使用FileSystemObject读写csv文件

Question

是否可以在VBA中使用FileSystemObject读写csv文件？

Answer 1

当然是这样。

基本语法，如

    Set objFSO = CreateObject("scripting.filesystemobject")
    'create a csv file
    Set objTF = objFSO.createtextfile("C:\test\myfile.csv", True, False)
    'open an existing csv file with writing ability
    Set objTF = objFSO.OpenTextFile("C:\test\myfile.csv", 8) 

将使用FSO创建/打开一个CSV。

然后，可以通过对其进行写入来修改CSV

虽然这是一个Excel示例，但您可以使用相同的技术从Outlook、Access、Word等中写入记录

Const sFilePath = "C:\test\myfile.csv"
Const strDelim = ","
Sub CreateCSV_FSO()
    Dim objFSO
    Dim objTF
    Dim ws As Worksheet
    Dim lRow As Long
    Dim lCol As Long
    Dim strTmp As String
    Dim lFnum As Long

    Set objFSO = CreateObject("scripting.filesystemobject")
    Set objTF = objFSO.createtextfile(sFilePath, True, False)

    For Each ws In ActiveWorkbook.Worksheets
        'test that sheet has been used
        Set rng1 = ws.UsedRange
        If Not rng1 Is Nothing Then
            'only multi-cell ranges can be written to a 2D array
            If rng1.Cells.Count > 1 Then
                X = ws.UsedRange.Value2
                'The code TRANSPOSES COLUMNS AND ROWS by writing strings column by column
                For lCol = 1 To UBound(X, 2)
                    'write initial value outside the loop
                    strTmp = IIf(InStr(X(1, lCol), strDelim) > 0, """" & X(1, lCol) & """", X(1, lCol))
                    For lRow = 2 To UBound(X, 1)
                        'concatenate long string & (short string with short string)
                        strTmp = strTmp & (strDelim & IIf(InStr(X(lRow, lCol), strDelim) > 0, """" & X(lRow, lCol) & """", X(lRow, lCol)))
                    Next lRow
                    'write each line to CSV
                    objTF.writeline strTmp
                Next lCol
            Else
                objTF.writeline IIf(InStr(ws.UsedRange.Value, strDelim) > 0, """" & ws.UsedRange.Value & """", ws.UsedRange.Value)
            End If
        End If
    Next ws

    objTF.Close
    Set objFSO = Nothing
    MsgBox "Done!", vbOKOnly

End Sub

Answer 2

这似乎是可能的。

FileSystemObject ( FSO )提供了访问Windows文件系统的应用程序接口，提供对文件、驱动器、文本流等的访问。FSO嵌入在微软脚本运行时中，可供独立应用程序(例如，使用Visual Basic编码)、使用VBScript或JScript的网页设计者以及使用Visual Basic Applications的Microsoft Office应用程序的用户使用。

一些参考资料：

Using The FileSystemObject With VB and VBA

How do I use FileSystemObject in VBA?