VERSION 5.00
Begin VB.Form test 
   Caption         =   "Form1"
   ClientHeight    =   7815
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   9510
   LinkTopic       =   "Form1"
   ScaleHeight     =   7815
   ScaleWidth      =   9510
   StartUpPosition =   3  'Windows Default
   Begin VB.ListBox List2 
      Height          =   2595
      Left            =   3855
      TabIndex        =   6
      Top             =   1980
      Width           =   2310
   End
   Begin VB.CommandButton Command4 
      Caption         =   "Command4"
      Height          =   540
      Left            =   2220
      TabIndex        =   5
      Top             =   2610
      Width           =   1335
   End
   Begin VB.ListBox List1 
      Height          =   2595
      Left            =   180
      TabIndex        =   4
      Top             =   1920
      Width           =   1680
   End
   Begin VB.CommandButton Command3 
      Caption         =   "Command3"
      Height          =   540
      Left            =   3690
      TabIndex        =   3
      Top             =   1200
      Width           =   3390
   End
   Begin VB.CommandButton Command2 
      Caption         =   "Command2"
      Height          =   480
      Left            =   645
      TabIndex        =   2
      Top             =   1260
      Width           =   2430
   End
   Begin VB.CommandButton Command1 
      Caption         =   "Command1"
      Height          =   525
      Left            =   5655
      TabIndex        =   1
      Top             =   390
      Width           =   2700
   End
   Begin VB.TextBox Text1 
      Alignment       =   2  'Center
      Height          =   900
      Left            =   1590
      MultiLine       =   -1  'True
      TabIndex        =   0
      Top             =   90
      Width           =   3750
   End
End
Attribute VB_Name = "test"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Command4_Click()
Dim i As Integer
Dim str() As String

ReDim Preserve str(0) As String
str(0) = "string 0"
ReDim Preserve str(1) As String
str(1) = "string 1"
ReDim Preserve str(2) As String
str(2) = "string 2"
ReDim Preserve str(3) As String
str(3) = "string 3"
ReDim Preserve str(4) As String
str(4) = "string 4"
For i = 0 To 4
    Me.List1.AddItem str(i)
Next i

ReDim Preserve str(3) As String
' str(3) = "asdf"
For i = LBound(str) To UBound(str)
    Me.List2.AddItem str(i)
Next i

End Sub








Private Sub Command1_Click()
Dim fpath As String, fnum As Integer, str As String

    fpath = App.Path & "\tmp.txt"
    fnum = FreeFile
    Open fpath For Output As fnum
    
    str = "sadf" & vbCrLf & "new line" & vbCrLf & "asdf" & Text1.Text & vbCrLf & "finish it"
    Write #fnum, str
    
    Close #fnum
    

    fnum = FreeFile
    Open fpath For Input As fnum
    
    Input #fnum, str
        
    Close #fnum
    DoEvents
End Sub