根据建议，我将正在使用的列设置为 Const 引用。 只要我不将列声明为 Integer or Long ，此操作就有效。 Integer 或 Long 返回“编译错误，类型不匹配。”
当我注释掉任何 Integer 或 Long 列（Plt_PltNum、Proj_1stPlate 和 Proj_LastPlate）并仅引用循环中的范围时，代码会运行，尽管它不会返回我需要的信息。
我怀疑 VB 没有将整数列视为整数，因此 >= 和 <= conditions don't really work.
Sub ProjectPlateLoops()
'define workbooks and worksheets
Dim wb As Workbook, ws As Worksheet, PlateSheet As Worksheet, ProjSheet As Worksheet
Dim pltNum As Integer
Dim lrProj As Long, lrPlate As Long, i As Long, j As Long
Dim Farm As String, Batch As String
Dim projcode
Dim pltprojcode
Set wb = ActiveWorkbook 'or ActiveWorkbook?
Set ws = ActiveSheet
Set PlateSheet = wb.Worksheets("Plate_Analysis")
Set ProjSheet = wb.Worksheets("Project_Analysis")
'last rows in Project Analysis/Plate sheets (call separate function for this)
lrProj = LastOccupiedRow(ProjSheet)
lrPlate = LastOccupiedRow(PlateSheet)
'column constants
' Plate Sheet
'Const Plt_PltNum As Long = "E" ' plate number on PltSheet
Const Plt_ProjID_Col As String = "F" ' proj code on PltSheet
Const Plt_Batch_Col As String = "G" ' batch on PltSheet
Const Plt_Farm_Col As String = "H" ' farm name on PltShee
' Proj Sheet
Const Proj_ProjID_Col As String = "F" ' proj code on ProjSheet
Const Proj_Farm_Col As String = "D" ' farm name on ProjSheet
Const Proj_Batch_Col As String = "E" ' batch on ProjSheet
'Const Proj_1stPlate As Integer = "J" ' first plate # in batch from ProjSheet
'Const Proj_LastPlate As Integer = "L" ' last plate # in batch from ProjSheet
' Create Loop; if 3 conditions are met, then print Batch and Farm from Project sheet to Plate sheet
' Condition 1: pltprojcode = projcode
' Condition 2 & 3: pltNum >= firstplatenum AND <= lastplatenum
For i = 3 To lrPlate
pltprojcode = PlateSheet.Cells(i, Plt_ProjID_Col).Value2
Debug.Print "i: " & (i) & ", " & "Plate ProjCode from PlateSheet: " & (pltprojcode)
pltNum = PlateSheet.Cells(i, "E").Value2
Debug.Print "i: " & (i) & ", " & "Plate Number from PlateSheet: " & (pltNum)
For j = 3 To lrProj
If ProjSheet.Cells(j, Proj_ProjID_Col).Value2 = pltprojcode Then
projcode = ProjSheet.Cells(j, Proj_ProjID_Col).Value2
Debug.Print "ProjCode from ProjSheet: "; j & ", " & (projcode)
Farm = ProjSheet.Cells(j, Proj_Farm_Col).Value2
Debug.Print "j: " & (j) & ", " & "Farm: " & (Farm)
Batch = ProjSheet.Cells(j, Proj_Batch_Col).Value2
Debug.Print "j: " & (j) & ", " & "Batch: " & (Batch)
On Error Resume Next
End If
If pltNum >= ProjSheet.Cells(i, "J").Value2 And _
pltNum <= ProjSheet.Cells(i, "L").Value2 Then
PlateSheet.Cells(i, Plt_Farm_Col).Value2 = Farm 'farm
PlateSheet.Cells(i, Plt_Batch_Col).Value2 = Batch 'batch
On Error Resume Next
End If
Next j
Next i
End Sub
Function LastOccupiedRow(ws As Worksheet) As Long
Dim f As Range
Set f = ws.Cells.Find("*", SearchOrder:=xlByRows, SearchDirection:=xlPrevious)
If Not f Is Nothing Then LastOccupiedRow = f.Row
End Function
有趣的是，如果我现在运行代码，唯一显示的 Debug.Print 值位于“i”循环中。如果我注释掉 i 循环 Debug.Print，则会打印“j”调试值，但只会一遍又一遍地打印相同的行，就好像只有一行数据实际上符合所有条件。
快速修复
Sub RetrieveBatchAndFarm()
' Define constants.
Const SRC_SHEET_NAME As String = "Project_Analysis"
Const SRC_FIRST_ROW As Long = 3
Const SRC_PROJ_ID As String = "F" ' 2. ... here, if found...
Const SRC_MIN_PLATE As String = "J" ' 4. ... is between...
Const SRC_MAX_PLATE As String = "L" ' 5. ... these two, if so...
Const SRC_FARM As String = "D" ' 6. ... then copy this...
Const SRC_BATCH As String = "E" ' 8. ... and copy this...
Const DST_SHEET_NAME As String = "Plate_Analysis"
Const DST_FIRST_ROW As Long = 3
Const DST_PROJ_ID As String = "F" ' 1. Find this...
Const DST_PLATE As String = "E" ' 3. ... then check if this...
Const DST_BATCH As String = "G" ' 7. ... here,...
Const DST_FARM As String = "H" ' 9. ... here.
' Reference the workbook and worksheets, and determine the last rows.
Dim wb As Workbook: Set wb = ThisWorkbook ' workbook containing this code
Dim sws As Worksheet: Set sws = wb.Sheets(SRC_SHEET_NAME)
Dim sLastRow As Long: sLastRow = GetLastRow(sws)
Dim dws As Worksheet: Set dws = wb.Sheets(DST_SHEET_NAME)
Dim dLastRow As Long: dLastRow = GetLastRow(dws)
' Loop: if 'ProcId's are equal then if 'Plate' is between 'Plates'
' then copy 'Batch' and 'Farm'.
Dim sr As Long, sFarm As String, sBatch As String, sProcId As String
Dim dr As Long, dPlate As Double, dProcId As String
For dr = DST_FIRST_ROW To dLastRow
dProcId = CStr(dws.Cells(dr, DST_PROJ_ID).Value)
For sr = SRC_FIRST_ROW To sLastRow
sProcId = CStr(sws.Cells(sr, SRC_PROJ_ID).Value)
If StrComp(sProcId, dProcId, vbTextCompare) = 0 Then ' is equal
dPlate = dws.Cells(dr, DST_PLATE).Value
If dPlate >= sws.Cells(dr, SRC_MIN_PLATE).Value _
And dPlate <= sws.Cells(dr, SRC_MAX_PLATE).Value Then
sBatch = sws.Cells(sr, SRC_BATCH).Value
sFarm = sws.Cells(sr, SRC_FARM).Value
dws.Cells(dr, DST_BATCH).Value = sBatch
dws.Cells(dr, DST_FARM).Value = sFarm
' If you're looking for a single match, exit the inner loop
' to speed up the code i.e. uncomment the following line!!!
'Exit For
End If
End If
Next sr
Next dr
' Inform.
MsgBox "Batch and Farm retrieved.", vbInformation
End Sub
Function GetLastRow(ws As Worksheet) As Long
Dim rg As Range
Set rg = ws.Cells.Find("*", , xlFormulas, , xlByRows, xlPrevious)
If Not rg Is Nothing Then GetLastRow = rg.Row
End Function