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📄 frmlent.frm

📁 VB编制的图书管理系统,希望可给朋友们带来帮助.
💻 FRM
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            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   2880
         TabIndex        =   12
         Top             =   3120
         Width           =   960
      End
      Begin VB.Label Label9 
         AutoSize        =   -1  'True
         Caption         =   "今天日期"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   2880
         TabIndex        =   11
         Top             =   2400
         Width           =   960
      End
      Begin VB.Label Label8 
         AutoSize        =   -1  'True
         Caption         =   "借出天数"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   360
         TabIndex        =   10
         Top             =   3120
         Width           =   960
      End
      Begin VB.Label Label7 
         AutoSize        =   -1  'True
         Caption         =   "借出日期"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   360
         TabIndex        =   9
         Top             =   2400
         Width           =   960
      End
      Begin VB.Label Label6 
         AutoSize        =   -1  'True
         Caption         =   "出 版 社"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   360
         TabIndex        =   8
         Top             =   1680
         Width           =   960
      End
      Begin VB.Label Label5 
         AutoSize        =   -1  'True
         Caption         =   "书    名"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   360
         TabIndex        =   7
         Top             =   1080
         Width           =   960
      End
      Begin VB.Label Label4 
         AutoSize        =   -1  'True
         Caption         =   "类别"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   5400
         TabIndex        =   6
         Top             =   480
         Width           =   480
      End
      Begin VB.Label Label3 
         AutoSize        =   -1  'True
         Caption         =   "价格"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   3240
         TabIndex        =   5
         Top             =   480
         Width           =   480
      End
      Begin VB.Label Label2 
         AutoSize        =   -1  'True
         Caption         =   "书籍编号"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   360
         TabIndex        =   4
         Top             =   480
         Width           =   960
      End
   End
   Begin VB.Frame Frame1 
      Caption         =   "输入要还书的编号"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00004080&
      Height          =   1335
      Left            =   240
      TabIndex        =   0
      Top             =   240
      Width           =   7935
      Begin VB.TextBox Text1 
         Height          =   375
         Left            =   2280
         TabIndex        =   1
         Text            =   "Text1"
         Top             =   600
         Width           =   3495
      End
      Begin VB.Label Label16 
         BackColor       =   &H00808080&
         Caption         =   "Label16"
         Height          =   375
         Left            =   2340
         TabIndex        =   31
         Top             =   660
         Width           =   3495
      End
      Begin VB.Label Label13 
         AutoSize        =   -1  'True
         Caption         =   "书籍编号"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   14.25
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H00FF0000&
         Height          =   285
         Left            =   1080
         TabIndex        =   26
         Top             =   600
         Width           =   1140
      End
      Begin VB.Label Label1 
         AutoSize        =   -1  'True
         Caption         =   "Enter"
         ForeColor       =   &H000000FF&
         Height          =   180
         Left            =   6120
         TabIndex        =   2
         Top             =   960
         Width           =   450
      End
      Begin VB.Image Image1 
         Height          =   480
         Left            =   6000
         Picture         =   "frmLent.frx":0442
         Top             =   480
         Width           =   480
      End
   End
   Begin VB.Label Label28 
      BackColor       =   &H00808080&
      Caption         =   "Label28"
      Height          =   495
      Left            =   6540
      TabIndex        =   43
      Top             =   6180
      Width           =   1695
   End
End
Attribute VB_Name = "frmLent"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
    Dim strSQL As String
    If Text2.Text = "" Then Exit Sub
    strSQL = "Delete From 借阅信息 "
    strSQL = strSQL + "Where 借书证号='" + frmMain.Text1.Text + "'"
    strSQL = strSQL + " And 书籍编号='" + Text2.Text + "'"
    ADOcn.Execute strSQL
    
    strSQL = "Update 书籍信息 "
    strSQL = strSQL + "Set 是否被借出='" + "否" + "'"
    strSQL = strSQL + " Where 书籍编号='" + Text2.Text + "'"
    ADOcn.Execute strSQL
    
