https://ruby-china.org/walkerofpercy en-us <p>请问各位，我在 irb 界面输入 gem list 返回不识别，安装后 gem 也还是不行，如下： <img src="//l.ruby-china.com/photo/c359230fcfda4187ccd43f941726ed60.jpg" title="" alt=""></p> walkerofpercy Wed, 31 Jul 2013 23:10:33 +0800 https://ruby-china.org/topics/12959 https://ruby-china.org/topics/12959