vb.net - 对于每个，下一个之前的下一个值

Question

我想知道是否可以在 Next 语句之前的 For Each 中获取 Next 值的值

如果我有这段代码:

For Each i As String In myStringArray
   'Do Something with i
Next

我可以有类似的东西吗，只有我正在做或检查下一个值:

For Each i As String In myStringArray
   'Do Something with i
   'Check the Next Value of i
Next

Answer 1

你可以反其道而行之，保留最后一项，但要对它采取行动:

Dim last As String = Nothing

For Each i As String In myStringArray
    If last IsNot Nothing Then
        ' Treat last as current, i as next
    End If

    last = i
Next