C#对xml文件的基本操作

<?xml version="1.0" encoding="utf-8" ?>
<config>
<userName></userName>
<biography></biography>
</config>

XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(Server.MapPath("虚拟路径"));
XmlNodeList nodeList = xmlDoc.GetElementsByTagName("userName");
/*若要存储html代码，可将下面一句改为：
**nodeList[0].InnerXml = "<![CDATA[" + "html代码" + "]]>";
*/
nodeList[0].InnerText = "张山";
xmlDoc.Save(Server.MapPath("虚拟路径"));

XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(Server.MapPath("虚拟路径"));
XmlNodeList nodeList = xmlDoc.GetElementsByTagName("userName");
/*下面假定将内容读到Literal1里面*/
Literal1.Text = nodeList[0].InnerText;