C#通过xpath查找xml指定元素的方法

<?xml version="1.0"?>
<order id="2004-01-30.195496">
 <client id="ros-930252034">
 <name>remarkable office supplies</name>
 </client>
 <items>
 <item id="1001">
  <name>electronic protractor</name>
  <price>42.99</price>
 </item>
 <item id="1002">
  <name>invisible ink</name>
  <price>200.25</price>
 </item>
 </items>
</order>

using system;
using system.xml;
public class xpathselectnodes {
 private static void main() {
  // load the document.
  xmldocument doc = new xmldocument();
  doc.load("orders.xml");
  xmlnodelist nodes = doc.selectnodes("/order/items/item/name");
  foreach (xmlnode node in nodes) {
   console.writeline(node.innertext);
  }
  console.readline();
 }
}

electronic protractor
invisible ink