1.wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
#下载mysql的安装引导

2.yum -y install mysql57-community-release-el7-10.noarch.rpm
#安装mysql安装引导

3.yum -y install mysql-community-server #安装mysql服务

4.systemctl start  mysqld.service #启动mysql服务

5.systemctl status mysqld.service #检查mysql的状态

6.grep "password" /var/log/mysqld.log #获取mysql原始密码

7.mysql -uroot -p  #使用或得到的初始密码进入mysql

8.ALTER USER 'root'@'localhost' IDENTIFIED BY 'new password';  #修改用户密码

9.grant all privileges on *.* to 'root'@'%' identified by 'password' with grant option; 
#允许用户远程访问  %表示所有的主机都可以使用此账户登录，可以设定指定的ip地址

10.flush privileges; #刷新权限