Question

我有下面的代码，它可以帮助我打开从该文件到当前工作簿的文件复制数据。它还过滤数据并删除不需要的行。问题是源文件太大，文件大小最大为30MB，其中包含A1：BG1018576范围内的数据

打开文件后，工作是复制特定的列并经过它，它还将过滤数据并删除不需要的行。

Sub Position()
    Dim b1 As Workbook, b2 As Workbook
    Dim ws As Worksheet
    Dim src As Worksheet
    Dim trg As Worksheet
    Dim Fname As String
    Dim LR As Long
    Dim LR1 As Long

    Set b1 = ThisWorkbook 
    Fname = Application.GetOpenFilename(FileFilter:="Excel Files (*.xls*), *.xls*", Title:="Select a File")

    If Fname = "False" Then Exit Sub

    Set b2 = Workbooks.Open(Fname)
    Set b2 = ActiveWorkbook

    For Each ws In b2.Sheets
        If ws.Visible Then
            ws.Copy after:=b1.Sheets(b1.Sheets.Count)
        End If
    Next ws

    b2.Close

    Set src = ThisWorkbook.Worksheets("CR")
    Set trg = ThisWorkbook.Worksheets("Data")
    src.Range("B:B").Copy Destination:=trg.Range("E1")
    src.Range("G:G").Copy Destination:=trg.Range("D1")
    src.Range("T:T").Copy Destination:=trg.Range("F1")
    src.Range("BB:BB").Copy Destination:=trg.Range("G1")
    src.Range("BG:BG").Copy Destination:=trg.Range("H1")        
    src.Range("D:D").Copy Destination:=trg.Range("I1")        
    src.Range("F:F").Copy Destination:=trg.Range("J1")                
    src.Delete

    With Worksheets("Data") '<--| always specify full worksheet reference (change "MyWantedSheet" with your actual sheet name)
        With .Columns("D:D") '.Resize(.Cells(.Rows.Count, "B").End(xlUp).Row) '<--| refer to wanted column range down to its last non empty cell
            .AutoFilter '<--| remove possible preeeding autofilter filtering
            .AutoFilter Field:=1, Criteria1:="=" '<--| apply current filtering
                .Resize(.Parent.Cells(.Parent.Rows.Count, "E").End(xlUp).Row - 1).Offset(1).SpecialCells(xlCellTypeVisible).Rows.Delete '<--|delete visible rows other than the first ("headers") one
        End With
        .AutoFilterMode = False '<--| remove drop-down arrows
    End With

    With Worksheets("Data") '<--| always specify full worksheet reference (change "MyWantedSheet" with your actual sheet name)
        With .Columns("H:H") '.Resize(.Cells(.Rows.Count, "B").End(xlUp).Row) '<--| refer to wanted column range down to its last non empty cell
            .AutoFilter '<--| remove possible preeeding autofilter filtering
            .AutoFilter Field:=1, Criteria1:="N" '<--| apply current filtering
                .Resize(.Parent.Cells(.Parent.Rows.Count, "E").End(xlUp).Row - 1).Offset(1).SpecialCells(xlCellTypeVisible).Rows.Delete '<--|delete visible rows other than the first ("headers") one
        End With
        .AutoFilterMode = False '<--| remove drop-down arrows
    End With

    Sheets("Data").Select
    Sheets("DATA").Range("G1:G" & Sheets("DATA").UsedRange.Rows.Count).Select
    Selection.Replace What:="-", Replacement:="", LookAt:=xlPart, _
        SearchOrder:=xlByRows, MatchCase:=False, SearchFormat:=False, _
        ReplaceFormat:=False
End sub

处理数据需要太多时间，是否有其他方法可以使处理速度更快

Answer 1

我经常要做的一件事是降低宏的速度，就是将文件扩展名更改为二进制文件。您仍然可以使用宏，它将文件减半。

在我的代码开头，我总是：

Sub GettingStarted()
    Application.ScreenUpdating = False
    Application.DisplayAlerts = False
End Sub

在代码末尾，我总是：

Sub BackToNormal()
    Application.ScreenUpdating = True
    Application.DisplayAlerts = True
End Sub

如果运行时不需要代码进行计算，则还可以包含

Application.Calculation = xlCalculationManual

完成后，请务必将其更改回

Application.Calculation = xlCalculationAutomatic

由于源文件太大，宏运行非常慢

1 个答案: