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如何比較兩個字符串的相似性或突出顯示Excel中的差異？

在某些情況下，您可能只需要比較兩個相鄰的字符串單元格並在Excel中標記它們的相似性或差異。 本文為您提供了兩種實現方法。

用公式比較兩個字符串
比較兩個字符串的相似性或使用VBA代碼突出顯示差異

用公式比較兩個字符串

如下面的屏幕截圖所示，如果您只想知道比較的字符串是否匹配，則可以應用以下公式。

1.選擇一個空白單元格C2，輸入公式 = EXACT（A2，B2） 進入公式欄，然後按Enter鍵。 看截圖：

備註：在公式中，A2和B2是包含比較字符串的單元格。

2.繼續選擇結果單元格，然後將“填充手柄”拖動到單元格，直到獲得所有比較的結果。

FALSE結果表示比較的字符串不同，TRUE結果表示兩個比較的字符串匹配。 看截圖：

比較兩個字符串的相似性或使用VBA代碼突出顯示差異

如果要比較兩個字符串並突出顯示它們之間的相似性或差異。 以下VBA代碼可以為您提供幫助。

1。 按 其他 + F11 同時打開 Microsoft Visual Basic for Applications 窗口。

2。 在裡面 Microsoft Visual Basic for Applications 窗口中，單擊 插入 > 模塊。 然後將以下代碼複製並粘貼到“代碼”窗口中。

VBA代碼：比較兩個列字符串的相似性或突出顯示差異

Sub highlight()
    Dim xRg1 As Range
    Dim xRg2 As Range
    Dim xTxt As String
    Dim xCell1 As Range
    Dim xCell2 As Range
    Dim I As Long
    Dim J As Integer
    Dim xLen As Integer
    Dim xDiffs As Boolean
    On Error Resume Next
    If ActiveWindow.RangeSelection.Count > 1 Then
      xTxt = ActiveWindow.RangeSelection.AddressLocal
    Else
      xTxt = ActiveSheet.UsedRange.AddressLocal
    End If
lOne:
    Set xRg1 = Application.InputBox("Range A:", "Kutools for Excel", xTxt, , , , , 8)
    If xRg1 Is Nothing Then Exit Sub
    If xRg1.Columns.Count > 1 Or xRg1.Areas.Count > 1 Then
        MsgBox "Multiple ranges or columns have been selected ", vbInformation, "Kutools for Excel"
        GoTo lOne
    End If
lTwo:
    Set xRg2 = Application.InputBox("Range B:", "Kutools for Excel", "", , , , , 8)
    If xRg2 Is Nothing Then Exit Sub
    If xRg2.Columns.Count > 1 Or xRg2.Areas.Count > 1 Then
        MsgBox "Multiple ranges or columns have been selected ", vbInformation, "Kutools for Excel"
        GoTo lTwo
    End If
    If xRg1.CountLarge <> xRg2.CountLarge Then
       MsgBox "Two selected ranges must have the same numbers of cells ", vbInformation, "Kutools for Excel"
       GoTo lTwo
    End If
    xDiffs = (MsgBox("Click Yes to highlight similarities, click No to highlight differences ", vbYesNo + vbQuestion, "Kutools for Excel") = vbNo)
    Application.ScreenUpdating = False
    xRg2.Font.ColorIndex = xlAutomatic
    For I = 1 To xRg1.Count
        Set xCell1 = xRg1.Cells(I)
        Set xCell2 = xRg2.Cells(I)
        If xCell1.Value2 = xCell2.Value2 Then
            If Not xDiffs Then xCell2.Font.Color = vbRed
        Else
            xLen = Len(xCell1.Value2)
            For J = 1 To xLen
                If Not xCell1.Characters(J, 1).Text = xCell2.Characters(J, 1).Text Then Exit For
            Next J
            If Not xDiffs Then
                If J <= Len(xCell2.Value2) And J > 1 Then
                    xCell2.Characters(1, J - 1).Font.Color = vbRed
                End If
            Else
                If J <= Len(xCell2.Value2) Then
                    xCell2.Characters(J, Len(xCell2.Value2) - J + 1).Font.Color = vbRed
                End If
            End If
        End If
    Next
    Application.ScreenUpdating = True
End Sub

3。 按 F5 鍵來運行代碼。 在第一 Excel的Kutools 對話框中，選擇需要比較的文本字符串的第一列，然後單擊 OK 按鈕。

4.然後第二 Excel的Kutools 對話框彈出，請選擇第二列字符串，然後單擊 OK 按鈕。

5.最後 Excel的Kutools 對話框中，如果要比較字符串的相似性，請單擊 是 按鈕。 並突出顯示比較字符串的差異，請單擊 沒有 按鈕。 看截圖：

然後您可以看到比較結果，如下圖所示。

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Comments (21)
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Sandy
Sandy
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Is there an idiot's guide to Kutools anywhere?
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crystal
crystal     Sandy
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Hi Sandy,

