好文记录-待整理

 

 

date-time-datetime-in-ruby-and-rails

http://stevenyue.com/2013/03/23/date-time-datetime-in-ruby-and-rails/

 

Ruby中'=='和'==='的区别

http://blog.csdn.net/besfanfei/article/details/8556215

 

dup 和 clone的区别

http://blog.csdn.net/cloudcraft/article/details/10348799

 

Proc & block

http://www.360doc.com/content/13/1227/18/1073512_340587164.shtml

 

 

[1] pry(main)> 1.class
=> Fixnum
[2] pry(main)> class Fixnum
[2] pry(main)*   alias_method :plus, :+
[2] pry(main)*   def +(value)
[2] pry(main)*     plus(value).plus(1)
[2] pry(main)*   end 
[2] pry(main)* end 
[4] pry(main)> 1+1
[4] pry(main)> 1+1
=> 3
[6] pry(main)>