要在Excel中获取区域内各单元格字符串中的相同字符,可用下面的自定义函数。例如要在D1单元格获取A1:C1区域各单元格中相同的字符,如图: 按Alt+F11,打开VBA编辑器,单击菜单“插入→模块”,在代码窗口中输入自定义函数: Function GetDupChars(rRng As Range) As String Application.Volatile Dim i As Integer, j As Integer, k As Integer Dim Str As String Str = rRng.Item(1).Text For i = 1 To Len(Str) k = 0 For j = 2 To rRng.Cells.Count If InStr(rRng.Item(j).Text, Mid(Str, i, 1)) Then k = k + 1 Next If k = j – 2 And InStr(GetDupChars, Mid(Str, i, 1)) = 0 _ Then GetDupChars = GetDupChars & Mid(Str, i, 1) Next End Function 然后关闭VBA编辑器,在D1单元格中输入公式即可: =GetDupChars(A1:C1)