VB6.0对TXT文本文件的读写删操作把文本文件内容写到TextBox: Dim TempFile As Long Dim LoadBytes() As Byte
TempFile=FreeFile Open 文件名 For Binary As #TempFile Redim LoadBytes(1 To Lof(TempFile)) As Byte Get #TempFile,,LoadBytes Close TempFile
Text1.Text=StrConv(LoadBytes,vbUniCode)
把TextBox内容写入文本文件: Dim TempFile As Long Dim SaveBytes() As Byte
SaveBytes=StrConv(Text1.Text,vbFromUniCode)
TempFile=FreeFile Open 文件名 For Binary As #TempFile Put #TempFile,,SaveBytes Close TempFile 删除TXT文件里的内容: Private Function DelLine(strFile As String, RLine As Long, newFile As String, SameLine As Boolean) Dim s As String, n As String, i As Long i = 1'//打开源文件 Open strFile For Input As #1 Do Until EOF(1) Line Input #1, s If RLine = i Then '如果是指定的行数就进行下面的操作If SameLine = True Then '是否保持源文件行数不变(以空白字符替换这一行内容)的提示,True保持源文件的行数,False为直接删除这一行的内容 s = "" n = n & s & vbCrLf '将空字符串赋给变量n,以保持源文件的行数 ' MsgBox strFile & " 文件中,第 " & RLine & " 行内容" & vbCrLf & s & vbCrLf & "已经删除", vbInformation, "消息提示" End If ' s="也可以把这一行的内容改成自己需要的" Else '如果不是指定的行数,就将s的内容赋给变量n 以存储数据 n = n & s & vbCrLf '将s的内容赋给n 并以一个回车符号结束.... End If i = i + 1 Loop Close #1 '//写入新文件,如果和源文件同名则会覆盖源文件 Open newFile For Output As #2 Print #2, n '将n变量里的数据写入新文件 Close #2End Function
Dim TempFile As Long
Dim LoadBytes() As Byte
TempFile=FreeFile
Open 文件名 For Binary As #TempFile
Redim LoadBytes(1 To Lof(TempFile)) As Byte
Get #TempFile,,LoadBytes
Close TempFile
Text1.Text=StrConv(LoadBytes,vbUniCode)
把TextBox内容写入文本文件:
Dim TempFile As Long
Dim SaveBytes() As Byte
SaveBytes=StrConv(Text1.Text,vbFromUniCode)
TempFile=FreeFile
Open 文件名 For Binary As #TempFile
Put #TempFile,,SaveBytes
Close TempFile
删除TXT文件里的内容:
Private Function DelLine(strFile As String, RLine As Long, newFile As String, SameLine As Boolean)
Dim s As String, n As String, i As Long
i = 1'//打开源文件
Open strFile For Input As #1
Do Until EOF(1)
Line Input #1, s
If RLine = i Then '如果是指定的行数就进行下面的操作If SameLine = True Then '是否保持源文件行数不变(以空白字符替换这一行内容)的提示,True保持源文件的行数,False为直接删除这一行的内容
s = ""
n = n & s & vbCrLf '将空字符串赋给变量n,以保持源文件的行数
' MsgBox strFile & " 文件中,第 " & RLine & " 行内容" & vbCrLf & s & vbCrLf & "已经删除", vbInformation, "消息提示"
End If
' s="也可以把这一行的内容改成自己需要的" Else '如果不是指定的行数,就将s的内容赋给变量n 以存储数据
n = n & s & vbCrLf '将s的内容赋给n 并以一个回车符号结束....
End If
i = i + 1
Loop
Close #1 '//写入新文件,如果和源文件同名则会覆盖源文件
Open newFile For Output As #2
Print #2, n '将n变量里的数据写入新文件
Close #2End Function