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system@system-PC:~/Downloads$ mysql --versionmysql Ver 15.1 Distrib 10.3.23-MariaDB, for debian-linux-gnu (aarch64) using readline 5.2
root login
使用 mysql -uroot -p直接登录 [空密码] mysql
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mysql> GRANT ALL PRIVILEGES ON *.* TO root@localhost IDENTIFIED BY "654321";mysql> GRANT ALL PRIVILEGES ON *.* TO root@127.0.0.1 IDENTIFIED BY "654321";