Ruby range class

The ruby language contains a type called the range class, which is a set of a range of some classes. Generally ".. "or "... "To define the range ,".. "indicates the value that contains the defined range ,"... "does not include the value at the end

Ruby Study Notes (3)-foresight on the syntax Layer

After reading Ruby for a few days, I found many well-known syntax features in C #. Ruby was available a few years ago: 1. The Params keyword in C # Class program {static void main (string [] ARGs) {console. writeline (sum (); console. writeline (

Ruby Study Notes (7)-closures

An important feature of closures is that variables defined inside a process (method) can be referenced even after the method call is complete! (That is, the lifecycle is extended) Def method (n) puts "n = # {n}"; # Return proc {| I | n + = I} # key:

Ruby obfuscators and code protection

Rubyencoder protects Ruby and Ruby on Rails files through compilation and encryption. The encrypted script is run by the rubyencoder loader. Rubyencoder is composedInovica LtdDeveloped. They also made a similar thing for PHP:Sourceguardian.

One-step learning of Ruby (21): File Operations 2

1. Open and read files File = file. Open ("cnblogslink.txt") file. Each {| Line | print "# {file. lineno}.", line} file. Close Output: 1.Community 2. News 3. Community 4. News 5. Recruitment 6. Bo Wen 7. Group8. Flash9. Network

Suddenly, I met you-Ruby

From a stranger to a preliminary understanding; from reading to hands-on practice, I want to say, you are very beautiful! Ruby is a pure object-oriented scripting language developed by yukihiro Matsumoto in Japan. This language is designed to

Ironruby-quick learning of basic Ruby knowledge in half an hour

ArticleDirectory Variables Conditions Loops Error Handling Methods Classes Using code from other files In the previous blogs, I introduced some ironruby-related content, because ironruby is in ruby. net, so its

Ruby code for batch download of railscasts

Rails3 is coming out, and it's time to start learning. You can find a good tutorial on the Internet: http://railscasts.com/episodes, which can be downloaded. Unfortunately, only 10 entries are displayed on each page and cannot be downloaded in

Ruby code snippet: Get the current class name

Get the currently running method name in Ruby on bigbold Code Fragment: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Module KernelPrivate Def This_method_nameCaller [0] = ~   / '

Ruby Study Notes (10)-differences between puts, P, and print

In common: it is used for screen output. Differences:After puts outputs the content, it will automatically wrap the text (if the content parameter is blank, only one line feed is output). If the content parameter contains an escape character, the

Ruby Study Notes (2)-basic usage of Classes

Some important differences between Ruby and C # are as follows: 1. Ruby is a dynamic language, and C # Is a static language-that is, after an object is new, Ruby can dynamically add some attributes or methods to the object instance (as does

Ruby File Reading and Writing

Complained todayThe blog has not been updated for many days, which affects reading mood. I just need to start it. ^_^ # Part One Afile = file. New ("C: \ 1.txt"," W ") Afile. Puts "The 1" Afile. Puts "The 2" Afile. Close   # Part Two

Jruby-strong combination of Java and Ruby

What is jruby? Jruby is a Ruby interpreter implemented in pure Java. Through jruby, you can directly run Ruby on JVMProgramTo call the Java class library. Many Ruby ides written in Java use jruby to explain the syntax. Jruby, an open-source Ruby

Programming ruby-objects, attributes, and methods

Objects and attributesThe song object we created has an internal State (such as song title and artist ). This state is private to other objects-other objects cannot access the instance variables of an object. Generally, this is a good thing. This

One-step learning of Ruby series (2): Functions in ruby

I. No parameter functions:   Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> IRB (main ): 010 : 0 >   Def HIRB (main ): 011 : 1 > Puts " Hello world! " IRB (main ):

Python and Ruby: Comparison of popular dynamic scripting languages

Dynamic scripts in recent yearsProgramming LanguageIn China, Python and Ruby are becoming more and more popular, and they are often compared. I think they have their own characteristics: 51cto editing recommendations: Ruby tutorials and tips 1.

Ruby author and Origin

Matz is a professional software engineer working in netlab. JP, a famous open source company in Japan, and he is also a high-profile open source evangelist in Japan. He participated in several open-source software projects, including cmail. This is

Use ruby to get the Email title and determine

Class String def has_one_in? (String_Arr) has = false string_Arr.each {| word | has = self. include? (Word) if has break end} has endenddef decode_subject (sub) if sub. include? ("B? ") Encode_str = sub. match (/= \? (.*?) \? =/). To_s

Ruby Reversible Encryption

Class Des Require 'openssl' Require 'base64' ALG = 'des-EDE3-CBC' KEY = "mZ4Wjs6L" DES_KEY = "nZ4wJs6L" # Encryption Def encode (str) Des = OpenSSL: Cipher. new (ALG) Des. pkcs5_keyivgen (KEY, DES_KEY) Des. encrypt Cipher = des. update (str) Cipher

Let ruby output two-dimensional arrays in a matrix Style

The Ruby pp () function can be used to output arrays in a very beautiful way. However, the disadvantage is that the two-dimensional array is displayed on one row. We want it to be output in the form of a subarray per row, as shown in Is it more

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