excel - 如何在 Excel VBA 中编写一个采用参数范围或列表的函数？

Question

与 SUM例如，我可以执行以下操作:

=SUM(F5:F7,F6:F8,A1,E7:G7,F7,2,7)

它需要多个范围和/或单个单元格，并将它们全部加起来。我的问题是如何使用 VBA 函数执行此操作，例如推广二进制 XOR:

Function BXOR(A As Integer, B As Integer) As Integer
    BXOR = CLng(A) Xor CLng(B)
End Function

当我不得不 =BXOR(BXOR(BXOR(w,x),y),z) 时它会很快变老

Marco 函数的广义版本:

Function BXOR(ParamArray vars() As Variant) As Long
    Dim i,j As Long
    BXOR = 0

    For i = 0 To UBound(vars)
        If Not IsObject(vars(i)) Then
            ' Handle explicitly passed integer arguments, e.g. BXOR(1,[...])
            BXOR = BXOR Xor CLng(vars(i))
        ElseIf IsArray(vars(i).Value2) Then
            ' Handle 1-D ranges of cells, e.g. BXOR(A1:A3,[...])
            For j = 1 To UBound(vars(i).Value2)
                BXOR = BXOR Xor CLng(vars(i)(j).Value2)
            Next j
        Else
            ' Handle individual cells, e.g. BXOR(A1,[...])
            BXOR = BXOR Xor CLng(vars(i).Value2)
        End If
    Next i
End Function

Answer 1

我认为您正在寻找 ParamArray

您的代码应如下所示:

Function BXor(ParamArray vars() As Variant) as Long
    Dim i As Long
    Dim tmp As Long

    For i = 0 To UBound(vars)
        tmp = tmp Xor clng(vars(i))
    Next

    BXor = tmp
End Function