替自定义函数设置不定个数的参数

本文为《别怕，Excel VBA其实很简单（第3版）》随书问题参考答案

以下过程供参考：

Function JoinText(Txt As String, ParamArray list() As Variant) As String
Dim c As Variant, v As Variant
For Each c In list
If TypeName(c) = "Range" Or TypeName(c) = "Variant()" Then
For Each v In c
JoinText = JoinText & v & Txt
Next v
Else
JoinText = JoinText & c & Txt
End If
Next c
JoinText = Left(JoinText, Len(JoinText) - 1)
End Function