需要先安装brew

更新brew

brew update

安装MariaDB

brew install MariaDB

启动服务、停止服务、查看运行状态

brew services start mariadb
brew services stop mariadb
brew services info mariadb

登录MariaDB（密码为电脑开机密码）

mysql -uroot -p

将root的密码设为root

grant all privileges on *.* to root@localhost identified by 'root';