瞎扯淡 你还在为过年回家没网如何查 rails api 而烦恼，rdoc 你值得拥有?
刚刚 google 了下，发现http://railsapi.com/还是很不错的，rails 版本是 3.2.6。
该网不仅提供在线版本，还有打包下载版本，对于回家没网的童鞋来说，弄个打包版本，没网也可以将 rails api 查的飞起，快载快哉~~
#1 楼 @fresh_fish 把 bootstrap clone 到本地，然后进入 doc，把所有 html 里关于 twitter api 的东西删掉，这样就免受翻墙困扰了。
Rails also comes with built-in help that you can generate using the rake command-line utility: http://guides.rubyonrails.org/getting_started.html#what-s-next
Running rake doc:guides will put a full copy of the Rails Guides in the doc/guides folder of your application. Open doc/guides/index.html in your web browser to explore the Guides.
Running rake doc:rails will put a full copy of the API documentation for Rails in the doc/api folder of your application. Open doc/api/index.html in your web browser to explore the API documentation.
@small_fish__ 就在你的 rails 项目的目录里直接运行：
rake doc:guides
rake doc:rails
然后在 doc 目录下就能找到了