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Annotations, variable declarations, Array Operations, and Ruby variables in the ruby tutorial I read an article "PHP basic tutorial" on "blog Park" two days ago and introduced PHP. D guago also wrote a "Ruby getting started tutorial" when learning Ruby ". It should be noted that this article is suitable for beginners w

Ruby basic syntax getting started tutorial, ruby basic syntax tutorial Let's write a simple Ruby program. All Ruby file extensions are. rb. Therefore, put the following source code in the test. rb file.Instance #!/usr/bin/ruby -wputs "Hello,

Most Ruby programs, their design, logic, and action, are all centered around objects. The main task of writing a Ruby program is to create objects and then give them the ability to perform actions. Ruby is an OOP language, an object-oriented language in which you perform calculations, data processing, input, and output by creating objects and then letting the ob

To install Ruby, go to the ruby official website to download the Windows Installation Package of ruby1.56. After installing Ruby, open the DOS window and enter ruby-V to display it. Ruby 1.8.6 (patchlevel 0) [i386-mswin32] indicates that

Tutorial on processing file input and output in Ruby, and tutorial on ruby processing output Ruby provides a complete set of I/O-related methods, which are implemented in the Kernel module. All I/O methods are derived from IO classes. Class IO provides all basic methods, such as read, write, gets, puts, readline, getc, and printf. This section describes all the b

About Ruby on Rails Ruby on Rails is an application stack that provides developers with a framework to quickly create a variety of Web applications. ruby on Rails does take a little while to install on a virtual server, but luckily there are a lot of helpful tools to make this process as easy as possible. you can run this tutorial on your droplet as a user with S

In-depth analysis of the use of the command mode in Ruby Design Mode Programming, ruby Design Mode The command mode is the design mode with a high usage of the object behavior type, alias: Action, Transaction) Intent: encapsulate a request as an object so that you can parameterize different requests, queue requests or record request logs, and support cancelable operationsThe so-called "different requests" a

Example parsing: Implementation of observer mode in Ruby design mode development, and ruby Design Mode In general, the observer mode should be defined as follows: building a clean interface between the source of news that some object has changed and the consumers of that news. The observer mode establishes a clean interface between the producer and consumer of the message, so that the coupling between the p

Concurrent concurrency and global lock details in ruby, and ruby parallel global explanation Preface This article mainly introduces you to ruby concurrency and global locks. We will share the content for your reference and learning. I will not talk much about it below. Let's take a look at the details. Concurrency and Parallelism During development, we often come

Ruby Learning tips for building a ruby environment under Linux1. Preface2.Linux Installing the ruby EnvironmentFirst, prefaceThis blog post records the construction of the Ruby programming environment under Linux.This article is based on the following articles:Http://www.cnblogs.com/xfiver/archive/2012/03/08/2385833.ht

Deploy the Ruby server and ruby# Create a project directory/Opt/logs/TV-cibn-cms# Install rbenv and ruby 1.9.3 IN ruby# Install and compile related packagesYum install-y gcc openssl-devel libyaml-devel readline-devel zlib-develSu-ruby #/home/

Python and Ruby are both excellent languages, all of which emphasize people-oriented and have their own merits. However, I feel Ruby seems more friendly. Ruby draws on the advantages of smalltalk, Python, and Perl. We recommend that you learn Ruby resources: English Clear and short free ebook, I think it is

When learning a new programming language, we must be clear about a few questions:What is the type model of the language?Strongly typed / weakly typed, static type / dynamic typeThe type model changes the way the problem is handled and controls how the language runsWhat is the programming paradigm of language?Object-oriented, functional, procedural, etc.How to interact with the language?Compiling, interpretingWhat is the judgment structure of language (decision construct) and the core data struct

Ruby's installation can go to Ruby's official web site to download the Ruby1.56 Windows Installer package, install the after installation, open the DOS window, input ruby-v display Ruby 1.8.6 (2007-03-13 patchlevel 0) [I386-mswin32] shows that Ruby has been installed successfully and the version number is Ruby 1.96.

The founder of Ruby talked about the ruby blocks and closure structure at on. I want to repost on Qiu Haifeng's translation network (0) font size: T | T This conversation is translated from the third part of the interview with Matz on the artima.com website to help you understand the blocks and closure structures in ruby. AD: This interview is an interview with

Explain the methods in Ruby and the Ruby Methods The Ruby method is very similar to the functions in other programming languages. The Ruby method is used to bind one or more repeated statements in a unit. The method name should start with a lowercase letter. If the name of a method starts with an uppercase letter,

Project Address: Ruby-prof In the previous Profiling tool in Ruby, we listed several of the most commonly used profilers, but just a brief introduction, this time detailing how ruby-prof is used. Ruby-prof is a powerful, support CPU, memory use, object allocation and so on performance analysis, and provides a lot of fr

Analysis of Ruby relay and message-related knowledge, analysis of ruby Inheritance allows you to create a class as the refinement and specialization of another class ). For example, in our automatic karaoke system, the concept of "Song" is encapsulated in the Song category. Then, as the market grows, we need to provide karaoke support. A karaoke song is no different from other songs (it just does not have a

Introduction to file operations in Ruby and file operations in ruby Ruby provides a complete set of I/O-related kernel modules. All I/O methods come from IO classes. Class IO provides all the basic methods, such as read, write, gets, puts, readline, getc, and printf. This chapter covers all basic I/O functions available in Ru