☆ 资源说明：☆ [Pragmatic Bookshelf] Crafting Rails 4 Applications (英文版) [Pragmatic Bookshelf] Crafting Rails 4 Applications Expert Practices for Everyday Rails Development (E-Book) ☆ 图书概要：☆ Get ready to see Rails as you've never seen it before. Learn how to extend the framework, change its behavior,