Set mrc = exesql(txtsql)
  If mrc.RecordCount = 0 Then '未找到用户记录
     n = n + 1
     If n < 3 Then
        MsgBox "没有这个用户,继续登录", vbOKOnly + vbExclamation, "信息提示"
        Text1(0).Text = ""
        Text1(1).Text = ""
        Text1(0).SetFocus
     Else
        MsgBox "已登录失败三次,退出系统", vbOKOnly + vbExclamation, "信息提示"
        mrc.Close
        Unload Me
     End If
  Else            '找到合法用户记录
     userlevel = Trim(mrc.Fields("权限"))
     mrc.Close
     Unload Me
     menu.Show  '调用main窗体
  End If
End Sub

Private Sub Command2_Click()
  Unload Me
End Sub

Private Sub Form_Load()
  n = 0    'n保存登录的次数
End Sub


Private Sub Text1_KeyPress(Index As Integer, KeyAscii As Integer)
  Call endata(KeyAscii)
End Sub