mac 安装memcached服务

使用homebrew安装，homebrew安装方法http://brew.sh/

1. 安装memcached服务
2. brew install memcached
3. 配置开机启动（用brew安装之后下面会提示怎么启动）
4. ln -sfv /usr/local/opt/memcached/*.plist ~/Library/LaunchAgents
5. launchctl load  ~/Library/LaunchAgents/homebrew.mxcl.memcached.plist
6. 启动memcached
7. /usr/local/opt/memcached/bin/memcached
8. 测试memcache是否启动
9. telnet 127.0.0.1 11211