public string GetValue(string key)
        {
            XmlElement element = (XmlElement)DOC.SelectSingleNode("Game/" + key);

            if (element != null)
            {
                return(element.Attributes["value"].Value);
            }
            return(string.Empty);
        }
        public void SetValue(string key, string value)
        {
            XmlElement element = (XmlElement)DOC.SelectSingleNode("Game/" + key);

            if (element == null)
            {
                return;
            }
            element.SetAttribute("value", value);
            DOC.Save(XmlFilePath);
        }