centos7 gcc gcc-c++ 离线安装

我的系统版本centos 7.7 1，准备rpm包 可以到这地址去下载 http://mirror.centos.org/centos/7/os/x86_64/Packages/ 2，安装rpm rpm -Uvh mpfr-3.1.1-4.el7.x86_64.rpm rpm -Uvh libmpc-1.0.1-3.el7.x86_64.rpm rpm -Uvh cpp-4.8.5-39.el7.

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