redis安装.md

### 第一步：下载redis安装包 ​ wget http://download.redis.io/releases/redis-4.0.6.tar.gz ``` [root@iZwz991stxdwj560bfmadtZ local]# wget http://download.redis.io/releases/redis-4.0.6.tar.gz --2017-12-13 12:35:12-- http://download.redis.io/releases/redis-4.0.6.tar.gz Resolving download.redis.io (download.red