mysql数据库出现：

1045 access denied for user ‘root‘@‘localhost‘ using password yes

在mysql命令行中执行

SET PASSWORD FOR ‘root‘@‘localhost‘ = PASSWORD(‘123456‘); 

GRANT ALL PRIVILEGES ON *.* TO ‘root‘ @‘%‘ IDENTIFIED BY ‘123456‘ WITH GRANT OPTION;

flush privileges;

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1045 access denied for user 'root'@'localhost' using password yes