一:MySQL伺服器連結NaviCat時,需要輸入MySQL的密碼,這個時候可能就會遺忘掉,修改的話可以在終端進行指令修改
1:啟動Apache和Mysql服務
2:在終端輸入

sudo /Applications/XAMPP/xamppfiles/xampp security

3:跟著下圖一步步走

4:重啟Apache和MySql伺服器

二:mac下利用終端刪除安裝的MySql伺服器
一步一步的往下走就可以了

sudo rm /usr/local/mysql
sudo rm -rf /usr/local/mysql*
sudo rm -rf /Library/StartupItems/MySQLCOM
sudo rm -rf
 
 /Library/PreferencePanes/My*
vim /etc/hostconfig (and removed the line MYSQLCOM=-YES-)
rm -rf ~/Library/PreferencePanes/My*
sudo rm -rf /Library/Receipts/mysql*
sudo rm -rf /Library/Receipts/MySQL*
sudo rm -rf /var/db/receipts/com.mysql.*