vb.net中split的疑问

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Public Class SplitTest
    Public Shared Sub Main()
        Dim words As String = "This is a list of words,with: a bit of punctuation" + _
                              vbTab + "and a tab character."
        Dim split As String() = words.Split(New [Char]() {" "c,","c,"."c,":"c,CChar(vbTab) })

        For Each s As String In  split
            If s.Trim() <> "" Then
                Console.WriteLine(s)
            End If
        Next s
    End Sub 'Main
End Class 'SplitTest
' The example displays the following output to the console:
'       This
'       is
'       a
'       list
'       of
'       words
'       with
'       a
'       bit
'       of
'       punctuation
'       and
'       a
'       tab
'       character


两个问题:

1、dim a( ) as string
dim a as string( )
两者有啥区别?





2、split后面的成员列表是分隔符的列表么?只见过一个分隔关键字的,没见过多个的,有知道的么?

    {" "c,CChar(vbTab) }
这几个成员是什么意思? 其中的c又是什么意思?

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