dgkang (Cheng Shao) https://ruby-china.org/dgkang en-us 求购 Ruby 书 <p>目前正打算学习 Ruby，求购双飞燕或者搞头书，注：正版纸质的</p> dgkang Wed, 16 Jul 2014 17:17:24 +0800 https://ruby-china.org/topics/20521 https://ruby-china.org/topics/20521