CentOS7 yum安裝wget

使用yum安裝wget：

yum install -y wget

遇到問題：

Loading mirror speeds from cached hostfile
There are no enabled repos.
 Run "yum repolist all" to see the repos you have.
 To enable Red Hat Subscription Management repositories:
     subscription-manager repos --enable <repo>
 To enable custom repositories:
     yum-config-manager --enable <repo>

查看/etc/yum.repos.d/CentOS-Base.repo文件是否正常存在