XMLTextReader和XmlDocument读取XML文件的比较

19            while (reader.Read() )
20            {
21                bool exit =false;
22                switch(reader.NodeType)
23                {
24                    case XmlNodeType.Element :
25                        break;
26                    case XmlNodeType.Text :
27                        if (reader.Value=="last")
28                        {
29                            exit=true;
30                        }
31                        break;
32                    case XmlNodeType.EndElement  :
33                        break;
34                    default:
35                        break;
36                }
37                if(exit)
38                {
39                    return;
40                   
41                }
42
43            }
44        }
45
46        private static void XmlDocumentTest()
47        {
48            XmlDocument xd =new XmlDocument() ;
49            xd.Load(XmlFileName) ;
50            XmlNode node = xd.SelectSingleNode("/people/person[category='last']");
51            Console.Write(node.Name) ;
52        }
 

结果发现第一个耗时：
结果发现第二个耗时：

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