操作xml的类比较多，发现XElement类操作xml极其方便，下面列举一些操作方法

1、创建xml

XElement xml = new XElement("root",                 new XElement("Parent",                     new XElement("Me",                        new XElement("son"),                        new XElement("daughter")                )));

2、用Lambda表达式

List
     
       list = new List
      
       (){                "Parent","Me","son"            };            XElement xml=new XElement("root",                list.Select(x=>new XElement(x))                );            Console.WriteLine(xml);
      
     

Dictionary
     
       dic = new Dictionary
      
       ();            dic.Add("Name", "zhangsan");            dic.Add("Sex", "男");            dic.Add("Age", "18");            XElement xml=new XElement("root",                dic.Select(x=>new XElement(x.Key,x.Value))                );            Console.WriteLine(xml);
      
     

3、用字符串创建 ，这种我认为最为简单

string str = "
     
      
       张三
      
     ";            XElement xml = XElement.Parse(str);            Console.WriteLine(xml);

4、属性

XElement xml = new XElement("students",                 new XElement("student",                     new XAttribute("id", "1"),                     new XElement("name", "张三"),                     new XElement("age", 12)));

string str = "
     
      
       
        张三
       
       
        12
       
      
     ";            XElement xml = XElement.Parse(str);            Console.WriteLine(xml);

5、保存 xml

 

string str = "
     
      
       
        张三
       
       
        12
       
      
     ";            XElement xml = XElement.Parse(str);            xml.Save("test.xml");

6、加载

XElement xml = XElement.Load("test.xml");            Console.WriteLine(xml);

7、读取 xml

。。。。。{ XElement xml = XElement.Load("test.xml");                       ForXml(xml);        }        public static void ForXml(XElement x)        {            printXml(x);            foreach (var item in x.Elements())            {                ForXml(item);            }        }        public static void printXml(XElement x)        {            if (x == null)                return;            if (x.HasElements)            {                Console.WriteLine(x.Name);            }            else            {                Console.WriteLine(x.Name+":"+x.Value);            }            foreach (XAttribute attr in x.Attributes())            {                Console.WriteLine("\t"+attr.Name+":"+attr.Value);            }        }

8、查找某一值

XElement xml = XElement.Load("test.xml");            var item = xml.Descendants().Where(x =>              {                  var attr = (int?)x.Attribute("id");                  if (attr != null)                  {                      if (attr.Value == 1)                          return true;                  }                  return false;                  //if (x.Value == "张三")                  //{                  //    return true;                  //}                  //else                  //{                  //    return false;                  //}              });            foreach (XElement x in item)            {                ForXml(x);            }