Vba ReDim保留在For循环中
我不知道我做错了什么,因为下面的代码能够Vba ReDim保留在For循环中,vba,excel,Vba,Excel,我不知道我做错了什么,因为下面的代码能够ReDim保留第一次迭代,但不能保留第二次迭代 Dim inj0() As Variant Dim i As Integer Dim c As Integer Dim Rng As Range Dim pos As Integer 'Find the last used column in a Row Dim LastCol As Integer With ActiveSheet LastCol = .Cells(2, .Columns.Coun
ReDim保留第一次迭代,但不能保留第二次迭代
Dim inj0() As Variant
Dim i As Integer
Dim c As Integer
Dim Rng As Range
Dim pos As Integer
'Find the last used column in a Row
Dim LastCol As Integer
With ActiveSheet
LastCol = .Cells(2, .Columns.Count).End(xlToLeft).Column
End With
c = 0
For i = 1 To LastCol
pos = InStr(Cells(2, i), "80")
If pos = 1 Then
ReDim Preserve inj0(c, 2)
inj0(0, 1) = "80"
Set Rng = Cells(2, i)
inj0(c, 2) = Rng.Offset(-1, 0).Value
inj0(c, 0) = Rng.Offset(3, 0).Value
c = c + 1
End If
Next
尝试按如下方式更改代码:
c = 0
ReDim inj0(2, 0)
inj0(1, 0) = "80"
For i = 1 To LastCol
pos = InStr(Cells(2, i), "80")
If pos = 1 Then
ReDim Preserve inj0(2, c)
Set Rng = Cells(2, i)
inj0(2, c) = Rng.Offset(-1, 0).Value
inj0(0, c) = Rng.Offset(3, 0).Value
c = c + 1
End If
Next
如果您需要交换维度,最后您可以。哪里会出现错误?在ReDim Preserve inj0(c,2)
它说下标超出范围,您只能ReDim Preserve
数组的最后一个维度。从在线帮助中,如果您使用保留关键字,您可以只调整最后一个数组维度,并且不能更改在这里考虑的一个优化的可能副本的维数。避免使用Redim Preserve,这是一项成本高昂的操作。相反,先确定需要多少个条目,然后定义大小,然后填充数组。比如先做一个CountIf来确定需要多少个条目会更好,特别是当有大量数据添加到数组中时。