asp.net 生成xml

 DateTime dt;
            dt = DateTime.Now;
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load(xmlPath);
            XmlNode root = xmlDoc.SelectSingleNode("root");//查找<bookstore>
            XmlElement xe1 = xmlDoc.CreateElement("AddNew");//创建一个<book>节点
            root.AppendChild(xe1);
            XmlElement xesub1 = xmlDoc.CreateElement("Content");
            xesub1.InnerText = this.textBox1.Text;//设置文本节点
            xe1.AppendChild(xesub1);//添加到<Content>节点中
            XmlElement xesub2 = xmlDoc.CreateElement("Time");
            xesub2.InnerText = dt.ToString();//设置文本节点 
            xe1.AppendChild(xesub2);//添加到<Time>节点中
            xmlDoc.Save(xmlPath);