/// <summary>
        /// 获取指定类型的日志序列化实例(从缓存中获取)
        /// </summary>
        /// <param name="t"></param>
        /// <returns></returns>
        public static ILogWriter[] GetWriters(Type t)
        {
            if (Config.Enable == false)
            {
                return(null);
            }

            DataTypeCacheItem cacheItem = (DataTypeCacheItem)s_writerTable[t.FullName];

            if (cacheItem == null)
            {
                return(null);
            }

            return(cacheItem.Instances);
        }
        /// <summary>
        /// 创建指定类型的日志序列化实例
        /// </summary>
        /// <param name="t"></param>
        /// <returns></returns>
        public static ILogWriter[] CreateWriters(Type t)
        {
            if (Config.Enable == false)
            {
                return(null);
            }

            DataTypeCacheItem cacheItem = (DataTypeCacheItem)s_writerTable[t.FullName];

            if (cacheItem == null)
            {
                return(null);
            }


            return((from x in cacheItem.WriteTypes
                    select(ILogWriter) Activator.CreateInstance(x)
                    ).ToArray());
        }