Excel 2010 VBA - 按逗号拆分字符串，跳过空白结果

Question

我正在使用以下代码来分割一列以逗号分隔的列表并在新行中返回每个条目：

Sub SliceNDice()
    '
    ' Splits the locations cells according to commas and pushes to new rows
    ' Code courtesy of brettdj (http://stackoverflow.com/questions/8560718/split-comma-separated-entries-to-new-rows)
    '
    Dim objRegex As Object
    Dim x
    Dim Y
    Dim lngRow As Long
    Dim lngCnt As Long
    Dim tempArr() As String
    Dim strArr
    Set objRegex = CreateObject("vbscript.regexp")

    objRegex.Pattern = "^\s+(.+?)$"
     'Define the range to be analysed
    x = Range([a1], Cells(Rows.Count, "c").End(xlUp)).Value2
    ReDim Y(1 To 3, 1 To 1000)
    For lngRow = 1 To UBound(x, 1)
         'Split each string by ","
        tempArr = Split(x(lngRow, 3), ",")
        For Each strArr In tempArr
            lngCnt = lngCnt + 1
             'Add another 1000 records to resorted array every 1000 records
            If lngCnt Mod 1000 = 0 Then ReDim Preserve Y(1 To 3, 1 To lngCnt + 1000)
            Y(1, lngCnt) = x(lngRow, 1)
            Y(2, lngCnt) = x(lngRow, 2)
            Y(3, lngCnt) = objRegex.Replace(strArr, "$1")
        Next
    Next lngRow
     'Dump the re-ordered range to columns E:G
    [e1].Resize(lngCnt, 3).Value2 = Application.Transpose(Y)

End Sub

虽然这段代码运行良好，但它有一个致命的缺陷，即 C 列单元格中的任何双逗号都会导致空白单元格被推送到 G 列的新行。

有谁知道如何编辑代码，以便它不会在 G 列中创建带有空单元格的新行，而是跳过它们并在它们的位置输入下一行，就好像多余的逗号从未包含在 C 列中一样？

Answer 1

只需测试 strArr 的字符串长度作为 For Each strArr In tempArr 循环中的第一个操作。

For Each strArr In tempArr
    If CBool(Len(strArr)) Then
        lngCnt = lngCnt + 1
         'Add another 1000 records to resorted array every 1000 records
        If lngCnt Mod 1000 = 0 Then ReDim Preserve Y(1 To 3, 1 To lngCnt + 1000)
        Y(1, lngCnt) = x(lngRow, 1)
        Y(2, lngCnt) = x(lngRow, 2)
        Y(3, lngCnt) = objRegex.Replace(strArr, "$1")
    End If
Next strArr

Answer 2

您可以循环出现双逗号来清理输入而不是修复输出，这是一个工作示例：

A1 中的文本： Hello,,World,This,,Is,,,,,,,A,,Test

Sub TestString()
Dim MyString As String
MyString = Range("A1").Text
Do Until Len(MyString) = Len(Replace(MyString, ",,", ","))
    MyString = Replace(MyString, ",,", ",")
Loop
MsgBox MyString
End Sub

你会在分裂之前这样做

如果您希望将其作为函数（在您的情况下会更好），请执行以下操作：

Function FixDoubleComma(MyString As String)
Do Until Len(MyString) = Len(Replace(MyString, ",,", ","))
    MyString = Replace(MyString, ",,", ",")
Loop
FixDoubleComma = MyString
End Function

然后在您的代码中替换它：

tempArr = Split(x(lngRow, 3), ",")

有了这个：

tempArr = Split(FixDoubleComma(x(lngRow, 3)), ",")

Answer 3

我有一个小样本可以解决任何地方的空白

Sub RemoveBlanks()
    Dim mystr As String
    Dim arrWithBlanks() As String
    Dim arrNoBlanks() As String
    Dim i As Integer
    mystr = ",tom,jerry, ,,spike,," 'Blanks everywhere (beginning, middle and end)
    arrWithBlanks = Split(mystr, ",")
    ReDim arrNoBlanks(0 To 0)
    Debug.Print "Array with blanks:"
    'Loop through the array with blanks
    For i = LBound(arrWithBlanks) To UBound(arrWithBlanks)
        'Check if there is a blank (or element with spaces only)
        If Trim(arrWithBlanks(i)) = "" Then
            Debug.Print i & " (blank)"
        Else
            Debug.Print i & " " & arrWithBlanks(i)
            If arrNoBlanks(UBound(arrNoBlanks)) <> "" Then ReDim Preserve arrNoBlanks(0 To UBound(arrNoBlanks) + 1)
            arrNoBlanks(UBound(arrNoBlanks)) = arrWithBlanks(i)
        End If
    Next i
    Debug.Print "Array with NO blanks:"
    For i = LBound(arrNoBlanks) To UBound(arrNoBlanks)
        Debug.Print i & " " & arrNoBlanks(i)
    Next i
End Sub

所有内容都将显示在即时窗口中（按Ctrl + G显示）

结果将如下所示：

Array with blanks:  
0 (blank)
1 tom
2 jerry
3 (blank)
4 (blank)
5 spike
6 (blank)
7 (blank)
Array with NO blanks:
0 tom
1 jerry
2 spike