C# xpath 查询问题

2009-08-28 08:24:10 146 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

pengchengwanli 墨衍会员 · AI 创作全网分发关注 + 加入社区

【PVCodeNet】《Palm Vein Recognition Network Combining Transformer and CNN》 1]吴凯,沈文忠,贾丁丁,等.融合Transformer和CNN的手掌静脉识别网络[J].计算机工程与应用,2023,59(24):98-109. 阅读详情

我要查询：
条件：title='Harry Potter' 一定要注意，title值有单引号如何处理
目标：book的属性@category值是多少



<?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>

已经有的方法



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;

        }