左函数和右函数在我的VBA代码中不工作，需要数组吗？

当我在Excel中运行这段代码时，它表示左边的函数需要一个数组。我给它传递一个字符串，函数需要一个字符串，变量声明为字符串。我把$operator放在那里，它仍然让我觉得很糟糕。知道会发生什么吗

FWIW当我通过SolidWorks运行它时，它执行得很好

另外，它是从传递字符串的userform调用的

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请尝试下面的代码，它的工作

Option Explicit

 '32-bit API declarations
Declare Function SHGetPathFromIDList Lib "shell32.dll" _
Alias "SHGetPathFromIDListA" (ByVal pidl As Long, ByVal _
pszpath As String) As Long

Declare Function SHBrowseForFolder Lib "shell32.dll" _
Alias "SHBrowseForFolderA" (lpBrowseInfo As BrowseInfo) _
As Long

Public Type BrowseInfo
    hOwner As Long
    pIDLRoot As Long
    pszDisplayName As String
    lpszTitle As String
    ulFlags As Long
    lpfn As Long
    lParam As Long
    iImage As Long
End Type

Function GetDirectory(Optional msg) As String
    On Error Resume Next
    Dim bInfo As BrowseInfo
    Dim path As String
    Dim r As Long, x As Long, pos As Integer

     'Root folder = Desktop
    bInfo.pIDLRoot = 0&

     'Title in the dialog
    If IsMissing(msg) Then
        bInfo.lpszTitle = "Please select the folder of the excel files to copy."
    Else
        bInfo.lpszTitle = msg
    End If

     'Type of directory to return
    bInfo.ulFlags = &H1

     'Display the dialog
    x = SHBrowseForFolder(bInfo)

     'Parse the result
    path = Space$(512)
    r = SHGetPathFromIDList(ByVal x, ByVal path)
    If r Then
        pos = InStr(path, Chr$(0))
        GetDirectory = Left(path, pos - 1)
    Else
        GetDirectory = ""
    End If
End Function

Sub CombineFiles()
    Dim path            As String
    Dim FileName        As String
    Dim LastCell        As Range
    Dim Wkb             As Workbook
    Dim WS              As Worksheet
    Dim ThisWB          As String

    ThisWB = ThisWorkbook.Name
    Application.EnableEvents = False
    Application.ScreenUpdating = False
    path = GetDirectory
    FileName = Dir(path & "\*.xls", vbNormal)
    Do Until FileName = ""
        If FileName <> ThisWB Then
            Set Wkb = Workbooks.Open(FileName:=path & "\" & FileName)
            For Each WS In Wkb.Worksheets
                Set LastCell = WS.Cells.SpecialCells(xlCellTypeLastCell)
                If LastCell.Value = "" And LastCell.Address = Range("$A$1").Address Then
                Else
                    WS.Copy After:=ThisWorkbook.Sheets(ThisWorkbook.Sheets.Count)
                End If
            Next WS
            Wkb.Close False
        End If
        FileName = Dir()
    Loop
    Application.EnableEvents = True
    Application.ScreenUpdating = True

    Set Wkb = Nothing
    Set LastCell = Nothing
End Sub

---

我构建了一个宏VBA 7.-0。测试了您的代码，通过一个按钮从一个新表单运行良好。代码行：MsgBoxGetDirectoryyes@Jerez这是一个导入的模块，我从一个Solidworks宏中获得，我在谷歌搜索了几天后拼凑而成。如果我只是复制和粘贴代码而不是使用导入的模块，你认为这会解决我的问题吗？导入的模块的名称是什么？@SiddharthRout它叫GetDirectoryAPI，它是SolidWorks宏的一部分。Solidworks运行得很好，我只是尝试从外部设计表的excel中运行它。最终，这将是一个更大的项目的一部分，该项目将从现有数据库中创建成吨的部件，但现在我只是想解决我的字符串切片问题。@Jerez我做了一个测试，并运行了与您相同的代码行，得到了与您相同的错误。高亮显示黄色的GetDirectory函数，然后高亮显示左侧函数，就像我要复制和粘贴它一样，并显示“错误编译错误预期数组”对话框。

Option Explicit

 '32-bit API declarations
Declare Function SHGetPathFromIDList Lib "shell32.dll" _
Alias "SHGetPathFromIDListA" (ByVal pidl As Long, ByVal _
pszpath As String) As Long

Declare Function SHBrowseForFolder Lib "shell32.dll" _
Alias "SHBrowseForFolderA" (lpBrowseInfo As BrowseInfo) _
As Long

Public Type BrowseInfo
    hOwner As Long
    pIDLRoot As Long
    pszDisplayName As String
    lpszTitle As String
    ulFlags As Long
    lpfn As Long
    lParam As Long
    iImage As Long
End Type

Function GetDirectory(Optional msg) As String
    On Error Resume Next
    Dim bInfo As BrowseInfo
    Dim path As String
    Dim r As Long, x As Long, pos As Integer

     'Root folder = Desktop
    bInfo.pIDLRoot = 0&

     'Title in the dialog
    If IsMissing(msg) Then
        bInfo.lpszTitle = "Please select the folder of the excel files to copy."
    Else
        bInfo.lpszTitle = msg
    End If

     'Type of directory to return
    bInfo.ulFlags = &H1

     'Display the dialog
    x = SHBrowseForFolder(bInfo)

     'Parse the result
    path = Space$(512)
    r = SHGetPathFromIDList(ByVal x, ByVal path)
    If r Then
        pos = InStr(path, Chr$(0))
        GetDirectory = Left(path, pos - 1)
    Else
        GetDirectory = ""
    End If
End Function

Sub CombineFiles()
    Dim path            As String
    Dim FileName        As String
    Dim LastCell        As Range
    Dim Wkb             As Workbook
    Dim WS              As Worksheet
    Dim ThisWB          As String

    ThisWB = ThisWorkbook.Name
    Application.EnableEvents = False
    Application.ScreenUpdating = False
    path = GetDirectory
    FileName = Dir(path & "\*.xls", vbNormal)
    Do Until FileName = ""
        If FileName <> ThisWB Then
            Set Wkb = Workbooks.Open(FileName:=path & "\" & FileName)
            For Each WS In Wkb.Worksheets
                Set LastCell = WS.Cells.SpecialCells(xlCellTypeLastCell)
                If LastCell.Value = "" And LastCell.Address = Range("$A$1").Address Then
                Else
                    WS.Copy After:=ThisWorkbook.Sheets(ThisWorkbook.Sheets.Count)
                End If
            Next WS
            Wkb.Close False
        End If
        FileName = Dir()
    Loop
    Application.EnableEvents = True
    Application.ScreenUpdating = True

    Set Wkb = Nothing
    Set LastCell = Nothing
End Sub