Question

我正在尝试拆分字符串并获取拆分部分并将它们分配给变量。这适用于第一个变量，但我无法使第二个变量起作用。

For Each columnQuarter As DataColumn In dt.Columns
            Dim s As String = columnQuarter.ColumnName
            Dim words As String() = s.Split("-")
            Dim Year As String = words(0)
            Dim Quarter As String = words(1)
            Debug.WriteLine(Year)
            Debug.WriteLine(Quarter)

在“Dim Quarter As String = words（1）”行中，我收到错误代码“IndexOutofRangeException未处理。索引超出了数组的范围。”

ColumnName的一个例子是2012-Q1。

其他信息：

以下是我用于将列添加到dataTable的代码。正如您所看到的，我的前两列不包含“ - ”。

tickerColumn = New DataColumn("Ticker", Type.GetType("System.String"))
consistencyColumn = New DataColumn("Consistency", Type.GetType("System.Int32"))
dt.Columns.Add(tickerColumn)
dt.Columns.Add(consistencyColumn)

    With Me
        lr = Now.Year - 1901
        For i = 1 To lr
            column = New DataColumn
            column.DataType = System.Type.GetType("System.Int32")
            column.ColumnName = Now.Year - i & "-Q4"
            dt.Columns.Add(column)

            column = New DataColumn
            column.DataType = System.Type.GetType("System.Int32")
            column.ColumnName = Now.Year - i & "-Q3"
            dt.Columns.Add(column)

            column = New DataColumn
            column.DataType = System.Type.GetType("System.Int32")
            column.ColumnName = Now.Year - i & "-Q2"
            dt.Columns.Add(column)

            column = New DataColumn
            column.DataType = System.Type.GetType("System.Int32")
            column.ColumnName = Now.Year - i & "-Q1"
            dt.Columns.Add(column)
        Next i
    End With

Answer 1

由于您的前两列没有破折号，请尝试将其过滤掉：

For Each columnQuarter As DataColumn In dt.Columns
  Dim s As String = columnQuarter.ColumnName
    If s.Contains("-") Then
      Dim words As String() = s.Split("-")
      Dim Year As String = words(0)
      Dim Quarter As String = words(1)
      Debug.WriteLine(Year)
      Debug.WriteLine(Quarter)
    End If
Next

拆分字符串并为变量赋值

1 个答案: