说明：
Memcached is a general-purpose distributed memory-caching system. It is often used to speed up dynamic database-driven websites by caching data and objects in RAM to reduce the number of times an external data source must be read. Memcached is free and open-source software, licensed under the Revised BSD license.
66办公点评：
专业，免费强大的缓存数据库。
Memcached官网：
Memcached官网下载：
https://memcached.org/downloads
Memcached官网历史版本下载：
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