1. This is Ruby! HAPPY CODING

2. class Application { public static void main ( String [] args ) { System . out . println ( "Hello World!" ); } }

3. puts "Hello World!"

4. import java.io.InputStreamReader ; import java.io.BufferedReader ; class Application { public static void main ( String [] args ) { System . out . println ( "What is your name?" ); String name = "" ; InputStreamReader input = new InputStreamReader ( System . in ); BufferedReader reader = new BufferedReader ( input ); try { name = reader . readLine (). trim (); } catch ( Exception e ) { ; } System . out . println ( "Nice to meet you, " + name + '!' ); } }

5. puts "What is your name?" name = gets . chomp puts "Nice to meet you, #{ name } !"

6. a = 10 puts 'a is #{a}' puts "a is #{ a } " # output: # a is #{a} # a is 10

7. More codes

8. Ruby 印象

10. (true until ruby2.0)

11. 简洁

12. 贴近自然语言

14. 松本行弘 Yukihiro Matsumoto(Matz) 1993 年发明 Ruby

19. Http://ruby-lang.org

20. Http://railsinstaller.org

21. Ruby 的高生产率

23. 专注于你要解决的问题

25. alias：不用纠结命名

27. RubyGems

28. Bundler

29. ...

30. 越少的代码 越少的 bug 越强大的程序员 越大的能量

31. _Why The Lucky Stiff

33. 20+ repo

34. 画家

38. Markdown系:Rdiscount等

39. HAML

40. ...

41. SASS, SCSS

43. Sinatra

44. Sprockets

45. PDoc

46. Watchr

47. More on Github: https://github.com/languages/Ruby

49. 几乎所有的Ruby项目都在Github上托管

50. 这就是 Ruby 感谢聆听！ Q&A ( 如果还有时间的话）