优化Vba代码

时间:2017-11-10 07:49:18

标签: vba excel-vba parsing href innertext

有一个解析网站的程序。程序运行良好,但时间太长。我想简化/加速它。请告诉我,也许在这个问题上有任何专门的网站?如有任何帮助,我将不胜感激。

程序如何运作:

  1. 首先,通过超链接,程序进入网站,在那里找到某个元素表

  2. 然后取出每个元素的“href”,将其转换为超链接,然后将其插入到第一个表格的Excel中

  3. 然后它提取每个元素的文本并将其插入到第二个表中的Excel
  4. 然后它遍历1-st和2-nd表的元素,这样在第3个表中每个元素都包含一个“超链接+文本”

     Sub Softгиперссылки()
      Application.DisplayAlerts = False
    
    
      Call mainмассивы
    
      Application.DisplayAlerts = True
    End Sub
    
    
    Sub mainмассивы()
     Dim r As Range
     Dim firstAddress As String
     Dim iLoop As Long
     Dim book1 As Workbook
     Dim sheetNames(1 To 19) As String
     Dim Ssilka As String
    
    
     sheetNames(1) = "Лист1"
     sheetNames(2) = "Лист2"
     sheetNames(3) = "Лист3"
     sheetNames(4) = "Лист4"
     sheetNames(5) = "Лист5"
     sheetNames(6) = "Лист6"
     sheetNames(7) = "Лист7"
     sheetNames(8) = "Лист8"
     sheetNames(9) = "Лист9"
     sheetNames(10) = "Лист10"
     sheetNames(11) = "Лист11"
     sheetNames(12) = "Лист12"
     sheetNames(13) = "Лист13"
     sheetNames(14) = "Лист14"
     sheetNames(15) = "Лист15"
     sheetNames(16) = "Лист16"
     sheetNames(17) = "Лист17"
     sheetNames(18) = "Лист18"
     sheetNames(19) = "Лист19"
    
     'пропускаем ошибку
    
      Set book1 = Workbooks.Open("E:\Super M\Проект ставки\Поиск решения\Усов 7\Условия для андердогов\6.xlsm")
    
      iLoop = -1
    
     With book1.Worksheets("Лист1").Range("R34:R99")
    
     For Each r In .Rows
         If r.Value = 1 Then
    
            iLoop = iLoop + 1
            Ssilka = r.Offset(, -13).Hyperlinks.Item(1).Address
            .Parent.Parent.Worksheets(sheetNames(1)).Activate
            .Parent.Parent.Save
            extractTable Ssilka, book1, iLoop
    
          End If
      Next r
    
     End With
     book1.Save
     book1.Close
     Exit Sub
    
    
    End Sub
    
    
      Function extractTable(Ssilka As String, book1 As Workbook, iLoop As Long)
      Dim oDom As Object, oTable As Object, oRow As Object
      Dim iRows As Integer, iCols As Integer
      Dim x As Integer, y As Integer
      Dim data()
      Dim oHttp As Object
      Dim oRegEx As Object
      Dim sResponse As String
      Dim oRange As Range
      Dim Perem1 As String
      Dim Perem2 As String
    
    
    
     'для гиперссылки
    
     ' get page
      Set oHttp = CreateObject("MSXML2.XMLHTTP")
      oHttp.Open "GET", Ssilka, False
      oHttp.Send
    
     ' cleanup response
      sResponse = StrConv(oHttp.responseBody, vbUnicode)
      Set oHttp = Nothing
    
     sResponse = Mid$(sResponse, InStr(1, sResponse, "<!DOCTYPE "))
    
     Set oRegEx = CreateObject("vbscript.regexp")
    With oRegEx
    .MultiLine = True
    .Global = True
    .IgnoreCase = False
    .Pattern = "<(script|SCRIPT)[\w\W]+?</\1>"
    sResponse = .Replace(sResponse, "")
    End With
    Set oRegEx = Nothing
    
     ' create Document from response
      Set oDom = CreateObject("htmlFile")
      oDom.Write sResponse
      DoEvents
    
      ' table with results, indexes starts with zero
    Set oTable = oDom.getelementsbytagname("table")(3)
    
    DoEvents
    
    iRows = oTable.Rows.Length
    iCols = oTable.Rows(1).Cells.Length
    
    ' first row and first column contain no intresting data
    ReDim data(1 To iRows - 1, 1 To iCols - 1)
    
