requier 引用一个文件夹下的多个文件

http://rubyer.me/blog/689/
参考上面的链接，基本上能满足所有的要求。
如果图省事的话，就直接用requier_all 这个gem
Installation
Gemfile:

gem 'require_all'

And then execute:bundle

Usagerequire

 'require_all'
*load all ruby files in the directory "lib" and its subdirectories*
require_all 'lib'
*or load all files by using glob*
require_all 'lib/**/*.rb'
*or load files in an Array*
require_all Dir.glob("blah/**/*.rb").reject { |f| stupid_file? f }
*or load manually specified files*
require_all 'lib/a.rb', 'lib/b.rb', 'lib/c.rb', 'lib/d.rb'

You can also load files relative to the current file by using require_rel:
Instead of

require File.dirname(__FILE__) + '/foobar'

you can do simply like thisrequire_rel 'foobar'