不可避免的遇到对接需要使用XML文档的第三方系统，某些节点内容特殊，序列化时需特殊处理，解决方案是实现IXmlSerializable接口。

/// 
    /// Person    /// 
    public class Person : IXmlSerializable    {        /// 
        /// PersonId        /// 
        public int PersonId { get; set; }        /// 
        /// PersonName        /// 
        public string PersonName { get; set; }        /// 
        /// Birthday        /// 
        public DateTime? Birthday { get; set; }        /// 
        /// Age        /// 
        public int Age { get; set; }        /// 
        /// Remarks        /// 
        public string Remarks { get; set; }        public XmlSchema GetSchema()        {            return default(XmlSchema);        }        public void ReadXml(XmlReader reader)        {            reader.ReadStartElement("Person");            this.PersonId = reader.ReadElementContentAsInt("PersonId","");            this.PersonName = reader.ReadElementContentAsString("PersonName","");            this.Birthday = reader.ReadElementContentAsDateTime("Birthday", "");            this.Age = reader.ReadElementContentAsInt("Age", "");            this.Remarks = reader.ReadElementContentAsString("Remarks", "");        }        public void WriteXml(XmlWriter writer)        {            writer.WriteStartElement(nameof(this.PersonId));            writer.WriteValue(this.PersonId);            writer.WriteEndElement();            writer.WriteStartElement(nameof(this.PersonName));            writer.WriteCData(this.PersonName);            writer.WriteEndElement();            writer.WriteStartElement(nameof(this.Birthday));            writer.WriteValue(this.Birthday);            writer.WriteEndElement();            writer.WriteStartElement(nameof(this.Age));            writer.WriteValue(this.Age);            writer.WriteEndElement();            writer.WriteStartElement(nameof(this.Remarks));            writer.WriteCData(this.Remarks);            writer.WriteEndElement();            }    }

序列化：

　　　　　　　XmlSerializer serializer = new XmlSerializer(typeof(Person));            Person person = new Person();            person.PersonId = 1;            person.PersonName = chinesenames[0];            person.Birthday = RandomUtils.RandomDateTime(DateTime.Now.AddYears(-40), DateTime.Now);            person.Age = DateTime.Now.Year - person.Birthday.GetValueOrDefault().Year;            person.Remarks = "https://blog.csdn.net/shuliuzh/article/details/49426711";            using(MemoryStream writer=new MemoryStream())            {                serializer.Serialize(writer, person);               string xml= Encoding.UTF8.GetString(writer.GetBuffer());                Console.WriteLine(xml);                File.WriteAllText("person.xml", xml, Encoding.UTF8);            }

结果：

     
       
      
       1
        
      
        
      
       1985-05-24T00:00:00
        
      
       33