    ' fill in data array
    For x = 1 To iRows - 1
    Set oRow = oTable.Rows(x)
    
    For y = 1 To iCols - 1
         If oRow.Cells(y).Children.Length > 0 Then
            data(x, y) = oRow.Cells(y).getelementsbytagname("a")(0).getattribute("href")
    
        End If
    
    Next y
     Next x
    
     Set oRow = Nothing
     Set oTable = Nothing
     Set oDom = Nothing
    
      ' put data array on worksheet
    
     Set oRange = book1.ActiveSheet.Cells(110, 26 + (iLoop * 21)).Resize(iRows - 1, iCols - 1)
     oRange.NumberFormat = "@"
     oRange.Value = data
     oRange.Replace What:="about:", Replacement:="http://allscores.ru/soccer/"
     Set oRange = Nothing
    
      '!!!! для текста
    
     ' get page
     Set oHttp = CreateObject("MSXML2.XMLHTTP")
     oHttp.Open "GET", Ssilka, False
     oHttp.Send
    
    ' cleanup response
    sResponse = StrConv(oHttp.responseBody, vbUnicode)
    Set oHttp = Nothing
    
    sResponse = Mid$(sResponse, InStr(1, sResponse, "<!DOCTYPE "))
    
    Set oRegEx = CreateObject("vbscript.regexp")
    With oRegEx
    .MultiLine = True
    .Global = True
    .IgnoreCase = False
    .Pattern = "<(script|SCRIPT)[\w\W]+?</\1>"
    sResponse = .Replace(sResponse, "")
    End With
    Set oRegEx = Nothing
    
       ' create Document from response
       Set oDom = CreateObject("htmlFile")
       oDom.Write sResponse
        DoEvents
    
       ' table with results, indexes starts with zero
       Set oTable = oDom.getelementsbytagname("table")(3)
    
       DoEvents
    
       iRows = oTable.Rows.Length
       iCols = oTable.Rows(1).Cells.Length
    
      ' first row and first column contain no intresting data
       ReDim data(1 To iRows - 1, 1 To iCols - 1)
    
       ' fill in data array
       For x = 1 To iRows - 1
       Set oRow = oTable.Rows(x)
    
      For y = 1 To iCols - 1
         If oRow.Cells(y).Children.Length > 0 Then
            data(x, y) = oRow.Cells(y).innerText
    
        End If
    
    Next y
    Next x
    
    Set oRow = Nothing
    Set oTable = Nothing
    Set oDom = Nothing
    
     ' put data array on worksheet
    
    Set oRange = book1.ActiveSheet.Cells(185, 26 + (iLoop * 21)).Resize(iRows - 1, iCols - 1)
     oRange.NumberFormat = "@"
     oRange.Value = data
    
      Set oRange = Nothing
    
      '!!!!! цикл для текст+гиперссылка
    
    
    For A = 0 To 4
    For B = 0 To 65
    
     Perem1 = book1.ActiveSheet.Cells(110 + B, (26 + (iLoop * 21)) + A).Value
     Perem2 = book1.ActiveSheet.Cells(185 + B, (26 + (iLoop * 21)) + A).Value
    
      book1.ActiveSheet.Hyperlinks.Add Anchor:=Cells(34 + B, (26 + (iLoop * 21)) + A), Address:=Perem1, TextToDisplay:=Perem2
     Next
     Next
    
    
    
    End Function
    

1 个答案:

答案 0 :(得分:2)

可以采取一些措施来提高效率,但这可能更适合在CodeReview上进行。

但是,我会提到你使用后期变量。通过早期绑定,您将获得更快的性能:

'Late-bound variable declaration and creation
Dim oRegExp As Object
Set oRegEx = CreateObject("vbscript.regexp")
With oRegEx
   '....
End With

'Late-bound reference only:
'No variable declaration required, the variable only survives as long as the With Block
With CreateObject("vbscript.regexp")
    '....
End With

'Early-bound - Add a reference to Microsoft VBScript Regular Expressions 5.5
'This is the fastest and most efficient use of a new RegExp object, and you get intellisense in the VBE
With New RegExp
    '....
End With

您还应该考虑为Visual Basic编辑器安装免费的开源Rubberduck VBA加载项(免责声明 - 我的贡献者),它将为您提供更多建议和优化,它将会自动缩进代码以提高可读性。

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