There may be problems with the MySQL that just installed successfully

• 1.ERROR 1045 (28000): Access denied for user ‘mysql‘@‘localhost‘ (using password: NO)

   //先关闭mysqld服务   service mysqld stop   //修改mysql配置文件   vi /etc/my.cnf   //写入：skip-grant-tables（用来跳过密码登录，必须在root用户下修改这个文件）   //然后进入mysql命令行模式   use mysql(转到mysql表)   //更新root密码   SET PASSWORD FOR ‘root‘@‘localhost‘ = PASSWORD(‘MyNewPassword‘);   flush privileges;   //再次修改配置文件，注释掉skip-grant-tables

• 2, ERROR 1819 (HY000): Your password does NOT satisfy the CURRENT policy requirements (usually appears in MySQL 5.7.6 later version)

    //把authentication_string 里写入的值记一下（因为password()函数已废弃）    ALTER USER USER() IDENTIFIED BY ‘news_password‘;

You can do it.

There may be problems with the MySQL that just installed successfully