VB code: How to write code to delete specified files on the computer?

What code should I use to write a VB code to delete a file on my computer?

You can take a look at the kill function:

kill deletes files from disk.

Kill pathname

The pathname parameter is a string expression used to specify a file name.

pathname can contain directories or folders, as well as drives.

illustrate

In Microsoft Windows, Kill supports multi-character (*) and single-character (?) wildcards to specify multiple files.

example:

Private Sub Command1_Click()

Kill "C:\aa.txt" 'The absolute path of the file'

End Sub

If the file is completely deleted, everyone above is right!

But if you put the file in the "Recycle Bin" instead of completely deleting it, you need to use vb

api function!

example:

In public modules:

Option Explicit

Public Const FO_MOVE = &H1

Public Const FO_COPY = &H2

Public Const FO_DELETE = &H3

Public Const FO_RENAME = &H4

Public Const FOF_NOCONFIRMATION = &H10

Public Const FOF_NOCONFIRMMKDIR = &H200

Public Const FOF_ALLOWUNDO = &H40

Type SHFILEOPSTRUCT

hWnd As Long

wFunc As Long

pFrom As String

pTo As String

fFlags As Integer

fAborted As Boolean

hNameMaps As Long

sProgress As String

End Type

Declare Function SHFileOperation Lib "shell32.dll" Alias ​​"SHFileOperationA" (lpFileOp As SHFILEOPSTRUCT) As Long

In the frm module:

Private Sub Command1_Click()

Dim SHFileOp As SHFILEOPSTRUCT

Dim Path As String, pFrom As String, i As Integer

pFrom =＂c:\aa.txt＂

SHFileOp.wFunc = FO_DELETE

SHFileOp.pFrom = pFrom

SHFileOp.fFlags = FOF_ALLOWUNDO FOF_NOCONFIRMATION

SHFileOperation SHFileOp

End Sub

I think the poster meant to put the file into the "recycle bin", so. . .

How to delete the contents of a specified line in a specified text document in vb

Dim newfile As New List(Of String)

For Each line As String In System.IO.File.ReadAllLines("TextFile1.txt")

If Not line.StartsWith(＂3＂) Then newfile.Add(line)

Next

System.IO.File.WriteAllLines("TextFile1.txt", newfile) Create a collection, use System.IO.File's ReadAllLines to read out all the contents, and judge one by one. If it is necessary to add it to the collection, if it is to be deleted Do nothing, and finally write with WriteAllLines.

Let me explain here, the above code is used to delete all text lines starting with 3.

Delete the specified file through the file name in VB

Add a FILELISTBOX control on the form and set it to invisible

Private Sub Form_Load()

On Error GoTo MyError 'Set error trap

Dim MyPath As String 'Define the directory path of the file to be deleted

Dim MyPattern As String 'Define the file type to be deleted

Dim YesterdayName, TodayName As String 'Define the file names of yesterday and today

MyPath = '＂D:\TempPath＂

MyPattern = "*.TXT" 'File name containing date, for example YYYY-MM-DD.TXT

File1.Path = MyPath

File1.Pattern = MyPattern

YesterdayName = Format(DateAdd("d", -1, Date), "YYYY-MM-DD") ".TXT" 'File name containing yesterday's date

TodayName = Format(Date$, "YYYY-MM-DD") ".TXT" 'File name containing today's date

If File1.ListCount > 0 Then

For i% = 0 To File1.ListCount - 1

File1.ListIndex = i%

If File1.FileName CurrentName And File1.FileName CurrentName Then 'If the file name is not equal to today's or yesterday's file name, delete it

Kill File1.Path ＂\＂ File1.FileName

End If

Next i%

End If

MyError:

File1.Refresh 'After all deletions are completed, refresh the list

End Sub

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