Centos 7 更换yum源

Centos 7 更换源

1 yum clean all
2 
3 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo 或者
4 
5 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo
6 
7 yum makecache
8 
9 yum update -y
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原文地址：https://www.cnblogs.com/hoojjack/p/10670182.html