systemctl stop mariadb ==>停止mariadb數(shù)據(jù)庫

mysqld_safe --skip-grant-table ==>進入單機模式

use mysql;==>進入mysql庫

update user set password=password(新密碼) where user='root' and host='localhost';==>設(shè)置新密碼

flush privileges;==>刷新

新開窗口 mysqladmin -uroot -p shutdown ==>新密碼測試關(guān)掉數(shù)據(jù)庫，成功關(guān)閉就證明修改成功

systemctl start mariadb ==>重啟服務(wù)