Sök…
Introduktion
Till skillnad från .NET-ramverket inkluderar Visual Basic for Applications-biblioteket inte rutiner för sortering av matriser.
Det finns två typer av lösningar: 1) implementera en sorteringsalgoritm från grunden, eller 2) använda sorteringsrutiner i andra vanligt tillgängliga bibliotek.
Algoritmimplementering - snabb sortering på en endimensionell matris
Från VBA array sorteringsfunktion?
Public Sub QuickSort(vArray As Variant, inLow As Long, inHi As Long)
Dim pivot As Variant
Dim tmpSwap As Variant
Dim tmpLow As Long
Dim tmpHi As Long
tmpLow = inLow
tmpHi = inHi
pivot = vArray((inLow + inHi) \ 2)
While (tmpLow <= tmpHi)
While (vArray(tmpLow) < pivot And tmpLow < inHi)
tmpLow = tmpLow + 1
Wend
While (pivot < vArray(tmpHi) And tmpHi > inLow)
tmpHi = tmpHi - 1
Wend
If (tmpLow <= tmpHi) Then
tmpSwap = vArray(tmpLow)
vArray(tmpLow) = vArray(tmpHi)
vArray(tmpHi) = tmpSwap
tmpLow = tmpLow + 1
tmpHi = tmpHi - 1
End If
Wend
If (inLow < tmpHi) Then QuickSort vArray, inLow, tmpHi
If (tmpLow < inHi) Then QuickSort vArray, tmpLow, inHi
End Sub
Använda Excel-biblioteket för att sortera en endimensionell matris
Den här koden utnyttjar Sort
i Microsoft Excel-objektbiblioteket.
För ytterligare läsning, se:
Sub testExcelSort()
Dim arr As Variant
InitArray arr
ExcelSort arr
End Sub
Private Sub InitArray(arr As Variant)
Const size = 10
ReDim arr(size)
Dim i As Integer
' Add descending numbers to the array to start
For i = 0 To size
arr(i) = size - i
Next i
End Sub
Private Sub ExcelSort(arr As Variant)
' Ininitialize the Excel objects (required)
Dim xl As New Excel.Application
Dim wbk As Workbook
Set wbk = xl.Workbooks.Add
Dim sht As Worksheet
Set sht = wbk.ActiveSheet
' Copy the array to the Range object
Dim rng As Range
Set rng = sht.Range("A1")
Set rng = rng.Resize(UBound(arr, 1), 1)
rng.Value = xl.WorksheetFunction.Transpose(arr)
' Run the worksheet's sort routine on the Range
Dim MySort As Sort
Set MySort = sht.Sort
With MySort
.SortFields.Clear
.SortFields.Add rng, xlSortOnValues, xlAscending, xlSortNormal
.SetRange rng
.Header = xlNo
.Apply
End With
' Copy the results back to the array
CopyRangeToArray rng, arr
' Clear the objects
Set rng = Nothing
wbk.Close False
xl.Quit
End Sub
Private Sub CopyRangeToArray(rng As Range, arr)
Dim i As Long
Dim c As Range
' Can't just set the array to Range.value (adds a dimension)
For Each c In rng.Cells
arr(i) = c.Value
i = i + 1
Next c
End Sub
Modified text is an extract of the original Stack Overflow Documentation
Licensierat under CC BY-SA 3.0
Inte anslutet till Stack Overflow