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<?xml version="1.0" encoding="ISO-8859-1"?>
<bookstore>
<book category="COOKING">
<title lang="en">'Everyday Italian'</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="CHILDREN">
<title lang="en">'Harry Potter'</title>
<title lang="en">Everyday Italian</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
using System.Xml;
using System.Xml.XPath;
public string GetData(string strsql)
{
XPathNavigator nav;
XPathDocument docNav;
XPathNodeIterator NodeIter;
string strRetrun = string.Empty;
nav = docNav.CreateNavigator();
strExpression = "";//在这儿写查询语句
MessageBox.Show(strExpression);
NodeIter = nav.Select(strExpression);
while (NodeIter.MoveNext())
{
strRetrun += NodeIter.Current.Value;
};
return strRetrun;
}