frmlogin.frm

这是在visualbasic环境下设计的源码：酒店管理系统

VERSION 5.00
Begin VB.Form frmlogin 
   Caption         =   "用户登录"
   ClientHeight    =   5130
   ClientLeft      =   2715
   ClientTop       =   2190
   ClientWidth     =   7815
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   ScaleHeight     =   5130
   ScaleWidth      =   7815
   Begin VB.CommandButton Command2 
      Caption         =   "取消"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   5520
      TabIndex        =   5
      Top             =   3240
      Width           =   1575
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确定"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2760
      TabIndex        =   4
      Top             =   3240
      Width           =   1455
   End
   Begin VB.TextBox text2 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   525
      IMEMode         =   3  'DISABLE
      Left            =   2160
      PasswordChar    =   "*"
      TabIndex        =   3
      Top             =   1560
      Width           =   2055
   End
   Begin VB.TextBox text1 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   555
      Left            =   2160
      TabIndex        =   2
      Top             =   480
      Width           =   2055
   End
   Begin VB.Label Label3 
      BackStyle       =   0  'Transparent
      BorderStyle     =   1  'Fixed Single
      Caption         =   "用户名与密码相同，分别为1、2、3、4、5、6、7、8"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H8000000D&
      Height          =   1095
      Left            =   480
      TabIndex        =   6
      Top             =   3840
      Width           =   3975
   End
   Begin VB.Label Label1 
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      Caption         =   "用户名"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   285
      Left            =   960
      TabIndex        =   0
      Top             =   600
      Width           =   855
   End
   Begin VB.Label Label2 
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      Caption         =   "密码"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   285
      Left            =   1080
      TabIndex        =   1
      Top             =   1680
      Width           =   570
   End
   Begin VB.Image Image1 
      Height          =   5115
      Left            =   0
      Picture         =   "frmlogin.frx":0000
      Top             =   0
      Width           =   7800
   End
End
Attribute VB_Name = "frmlogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim cnt As Integer                     '记录确定次数

Private Sub Command1_Click()
Dim sql As String
Dim rs_login As New ADODB.Recordset
If Trim(text1.Text) = "" Then            '判断输入的用户名是否为空
   MsgBox "没有这个用户", vbOKOnly + vbExclamation, ""
   text1.SetFocus
Else
   sql = "select * from 系统管理 where 用户名='" & text1.Text & "'"
   rs_login.Open sql, conn, adOpenKeyset, adLockPessimistic
   If rs_login.EOF = True Then
      MsgBox "没有这个用户", vbOKOnly + vbExclamation, ""
      text1.SetFocus
   Else                                  '检验密码是否正确
      If Trim(rs_login.Fields(1)) = Trim(text2.Text) Then
          userID = text1.Text
          userpow = rs_login.Fields(2)
          rs_login.Close
          Unload Me
          MDIForm1.Show
      Else
         MsgBox "密码不正确", vbOKOnly + vbExclamation, ""
         text2.SetFocus
      End If
   End If
End If
cnt = cnt + 1
If cnt = 3 Then
   Unload Me
End If
Exit Sub
End Sub

Private Sub Command2_Click()
Unload Me
End Sub

Private Sub Form_Load()
Dim connectionstring As String
connectionstring = "provider=Microsoft.Jet.oledb.4.0;" & _
                   "data source=jiudian.mdb"
conn.Open connectionstring
cnt = 0
End Sub