1.執行命令以安全模式啓動MySQLmysql
cd /usr/local/mysql/bin sudo ./mysqld_safe --skip-grant-tables
2.同上面目錄下執行sql
update mysql.user set authentication_string=PASSWORD\(\'123'\) where User='root'; -- 注意 括號旁邊轉義符號不能少,否則報錯以下 -bash: syntax error near unexpected token `('