例8.8.frm

一本学习Visual Basic编程的好书

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Type numval
    squre As Integer
    cube As Long
    sqroot As Single
End Type
Dim nv As numval              '定义一个numval类型的变量nu
Private Sub Form_Load()
    Open "data1.dat" For Random As #1 Len = Len(nv)
    For i = 1 To 10               '写入记录程序段
        nv.squre = i * i
        nv.cube = i * i * i
        nv.sqroot = Sqr(i)
        Put #1, i, nv
    Next i
    Show                          '读出记录程序段
    For i = 2 To 10 Step 4        '读出3个记录
        Get #1, i, nv
        Print "第"; i; "号记录:", nv.squre, nv.cube, nv.sqroot
    Next i
    Close #1
End Sub