创建XML文件

[初学C#的菜菜鸟]

大家好，初学XML，请大家多指教。
为了得到第1张图片所示的XML内容，编写了第2张图片所示的代码。


因为<Point>有数千个，一个个写太麻烦了。point值已经保存在数组里，请问如何利用循环实现？

[XBodhi.]

一会给你写个代码吧

[XBodhi.]

已经测试过了。

namespace ConsoleApp2
{ 
    using System.Xml;
    using System.Collections.Generic;
    class Program
    {
        static void Main(string[] args)
        {
            //初始化测试数据
            Folder folder = new Folder() { name = "MYNAEM" };
            IList<Placemark> placemarks = new List<Placemark>();
            placemarks.Add(new Placemark() { name = "20177", Point = new Point() { coordinates = "99.9298,26.51303" } });
            placemarks.Add(new Placemark() { name = "20178", Point = new Point() { coordinates = "99.9312,26.51302" } });
            placemarks.Add(new Placemark() { name = "20179", Point = new Point() { coordinates = "99.9358,26.51305" } });
            folder.Placemarks = placemarks;

            //构建XML
            XmlDocument xmlDocument = new XmlDocument();

            XmlDeclaration xmlDeclaration = xmlDocument.CreateXmlDeclaration("1.0", "UTF-8",null);
            xmlDocument.AppendChild(xmlDeclaration);

            XmlNode folderNode = xmlDocument.CreateNode(XmlNodeType.Element, "Folder", null);

            XmlNode folderNameNode = xmlDocument.CreateNode(XmlNodeType.Element, "name", null);
            folderNameNode.InnerText = folder.name;
            folderNode.AppendChild(folderNameNode);

            foreach (var placemark in placemarks)
            {
                XmlNode placemarkNode = xmlDocument.CreateNode(XmlNodeType.Element, "Placemark", null);

                XmlNode placemarkNameNode = xmlDocument.CreateNode(XmlNodeType.Element, "name", null);
                placemarkNameNode.InnerText = placemark.name;

                XmlNode pointNode = xmlDocument.CreateNode(XmlNodeType.Element, "Point", null);

                XmlNode coordinatesNode = xmlDocument.CreateNode(XmlNodeType.Element, "coordinates", null);
                coordinatesNode.InnerText = placemark.Point.coordinates;
                pointNode.AppendChild(coordinatesNode);

                placemarkNode.AppendChild(placemarkNameNode);
                placemarkNode.AppendChild(pointNode);

                folderNode.AppendChild(placemarkNode);
            }
            xmlDocument.AppendChild(folderNode);
            xmlDocument.Save("D:\\my.xml");
        }
    }


    class Folder
    {
        public string name { get; set; }

        public IList<Placemark> Placemarks { get; set; }
    }

    class Placemark
    {
        public string name { get; set; }

        public Point Point { get; set; }
    }

    class Point
    {
        public string coordinates { get; set; }
    }
}

[XBodhi.]

还有一种通用的 方法就是 用反射直接 序列化。