安装memcached
1、安装依赖库
（图片来源网络，侵删）
sudo aptget update sudo aptget install y libeventdev libmemcacheddev zlib1gdev
2、下载并解压memcached源码包
wget http://memcached.org/files/memcached1.6.10.tar.gz tar zxvf memcached1.6.10.tar.gz cd memcached1.6.10
3、编译并安装memcached
./configure make sudo make install
4、启动memcached服务
sudo /usr/local/bin/memcached d m 64 p 11211 u root c 1024 P /tmp/memcached.pid
memcached命令
1、查看memcached状态
memcached h host p port vvv
2、添加缓存数据
set key value [expiration time] [timeout] [noreply]
set mykey "Hello, World!" 60 60 0 no_reply
3、获取缓存数据
get key
get mykey
4、删除缓存数据
delete key [noreply]
delete mykey no_reply
5、清空所有缓存数据（慎用）
flush_all [async] [noreply]
flush_all yes no_reply