我有一个包含以下内容的csv文件Questions.csv
:
Question ID, A, B, C,
1, TestA, TestB, TestC
2, TestA, TestB, TestC
3, TestA, TestB, TestC
在我的代码中,我有以下方法从文件中读取并使用值创建一个Question对象,然后将Question对象添加到列表中。
Public Sub getQuestionsAndAnswers()
Dim allQuestions As New List(Of Question)
Using ioReader As New Microsoft.VisualBasic.FileIO.TextFieldParser("Resources/Questions.csv")
ioReader.TextFieldType = FileIO.FieldType.Delimited
ioReader.SetDelimiters(",")
'ioReader.ReadFields()
While Not ioReader.EndOfData
Dim arrCurrentRow As String() = ioReader.ReadFields()
Dim aQuestion As Question = New Question(arrCurrentRow(0), arrCurrentRow(1), arrCurrentRow(2))
allQuestions.Add(aQuestion)
End While
End Using
当我使用allQuestions.count()
检查列表的大小时,它等于8.为什么在应该只有4个时,列表中有8个项目?
答案 0 :(得分:0)
虽然不理想,但这对我有用:
Public Sub getQuestionsAndAnswers()
Dim allQuestions As New List(Of Question)
Using ioReader As New Microsoft.VisualBasic.FileIO.TextFieldParser("Resources/Questions.csv")
ioReader.TextFieldType = FileIO.FieldType.Delimited
ioReader.SetDelimiters(",")
'ioReader.ReadFields()
While Not ioReader.EndOfData
Dim arrCurrentRow As String() = ioReader.ReadFields(0).Split(",")
Dim aQuestion As Question = New Question(arrCurrentRow(0), arrCurrentRow(1), arrCurrentRow(2))
allQuestions.Add(aQuestion)
End While
End Using
End Sub
在我的代码中检查并使用它返回4个结果,虽然我不得不进行额外的拆分,因为没有它,代码引发了异常,因为分隔符实际上没有工作......