Visual Basic 中读取逗号分隔的文本文件

Dim currentRow As String()
   While Not MyReader.EndOfData
      Try
         currentRow = MyReader.ReadFields()
         Dim currentField As String
         For Each currentField In currentRow
            MsgBox(currentField)
         Next
         Catch ex As Microsoft.VisualBasic.
                     FileIO.MalformedLineException
           MsgBox("Line " & ex.Message &
           "is not valid and will be skipped.")
     End Try

https://docs.microsoft.com/zh-cn/dotnet/visual-basic/developing-apps/programming/drives-directories-files/how-to-read-from-text-files-with-multiple-formats
https://docs.microsoft.com/zh-cn/dotnet/visual-basic/developing-apps/programming/drives-directories-files/how-to-read-from-comma-delimited-text-files