教育系统应用

开发平台：
Visual Basic

Frmdenlu.frm：源码内容
							VERSION 5.00
Begin VB.Form Frmdenlu 
   Caption         =   "登录"
   ClientHeight    =   2670
   ClientLeft      =   3360
   ClientTop       =   2880
   ClientWidth     =   4725
   Icon            =   "Frmdenlu.frx":0000
   LinkTopic       =   "Form2"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2670
   ScaleWidth      =   4725
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton Command2 
      Height          =   300
      Left            =   3480
      Picture         =   "Frmdenlu.frx":0442
      Style           =   1  'Graphical
      TabIndex        =   6
      Top             =   2280
      Width           =   1095
   End
   Begin VB.CommandButton Command1 
      Height          =   300
      Left            =   2160
      Picture         =   "Frmdenlu.frx":099D
      Style           =   1  'Graphical
      TabIndex        =   5
      Top             =   2280
      Width           =   1095
   End
   Begin VB.Frame Frame1 
      Appearance      =   0  'Flat
      BackColor       =   &H00C0C0C0&
      ForeColor       =   &H80000008&
      Height          =   1575
      Left            =   120
      TabIndex        =   0
      Top             =   600
      Width           =   4455
      Begin VB.TextBox Text2 
         Appearance      =   0  'Flat
         BackColor       =   &H80000018&
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H000000FF&
         Height          =   350
         IMEMode         =   3  'DISABLE
         Left            =   1320
         PasswordChar    =   "*"
         TabIndex        =   4
         Top             =   960
         Width           =   2055
      End
      Begin VB.TextBox Text1 
         Appearance      =   0  'Flat
         BackColor       =   &H80000018&
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H000000FF&
         Height          =   350
         Left            =   1320
         TabIndex        =   2
         Top             =   360
         Width           =   2055
      End
      Begin VB.Image Image3 
         Height          =   480
         Left            =   3600
         Picture         =   "Frmdenlu.frx":0F74
         Top             =   840
         Width           =   480
      End
      Begin VB.Image Image2 
         Height          =   480
         Left            =   3600
         Picture         =   "Frmdenlu.frx":13B6
         Top             =   360
         Width           =   480
      End
      Begin VB.Label Label2 
         Caption         =   "密码："
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H00C00000&
         Height          =   255
         Left            =   240
         TabIndex        =   3
         Top             =   960
         Width           =   975
      End
      Begin VB.Label Label1 
         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
         ForeColor       =   &H00C00000&
         Height          =   255
         Left            =   240
         TabIndex        =   1
         Top             =   360
         Width           =   975
      End
   End
   Begin VB.Image Image4 
      Height          =   480
      Left            =   480
      Picture         =   "Frmdenlu.frx":17F8
      Top             =   2160
      Width           =   480
   End
   Begin VB.Image Image1 
      Height          =   480
      Left            =   360
      Picture         =   "Frmdenlu.frx":1C3A
      Top             =   120
      Width           =   480
   End
   Begin VB.Label Label3 
      Caption         =   "某某学校"
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   15.75
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H000000FF&
      Height          =   375
      Left            =   1680
      TabIndex        =   7
      Top             =   120
      Width           =   1575
   End
End
Attribute VB_Name = "Frmdenlu"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
Dim mrc As ADODB.Recordset
txtsql = "select username from use where username='" & Trim(Text1.Text) & "'"
Set mrc = ExecuteSQL(txtsql)
If mrc.EOF = True Then
  MsgBox " 用户名错误！", vbExclamation + vbOKOnly, "警告"
  Text1.SetFocus
  Text1.SelStart = 0
  Text1.SelLength = Len(Text1.Text)
  Exit Sub
End If
username = mrc.Fields(0)
txtsql = "select username from use where password='" & Trim(Text2.Text) & "'"
Set mrc = ExecuteSQL(txtsql)
If mrc.EOF = True Then
  MsgBox " 密码错误！", vbExclamation + vbOKOnly, "警告"
  Text2.SetFocus
  Text2.SelStart = 0
  Text2.SelLength = Len(Text2.Text)
  Exit Sub
End If
MDIForm1.Show
Unload Me
End Sub
Private Sub Command2_Click()
Unload Me
End Sub
Private Sub Text1_KeyPress(KeyAscii As Integer)
If KeyAscii = 13 Then
  Text2.SetFocus
End If
End Sub
Private Sub Text2_KeyPress(KeyAscii As Integer)
If KeyAscii = 13 Then
 Command1.SetFocus
End If
End Sub

						