excel - 区分excel中的重复值

Question

我需要具有相同列颜色的特定值的所有重复项。这将帮助我找到特定值有多少重复项，对应的列值等。请查找 Sample Excel。如果我进行条件格式，突出显示重复项，这将为所有重复项提供相同的颜色，而不管值如何。这不会解决目的。如果有的话，还建议在 excel 中区分重复值的其他方法。

Answer 1

没有办法用条件格式做你想做的事，但我认为下面的宏会做你想做的事。它构建了一个唯一值的字典，并为每个值分配一个随机颜色，然后匹配并重复用于任何重复项。

' Base function that can be used for different columns.
Sub colorDistinctInColumn(ByVal columnLetter As String)
    Dim lastRow As Integer
    Dim i As Integer
    Dim dict
    Dim currentCell As Range
    Dim columnNumber As Integer

    ' Create a dictionary to hold the value/colour pairs
    Set dict = CreateObject("Scripting.Dictionary")

    ' Find the last-used cell in the column of interest
    lastRow = ActiveSheet.Columns(columnLetter).Cells.Find( _
        "*", _
        SearchOrder:=xlByRows, _
        LookIn:=xlValues, _
        SearchDirection:=xlPrevious).Row

    ' Pick columnNumber using the given column letter
    columnNumber = ActiveSheet.Columns(columnLetter).Column

    ' Loop through all of the cells
    For i = 1 To lastRow
        Set currentCell = ActiveSheet.Cells(i, columnNumber)

        ' See if we've already come across the current value
        If Not dict.exists(currentCell.Value) Then

            ' This value has not been encountered yet,
            ' so store it and assign a random colour
            dict.Add currentCell.Value, RGB(Rnd * 255, Rnd * 255, Rnd * 255)
        End If

        ' Set the colour of the current cell to whichever colour
        ' has been stored for the current cell's value
        currentCell.Interior.Color = dict(currentCell.Value)
    Next i

    Set dict = Nothing
End Sub

' Actual Macro that will run in Excel
Sub colorDistinctInColumnA()
    Call colorDistinctInColumn("A")
End Sub