form1.frm

i did a test for study

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3675
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3675
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command1 
      Caption         =   "最高"
      Height          =   495
      Index           =   3
      Left            =   3840
      TabIndex        =   6
      Top             =   3000
      Width           =   855
   End
   Begin VB.CommandButton Command1 
      Caption         =   "后一个"
      Height          =   495
      Index           =   2
      Left            =   2880
      TabIndex        =   5
      Top             =   3000
      Width           =   855
   End
   Begin VB.CommandButton Command1 
      Caption         =   "前一个"
      Height          =   495
      Index           =   1
      Left            =   1800
      TabIndex        =   4
      Top             =   3000
      Width           =   855
   End
   Begin VB.CommandButton Command1 
      Caption         =   "新增"
      Height          =   495
      Index           =   0
      Left            =   600
      TabIndex        =   3
      Top             =   3000
      Width           =   855
   End
   Begin VB.TextBox Text3 
      Height          =   495
      Left            =   1800
      TabIndex        =   2
      Top             =   1800
      Width           =   1455
   End
   Begin VB.TextBox Text2 
      Height          =   495
      Left            =   1800
      TabIndex        =   1
      Top             =   960
      Width           =   1335
   End
   Begin VB.TextBox Text1 
      Height          =   495
      Left            =   1800
      TabIndex        =   0
      Top             =   120
      Width           =   1335
   End
   Begin VB.Label Label5 
      Caption         =   "Label5"
      Height          =   375
      Left            =   1560
      TabIndex        =   11
      Top             =   2520
      Width           =   735
   End
   Begin VB.Label Label4 
      Caption         =   "位置"
      Height          =   255
      Left            =   960
      TabIndex        =   10
      Top             =   2520
      Width           =   495
   End
   Begin VB.Label Label3 
      Caption         =   "总分"
      Height          =   255
      Left            =   1200
      TabIndex        =   9
      Top             =   1920
      Width           =   495
   End
   Begin VB.Label Label2 
      Caption         =   "专业"
      Height          =   255
      Left            =   1080
      TabIndex        =   8
      Top             =   1080
      Width           =   495
   End
   Begin VB.Label Label1 
      Caption         =   "姓名"
      Height          =   255
      Left            =   1080
      TabIndex        =   7
      Top             =   240
      Width           =   615
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim n%, i%, j%, maxi%, max%
Dim stu(1 To 100) As studtype

Private Sub Command1_Click(Index As Integer)
Select Case Index
    Case 0
      If n < 100 Then
        n = n + 1
      Else
        MsgBox "输入超限"
        End
      End If
      i = n
      With stu(i)
       .name = Text1
       .special = Text2
       .total = Val(Text3)
       End With
       Text1 = "": Text2 = "": Text3 = ""
    Case 1
      If i > 1 Then i = i - 1
       With stu(i)
      Text1 = .name
       Text2 = .special
       Text3 = .total
       End With
    Case 2
    If i < n Then i = i + 1
     With stu(i)
       Text1 = .name
       Text2 = .special
       Text3 = .total
       End With
    Case 3
    max = stu(1).total
    maxi = 1
    For j = 2 To n
      If stu(j).total > max Then
        max = stu(j).total
        maxi = j
        End If
    Next j
     With stu(maxi)
       Text1 = .name
       Text2 = .special
       Text3 = .total
       End With
    End Select
    Label5 = i & "/" & n
    
End Sub