如何使用VB腳本對Excel工作表中的行進行排序並打印到文件？

Question

我有一個名為 student 的表。 我正在嘗試根據他的標記打印相應的學生姓名。 我想使用 Excel 宏打印到文件。

我的表格包含標題為學生姓名 1 、 2 、 3 等。以及相應的標記為 1 、 2 、 3 、 4 和 "-" 。

我想在 VB 中編寫函數來對每個主題（0,1,2,3,...7）的相應行進行排序，並將值打印到文件中。

輸出（文件.txt）

NULL,NULL,NULL,NULL,NULL
STUDENT 2 ,STUDENT 5 ,STUDENT 4 ,NULL,NULL
STUDENT 4,STUDENT 5,NULL,NULL,NULL
etc.. 

一行中的列應按升序排序，如果任何列中存在“-”，則應將其打印為 NULL 作為剩余值。

我已經寫了

Sub test()
'create and write into file txt
Dim fso As Object

Set fso = CreateObject("Scripting.FileSystemObject")

    Dim Fileout As Object
    Set Fileout = fso.CreateTextFile("MyFile.txt", True, True)

    'Write logic for sorting 

    Fileout.Close

End Sub

如何使用 VB 腳本在 excel 中排序並打印這些行？

Answer 1

這是一種實現方式，根據您的需求進行調整：

' Naive O(N^2) sort
Sub Sort(arr() As Long, students() As String)
    If UBound(arr) <= 1 Then Exit Sub

    Dim i As Long, j As Long
    For i = 0 To UBound(arr) - 1
        ' Look for the minimum index in the sub-array going from i
        Dim indexOfMin As Long
        indexOfMin = i
        For j = i To UBound(arr)
            If arr(j) < arr(indexOfMin) Then
                indexOfMin = j
            End If
        Next j
        ' Put the minimum mark at the beginning of the sub-array
        Dim tmp As Variant
        tmp = arr(i)
        arr(i) = arr(indexOfMin)
        arr(indexOfMin) = tmp
        ' Put the student with the minimum value at the beginning of the students sub-array
        tmp = students(i)
        students(i) = students(indexOfMin)
        students(indexOfMin) = tmp
    Next i
End Sub

Sub SortAndSave()
    Dim dataRange As Range
    Set dataRange = Range("A1:F9")

    Dim data As Variant
    data = dataRange.Value

    Dim NSubject As Long, NStudents As Long
    NSubject = UBound(data, 1) - 1
    NStudents = UBound(data, 2) - 1

    Dim text As String
    Dim i As Long, j As Long
    For i = 1 To NSubject
        ' Read marks and students names
        Dim subjectMarks() As Long
        ReDim subjectMarks(0 To NStudents - 1)
        Dim students() As String
        ReDim students(0 To NStudents - 1)
        For j = 1 To NStudents
            ' Use a big enough number 999 so that students with no mark will be pushed to the end
            subjectMarks(j - 1) = IIf(data(i + 1, j + 1) <> "-", data(i + 1, j + 1), 999)
            students(j - 1) = data(1, j + 1)
        Next j

        ' Sort marks and students
        Sort subjectMarks, students

        ' Build display row for subject
        Dim row As String
        row = ""
        For j = 1 To NStudents
            ' If there is a mark render the student name
            If subjectMarks(j - 1) <> 999 Then
                row = row & students(j - 1)
            ' Otherwise render NULL
            Else
                row = row & "NULL"
            End If
            ' Add a comma if not the latest
            If j <> NStudents Then
                row = row & ","
            End If
        Next j
        text = text & row
        ' Add a \r\n if not the latest
        If i <> NSubject Then
            text = text & vbCrLf
        End If
    Next i
End Sub

結果：

NULL,NULL,NULL,NULL,NULL
STUDENT 2,STUDENT 5,STUDENT 4,NULL,NULL
STUDENT 4,STUDENT 5,NULL,NULL,NULL
STUDENT 4,STUDENT 5,NULL,NULL,NULL
STUDENT 2,STUDENT 5,STUDENT 4,NULL,NULL
STUDENT 5,STUDENT 4,STUDENT 2,STUDENT 1,NULL
STUDENT 5,STUDENT 4,STUDENT 2,STUDENT 1,NULL
STUDENT 4,STUDENT 5,NULL,NULL,NULL