删除除Excel中第一个单词以外的特定字母开头的所有单词的第一个字符

时间:2018-01-26 12:09:34

标签: excel string vba excel-vba user-defined-functions

我正在尝试构建一个UDF,它将查看一个单元格并删除以字母开头的所有单词的第一个字符" El" 除了第一个单词。

单元格A1中的值为:

El agua,El asma,El arca,Elhambre,El aguila,Elements

在将调用UDF函数的单元格B1中,我希望结果为:

El agua,l asma,l arca,lhambre,l aguila,lements

我的代码如下:

    Function exceptFirst(MyString As String)
    Dim X As Long
    Dim Tempstr As String
    Tempstr = ""
    For X = 1 To Len(MyString)
        If Mid(MyString, X, 2) = "El" Then

            Tempstr = Tempstr

        Else

            Tempstr = Tempstr & Mid(MyString, X, 1)


        End If
    Next
    exceptFirst = Tempstr
    End Function

代码正在执行删除所有" E "的单词开头" EL"但第一个单词排除 第一次 出现次数。 非常感谢您的帮助,并提前致谢。

4 个答案:

答案 0 :(得分:3)

另一个UDF,使用Split& Join

Option Explicit
Option Compare Binary 'to ensure case sensitive
Function exceptFirst(S As String) As String
    Dim V As Variant
    Dim I As Long
    Dim bFirst As Boolean

bFirst = False
V = Split(S, ", ")

For I = LBound(V) To UBound(V)
    Select Case bFirst
        Case False
            If V(I) Like "El*" Then bFirst = True
        Case True
            If V(I) Like "El*" Then V(I) = Mid(V(I), 2)
    End Select
Next I

exceptFirst = Join(V, ", ")

End Function

编辑我假设您希望 El 区分大小写,无论是替换还是检测哪个是第一个实例。如果不是这种情况,只需将Option Compare语句从Binary更改为Text

答案 1 :(得分:1)

建议Patrick,您可以使用Split函数来实现所需的输出...

Function exceptFirst(ByVal MyString As String) As String
Dim i As Long
Dim Tempstr As String
Dim str() As String

str() = Split(MyString, ", ")

Tempstr = str(0)
For i = 1 To UBound(str)
    If LCase(Left(str(i), 2)) = "el" Then
        Tempstr = Tempstr & ", " & Right(str(i), Len(str(i)) - 1)
    Else
        Tempstr = Tempstr & ", " & str(i)
    End If
Next i
exceptFirst = Tempstr
End Function

答案 2 :(得分:0)

这是我设法建立的,使用您提供的样本:

Option Explicit

Function exceptFirst(MyString As String) As String

    Dim varArr      As Variant
    Dim cnt         As Long
    Dim result      As String

    varArr = Split(MyString, ", ")

    For cnt = LBound(varArr) To UBound(varArr)
        If cnt > 0 Then
            If UCase(Left(varArr(cnt), 2)) = "EL" Then
                result = result & Right(varArr(cnt), Len(varArr(cnt)) - 1) & ", "
            Else
                result = result & varArr(cnt) & ", "
            End If
        Else
            result = varArr(0) & ", "
        End If
    Next cnt

    exceptFirst = Left(result, Len(result) - 2)

End Function

Public Sub TestMe()

    Debug.Print exceptFirst("El agua, El asma, Elhambre, El aguila, cska, Elements")

End Sub

它滥用了Left()Right()的用法,但代码几乎提供了所需的内容。棘手的部分是它被,剥离并在循环上将其添加回来。在代码的最后,当它返回字符串时,它会删除最后一个逗号和空格:exceptFirst = Left(result, Len(result) - 2)

答案 3 :(得分:0)

regex

Sub RegexTest()
    Dim strInput As String, strPat As String
    Dim rX As New RegExp

    strPat = "(?:\s)(e)(?=l)"
    strInput = "El agua, Elhambre, El sol, elanore, bella"
    Debug.Print "Input: " & strInput
    Debug.Print "Expected output: El agua, lhambre, l sol, lanore, bella"

    With rX
        .Global = True
        .MultiLine = True
        .IgnoreCase = True
        .Pattern = strPat
    End With

    Debug.Print "Output: " & rX.Replace(strInput, " ")
End Sub

哪个应该给你

Input:           El agua, Elhambre, El sol, elanore, bella    
Expected output: El agua, lhambre, l sol, lanore, bella   
Output:          El agua, lhambre, l sol, lanore, bella

模式可以改进 - 我不知道为什么它在e之前捕获空间,当它在非捕获组中时...但在这种情况下,黑客是插入一个空格在replace

期间