Excel VBA循环遍历表和总结值

Question

我有这张约50,000行的表，我希望Excel能够通过并分配一个数字或字母。

基本上我试图根据他们的总和大于1,000,000来分组数据。

如果该行中的单元格A小于1,000,000，它将转到下一行并将前一个单元格A合并到当前单元格中，依此类推。这一直持续到所有行的总和> = 1,000,000。当发生这种情况时，一个数字被“分配”（如在行尾输入）。

的样本数据：

这里是我当前的 “伪” 代码：

For x = 2 to lastrow 
    y = 1 

    If Range("A" & x).value < 1000000 Then 

'I know something needs to be entered here but I don't know what 

     Do while balance < 1000000 

      sumbalance = Range("A" & x) + Range("A" & x + 1) 

'Until sumbalance >= 1000000 Then Range("A" & x).Offset(0, 2).value = y 

    Else 

     Range("A" & x).offset(0, 2).value = y + 1 '(?)   

Next x 

有人能指出我的方向是正确的？

Answer 1

对于50K行，您可能会喜欢将值移动到变体数组中进行处理，然后将其返回到工作表整体。

Dim i As Long, rws As Long, dTTL As Double, v As Long, vVALs As Variant 

With Worksheets("Sheet2") 
    vVALs = .Range(.Cells(2, "A"), .Cells(.Cells(Rows.Count, "A").End(xlUp).Row, "B")).Value2 
    For v = LBound(vVALs, 1) To UBound(vVALs, 1) 
     dTTL = dTTL + vVALs(v, 1): rws = rws + 1 
     If dTTL >= 10^6 Then 
      For i = v - rws + 1 To v 
       vVALs(i, 2) = rws 
      Next i 
      dTTL = 0: rws = 0 
     End If 
    Next v 
    .Cells(2, "A").Resize(UBound(vVALs, 1), UBound(vVALs, 2)) = vVALs 
End With 

如果最后一组数字没有达到1M标记，结束序列的方式并不清楚。

Answer 2

我希望我在我的评论中清楚，让我知道如果代码做你想要的。

Option Explicit 

Sub balance() 

Dim wb As Workbook 
Dim ws As Worksheet 
Dim x As Double, y As Integer 
Dim lastrow As Long 
Dim sumbalance As Double 
Dim Reached As Boolean 

    Set wb = ThisWorkbook 
    Set ws = wb.Sheets("Sheet1") 'Change the name of the sheet to yours 

    lastrow = ws.Range("A" & Rows.Count).End(xlUp).Row 'Check the last Row 

For x = 2 To lastrow 

      y = 1 ' Number 1 will be past in column C when sumblance >= 1'000'000 
Reached = False 
Do 

If Range("A" & x).Value < 10^6 Then ' Value less than 1'000'000 

        If sumbalance = 0 Then 'Start the sum balance at 0 
          sumbalance = Range("A" & x) 

        Else 
          sumbalance = Range("A" & x) + sumbalance 'We add the previous amount to the new one 
          x = x + 1 
        End If 

    Else 

    Range("A" & x).Offset(0, 2).Value = y ' If the number is directly >= 1'000'000 
    Reached = True 
End If 



    Loop Until sumbalance >= 10^6 Or x = lastrow Or Reached = True 

     Range("A" & x).Offset(0, 2).Value = y 'when the Sum Balance is >= 1'000'000 so 1 is paste in column c 
     sumbalance = 0 'Reinitialize the balance to 0 

     Next x 

End Sub