出现的问题是不能用yum 下载软件,主要原因是因为源写错了

进入目录  /etc/yum.repos.d  会有以下文件 
neokylin.repo  neokylin-updates.repo  offline.repo  online.repo

更改为neokylin.repo

[neokylin]
name= NeoKylin 7.0

baseurl=http://download.cs2c.com.cn/neokylin/desktop/releases/7.0/x86_64/zx/os/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-neokylin-$basearch

更改neokylin-updates.repo

[neokylin-updates]
name= NeoKylin 7.0 Updates

baseurl=http://download.cs2c.com.cn/neokylin/desktop/updates/7.0/x86_64/zx/os/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-neokylin-$basearch