How to uninstall MySQL on Mac

There are installation files in the DMG format of mysql in mac, but they are not uninstalled ...... Very depressing.
I searched the internet and found that the method was manually deleted.
Many articles describe incomplete files to be deleted, and later found an omission in stackoverflow, so the full version is described here for reference.
Stop all mysql-related processes first.

 

1 sudo rm/usr/local/mysql
2 sudo rm-rf/usr/local/mysql *
3 sudo rm-rf/Library/StartupItems/MySQLCOM
4 sudo rm-rf/Library/PreferencePanes/My *
5 vim/etc/hostconfig (and removed the line MYSQLCOM =-YES -)
6 rm-rf ~ /Library/PreferencePanes/My *
7 sudo rm-rf/Library/Receipts/mysql *
8 sudo rm-rf/Library/Receipts/MySQL *
9 sudo rm-rf/var/db/receipts/com. mysql .*

At last, many articles were lost. Remember to remember.