Redis是一个开源的使用ANSI C语言编写、支持网络、可基于内存亦可持久化的日志型、Key-Value数据库，并提供多种语言的API。(Redis is an open source using ANSI C language to write, support the network, can be based on memory can also be persistent log type, Key-Value database, and provides a variety of language API.)