1.执行安装命令
brew install mysql
ERROR 2002 (HY000): Can not connect to local MySQL server through socket '/tmp/mysql.sock' (2)
unset TMPDIR
mysql_install_db --verbose --user=root --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp
mysql.server start
mysql -uroot -p
搞定！