    Call mbdOpen("读者信息", "借书证号", frmMain.Text1.Text)
    
    strSQL = "Update 读者信息 "
    strSQL = strSQL + "Set 已借书数量='" + Str(Val(mbdGet("已借书数量")) - 1) + "'"
    strSQL = strSQL + " Where 借书证号='" + frmMain.Text1.Text + "'"
    ADOcn.Execute strSQL
    Call mbdClose
    
    Unload Me
End Sub

Private Sub Command1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
    Call cmdMouseDown(Command1)
End Sub

Private Sub Command1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
    Command1.BackColor = &H8000000D
End Sub

Private Sub Command1_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single)
    Call cmdMouseUp(Command1)
End Sub

Private Sub Form_Activate()
    Text1.Text = "": Text2.Text = "": Text3.Text = "": Text4.Text = "": Text5.Text = ""
    Text6.Text = "": Text7.Text = "": Text8.Text = ""
    Text9.Text = "": Text10.Text = "": Text11.Text = "": Text12.Text = ""
End Sub

Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
    Command1.BackColor = &H8000000F
End Sub

Private Sub Text1_KeyPress(KeyAscii As Integer)
    Dim ins As Integer, ins1 As Integer
    Dim huan As String
    Dim ADOrs As New Recordset
     
    ADOrs.ActiveConnection = ADOcn
    
    On Error GoTo xx:
    If KeyAscii = 13 Then
        ADOrs.Open "Select 借阅信息.借书证号,借阅信息.书籍编号,书籍信息.价格,书籍信息.书籍类别,书籍信息.书籍名称,书籍信息.出版社,借阅信息.出借日期,借阅信息.还书日期,读者类别.借书期限,读者类别.罚金计算 From 借阅信息,书籍信息,读者类别 Where 借阅信息.借书证号='" + frmMain.Text1.Text + "' And 借阅信息.书籍编号='" + Text1.Text + "'"
        Text2.Text = ADOrs("书籍编号")
        Text3.Text = ADOrs("价格")
        Text4.Text = ADOrs("书籍类别")
        Text5.Text = ADOrs("书籍名称")
        Text6.Text = ADOrs("出版社")
        Text7.Text = ADOrs("出借日期")
        huan = ADOrs("还书日期")
        Text8.Text = Format(Now, "yyyy-mm-dd")
        Text9.Text = ADOrs("借书期限")
        Text12.Text = ADOrs("罚金计算")
        ins = InStr(huan, "-")
        ins1 = InStr(6, huan, "-")
        Text10.Text = DateDiff("d", DateSerial(Int(Left(Text7.Text, 4)), Int(Mid(Text7.Text, ins + 1, ins1 - ins - 1)), Int(Right(Text7.Text, Len(Text7.Text) - ins1))), Now)
        If Val(DateDiff("d", DateSerial(Int(Left(huan, 4)), Int(Mid(huan, ins + 1, ins1 - ins - 1)), Int(Right(huan, Len(huan) - ins1))), Now)) >= 0 Then
        Text11.Text = DateDiff("d", DateSerial(Int(Left(huan, 4)), Int(Mid(huan, ins + 1, ins1 - ins - 1)), Int(Right(huan, Len(huan) - ins1))), Now)
        Text12.Text = Int(Val(Text12.Text) * Val(DateDiff("d", DateSerial(Int(Left(huan, 4)), Int(Mid(huan, ins + 1, ins1 - ins - 1)), Int(Right(huan, Len(huan) - ins1))), Now)) * 100 + 0.5) / 100
        Else
        Text11.Text = "0": Text12.Text = "0.00"
        End If
        Exit Sub
xx:
    Call Form_Activate
    MsgBox "请输入正确的【书籍编号】"

    End If

End Sub

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