The Well-Grounded Rubyist -- Ruby程序员修炼之道下载

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[Ruby笔记]16.Ruby 判断数字 .is_a?(Numeric) .to_i

PS C:\Users\Administrator\RubyCode> irb --simple-prompt >> 100.is_a?(Numeric) => true

[Ruby笔记]30.Ruby hash symbol 在哈希表中用符号作为键

The Well-Grounded Rubyist, Second Edition》 (https://www.manning.com/books/the-well-grounded-rubyist-second-edition) あついおっ~~~~~  ∧ ∧ γ⌒ヽ  (* 'ω')i ミ(二i  ( ∪ ∪ ヽ、,_|| ...

[Ruby笔记]7.ruby -e ' " 单引号、双引号对比

使用`ruby -e "..."`可以在命令行直接运行脚本 ``` PS C:\Users\Administrator\RubyCode> ruby -e "print 'Enter a name: '; print gets.reverse" Enter a name: Tom moTPS ```

[Ruby笔记]31.ruby set 类型 交、并、补、异或 & + - ^ |

set是Ruby的标准库的类; 打开irb使用,需要先写语句 require 'set'; code irb $ irb --simple-prompt >> require 'set' => true 创建两个集合 ()里面放一个数组即可 >> first = Set.new(["A","B","C","D"]) => #, ...

[Ruby笔记]22.Ruby :: namespace 以及 instance method 与class method

:: namespace在module里面放了一个class,要实例化这个class,需要用M::C.new , module M 起到了namespace的作用,从视觉上大大加强代码的可读性:PS C:\Users\Administrator> irb --simple-prompt ...

[Ruby笔记]4. ruby 读写文件 File open read write new

Run新建了一个文件temp.dat 存了一个数据,整数 100PS C:\Users\Administrator\...100PS C:\Users\Administrator\RubyCode> ruby c2fin2out.rbReading Celsius temperature value from data file... The Celsius

[Ruby笔记]20.Ruby super initialize class

# code in file `abc.rb` ``` class SuperABC def initialize @a = 1 @b = 2 @c = 3 end end class ABC def initialize super # keyword @a = 0 end def a puts @a ... puts @b

[Ruby笔记]27. ::String 前加双冒号确保使用built-in Ruby class

::String# File : ex.rb class V class String attr_reader :picth def initialize(picth) @picth = picth + " From My String" puts @picth end end d

[Ruby笔记]5. Ruby RbConfig::CONFIG[""]

irb --simple-prompt -rrbconfig

2013年Ruby on Rails阅读列表

这里是我2013年推荐的阅读材料 ...Code School Try Ruby Code School Try Git Code School Git Real Peepcode Meet Command Line Peepcode Advanced Command Line Zed Shaw Learn

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

ruby -cw xx.rbruby检查代码语法 ruby 后面加个 -cw PS C:\Users\Administrator\RubyCode> more ex11.rb # missing " puts "Hello ,world PS C:\Users\Administrator\RubyCode> ruby -cw ex11.rb ex11.rb:2: ...

[Ruby笔记]18.Ruby 继承 Inheritance 与 .superclass

- 打开`irb` ,定义一个`Super`类 ``` PS C:\Users\Administrator> irb --simple-prompt >> class Super >> def say_hello >> "hello" >> end >> end => :say_hello >> class My >> end ```

Ruby程序员修炼之道(第2版)--带标签--高清非扫面版

钟凤鸣 陈雪静 翻译,值得一看。 可编辑PDF版本,带标签,高清,非扫描。 英文书名:The Well-Grounded Rubyist--2nd

[Ruby笔记]24.Ruby全局变量 $global_variable

PS C:\Users\Administrator> irb --simple-prompt >> class Time >> def hour_minute_seconds >> time = $hour + ":" >> time $minute} : " if $minute >> time $second}" >> end >> end => :hour_minute_

