/// <summary>
 /// Get config of short type
 /// </summary>
 /// <param name="section"></param>
 /// <param name="key"></param>
 /// <param name="ret"></param>
 /// <returns></returns>
 public short GetShort(string section, string key, out Ret ret)
 {
     if (!ContainItem(section, key, out ret))
     {
         return(0);
     }
     return(FF.StringToShort(_config[section][key], out ret));
 }