centos 7 更换yum源
# wget -0 /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
# yum cleal all
记录学习和生活的酸甜苦辣.....哈哈哈
# wget -0 /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
# yum cleal all