1、首先查看可以按照的redis版本: brew search redis
2、选择合适的版本进行安装: brew install redis@3.2
redis@3.2 is keg-only, which means it was not symlinked into /usr/local,
because this is an alternate version of another formula.
If you need to have redis@3.2 first in your PATH, run:
echo 'export PATH="/usr/local/opt/redis@3.2/bin:$PATH"' >> ~/.profile
To have launchd start redis@3.2 now and restart at login:
brew services start redis@3.2
Or, if you don't want/need a background service you can just run:
/usr/local/opt/redis@3.2/bin/redis-server /usr/local/etc/redis.conf
3.启动服务：brew services start redis@3.2
