【发布时间】：2018-10-01 07:53:19
【问题描述】：
我在 VBA 中制作了两个不同的脚本来计算 CSV 中包含的单词的频率。两个脚本都运行良好，但我得到每个单词的不同数字，我不知道为什么。以下是导致差异出现的一些步骤
脚本 1：
Sub Dict_Array_1()
Dim Wb As Workbook, Wb1 As Workbook
Dim Ws As Worksheet, Ws1 As Worksheet
Dim Fd As Office.FileDialog
Dim StrFile As String
Dim i As Long, a As Long, LastR As Long
Dim Arr() As Variant
Dim Ban_() As String, T As String
Dim Ban As Object, Dict As Object
Dim Carac As Variant, w As Variant, Key As Variant
Application.ScreenUpdating = False
Application.Calculation = xlCalculationManual
Application.DisplayStatusBar = False
Application.EnableEvents = False
ActiveSheet.DisplayPageBreaks = False
Application.DisplayAlerts = False
Set Wb = ActiveWorkbook
Set Ws = Wb.ActiveSheet
'---------- CSV ---------------------------------------------------------------------------------------------------------------
Set Fd = Application.FileDialog(msoFileDialogFilePicker)
With Fd
.AllowMultiSelect = False
.Title = "Select doc"
.Filters.Clear
.Filters.Add "Doc CSV (*.csv)", "*.csv"
If .Show Then
On Error GoTo ErrOpen 'ignore this
Set Wb1 = Workbooks.Open(.SelectedItems(1), ReadOnly:=True, Local:=False)
On Error GoTo 0
Set Ws1 = Wb1.Sheets(1)
With Ws1
LastR = .Cells(.Rows.Count, "S").End(xlUp).Row
Arr = .Range(Cells(1, 19), Cells(LastR, 19)).Value2
End With
Wb1.Close 0
Set Wb1 = Nothing
Set Ws1 = Nothing
Else
Exit Sub
End If
End With
'---------------------------------------- COUNT ----------------------------------------------------------------------------------------------------
'Array with words i want to ban
Ban_ = Split("word1,word2,word3,etc", ",")
'Array with caract i want to ban
Carac = Array(".", ",", ";", ":", "!", "#", "$", "%", "&", "(", ")", "- ", "_", "--", "+", _
"=", "~", "/", "\", "{", "}", "[", "]", """", "?", "*", ">>", "»", "«")
Set Ban = CreateObject("Scripting.Dictionary") 'need late binding
Ban.CompareMode = vbTextCompare 'case insensitive
For i = 0 To UBound(Ban_)
Ban.Add Ban_(i), 1
Next i
Erase Ban_
'Dict to count words
Set Dict = CreateObject("Scripting.Dictionary")
Dict.CompareMode = vbTextCompare 'case insensitive
For a = 1 To UBound(Arr, 1)
If Not IsError(Arr(a, 1))
T = Arr(a, 1)
For i = 0 To UBound(Carac)
T = Replace(T, Carac(i), "", , , vbTextCompare)
Next i
T = Application.Trim(T)
For Each w In Split(T, " ")
If Not Ban.exists(w) Then
If Not Dict.exists(w) Then
Dict.Add w, 1
Else
Dict.Item(w) = Dict.Item(w) + 1
End If
End If
Next w
End If
Next a
Exit Sub
Erase Arr
Erase Carac
Set Ban = Nothing
脚本2基本相同，唯一不同的是我以另一种方式访问.CSV：
Sub Dict_ADODB()
Dim Wb As Workbook, Wb1 As Workbook
Dim Ws As Worksheet, Ws1 As Worksheet
Dim Fd As Office.FileDialog
Dim StrFile As String
Dim i As Long, a As Long, LastR As Long
Dim Arr() As Variant
Dim Ban_() As String, T As String
Dim Ban As Object, Dict As Object
Dim Carac As Variant, w As Variant, Key As Variant
Dim ObjC As Object, ObjR As Object 'Object Connection / Object Recordset
Const adOpenStatic = 3
Const adLockOptimistic = 3
Application.ScreenUpdating = False
Application.Calculation = xlCalculationManual
Application.DisplayStatusBar = False
Application.EnableEvents = False
ActiveSheet.DisplayPageBreaks = False
Application.DisplayAlerts = False
Set Wb = ActiveWorkbook
Set Ws = Wb.ActiveSheet
'---------- CSV ---------------------------------------------------------------------------------------------------------------
Set Fd = Application.FileDialog(msoFileDialogFilePicker)
With Fd
.AllowMultiSelect = False
.Title = "Select doc"
.Filters.Clear
.Filters.Add "Doc CSV (*.csv)", "*.csv"
If .Show Then
'----------- ADODB ---
Set ObjC = CreateObject("ADODB.Connection")
Set ObjR = CreateObject("ADODB.RecordSet")
On Error GoTo ErrOpen
ObjC.Open "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=" & .InitialFileName & ";" & _
"Extended Properties=""text;HDR=YES;FMT=Delimited;CharacterSet=65001"""
On Error GoTo 0
'I just need one column
ObjR.Open "SELECT Message FROM " & Right(.SelectedItems(1), Len(.SelectedItems(1)) - InStrRev(.SelectedItems(1), "\")) & _
" WHERE Message IS NOT NULL", _
ObjC, adOpenStatic, adLockOptimistic
Arr = ObjR.GetRows()
ObjR.Close
ObjC.Close
Set ObjR = Nothing
Set ObjC = Nothing
Else
Exit Sub
End If
End With
'---------------------------------------- COUNT ----------------------------------------------------------------------------------------------------
'Array with word I don't need
Ban_ = Split("word1,word2", ",")
Carac = Array(".", ",", ";", ":", "!", "#", "$", "%", "&", "(", ")", "- ", "_", "--", "+", _
"=", "~", "/", "\", "{", "}", "[", "]", """", "?", "*", ">>", "»", "«")
Set Ban = CreateObject("Scripting.Dictionary")
Ban.CompareMode = vbTextCompare
For i = 0 To UBound(Ban_)
Ban.Add Ban_(i), 1
Next i
Erase Ban_
Set Dict = CreateObject("Scripting.Dictionary")
Dict.CompareMode = vbTextCompare 'case insensitive
For a = 0 To UBound(Arr, 2)
If Not IsError(Arr(0, a)) Then
T = Arr(0, a)
For i = 0 To UBound(Carac)
T = Replace(T, Carac(i), "", , , vbTextCompare)
Next i
T = Application.Trim(T)
For Each w In Split(T, " ")
If Not Ban.exists(w) Then
If Not Dict.exists(w) Then
Dict.Add w, 1
Else
Dict.Item(w) = Dict.Item(w) + 1
End If
End If
Next w
End If
Next a
Erase Arr
Erase Carac
Set Ban = Nothing
Exit Sub
给你。当我执行 dict.count 时，我确实发现条目的总数是不同的，这只是部分地通过使用“WHERE Message IS NOT NULL”来解释。任何想法为什么将不胜感激！
【问题讨论】：
-
你能在每次创建后
Debug.Print UBound(Arr)看看这两个数组的大小是多少？ -
行尾分隔符不一致？
-
Ubound(Arr) 与脚本 1 = 299 988 ； UBound(Arr, 2) with Script 2 =282 975 （注意：我使用 UBound(Arr, 2)，因为 GetRows 将记录从记录集中复制到二维数组中，并且“第一个下标标识字段，第二个标识记录号”）。
-
@LoBellin 所以我猜脚本 1 返回的字数比脚本 2 高？
标签： arrays excel ms-access vba