vb模拟 图书管理系统

VERSION 5.00
Begin VB.Form 设置系统用户1 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "编辑用户"
   ClientHeight    =   2700
   ClientLeft      =   45
   ClientTop       =   435
   ClientWidth     =   3270
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2700
   ScaleWidth      =   3270
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton Command2 
      Caption         =   "取消"
      Height          =   375
      Left            =   2040
      TabIndex        =   8
      Top             =   2160
      Width           =   735
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确定"
      Height          =   375
      Left            =   480
      TabIndex        =   7
      Top             =   2160
      Width           =   735
   End
   Begin VB.Frame Frame1 
      Caption         =   "用户编辑"
      Height          =   1935
      Left            =   120
      TabIndex        =   0
      Top             =   120
      Width           =   3015
      Begin VB.ComboBox Combo1 
         Height          =   300
         Left            =   1080
         TabIndex        =   6
         Top             =   1320
         Width           =   1695
      End
      Begin VB.TextBox Text2 
         Height          =   270
         Left            =   1080
         TabIndex        =   5
         Top             =   840
         Width           =   1695
      End
      Begin VB.TextBox Text1 
         Height          =   270
         Left            =   1080
         TabIndex        =   4
         Top             =   360
         Width           =   1695
      End
      Begin VB.Label Label3 
         Caption         =   "用户级别"
         Height          =   255
         Left            =   240
         TabIndex        =   3
         Top             =   1320
         Width           =   735
      End
      Begin VB.Label Label2 
         Caption         =   "口    令"
         Height          =   255
         Left            =   240
         TabIndex        =   2
         Top             =   840
         Width           =   735
      End
      Begin VB.Label Label1 
         Caption         =   "用 户 名"
         Height          =   255
         Left            =   240
         TabIndex        =   1
         Top             =   360
         Width           =   855
      End
   End
End
Attribute VB_Name = "设置系统用户1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
Dim sqltxt1 As String
If Trim(Text1.Text) = "" Or Trim(Text2.Text) = "" Or Trim(Combo1.Text) = "" Then
MsgBox "数据项不全，请重新设置", vbOKOnly, "信息提示"
Text1.SetFocus
Exit Sub
End If
sqltxt1 = "select * from oper where 用户名='" + _
Trim(Text1.Text) + "'"
Set brs = exesql(sqltxt1)
If flag = 1 Then '添加操作
If brs.RecordCount <> 0 Then '原记录个数大于0
MsgBox "存在相同的记录", vbOKOnly, "信息提示"
Text1.SetFocus
brs.Close
Exit Sub
End If
brs.AddNew
brs.Fields("用户名") = Trim(Text1.Text)
brs.Fields("口令") = Trim(Text2.Text)
brs.Fields("级别") = Trim(Combo1.Text)
brs.Update
recs = recs + 1
Else '修改操作
Text1.Enabled = False
brs.Fields("用户名") = Trim(Text1.Text)
brs.Fields("口令") = Trim(Text2.Text)
brs.Fields("级别") = Trim(Combo1.Text)
brs.Update
End If
Unload Me
End Sub

Private Sub Command2_Click()
Unload Me
user = ""
End Sub

Private Sub Form_KeyPress(KeyAscii As Integer)
If KeyAscii = 13 Then
SendKeys "{TAB}"
End If
End Sub

Private Sub Form_Load()
Dim sqltxt As String
Dim sqltxt1 As String
Dim i As Integer
sqltxt = "select * from oper"
Set rs = exesql(sqltxt)
If flag = 2 Then
Text1.Text = rs.Fields("用户名")
Text2.Text = rs.Fields("口令")
Combo1.Text = rs.Fields("级别")
Text1.Enabled = False
End If
sqltxt1 = "select * from rlevel "
Set brs = exesql(sqltxt1)
Combo1.Text = brs.Fields("级别")
For i = 1 To brs.RecordCount
Combo1.AddItem brs.Fields("级别")
brs.MoveNext
Next i
End Sub

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