在以下程序中，我要做的是扫描用户填写的工作簿中特定工作表范围的“是”列，以及用户在该特定“是”列范围内放置“x”的任何位置，它将识别该行中标记的问题的关联项目，并将与该问题关联的项目代码（例如 C3）复制到摘要页面以进行记录。
问题在于，当 for 循环遍历所需的工作表范围时，代码不会按预期将项目复制到摘要页面上。但是，如果我注释掉 for 循环代码并编写 Sheets(6).Select 而不是 Sheets(i).Select，例如，它将按预期将“x”标记的项目复制到工作表索引 #6 的摘要页面上. 这使我相信我的代码的复制+粘贴部分有效（在 while 循环语句之间），但 for 循环以某种方式失败。
有人可以帮我确定错误的来源吗？我知道这段代码效率不高，例如过度使用 .select 和非动态声明，但是如果我想尽可能多地保持代码相同，我该如何修改它以使其循环遍历所有我想要的床单？
谢谢
Sub DSR_Autofill()
' Variable Declarations:
Dim x_count As Long 'keeps track of how many "x"s you have
Dim i As Long 'for loop index
Dim n As Long 'while loop index
Dim item_a As String 'Letter part of Item
Dim item_b As String 'Number part of Item
' Variable Initializations:
x_count = 0 'start x count at zero
' Clear Previous Data:
Sheets(2).Range("A25:A29").ClearContents 'Clear Summary Pages before scanning through
Sheets(3).Range("A18:A200").ClearContents
' Main Data Transfer Code:
For i = 5 To i = 20 'Starts at "Process Control" and ends on "Product Stewardship"
Sheets(i).Select 'Select current indexed worksheet and...
Range("D15").Select '...the first item cell in the "Yes" Column
n = 0 'initialize n to start at top item row every time
Do While ActiveCell.Offset(n, -3) <> Empty 'Scan down "YES" column until Item Column (just "A" Column)...
'...has no characters in it (this includes space (" "))
If (ActiveCell.Offset(n, 0) = "x" _
Or ActiveCell.Offset(n, 0) = "X") Then 'If an "x" or "X" is marked in the "YES" column at descending...
'...cells down the column, at an offset specified by the for loop index n
item_a = ActiveCell.Offset(n, -3).Value ' Store Letter value
item_a = Replace(item_a, "(", "") ' Get rid of "(", ")", and " " (space)
item_a = Replace(item_a, ")", "") ' characters that are grabbed
item_a = Replace(item_a, " ", "")
item_b = ActiveCell.Offset(n, -2).Value ' Store number value
item_b = Replace(item_b, "(", "") ' Get rid of "(", ")", and " " (space)
item_b = Replace(item_b, ")", "") ' characters that are grabbed
item_b = Replace(item_b, " ", "")
x_count = x_count + 1 ' increment the total x count
If (x_count > 5) Then ' If there are more than 5 "x" marks...
Sheets("SUMMARY P.2").Activate ' ...then continue to log in SUMMARY P.2 and...
Range("A18").Select ' ...choose "Item" column, first cell
ActiveCell.Offset((x_count - 6), 0).Value = (item_a & item_b)
'Insert concatenated value of item_a and item_b (for example "A" & "1" = "A1")
'at the cells under the "Item" column, indexed by x_count
Else ' If there are less than 5 "x" marks...
Sheets("SUMMARY P.1").Activate ' ...log in SUMMARY P.1 and...
Range("A25").Select ' ...choose "Item" column, first cell
ActiveCell.Offset((x_count - 1), 0).Value = (item_a & item_b)
End If
End If
n = n + 1
Sheets(i).Select 'Return back to current sheet before running again
Range("D15").Select
Loop 'syntax for continuation of while loop
Next i 'syntax for continuation of for loop
If (x_count > 5) Then 'Bring user back to the Summary Page where the last Item was logged
Sheets("SUMMARY P.2").Select
Else
Sheets("SUMMARY P.1").Select
End If
End Sub