for each node in xml (vb.net)的问题

Dim xmlDoc As New XmlDocument()
xmlDoc.Load("path/to/xml/file.xml")

' 使用XPath表达式选择所有要遍历的节点
Dim nodeList As XmlNodeList = xmlDoc.SelectNodes("XPath/Expression")

' 遍历每个节点
For Each node As XmlNode In nodeList
    ' 在此处对节点进行操作，例如获取节点的属性或值
    Dim attributeValue As String = node.Attributes("AttributeName").Value
    Dim nodeValue As String = node.InnerText

    ' 其他操作...
Next

<library>
  <book id="1">
    <title>Book 1</title>
    <author>Author 1</author>
  </book>
  <book id="2">
    <title>Book 2</title>
    <author>Author 2</author>
  </book>
</library>

Dim xmlDoc As New XmlDocument()
xmlDoc.Load("path/to/books.xml")

Dim nodeList As XmlNodeList = xmlDoc.SelectNodes("/library/book")

For Each node As XmlNode In nodeList
    Dim title As String = node.SelectSingleNode("title").InnerText
    Dim author As String = node.SelectSingleNode("author").InnerText

    Console.WriteLine("Title: " & title)
    Console.WriteLine("Author: " & author)
    Console.WriteLine()
Next

Title: Book 1
Author: Author 1

Title: Book 2
Author: Author 2