问个关于System.xml的问题？(pie9912)

[pie9912]

我想通过C#来实现往我的xml文件中加入数据！
我的infor.xml
<person>
<name>pie</name>
<E_mail>[e-mail]</E_mail>
<address>xmu</address>
</person>
怎么加入一个节点为<person>
请高手帮忙！
谢谢！

[zhang_samuel]

if following is your infor.xml ( suppose it located in root directory of disk C)
<?xml version="1.0" encoding="utf-8"?>
<Root>
<person>
<name>pie</name>
<E_mail>[e-mail]</E_mail>
<address>xmu</address>
</person>
</Root>

XmlDocument doc;
doc=new XmlDocument();
doc.Load(@"c:\Infor.XML");

XmlElement rootElement=doc.DocumentElement;

XmlElement newChild;
XmlElement newChild2;
XmlElement newChild3;
XmlElement newChild4;

newChild= doc.CreateElement("person");

// <person>
//<name>pie</name>
//<E_mail>[e-mail]</E_mail>
//<address>xmu</address>
//</person>
newChild2=doc.CreateElement("name");
newChild2.InnerText="pie";
newChild3=doc.CreateElement("E_mail");
newChild3.InnerText="[e-mail]";
newChild4=doc.CreateElement("address");
newChild4.InnerText="xmu";
newChild.AppendChild(newChild2);
newChild.AppendChild(newChild3);
newChild.AppendChild(newChild4);

rootElement.AppendChild(newChild);
doc.Save(@"c:\Infor.XML");