You can find the guide for each Kutools feature on this page: Kutools for Excel All Features Tutorial
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Lala
Lala
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Hi,
How can i edit the code such that it will compare 2 columns and highlight the differences in both columns?
Eg:
Column 1
A1,A2,A3,A4: Highlight A1 & A3
Column 2
A2,A4,A5,A6,A7: Highlight A5,A6,A7
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crystal
crystal     Lala
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Hi Lala,
It would be nice if you could upload a screenshot of your data and the result you want to get.
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Diego
Diego
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Confrontando la cella VIA ROMA 1 con la cella VIA RROMA 1 il programma evidenzia in rosso sia RROMA che 1. Non si può fare in modo che evidenzi solo la lettera diversa e quindi R? Grazie
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AliM
AliM
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in your example, words "lets try" is similar but your code can't highlight it.
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Olivier
Olivier
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To avoid any trouble of this code with the spaces which should be in ASCII value 32 or 160 (especially if the string comes from HTML) you need to include the test line 46 in a if endif loop as below:
If Not ((Asc(xCell1.Characters(J, 1).Text) = 32 Or Asc(xCell1.Characters(J, 1).Text) = 160) And (Asc(xCell2.Characters(J, 1).Text) = 32 Or Asc(xCell2.Characters(J, 1).Text) = 160)) Then
( line 46 If Not xCell1.Characters(J, 1).Text = xCell2.Characters(J, 1).Text Then Exit For)
End If

Nevertheless thanks for the code.
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Ryan
Ryan     Olivier
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How do I add this properly? I am getting an error when I tried to replace line 46. Thank you
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Aranya
Aranya
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THANK YOU! this is just what i needed!
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Candace Lebel
Candace Lebel
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I was so hoping this would work. It appears to compare whole cells and not characters within the cells. Simply comparing Candy in one cell to Andy in another finds no similarities. And when I compare for differences the entire name Andy is highlighted in red.
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Ron
Ron     Candace Lebel
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First off..THANKS Extend Office folks for the good code!!

Try this modification. It simply expands the per character checking loop to include the font color formatting, adds a default "Black", and also compares characters out to the longest of the two cells being compared.

Sub highlight()
    Dim xRg1 As Range
    Dim xRg2 As Range
    Dim xTxt As String
    Dim xCell1 As Range
    Dim xCell2 As Range
    Dim I As Long
    Dim J As Integer
    Dim xLen As Integer
    Dim xDiffs As Boolean
    On Error Resume Next
    If ActiveWindow.RangeSelection.Count > 1 Then
      xTxt = ActiveWindow.RangeSelection.AddressLocal
    Else
      xTxt = ActiveSheet.UsedRange.AddressLocal
    End If
lOne:
    Set xRg1 = Application.InputBox("Range A:", "Kutools for Excel", xTxt, , , , , 8)
    If xRg1 Is Nothing Then Exit Sub
    If xRg1.Columns.Count > 1 Or xRg1.Areas.Count > 1 Then
        MsgBox "Multiple ranges or columns have been selected ", vbInformation, "Kutools for Excel"
        GoTo lOne
    End If
lTwo:
    Set xRg2 = Application.InputBox("Range B:", "Kutools for Excel", "", , , , , 8)
    If xRg2 Is Nothing Then Exit Sub
    If xRg2.Columns.Count > 1 Or xRg2.Areas.Count > 1 Then
        MsgBox "Multiple ranges or columns have been selected ", vbInformation, "Kutools for Excel"
        GoTo lTwo
    End If
    If xRg1.CountLarge <> xRg2.CountLarge Then
       MsgBox "Two selected ranges must have the same numbers of cells ", vbInformation, "Kutools for Excel"
       GoTo lTwo
    End If
    xDiffs = (MsgBox("Click Yes to highlight similarities, click No to highlight differences ", vbYesNo + vbQuestion, "Kutools for Excel") = vbNo)
    Application.ScreenUpdating = False
    xRg2.Font.ColorIndex = xlAutomatic
    For I = 1 To xRg1.Count
        Set xCell1 = xRg1.Cells(I)
        Set xCell2 = xRg2.Cells(I)
        If xCell1.Value2 = xCell2.Value2 Then
            If Not xDiffs Then xCell2.Font.Color = vbRed
        Else
            xLen = Application.WorksheetFunction.Max(Len(xCell1.Value2), Len(xCell2.Value2))
            For J = 1 To xLen
                xCell2.Characters(J, Len(xCell2.Value2) - J + 1).Font.Color = vbBlack
                If Not xCell1.Characters(J, 1).Text = xCell2.Characters(J, 1).Text Then
                    If Not xDiffs Then
                        If J <= Len(xCell2.Value2) And J > 1 Then
                            xCell2.Characters(1, J - 1).Font.Color = vbRed
                        End If
                    Else
                        If J <= Len(xCell2.Value2) Then
                            xCell2.Characters(J, Len(xCell2.Value2) - J + 1).Font.Color = vbRed
                        End If
                    End If
                End If
            Next J
        End If
    Next
    Application.ScreenUpdating = True
End Sub
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sean
sean
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just want to say thanks!
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ARZ
ARZ
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How can I get difference number between two strings?

Example: "123456" and "213456" ==> 2 difference
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Stefan
Stefan
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Very useful script! thanks
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