把下面的四个包下载好
[root@localhost mysql]# ll -h
total 193M
-rw-r--r--. 1 root root 25M Jul 18 04:59 mysql-community-client-5.7.27-1.el7.x86_64.rpm
-rw-r--r--. 1 root root 275K Dec 25 08:20 mysql-community-common-5.7.27-1.el7.x86_64.rpm
-rw-r--r--. 1 root root 2.2M Dec 25 09:43 mysql-community-libs-5.7.27-1.el7.x86_64.rpm
-rw-r--r--. 1 root root 166M Jul 18 05:00 mysql-community-server-5.7.27-1.el7.x86_64.rpm
然后yum install *