2. 安装Memcached

官网下载
下载地址

1. 安装依赖
   yum install libevent libevent-devel -y
   下载软件包：

(1/3): libevent-devel-1.4.13-4.el6.x86_64.rpm                                                                                          
(2/3): libevent-doc-1.4.13-4.el6.noarch.rpm