用C#讀取xml有很多方式，這里我就先使用XmlDocument讀取Xml，用一段代碼遍歷所有元素，并打印student的所有屬性和子節(jié)點(diǎn)的值。
1、school.xml，如下：
<?xml version="1.0" encoding="UTF-8"?>
<!--啟明培訓(xùn)學(xué)校學(xué)生信息：
1、一年級學(xué)生
2、二年級學(xué)生
-->
<school name="啟明培訓(xùn)學(xué)校">
<grades>
<grade id="1" name="一年級">
<classes>
<class id="101" name="一班">
<teachers>
<teacher teach="語文"><teacherName><![CDATA[王軍]]></teacherName></teacher>
<teacher teach="數(shù)學(xué)"><teacherName><![CDATA[周杰]]></teacherName></teacher>
</teachers>
<students>
<student id="10101">
<name>亢陽</name>
<sex>女</sex>
</student>
<student id="10102">
<name>田鎮(zhèn)南</name>
<sex>男</sex>
</student>
<student id="10103">
<name>劉嘉</name>
<sex>女</sex>
</student>
</students>
</class>
</classes>
</grade>
<grade id="2" name="二年級">
<classes>
<class id="201" name="二班">
<teachers>
<teacher teach="語文"><teacherName><![CDATA[胡軍]]></teacherName></teacher>
<teacher teach="數(shù)學(xué)"><teacherName><![CDATA[王潔]]></teacherName></teacher>
</teachers>
<students >
<student id="20101">
<name>胡艷</name>
<sex>女</sex>
</student>
<student id="20102">
<name>張三</name>
<sex>男</sex>
</student>
<student id="20103">
<name>李四</name>
<sex>女</sex>
</student>
</students>
</class>
</classes>
</grade>
</grades>
</school>
2、XMLReader.cs （我用的是控制臺應(yīng)用程序，直接附上全部代碼吧）
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5
6 using System.Xml;
7
8 namespace XMLReader
9 {
10 class XMLReader
11 {
12 static void Main(string[] args)
13 {
14 string xmlFilePath = "school.xml";
15 XmlDocument doc = new XmlDocument();
16 doc.Load(xmlFilePath);
17
18 //學(xué)校 使用xpath表達(dá)式選擇文檔中所有的schoo的子節(jié)點(diǎn)
19 XmlNodeList schoolNodeList = doc.SelectNodes("/school");
20 if (schoolNodeList != null)
21 {
22 foreach (XmlNode schoolNode in schoolNodeList)
23 {
24 //通過Attributes獲得屬性名為name的屬性
25 string schoolName = schoolNode.Attributes["name"].Value;
26 Console.WriteLine("學(xué)校：" + schoolName);
27
28 #region 年級
29 //通過SelectSingleNode方法獲得當(dāng)前節(jié)點(diǎn)下的grades子節(jié)點(diǎn)
30 XmlNode gradesNode = schoolNode.SelectSingleNode("grades");
31 if (gradesNode != null)
32 {
33 //通過ChildNodes屬性獲得grades的所有一級子節(jié)點(diǎn)
34 XmlNodeList gradeNodeList = gradesNode.ChildNodes;
35 if (gradeNodeList != null)
36 {
37 foreach (XmlNode gradeNode in gradeNodeList)
38 {
39 Console.WriteLine("\t");
40 Console.WriteLine("年級：" + gradeNode.Attributes["name"].Value + " ID:" + gradeNode.Attributes["id"].Value);
41
42 #region 班級
43 //通過SelectSingleNode方法獲得當(dāng)前節(jié)點(diǎn)下的classes子節(jié)點(diǎn)
44 XmlNode classesNode = gradeNode.SelectSingleNode("classes");
45 if (classesNode != null)
46 {
47 //通過ChildNodes屬性獲得classes的所有一級子節(jié)點(diǎn)
48 XmlNodeList classNodeList = classesNode.ChildNodes;
49 if (classNodeList != null)
50 {
51 foreach (XmlNode classNode in classNodeList)
52 {
53 Console.WriteLine(" 班級：" + classNode.Attributes["name"].Value + " ID:" + classNode.Attributes["id"].Value);
54
55 #region 老師
56 XmlNode teachersNode = classNode.SelectSingleNode("teachers");
57 if (teachersNode != null)
58 {
59 XmlNodeList teacherNodeList = teachersNode.ChildNodes;
60 if (teacherNodeList != null)
61 {
62 foreach (XmlNode teacherNode in teacherNodeList)
63 {
64 XmlNode teacherNameNode = teacherNode.FirstChild;
65 XmlCDataSection cdate = (XmlCDataSection)teacherNameNode.FirstChild;
66 if (cdate != null)
67 {
68 Console.WriteLine(" "+teacherNode.Attributes["teach"].Value + "老師："+cdate.InnerText.Trim())；
69
70 }
71 }
72 }
73 }
74 #endregion 老師
75
76 #region 所有學(xué)生
77 XmlNode studentsNode = classNode.SelectSingleNode("students");
78 if (studentsNode != null)
79 {
80 XmlNodeList studentNodeList = studentsNode.ChildNodes;
81 if (studentNodeList != null)
82 {
83 foreach (XmlNode studentNode in studentNodeList)
84 {
85 Console.WriteLine(" 學(xué)生：" + studentNode.Attributes["id"].Value);
86
87 //獲取student的屬性值name和文本
88 XmlNode stu1 = studentNode.FirstChild;
89 XmlElement xe1 = (XmlElement)stu1;
90 if (xe1 != null)
91 {
92 Console.WriteLine(" 姓名：" + xe1.InnerText.Trim());
93 }
94 //獲取student的屬性值sex和文本
95 XmlNode stu2 = studentNode.LastChild;
96 XmlElement xe2 = (XmlElement)stu2;
97 if (xe2 != null)
98 {
99 Console.WriteLine(" 姓別：" + xe2.InnerText.Trim());
100 }
101 }
102 }
103 #endregion 所有學(xué)生
104 }
105 }
106 }
107 #endregion 班級
108 }
109 }
110 }
111 #endregion 年級
112 Console.Write("\r\n按隨意鍵跳出");
113 Console.ReadKey();
114 }
115
116 }
117 }
118 }
119 }
120 }
ok，運(yùn)行，如圖：
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