如何在Ubuntu上安装Ruby2.4
sudo apt-add-repository ppa:brightbox/ruby-ng
sudo apt-get update
sudo apt-get install ruby2.4 ruby2.4-dev
如何在Ubuntu上安装Ruby2.4
sudo apt-add-repository ppa:brightbox/ruby-ng
sudo apt-get update
sudo apt-get install ruby2.4 ruby2.4-dev