因为官方不维护了所以先用更换源wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-6.10.repohttps://developer.aliyun.com/mirror/ 更多版本命令前往修改resolv.confsudo vim /etc/resolv.conf nameserver 8.8.8.8 nameserver 8.8.4.4 nameserver 208.67.222.222 nameserver 208.67.220.22yum clean allyum makecache然后就可以使用yumyum -y install gcc-c