Linux离线安装gcc

1、打开阿里云开源镜像站：https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/

2、依次下载：

autogen-5.18-5.el7.x86_64.rpm
cpp-4.8.5-44.el7.x86_64.rpm
gcc-4.8.5-44.el7.x86_64.rpm
gcc-c++-4.8.5-44.el7.x86_64.rpm
glibc-devel-2.17-317.el7.x86_64.rpm
glibc-headers-2.17-317.el7.x86_64.rpm
kernel-headers-3.10.0-1160.el7.x86_64.rpm
keyutils-libs-devel-1.5.8-3.el7.x86_64.rpm
krb5-devel-1.15.1-50.el7.x86_64.rpm
libcom_err-devel-1.42.9-19.el7.x86_64.rpm
libmpc-1.0.1-3.el7.x86_64.rpm
libselinux-devel-2.5-15.el7.x86_64.rpm
libsepol-devel-2.5-10.el7.x86_64.rpm
libstdc++-devel-4.8.5-44.el7.x86_64.rpm
libverto-devel-0.2.5-4.el7.x86_64.rpm
mpfr-3.1.1-4.el7.x86_64.rpm
ntp-4.2.6p5-29.el7.centos.2.x86_64.rpm
ntpdate-4.2.6p5-29.el7.centos.2.x86_64.rpm
openssl-1.0.2k-19.el7.x86_64.rpm
openssl098e-0.9.8e-29.el7.centos.3.x86_64.rpm
openssl-devel-1.0.2k-19.el7.x86_64.rpm
openssl-libs-1.0.2k-19.el7.x86_64.rpm
pcre-8.32-17.el7.x86_64.rpm
pkgconfig-0.27.1-4.el7.x86_64.rpm
tcl-8.5.13-8.el7.x86_64.rpm
zlib-1.2.7-18.el7.x86_64.rpm
zlib-devel-1.2.7-18.el7.x86_64.rpm