我正在获取一组单元格并在下面的函数中对它们进行一些计算。
如果我将一个范围(带有:
符号)作为第一个参数传递,它会起作用,但如果我选择一些单元格作为其范围(A1, A3, B6, B9
)则失败。它只是在逗号之前获得第一个单元格作为第一个参数。但我想要整个细胞。
我该怎么办? (除了使用字符串传递范围)
Function calculateIt(Sessions As Range, Customers As Range) As Single
' calculate them...
End Function
还有一件事:是否可以将一组范围作为参数传递?如何?
答案 0 :(得分:22)
如上所述,您的函数只接受两个范围作为参数。
要允许在函数中使用可变数量的范围,您需要在参数列表中声明ParamArray变量数组。然后,您可以依次处理数组中的每个范围。
例如,
Function myAdd(Arg1 As Range, ParamArray Args2() As Variant) As Double
Dim elem As Variant
Dim i As Long
For Each elem In Arg1
myAdd = myAdd + elem.Value
Next elem
For i = LBound(Args2) To UBound(Args2)
For Each elem In Args2(i)
myAdd = myAdd + elem.Value
Next elem
Next i
End Function
然后可以在工作表中使用此函数添加多个范围。
对于您的函数,存在可以传递给函数的哪个范围(或单元格)是“会话”以及哪些是“客户”的问题。
最简单的处理方法是,如果您确定第一个范围是Sessions,后续范围是客户。
Function calculateIt(Sessions As Range, ParamArray Customers() As Variant) As Double
'This function accepts a single Sessions range and one or more Customers
'ranges
Dim i As Long
Dim sessElem As Variant
Dim custElem As Variant
For Each sessElem In Sessions
'do something with sessElem.Value, the value of each
'cell in the single range Sessions
Debug.Print "sessElem: " & sessElem.Value
Next sessElem
'loop through each of the one or more ranges in Customers()
For i = LBound(Customers) To UBound(Customers)
'loop through the cells in the range Customers(i)
For Each custElem In Customers(i)
'do something with custElem.Value, the value of
'each cell in the range Customers(i)
Debug.Print "custElem: " & custElem.Value
Next custElem
Next i
End Function
如果要包含任意数量的Sessions范围和任意数量的Customers范围,则必须包含一个参数,该参数将告知该函数,以便它可以将Sessions范围与Customers范围分开。
此参数可以设置为函数的第一个数字参数,该参数将标识以下参数中有多少是Sessions范围,其余参数隐式为Customers范围。该函数的签名将是:
Function calculateIt(numOfSessionRanges, ParamAray Args() As Variant)
或者它可以是一个“保护”参数,将Sessions范围与Customers范围分开。然后,您的代码必须测试每个参数以查看它是否是警卫。该函数看起来像:
Function calculateIt(ParamArray Args() As Variant)
也许通过以下呼叫:
calculateIt(sessRange1,sessRange2,...,"|",custRange1,custRange2,...)
程序逻辑可能符合以下方式:
Function calculateIt(ParamArray Args() As Variant) As Double
...
'loop through Args
IsSessionArg = True
For i = lbound(Args) to UBound(Args)
'only need to check for the type of the argument
If TypeName(Args(i)) = "String" Then
IsSessionArg = False
ElseIf IsSessionArg Then
'process Args(i) as Session range
Else
'process Args(i) as Customer range
End if
Next i
calculateIt = <somevalue>
End Function
答案 1 :(得分:6)
还有另一种方法可以将多个范围传递给一个函数,我认为这对用户来说感觉更清晰。在电子表格中调用函数时,用括号括起每组范围,例如:calculateIt( (A1,A3), (B6,B9) )
上述电话假设您的两个会话位于A1和A3,而您的两个客户位于B6和B9。
要使其工作,您的函数需要遍历输入范围中的每个Areas
。例如:
Function calculateIt(Sessions As Range, Customers As Range) As Single
' check we passed the same number of areas
If (Sessions.Areas.Count <> Customers.Areas.Count) Then
calculateIt = CVErr(xlErrNA)
Exit Function
End If
Dim mySession, myCustomers As Range
' run through each area and calculate
For a = 1 To Sessions.Areas.Count
Set mySession = Sessions.Areas(a)
Set myCustomers = Customers.Areas(a)
' calculate them...
Next a
End Function
好消息是,如果您将两个输入作为连续范围,则可以像正常情况一样调用此函数,例如calculateIt(A1:A3, B6:B9)
。
希望有所帮助:)
答案 2 :(得分:0)
当我是vba的初学者时,我愿意对vba有深入的了解,了解所有excel内置函数如何从那里开始工作。
因此,在上述问题上,我已经做出了基本努力。
Function multi_add(a As Range, ParamArray b() As Variant) As Double
Dim ele As Variant
Dim i As Long
For Each ele In a
multi_add = a + ele.Value **- a**
Next ele
For i = LBound(b) To UBound(b)
For Each ele In b(i)
multi_add = multi_add + ele.Value
Next ele
Next i
End Function
-a :由于上述代码被减去,导致计数本身加倍,因此您添加的值将使第一个值加两次。