初学VB求代码 - 程序供求

李思思

等　级：新手上路
帖　子：1
专家分：0
注　册：2013-7-1
结帖率：0

楼主

已结贴√ 问题点数：20 回复次数：3

初学VB求代码

六.学生管理系统 **
对学生的基本信息进行管理,具备输入,修改,查询功能.
具体要求:
1.    学生信息包含,姓名,性别,年龄,籍贯,学号,班级,院系.
2.    性别（checkbox）,班级（列表框）,院系（组合框）实现,不能使用text输入.
3.    输入任意个学生信息,使用动态数组保存
4.    学生信息使用结构定义.
5.    能够添加,删除,浏览学生信息.操作功能通过菜单,工具栏,高级界面设计,并添加事件响应
6.    最后将所有的学生信息使用函数保存到文件中。
课程设计题不会做，求大神指点！

2013-07-01 12:55

风吹过b

等　级：贵宾
威　望：364
帖　子：4940
专家分：30047
注　册：2008-10-15

第 3 楼

得分:7

问题是：最近没事，已顺手写了。
论坛里用文件操作的感觉比较少。

所有的数据都是使用的文本类型，是为了跟TXT文件兼容而故意的。
其实应该把某个字段定义为 long 类型。

把以下内容复制到记事本里，然后保存为后缀为 FRM 的文件。

VERSION 5.00
Begin VB.Form Form1
   Caption         =   "Form1"
   ClientHeight    =   1995
   ClientLeft      =   120
   ClientTop       =   450
   ClientWidth     =   6135
   LinkTopic       =   "Form1"
   ScaleHeight     =   1995
   ScaleWidth      =   6135
   StartUpPosition =   3  '窗口缺省
   Begin Command9
      Caption         =   "删除"
      Height          =   375
      Left            =   4800
      TabIndex        =   23
      Top             =   1440
      Width           =   495
   End
   Begin Command8
      Caption         =   "关闭"
      Height          =   375
      Left            =   5400
      TabIndex        =   22
      Top             =   1440
      Width           =   615
   End
   Begin Command7
      Caption         =   "还原"
      Height          =   375
      Left            =   4080
      TabIndex        =   21
      Top             =   1440
      Width           =   615
   End
   Begin Command6
      Caption         =   "新增"
      Height          =   375
      Left            =   3360
      TabIndex        =   20
      Top             =   1440
      Width           =   615
   End
   Begin Command5
      Caption         =   "保存"
      Height          =   375
      Left            =   2640
      TabIndex        =   19
      Top             =   1440
      Width           =   615
   End
   Begin Command4
      Caption         =   ">|"
      Height          =   375
      Left            =   2160
      TabIndex        =   18
      Top             =   1440
      Width           =   375
   End
   Begin Command3
      Caption         =   ">"
      Height          =   375
      Left            =   1800
      TabIndex        =   17
      Top             =   1440
      Width           =   375
   End
   Begin Command2
      Caption         =   "<"
      Height          =   375
      Left            =   600
      TabIndex        =   15
      Top             =   1440
      Width           =   375
   End
   Begin Command1
      Caption         =   "|<"
      Height          =   375
      Left            =   240
      TabIndex        =   14
      Top             =   1440
      Width           =   375
   End
   Begin Combo1
      Height          =   300
      Left            =   4920
      Style           =   2  'Dropdown List
      TabIndex        =   13
      Top             =   240
      Width           =   1095
   End
   Begin VB.TextBox Text7
      Height          =   270
      Left            =   840
      TabIndex        =   12
      Top             =   960
      Width           =   5175
   End
   Begin VB.TextBox Text6
      Height          =   270
      Left            =   4920
      TabIndex        =   10
      Top             =   600
      Width           =   1095
   End
   Begin VB.TextBox Text5
      Height          =   270
      Left            =   2880
      TabIndex        =   8
      Top             =   600
      Width           =   1095
   End
   Begin VB.TextBox Text4
      Height          =   270
      Left            =   840
      TabIndex        =   6
      Top             =   600
      Width           =   1095
   End
   Begin VB.TextBox Text2
      Height          =   270
      Left            =   2880
      TabIndex        =   3
      Top             =   240
      Width           =   1095
   End
   Begin VB.TextBox Text1
      Height          =   270
      Left            =   840
      TabIndex        =   1
      Top             =   240
      Width           =   1095
   End
   Begin VB.Label Label8
      Alignment       =   2  'Center
      Appearance      =   0  'Flat
      BackColor       =   &H80000005&
      BorderStyle     =   1  'Fixed Single
      Caption         =   "Label8"
      ForeColor       =   &H80000008&
      Height          =   375
      Left            =   960
      TabIndex        =   16
      Top             =   1440
      Width           =   855
   End
   Begin VB.Label Label7
      Caption         =   "籍贯："
      Height          =   255
      Left            =   120
      TabIndex        =   11
      Top             =   960
      Width           =   735
   End
   Begin VB.Label Label6
      Caption         =   "班级："
      Height          =   255
      Left            =   4320
      TabIndex        =   9
      Top             =   600
      Width           =   735
   End
   Begin VB.Label Label5
      Caption         =   "院系："
      Height          =   255
      Left            =   2280
      TabIndex        =   7
      Top             =   600
      Width           =   735
   End
   Begin VB.Label Label4
      Caption         =   "年龄："
      Height          =   255
      Left            =   120
      TabIndex        =   5
      Top             =   600
      Width           =   735
   End
   Begin VB.Label Label3
      Caption         =   "性别："
      Height          =   255
      Left            =   4320
      TabIndex        =   4
      Top             =   240
      Width           =   735
   End
   Begin VB.Label Label2
      Caption         =   "姓名："
      Height          =   255
      Left            =   2280
      TabIndex        =   2
      Top             =   240
      Width           =   735
   End
   Begin VB.Label Label1
      Caption         =   "学号："
      Height          =   255
      Left            =   120
      TabIndex        =   0
      Top             =   240
      Width           =   735
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Type 学生信息类型
    学号 As String * 6
    姓名 As String * 5
    性别 As String * 1
    年龄 As String * 3
    院系 As String * 8
    班级 As String * 8
    籍贯 As String * 60
    分隔符 As String * 2
End Type

