如何找出所有memcached里的所有存放的元素

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        /// <summary>
        ///  遍历出所有元素
        /// </summary>
        /// <param name="tagName">customer_,device_ 等</param>
        /// <returns>Hashtable 数据对象,根据tagName</returns>
        public Hashtable GetStats(string tagName)
        {
            ArrayList arrList=new ArrayList();
            for (int i = 0; i < serverlist.Length; i++)
            {
              arrList.Add(serverlist[i]);
            }
            Hashtable tmpDataHashTable = new Hashtable();
            Hashtable resultHashtable = new Hashtable();
            Hashtable allHashtable = mc.Stats(arrList, "items");
            foreach (string key in allHashtable.Keys)
            {
                Hashtable dataHashTable = (Hashtable)allHashtable[key];
                foreach (string tmpKey in dataHashTable.Keys)
                {
                    string[] splitKey = tmpKey.Split(':');
                    string tmpValue = (string)dataHashTable[tmpKey];
                    if (splitKey[2] == "number")
                    {
                        tmpDataHashTable.Add(splitKey[1], tmpValue);
                    }
                }

            }

             //如果在存放数据是没有使用自己的标记数据时，这个可以不需要，但建议做标记

            //因为获取出来的也许不是你的数据

            foreach (string allKey in tmpDataHashTable.Keys)
            {
                //key memCache结果集标记key,tmpDataHashTable[key]条数
                Hashtable hashtable = mc.Stats(arrList, "cachedump " + allKey + " " + tmpDataHashTable[allKey]);
                foreach (string tmpKey in hashtable.Keys)
                {
                    Hashtable result = (Hashtable)hashtable[tmpKey];
                    foreach (string resultKey in result.Keys)
                    {
                        if (resultKey.IndexOf(tagName) != -1)
                        {
                            resultHashtable.Add(resultKey, result[resultKey]);
                        }
                    }
                }
            }
            return resultHashtable;
        }