更新一下包 # yum install -y gcc-c++ patch readline readline-devel zlib zlib-devel libyaml-devel libffi-devel openssl-devel make bzip2 autoconf automake libtool bison iconv-devel
安装rvm # gpg2 --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 # curl -L get.rvm.io | bash -s stable
查看版本 # rvm -v # echo "source /etc/profile.d/rvm.sh" >> ~/.bashrc # su -
更改安装源 sed -i 's/ftp.ruby-lang.org/cache.ruby-lang.org/' /usr/local/rvm/config/
安装 # rvm list know # rvm install 2.3.0 # rvm use 2.3.0 --default
查看版本 # ruby -v # gem -v # gem install sass
