在.NET中如何得到XML中中的href地址呢？其实，XmlDocument里已经包含了其中的信息。下面就是提取的例子，当然用正则表达式更好。
<![CDATA[
Dim a As New System.Xml.XmlDocument
a.LoadXml("<?xml version=""1.0"" encoding=""utf-8""?><?xml-stylesheet type='text/xsl' href='MainMenu.xsl'?><Menus/>")
Dim b As System.Xml.XmlProcessingInstruction
Dim c As String
Dim arr As System.Array
b = a.ChildNodes(1)
c = b.Value.ToString
arr = c.Split(" ")
c = arr(1)
arr = c.Split("=")
c = arr(1)
Label1.Text = c.Replace("'", "")
]]>
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