string - Excel VBA - 删除字符串内容最多 *word*

Question

我正在尝试删除字符串内容，直到字符串中包含的某个单词。例如

"Emily has wild flowers. They are red and blue."

我想使用 VBA 来替换它

"They are red and blue."

即删除“他们”之前的所有内容。我不知道字符串内容和其中包含的字符数。

我不知道该怎么做，非常感谢您的帮助！

Answer 1

干得好：

Dim s As String
s = "Emily has wild flowers. They are red and blue."

Dim indexOfThey As Integer

indexOfThey = InStr(1, s, "They")


Dim finalString As String
finalString = Right(s, Len(s) - indexOfThey + 1)

Answer 2

删除字符串中值之前的所有文本的简单示例。

Sub Foo()
    Dim strOrig As String
    Dim strReplace As String
    strOrig = "The Quick brown fox jumped over the lazy dogs"
    strReplace = "jumped"

    MsgBox (DropTextBefore(strOrig, strReplace))

End Sub

Public Function DropTextBefore(strOrigin As String, strFind As String)
    Dim strOut As String
    Dim intFindPosition As Integer
    'case insensitive search
    'could made it so that case sensitivity is a parameter but this gets the idea across.
    If strOrigin <> "" And strFind <> "" Then
        intFindPosition = InStr(UCase(strOrigin), UCase(strFind))
        strOut = Right(strOrigin, Len(strOrigin) - (intFindPosition + Len(strFind) - 1))
    Else
      strOut = "Error Empty Parameter in function call was encountered."
    End If
    DropTextBefore = strOut
End Function

Answer 3

如果这个词是固定的，比如上面例子中的“他们”，你可以简单地做

1. CTRL + H（替换）
2. *他们（你的话加星）

在查找框中。星号 * 是一个通配符，它​​可以被称为 - 在单词之前或之后（如果添加在末尾）的任何内容。

小心：当你在同一个单元格中有重复的单词时要小心。

Answer 4

这对我很有用：

Sub remove_until()

Dim i, lrowA, remChar As Long
Dim mString As String

lrowA = ActiveSheet.Cells(Rows.Count, 1).End(xlUp).Row

For i = 1 To lrowA

mString = Cells(i, 1).Value


    If InStr(mString, "They") > 0 Then

    remChar = Len(mString) - InStr(mString, "They") + 1

    Cells(i, 2).Value = Left(mString, Len(mString) - remChar)

    End If


Next

End Sub