关于文件保存/关闭时报错：文件正由另一进程使用，因此该进程无法访问此文件。

1 reader.Close();

 1 using System;
 2 using System.Xml;
 3 
 4 namespace XMLTest
 5 {
 6     class MyXmlReader
 7     {
 8         public XmlDocument Doc;
 9         public string Path;
10         public XmlReader reader;
11 
12         public MyXmlReader(string path)
13         {
14             Path = path;
15             Doc = new XmlDocument();
16             XmlReaderSettings setting = new XmlReaderSettings();
17             setting.IgnoreComments = true;
18             reader = XmlReader.Create(Path, setting);
19             Doc.Load(reader);
20             reader.Close();
21         }
22 
23         public XmlNodeList GetNodeList()
24         {
25             XmlElement root = Doc.DocumentElement;
26             return root.ChildNodes;
27         }
28 
29         public void SaveDoc(string path)
30         {
31             Doc.Save(path);
32         }
33     }
34 
35     class Program
36     {
37         static void Main(string[] args)
38         {
39             string path = @"F:\C#\XMLTest\XMLTest\NewOne.xml";
40             MyXmlReader myReader = new MyXmlReader(path);
41             XmlNodeList nodeList = myReader.GetNodeList();
42             nodeList[1].Attributes["name"].Value = "adschbgdsc";
43             myReader.SaveDoc(path);
44             Console.Write("Save Successfully");
45             Console.ReadKey();
46         }
47     }
48 }