VBA之文件筛选

在工作中，经常会碰到从一堆腐朽的source中按照一个列表去筛选出来现在还要用的source文件。

这个如果用vba来实现的话，会节省大量的时间，而且不会出错。

前提说明：

将想要复制的文件名列表放在第一sheet的第一列，然后执行程序

首先选择源目录和目标目录， 然后会从源目录中查找文件，将存在的文件自动复制的目标目录中，

不存在的文件，记录在第二列里。

Sub fileFilter()

    Dim folderOld As String
    Dim folderNew As String
    Dim fileNm As String
    Dim fileNmOld As String
    Dim fileNmNew As String
    Dim i As Integer
    Dim j As Integer
    j = 2
          
    MsgBox 'Set before moving folder'
    With Application.FileDialog(msoFileDialogFolderPicker)
        If .Show = -1 Then
            folderOld = .SelectedItems(1)
        End If
    End With
    MsgBox 'Set after moving folder'
    With Application.FileDialog(msoFileDialogFolderPicker)
        If .Show = -1 Then
            folderNew = .SelectedItems(1)
        End If
    End With
    
    For i = 1 To 1000
        fileNm = Worksheets(1).Cells(i, 1)
        If fileNm <> '' Then
            fileNmOld = folderOld & '\' & fileNm
            fileNmNew = folderNew & '\' & fileNm
            If Dir(fileNmOld) <> '' Then
                FileCopy fileNmOld, fileNmNew
            Else
                Worksheets(1).Cells(j, 2) = fileNm
                j = j + 1
            End If
        End If
    Next
    MsgBox 'file filter over'
    
End Sub

另外，vba读取文件方法备用

Sub readFile()

 Dim txtLine
 Dim FileObj
 Dim TextObj
 Dim FilePath

 With Application.FileDialog(msoFileDialogFilePicker)
    If .Show = -1 Then
        FilePath = .SelectedItems(1)
    End If
 End With

 
  Dim txt As String
     Open FilePath For Input As #1
     Do While Not EOF(1)
         Line Input #1, txt
         MsgBox txt
      Loop
     Close #1

End Sub