public static void Add(string key, string value, string description)
{
if (GetByKey(key) == null)
{
List <XmlParamter> xplist = new List <XmlParamter>();
xplist.Add(new XmlParamter("Key", key));
xplist.Add(new XmlParamter("Value", value));
xplist.Add(new XmlParamter("Description", ""));
xplist.Add(new XmlParamter("UpdateTime", DateTools.GetNow().ToString("yyyy-MM-dd HH:mm:ss")));
XMLHelper.AddData(GetPath(), "KeyValue", xplist.ToArray());
}
}