https://ruby-china.org/dingzhihu 生命不息，折腾不止 en-us <p>做一个元编程练习时被难倒了，贴出来，看看各位有啥好主意 <a href="http://ruby-metaprogramming.rubylearning.com/html/Exercise_1.html" rel="nofollow" target="_blank">http://ruby-metaprogramming.rubylearning.com/html/Exercise_1.html</a></p> dingzhihu Tue, 13 Nov 2012 17:46:11 +0800 https://ruby-china.org/topics/6733 https://ruby-china.org/topics/6733