String xmlString =
                @"<bookstore>
                    <book genre='autobiography' publicationdate='1981-03-22' ISBN='1-861003-11-0'>
                        <title>The Autobiography of Benjamin Franklin</title>
                        <author>
                            <first-name>Benjamin</first-name>
                            <last-name>Franklin</last-name>
                        </author>
                        <price>8.99</price>
                    </book>
                </bookstore>";

ParseXml(xmlString);


static void ParseXml(string xmlString)
{
             
            //创建一个StringBuilder对象用来保存从XML文件中解析出来的文本内容
            StringBuilder output = new StringBuilder();

            创建一个XML读取器
            using (XmlReader reader = XmlReader.Create(new StringReader(xmlString)))
            {
                reader.ReadToFollowing("book");
                reader.MoveToFirstAttribute();
                string genre = reader.Value;
                output.AppendLine("The genre value: " + genre);

                reader.ReadToFollowing("title");
                output.AppendLine("Content of the title element: " + reader.ReadElementContentAsString());
             }

            
             Console.WriteLine(output);
}