用最簡單的方式裝一個mysql數據庫，而後後面的話，就有數據庫能夠用來開發了mysql
yum install -y mysql-server
chkconfig mysqld on
service mysqld start
mysql -u root
set password for root@localhost=password('root');
update user set host = '%' where user = 'root'; #遠程開啓
mysql -uroot -proot