我正在尝试加速我的Excel VB宏。 我尝试了下面的5个替代方案。 但我想知道我是否可以进一步缩短执行时间。 我在用户博客中发现了两个我无法工作的替代方案。 在用户博客中也可以找到一种替代方案但不明白。
Sub AccelerateMacro()
'
' v1 052817 by eb+mb
' Macro to copy as fast as possible sheet from one workbook into another workbooks
' Declarations for variables are not shown to make code example more legible
' Macro is stored in and run from "DestinationWorkBook.xlsm"
StartTime = Timer
Application.ScreenUpdating = False
Application.DisplayAlerts = False
Alternative = "First"
If Alternative = "First" Then
Workbooks.Open Filename:="SourceWorkBook.xls"
Cells.Select
Selection.Copy
Windows("DestinationWorkBook.xlsm").Activate
Sheets("DestinationSheet").Select
Range("A1").Select
ActiveSheet.Paste
Windows("SourceWorkBook.xls").Activate
ActiveWorkbook.Close
End If
If Alternative = "Second" Then
Workbooks.Open Filename:="SourceWorkBook.xls", ReadOnly:=True
Cells.Select
Selection.Copy
Windows("DestinationWorkBook.xlsm").Activate
Sheets("DestinationSheet").Select
Range("A1").Select
ActiveSheet.Paste
Workbooks("SourceWorkBook.xls").Close SaveChanges:=False
End If
If Alternative = "Third" Then
' I could not get this alternative to work
Workbooks.Open("SourceWorkBook.xls").Worksheets("SourceSheet").Copy
Workbooks.Open("DestinationWorkBook.xlsm").Worksheets("DestinationSheet").Range("A1").PasteSpecial
End If
If Alternative = "Fourth" Then
' I could not get this alternative to work
Workbooks.Open("DestinationWorkBook.xlsm").Worksheets("DestinationSheet").Range("A1") = Workbooks.Open("SourceWorkBook.xls").Worksheets("SourceSheet")
End If
If Alternative = "Fifth" Then
' I don't understand the code in this alternative
Dim wbIn As Workbook
Dim wbOut As Workbook
Dim rSource As Range
Dim rDest As Range
Set wbOut = Application.Workbooks.Open("DestinationWorkBook.xlsm")
Set wbIn = Application.Workbooks.Open("SourceWorkBook.xls")
With wbIn.Sheets("SourceSheet").UsedRange
wbOut.Sheets("DestinationSheet").Range("A1").Resize(.Rows.Count, .Columns.Count) = .Value
End With
SecondsElapsed = Round(Timer - StartTime, 2)
MsgBox "This code ran successfully in " & SecondsElapsed & " seconds", vbInformation
End Sub
答案 0 :(得分:2)
不使用UsedRange
,而是找到实际的Last Row
和Last Column
并使用该范围。 UsedRange
可能不是您认为的范围:)。您可能需要查看THIS以获得解释。
请参阅此示例( UNTESTED )
Sub Sample()
Dim wbIn As Workbook, wbOut As Workbook
Dim rSource As Range
Dim lRow As Long, LCol As Long
Dim LastCol As String
Set wbOut = Workbooks.Open("DestinationWorkBook.xlsm")
Set wbIn = Workbooks.Open("SourceWorkBook.xls")
With wbIn.Sheets("SourceSheet")
'~~> Find Last Row
lRow = .Cells.Find(What:="*", _
After:=.Range("A1"), _
Lookat:=xlPart, _
LookIn:=xlFormulas, _
SearchOrder:=xlByRows, _
SearchDirection:=xlPrevious, _
MatchCase:=False).Row
'~~> Find Last Column
LCol = .Cells.Find(What:="*", _
After:=.Range("A1"), _
Lookat:=xlPart, _
LookIn:=xlFormulas, _
SearchOrder:=xlByColumns, _
SearchDirection:=xlPrevious, _
MatchCase:=False).Column
'~~> Column Number to Column Name
LastCol = Split(Cells(, LCol).Address, "$")(1)
'~~> This is the range you want
Set rSource = .Range("A1:" & LastCol & lRow)
'~~> Get the values across
wbOut.Sheets("DestinationSheet").Range("A1:" & LastCol & lRow).Value = _
rSource.Value
End With
End Sub