Excel VBA：如何从单元格中删除子串？

Question

我有一个像这样的单元格值：

This is a <"string">string, It should be <"changed">changed to <"a"> a number.

本部分重复了一些词<" ">。

我想使用Excel VBA将单元格值更改为：

This is a string, It should be changed to a number.

任何帮助将不胜感激。感谢。

Answer 1

关于使用正则表达式的建议，这是一个例子：

Option Explicit

Sub RemoveByRegexWithLateBinding()

    Dim strIn As String
    Dim strOut As String
    Dim objRegex As Object

    'input
    strIn = "This is a <""string"">string, It should be <""changed"">changed to <""a""> a number."
    Debug.Print "Input:" & vbCr & strIn

    'create and apply regex
    Set objRegex = CreateObject("VBScript.RegExp")
    objRegex.Pattern = "<""[^<>""]*"">"
    objRegex.Global = True
    strOut = objRegex.Replace(strIn, "")

    'test output
    Debug.Print "Output:" & vbCr & strOut

End Sub

生成此输出：

Input:
This is a <"string">string, It should be <"changed">changed to <"a"> a number.
Output:
This is a string, It should be changed to  a number.

正则表达式图：

可以解释为找到一个字符串：

• 以<"
开头
• 除了字符<，>和"
之外还包含其他内容
• 以">
结尾

Answer 2

假设单元格A1中的文本，则尝试此代码

Sub DelDoubleString()
Dim Text As String, Text2Replace As String, NewText As String
On Error Resume Next        'Optional, in case there's no double string to be deleted
Text = Cells(1, 1)

Do
    Text2Replace = Mid$(Text, InStr(Text, "<"), InStr(Text, ">") - InStr(Text, "<") + 1)
    NewText = Application.WorksheetFunction.Substitute(Text, Text2Replace, vbNullString)
    Text = NewText
Loop Until InStr(NewText, "<") = 0

Cells(1, 1) = NewText

End Sub

Answer 3

选择包含文字的单元格并运行此短宏：

Sub Kleanup()
    Dim d As Range, s As String, rng As Range
    Dim gather As Boolean, L As Long, DQ As String
    Dim i As Long, s2 As String, CH As String

    Set rng = Selection
    DQ = Chr(34)

    For Each r In rng
        s = Replace(r.Text, "<" & DQ, Chr(1))
        s = Replace(s, DQ & ">", Chr(2))
        gather = True
        L = Len(s)
        s2 = ""
        For i = 1 To L
            CH = Mid(s, i, 1)
            If CH = Chr(1) Then gather = False
            If CH = Chr(2) Then gather = True
            If gather And CH <> Chr(2) Then s2 = s2 & CH
        Next i
        r.Value = s2
    Next r
End Sub

Answer 4

你可以使用替换功能

ActiveSheet.Cells(1, 1).Value = Replace(ActiveSheet.Cells(1, 1).Value, "String", "Number")