1、执行 brew info memcached 查看memcached相关信息是否正确
2、memcached依赖libevent,未安装先执行 brew install libevent,已安装则忽略
3、通过homebrew安装 brew install memcached
4、启动memcached
memcached -d -p 11211 -u nobody -c 1024 -m 64
5、连接memcached
telnet localhost 11211
6、退出memcached
quit