XmlReaderSettings settings = new XmlReaderSettings();
            //添加模式
            settings.Schemas.Add(null, @"..\..\books.xsd");
            //在读取时执行验证
            settings.ValidationType = ValidationType.Schema;
            //不处理异常，而是显示验证失败信息
            settings.ValidationEventHandler += new System.Xml.Schema.ValidationEventHandler(settings_ValidationEventHandler);
            //创建含有XmlReaderSettings对象的XmlReader读取器
            XmlReader reader = XmlReader.Create(@"..\..\books.xml", settings);
            while (reader.Read())
            {
                if (reader.NodeType == XmlNodeType.Text)
                {
                    Console.WriteLine(reader.Value);
                }
            }
            Console.ReadLine();