[Ruby笔记]3. 语法检查ruby -cw xx.rb /代码运行 ruby xx.rb/变量约定 @ @@ $

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ruby -cw xx.rb

ruby检查代码语法　ruby 后面加个 -cw

PS C:\Users\Administrator\RubyCode> more ex11.rb# missing "puts "Hello ,worldPS C:\Users\Administrator\RubyCode> ruby -cw ex11.rbex11.rb:2: unterminated string meets end of file

ruby xx.rb

ruby运行代码

PS C:\Users\Administrator\RubyCode> more ex11.rb# no missing "puts "Hello ,world "PS C:\Users\Administrator\RubyCode> ruby ex11.rbHello ,world

Variable

各种变量的约定写法举例，akarin~( ‘-^ )-☆

Type Ruby convention Local akaza_akarin Instance @akaza_akarin Class @@akaza_akarin Global $akaza_akarin

Reference

《The Well-Grounded Rubyist, Second Edition》
(https://www.manning.com/books/the-well-grounded-rubyist-second-edition)

1.1.2. The variety of Ruby identifiers
1.1.3. Method calls, messages, and Ruby objects
1.1.4. Writing and saving a simple program
1.1.5. Feeding the program to Ruby

http://www.ioccc.org/2011/akari/akari.c
http://www.csdn.net/article/2012-04-25/2805007

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