The method of uninstalling mysql under Mac: (most of the uninstallation is due to the high version)
1. close mysql
Check whether mysql is started: ps -ef |grep mysql
2. Enter: kill -9 and press Enter to close mysql.
3. Uninstall:
Use the following command on the Mac terminal to delete all mysql files
4. In this way, mysql is uninstalled. You can reinstall other versions
Now you can go to the bottom of the system settings to see if the mysql icon still exists