只将数组中的指定列写入工作表
- 调整constant，包括workbook和
DataColumns。
-
first Sub 将DataColumns 中指定的列写入工作表。
-
second Sub 将所有列写入工作表。
- 正在调用其余部分。
-
ByRef（非必要）用于指出值
正在引用的变量中进行修改。
守则
Option Explicit
Sub writeColumns()
' Text
Const FilePath As String = "G:\Data\Baby Names\yob2018.txt"
Const LineDelimiter As String = vbCrLf
Const FieldDelimiter As String = ","
' Worksheet
Const wsId As Variant = "Sheet1"
Const FirstCell As String = "A1"
Dim wb As Workbook: Set wb = ThisWorkbook
Dim DataColumns() As Variant: DataColumns = Array(3, 1)
' Write from Text File to Data Array.
Dim Data() As String
getTextToArray Data, FilePath, LineDelimiter, FieldDelimiter
' Write from Data Array to Columns Array.
Dim Cols() As Variant: Cols = getColumns(Data, DataColumns)
' Write from Columns Array to Columns Range.
writeWorksheet Cols, wb, wsId, FirstCell
End Sub
Sub writeAll()
' Text
Const FilePath As String = "G:\Data\Baby Names\yob2018.txt"
Const LineDelimiter As String = vbCrLf
Const FieldDelimiter As String = ","
' Worksheet
Const wsId As Variant = "Sheet1"
Const FirstCell As String = "A1"
Dim wb As Workbook: Set wb = ThisWorkbook
' Write from Text File to Data Array.
Dim Data() As String
getTextToArray Data, FilePath, LineDelimiter, FieldDelimiter
' Write from Data Array to Data Range.
writeWorksheet Data, wb, wsId, FirstCell
End Sub
Sub getTextToArray(ByRef Data() As String, _
ByVal FilePath As String, _
Optional ByVal LineDelimiter As String = vbCrLf, _
Optional ByVal FieldDelimiter As String = " ")
' Write from Text File to Text Variable.
Dim Text As String: getText Text, FilePath
' Write from Text Variable to Lines Array.
Dim Lines() As String: getLines Lines, Text, LineDelimiter
' Split Lines Array to Data Array.
getFields Data, Lines, FieldDelimiter
End Sub
Sub getText(ByRef Text As String, _
ByVal TextFilePath As String)
Open TextFilePath For Binary As #1
Text = Space$(LOF(1)): Get #1, , Text
Close #1
End Sub
Sub getLines(ByRef Lines() As String, _
ByVal Text As String, _
Optional ByVal LineDelimiter As String = vbCrLf)
Lines = Split(Text, LineDelimiter)
removeLastEmptyLines Lines
End Sub
Sub removeLastEmptyLines(ByRef Lines() As String)
If UBound(Lines) = -1 Then Exit Sub
Dim c As Long, ub As Long: ub = UBound(Lines)
For c = ub To LBound(Lines) Step -1
If Lines(c) = Empty Then
ub = ub - 1: ReDim Preserve Lines(ub)
Else
Exit For
End If
Next c
End Sub
Sub getFields(ByRef Data() As String, _
Lines() As String, _
Optional ByVal FieldDelimiter As String = " ")
Dim Fields() As String: Fields = Split(Lines(0), FieldDelimiter)
Dim ubL As Long: ubL = UBound(Lines) + 1
Dim ubF As Long: ubF = UBound(Fields) + 1
ReDim Data(1 To ubL, 1 To ubF)
Dim r As Long, c As Long
For r = 1 To ubL
Fields = Split(Lines(r - 1), FieldDelimiter)
For c = 1 To ubF
Data(r, c) = Fields(c - 1)
Next c
Next r
End Sub
Function getColumns(Data() As String, _
DataColumns() As Variant) _
As Variant
Dim ubD As Long: ubD = UBound(Data)
Dim ubC As Long: ubC = UBound(DataColumns)
Dim Result As Variant: ReDim Result(1 To UBound(Data), 1 To ubC + 1)
Dim r As Long, c As Long
For r = 1 To ubD
For c = 0 To ubC
Result(r, c + 1) = Data(r, DataColumns(c))
Next c
Next r
getColumns = Result
End Function
Sub writeWorksheet(Data As Variant, WorkbookObject As Workbook, _
Optional ByVal WorksheetNameOrIndex As Variant = "Sheet1", _
Optional ByVal FirstCellAddress As String = "A1")
With WorkbookObject.Worksheets(WorksheetNameOrIndex).Range(FirstCellAddress)
.Resize(UBound(Data), UBound(Data, 2)).Value = Data
End With
End Sub