MAC彻底卸载数据库

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

执行完上面命令后使用的是Vim指令，复制上述命令，保存，退出即可。

继续完成下列指令：

1. rm -rf ~/Library/PreferencePanes/My*

2. sudo rm -rf /Library/Receipts/mysql*

3. sudo rm -rf /Library/Receipts/MySQL*

4. sudo rm -rf /var/db/receipts/com.mysql.*