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access denied for user 'root'@'localhost' (using password: YES);
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[root@localhost home]# mysql -u root
mysql>set password for 'root'@'localhost'=password('newpasswd');
mysql>set password for 'root'@'%'=password('newpasswd'); //±¾Ìõ¿Éѡͨ¹ýÒÔÉÏÉèÖÃ,rootµÄÃÜÂ뽫±äΪnewpasswdÕâÑù¾ÍÍê³ÉÁ˸ùÓû§rootÃÜÂëµÄÉèÖù¤×÷
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