在数组末尾添加一个元素

Question

我想在 VBA 数组的末尾添加一个值。我怎样才能做到这一点？我在网上找不到一个简单的例子。这是一些伪代码，显示了我希望能够做什么。

Public Function toArray(range As range)
 Dim arr() As Variant
 For Each a In range.Cells
  'how to add dynamically the value to end and increase the array?
   arr(arr.count) = a.Value 'pseudo code
 Next
toArray= Join(arr, ",")
End Function

Answer 1

我通过使用集合解决了这个问题，然后将其复制到数组中。

Dim col As New Collection
For Each a In range.Cells
   col.Add a.Value  '  dynamically add value to the end
Next
Dim arr() As Variant
arr = toArray(col) 'convert collection to an array

Function toArray(col As Collection)
  Dim arr() As Variant
  ReDim arr(0 To col.Count-1) As Variant
  For i = 1 To col.Count
      arr(i-1) = col(i)
  Next
  toArray = arr
End Function

Answer 2

试试这个[编辑]：

Dim arr() As Variant ' let brackets empty, not Dim arr(1) As Variant !

For Each a In range.Cells
    ' change / adjust the size of array 
    ReDim Preserve arr(1 To UBound(arr) + 1) As Variant

    ' add value on the end of the array
    arr (UBound(arr)) = a.value
Next