linux centos7 mysql yum安装教程

1.mkdir -p /usr/local/mysql
2.cd /usr/local/mysql
3.wget http://repo.mysql.com//mysql57-community-release-el7-7.noarch.rpm
4.rpm -ivh mysql57-community-release-el7-7.noarch.rpm
5.cd /etc/yum.repos.d 查看是否有mysql-community.repo和mysql-community-source.repo
6.yum install mysql-server mysql-devel
7.rpm -qa|grep mysql
8.systemctl start mysqld
9.systenctl status mysqld