¸ñʽ»¯XML£ºÊä³öÓÐËõ½øЧ¹ûµÄXML×Ö·û´®

1. Ò»°ãÇé¿öÏÂʹÓÃÒÔÏ´úÂë¼´¿É½«XML×Ö·û´®ÖØиñʽ»¯£º
        private string FormatXml(string source)
        {
            StringBuilder sb = new StringBuilder();
            XmlTextWriter writer = null;
            
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.LoadXml(source);
                writer = new XmlTextWriter(new StringWriter(sb));
                writer.Formatting = Formatting.Indented;
                
                doc.WriteTo(writer);
            }
            finally
            {
                if (writer != null) writer.Close();
            }