debian 7中mysql的问题

嗨，朋友们早上好！，我发现在debian 7中启动、停止和重新启动mysql服务有一个大问题。
显示以下错误：

/usr/bin/mysqladmin: connect to server localhost failed
Error Access denied for user 'debian-sys-maint'@'localhost'

1获取文件/etc/mysql/debian.cnf可以看到“debian sys maint”用户使用简单“cat”的旧密码：

server:/# cat /etc/mysql/debian.cnf

# Automatically generated for Debian scripts. DO NOT TOUCH!
[client]
host     = localhost
user     = debian-sys-maint
password = DEBUSERPASSWORD
socket   = /var/run/mysqld/mysqld.sock
[mysql_upgrade]
user     = debian-sys-maint
password = DEBUSERPASSWORD
socket   = /var/run/mysqld/mysqld.sock
basedir  = /usr

如图所示，“DEBUSERPASSWORD”是密码

二月。我们再次添加到现有的用户数据库中

GRANT ALL PRIVILEGES ON *.* TO 'debian-sys-maint'@'localhost' IDENTIFIED BY 'DEBUSERPASSWORD' WITH GRANT OPTION;

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它说用户“debian sys maint”没有权限，只需授予他适当的权限即可！您尝试过，但它向我显示了另一个错误：用户“root”@“localhost”的错误1045（28000）访问被拒绝这很奇怪，您能显示您到底尝试了什么吗？我在描述中添加了@mamdouhalramadan