软件说明：简易的数据存储器，将数据存到内存里，方便调用

作 用：1、定时删除功能可以方便的统计在线人数

2、可以作为经常调用的数据作为临时缓存器

3、想不出来

优 点：配置简单

缺 点：最大并发数未测试过-Software Descr iption: Simple data storage, the data stored in memory, easy to call

Role: 1, delete the timer function can easily count the number of online

　2, can be used as a temporary call to the temporary data buffer

　3, can not think of

Advantages: simple configuration

Disadvantages: The maximum number of concurrent tests has not been tested