 
<?xml version="1.0" encoding="utf-8"?> 
<PersonF xmlns="" Name="(test)work hard work smart!"> 
<person Name="Person1"> 
<ID>1</ID> 
<Name>XiaoA</Name> 
<Age>59</Age> 
</person> 
<person Name="Person2"> 
<ID>2</ID> 
<Name>XiaoB</Name> 
<Age>29</Age> 
</person> 
<person Name="Person3"> 
<ID>3</ID> 
<Name>XiaoC</Name> 
<Age>103</Age> 
</person> 
<person Name="Person4"> 
<ID>4</ID> 
<Name>XiaoD</Name> 
<Age>59</Age> 
</person> 
</PersonF> 

Code：說明都在注釋里。

復(fù)制代碼代碼如下:

 
void TestXML() 
{ 
XmlDocument doc = new XmlDocument(); 
string path = "http://www.dbjr.com.cn/MyDocument/Person.xml"; 
try 
{ 
doc.Load(path); 
//1、讀取單個(gè)節(jié)點(diǎn)的數(shù)據(jù) 
XmlNode node = doc.SelectSingleNode("PersonF"); 
//2、讀取多個(gè)節(jié)點(diǎn)的數(shù)據(jù) 
XmlNodeList nodeList1 = doc.SelectNodes("PersonF/person"); 
//3.1 讀取具體節(jié)點(diǎn)的具體值 如：屬性為Person2的第二個(gè)節(jié)點(diǎn)Name的InnerText 
XmlNodeList nodeList = doc.DocumentElement.GetElementsByTagName("person"); 
foreach (XmlNode node2 in nodeList1) //當(dāng)然也能用nodeList的值 
{ 
if (node2.Attributes["Name"].InnerText == "Person2") 
{ 
Console.WriteLine(node2.ChildNodes[1].InnerText); 
} 
} 
//3.2 讀取ID為2所在的節(jié)點(diǎn)第二個(gè)子節(jié)點(diǎn)Name的InnerText 
XmlNode node3 = doc.SelectSingleNode("PersonF/person[ID=2]"); 
string strNode3 = node3.ChildNodes[1].InnerText; 
//3.3利用下面的方法可以找到ID為2的節(jié)點(diǎn) 
XmlNodeList nodeList2 = doc.SelectNodes("http://person//ID"); 
XmlNode node4 = null; 
foreach (XmlNode node5 in nodeList2) 
{ 
if (node5.InnerText == "2") 
{ 
node4 = node5; 
break; 
} 
} 
Console.WriteLine(node4.InnerText); 
//4、讀取節(jié)點(diǎn)的屬性 
string Name = node.Attributes["Name"].InnerText; 
//5 修改節(jié)點(diǎn)的屬性 
node.Attributes["Name"].InnerText = "work hard work smart!"; 
doc.Save(path); 
//6 添加自定義的節(jié)點(diǎn) 
XmlTextReader reader = new XmlTextReader(path); 
XmlElement root = doc.DocumentElement;//獲取根節(jié)點(diǎn) 
XmlElement tagOuter = doc.CreateElement("person"); 
XmlElement tagIN = doc.CreateElement("Name"); 
tagIN.InnerText = "work hard work smart!"; 
tagOuter.AppendChild(tagIN); 
root.AppendChild(tagOuter);//添加tagOuter到XML文件的最后 
reader.Close(); 
doc.Save(path); 
} 
catch (System.Exception e) 
{ 
throw new Exception(e.Message); 
} 
} 