创建XML空文档

        /// <summary>
        /// 创建xml文件
        /// </summary>
        /// <param name="fileName">文件名</param>
        /// <param name="filePath">文件路径</param>
        public void CreateXML(string fileName, string filePath)
        {
            //首先要创建一个空的XML文档
            XmlDocument xml = new XmlDocument();
            try
            {
                //在XML的文档的最头部加入XML的声明段落
                XmlNode node = xml.CreateNode(XmlNodeType.XmlDeclaration, "", "");
                xml.AppendChild(node);

                //添加根元素
                XmlElement root = xml.CreateElement("indexs");
                xml.AppendChild(root);

                //获取xml文件路径
                string xmlName = filePath.Substring(0, filePath.LastIndexOf('\\')) + "\\" + fileName.Substring(0, fileName.LastIndexOf('.')) + ".xml";

                //保存文件路径
                xml.Save(xmlName);
            }
            catch (Exception e)
            {
                throw e;
            }    
        }