Private Const DataFile = "Data.txt"

Private 记录号 As Long
Private 记录数 As Long
Private 性别数组(1 To 3) As String

Private Sub Command1_Click()
    Call view(1)
End Sub

Private Sub Command2_Click()
    Call view(记录号 - 1)
End Sub

Private Sub Command3_Click()
    Call view(记录号 + 1)

End Sub

Private Sub Command4_Click()
    Call view(9999999)
End Sub

Private Sub Command5_Click()
    Call save(记录号)
End Sub

Private Sub Command6_Click()
    Call save(0)

End Sub

Private Sub Command7_Click()
    Call view(记录号)
End Sub

Private Sub Command8_Click()

Unload Me

End Sub

Private Sub Command9_Click()
    Call del(记录号)
End Sub

Private Sub Form_Load()

Dim i As Long

性别数组(1) = "男"
性别数组(2) = "女"
性别数组(3) = " "

For i = 1 To 3
    Combo1.AddItem 性别数组(i)
Next i

Dim fr As Long
Dim o As 学生信息类型
fr = FreeFile

Open DataFile For Random As #fr Len = Len(o)
    i = LOF(fr) / Len(o)
    记录数 = i
    记录号 = 1

    Label8.Caption = 记录号 & " / " & 记录数

Close #fr

Call view(1)

End Sub

Public Function 加空格(cs1 As String, cs2 As Long) As String
'在尾加空格
Dim tmpb() As Byte, m As Long
tmpb = StrConv(cs1, vbFromUnicode)
m = cs2 - UBound(tmpb)
If m > 0 Then
    加空格 = cs1 & Space(m)
Else
    加空格 = cs1
End If

End Function

Public Sub view(cs As Long)
Dim fr As Long
Dim o As 学生信息类型
fr = FreeFile
Dim i As Long

If cs < 1 Then cs = 1

Open DataFile For Random As #fr Len = Len(o)
    i = LOF(fr) / Len(o)
    If cs > i Then cs = i

    Get #fr, cs, o
    记录号 = cs

Close #fr

Text1.Text = o.学号
Text2.Text = o.姓名
Combo1.ListIndex = Val(o.性别) - 1
Text4.Text = o.年龄
Text5.Text = o.院系
Text6.Text = o.班级
Text7.Text = o.籍贯

    Label8.Caption = 记录号 & " / " & 记录数

End Sub

Public Sub save(Optional cs As Long = 0)

Dim fr As Long
Dim o As 学生信息类型
fr = FreeFile
Dim i As Long

o.学号 = Text1.Text
o.姓名 = Text2.Text
o.性别 = Combo1.ListIndex + 1
o.年龄 = Text4.Text
o.院系 = Text5.Text
o.班级 = Text6.Text
o.籍贯 = Text7.Text
o.分隔符 = vbCrLf

Open DataFile For Random As #fr Len = Len(o)
    i = LOF(fr) / Len(o)
    If cs = 0 Then
        cs = i + 1
        记录号 = cs
        记录数 = cs
    End If
    If cs > i Then
        cs = i + 1
        记录号 = cs
        记录数 = cs
    End If

    Put #fr, cs, o

Close #fr
    Label8.Caption = 记录号 & " / " & 记录数

End Sub

Public Sub del(cs As Long)
Dim fr As Long, fr2 As Long
Dim o As 学生信息类型
Dim i As Long, j As Long

fr = FreeFile
Open DataFile For Random As #fr Len = Len(o)
    i = LOF(fr) / Len(o)
fr2 = FreeFile

Open "tmp.tmp" For Random As #fr2 Len = Len(o)
    For j = 1 To i
        Get #fr, j, o
        If j <> cs Then
            Put #fr2, , o
        End If
    Next j
Close #fr2

Close #fr
Kill DataFile
Name "tmp.tmp" As DataFile

记录数 = i - 1
Call view(记录号)

End Sub

[ 本帖最后由风吹过b 于 2013-7-1 22:13 编辑 ]

授人于鱼，不如授人于渔
早已停用QQ了

2013-07-01 22:12