[Ruby笔记]14.Ruby local_variable

Ruby local_variable 可用命名格式a _a name first_name hello48 user_ID _Ruby如何区分local_variable /keyword/ method call ... 诸如def 、if类keyword,Ruby内置一张关键词的表,可以直接判断出来 local_varia

ruby学习中,很不错的书籍

------TheWell-Grounded Rubyistby David A. Black$29.39Get this book. David A. Black knows Ruby.Ruby inPracticeby Jeremy McAnally$28.89RubyBest Practicesby Greg

[Ruby笔记]15.@instance_variable 以及 糖“在方法名中可使用=”

class Sugar def price=(amount) @price = amount end def price @price end end

[Ruby笔记]2. ruby基础的基础: irb --simple-prompt / puts print p/ false nil

irb –simple-prompt PS C:\Users\Administrator> irb irb(main):001:0> exit()PS C:\Users\Administrator> irb --simple-prompt >> exit() PS C:\Users\Administrator>irb –simple-prompt 模式更“清爽”puts ...

[Ruby笔记]17.Ruby attribute attr_reader attr_writer attr_accessor attr

class Test attr_reader :name, :sex attr_writer :age attr_accessor :weight def initialize(name, sex, weight) @name = name @sex = sex @weight = weight end end

The Well Grounded Rubyist, 3rd Edition

The Well-Grounded Rubyist, Third Edition is a beautifully written tutorial that begins with your first Ruby program and takes you all the way to sophisticated topics like reflection, threading, and ...

it书籍分享免费下载

Event Streams in Action | | http://file.allitebooks.com/20190530/Event Streams in Action.epub...Web-Based Projects that Rock the Class | | http://file.allitebooks.com/20190526/Web-Based Projects that ...

透过豆瓣上一篇“如何快速学习 Ruby on Rails?”,思考如何去学习新的技术

快速学习Ruby on Rails,这应该是个伪命题,没有什么事情是能够快速学习的,尤其是编程,而且是Rails这样极其复杂的框架,它由无数顶级高手成年累月的心血堆砌而成,融合了web开发领域内几乎全部的最佳实践。...

[Ruby笔记]10. Ruby object return Boolean nil false #{}

>> if puts "Hello world" >> puts "You can't see this" >> end Hello world => nil

英文原版-The WellGrounded Rubyist 1st Edition

Whether the topic is simple or tough, the book’s easy-to-follow examples and explanations will give you immediate confidence as you build your Ruby programming skills.The Well-Grounded Rubyist is a ...

[Ruby笔记]25.local scope 本地作用域

code# file : nest2.rb class A x = 'A' module M x = 'M' class B x = 'B' def show_x x = 'X' puts x end

[Ruby笔记]12.Ruby 方法参数变量优先级method(*arg)

def m(a,b=2,*c,d) puts "a = #{a} ,b = #{b} ,c = #{c} ,d = #{d} " end m(1,3) # a = 1 ,b = 2 ,c = [] ,d = 3 m(1,3,5) # a = 1 ,b = 3 ,c = [] ,d = 5 m(1,3,5,7) # a = 1 ,b = 3 ,c = [5] ,d = 7 ...

[Ruby笔记]19.Ruby 2.0+ prepend 与 include

# code 创建一个`win.rb` 文件: ``` PS C:\Users\Administrator\RubyCode> ls -a--- 2016/6/3 16:52 142 win.rb ``` 使用`prepend M`语句 , `module win` : ``` module M def hello puts "Module win!...

[Ruby笔记]26. self 不变,每一次调用函数都会产生新的local scope

class C def hello(a, recurse = false) print "Now , self is : " p self print "self object id is : " p self.object_id print "And here's a : " puts a print "a has object id : " ...

[Ruby笔记]23.Ruby self “main class module instance”

# self ! - **test_self.rb** ``` puts "Top Level" puts "self is #{self}" # self is main class C puts "Class definition block : " puts "self is #{self}" #self is C ... puts "Cl

转 - Ruby汇总

已经转了一个Python的留存,现在加上一个Ruby。 原址:http://www.itpub.net/thread-1318349-1-1.html   Ruby是一种为简单快捷面向对象编程的脚本编程语言,由日本人松本行弘开发,遵守GPL协议和Ruby License。...

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