vb模拟 图书管理系统

VERSION 5.00
Begin VB.Form 编辑信息1 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "记录编辑"
   ClientHeight    =   1920
   ClientLeft      =   45
   ClientTop       =   435
   ClientWidth     =   4530
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   1920
   ScaleWidth      =   4530
   StartUpPosition =   2  '屏幕中心
   Begin VB.Frame Frame1 
      Caption         =   "记录编辑"
      Height          =   1575
      Left            =   120
      TabIndex        =   0
      Top             =   120
      Width           =   4215
      Begin VB.CommandButton Command2 
         Caption         =   "取消"
         Height          =   375
         Left            =   2520
         TabIndex        =   4
         Top             =   960
         Width           =   855
      End
      Begin VB.CommandButton Command1 
         Caption         =   "确定"
         Height          =   375
         Left            =   720
         TabIndex        =   3
         Top             =   960
         Width           =   855
      End
      Begin VB.TextBox Text1 
         Height          =   270
         Left            =   1200
         TabIndex        =   2
         Text            =   "Text1"
         Top             =   360
         Width           =   2655
      End
      Begin VB.Label Label1 
         Caption         =   "Label1"
         Height          =   255
         Left            =   360
         TabIndex        =   1
         Top             =   360
         Width           =   615
      End
   End
End
Attribute VB_Name = "编辑信息1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click() '确定
Dim sqltxt As String
If Trim(Text1.Text) = "" Then
MsgBox "数据项不能为空，请重新设置", vbOKOnly, "信息提示"
Text1.SetFocus
Exit Sub
End If
sqltxt = "select * from press where fn='" + Trim(Text1.Text) + "'"
Set brs = exesql(sqltxt)
If flag = 1 Then '添加操作，先判断是否存在相同的记录
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("fn") = Trim(Text1.Text)
brs.Update
Text1.Text = ""
recs = recs + 1
Else '修改操作
brs.Fields("fn") = Trim(Text1.Text)
brs.Update
End If
Unload Me
End Sub

Private Sub Command2_Click()
Unload Me
End Sub

Private Sub Form_Load()
Label1.Caption = cap
If flag = 1 Then
Text1.Text = ""
Else
Text1.Text = press1
End If
End Sub