LINQ to XML进行xml的操作

• linq to xml 提供了一种以元素为中心的理念。这样我们可以仅仅创建出XML的一个片段不包含元素和属性，而无需给出完整的XML文档。

具体的代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.SqlClient;
using System.Data;
using System.Xml;
 
namespace ConsoleApplication1
{
    class Program
    {
        class Book
        {
            public string Title;
            public string Publisher;
            public int Year;
            public Book(string title, string publisher, int year)
            {
                Title = title;
                Publisher = publisher;
                Year = year;
            }
        }
        
        static void Main()
        {
            //图书集合
            Book[] books = new Book[]{
            new Book("C# 入门","hahah",2017),
            new Book("C# 提高","xixi",2018),
            new Book("C# 深入","didi",2019)
            };

            XmlDocument doc = new XmlDocument();
            XmlElement root = doc.CreateElement("books");

            foreach(Book book in books)
            {
                //if(book.Year == 2017)
                //{
                    XmlElement element = doc.CreateElement("book");
                    element.SetAttribute("title", book.Title);

                    XmlElement publisher = doc.CreateElement("publisher");
                    publisher.InnerText = book.Publisher;
                    element.AppendChild(publisher);

                    root.AppendChild(element);
                //}
               
            }
            doc.AppendChild(root);
            doc.Save(Console.Out);
            Console.ReadLine();
        }
        
    }  
}

看看执行效果：

流程图如下