Ruby

Ruby is an object-oriented programming language, and she pursues "easy and fast object-oriented programming." Ruby is an interpreted language, so you can program quickly without compiling. While Ruby has a powerful text-processing function like Perl,

This article mainly introduces the longest common subsequence algorithm implemented by Ruby, this article gives the implementation code directly, and the friends who need it can refer to the following The longest common subsequence, LCS, dynamic

GEM-related commands use 1. Show help and version of Gem Copy Code code as follows: Gem–h/--help #显示gem的帮助 Gem–v/--version#显示gem的版本号 2. List all available software for the remote library Copy Code code as follows:

Basic Rails Applications Now let's start with a basic rails application. For a better presentation, I use Ruby 2.2.0 and Rails 4.1.1 Run at Terminal: $ RVM Use 2.2.0 $ rails New && CD Docker-test To create a basic controller:

In the system developed by the author, there is a large number of data needs analysis, not only the data analysis is accurate, but also has certain requirements for speed. Before writing the test code, the author used several great methods to

Ruby is an open source dynamic programming language that has beautiful syntax for building scalable Web applications. Ruby Gems can be a good way to improve the development efficiency of ruby developers. There are several ways to install Ruby on an

Enter the interactive interpreterpythonIrb/prySet Encoding#coding =utf-8#coding: Utf-8Package ManagementEasy_install/pip GemPip Install MarkdownGem Install MarkdownNotesPython line Comment # startsPython Multiline comments use three single quotation

1.require ' Upyun ' reference Upyun 2.upyun = Upyun::rest.new (bucket,operator,password,options,endpint)3.res = Upyun.put ('/1/2/3/4/5/hi.jpg ', File. New ('/workspace/hi.jpeg ')) 4.puts "Response is #{res}" Look at the return information if it is

Download the installer online railsinstaller-3.1.0 after automatic installationThe following error occurredC:\users\admin>gem Install Rubygems-updateError:could not find a valid gem ' rubygems-update ' (>= 0), where is:Unable to download data from

Recent work requires learning a new language: Ruby. Uh, knowing that she exists because of an article circulating onlineHow to teach sister and girlfriend programming within two months, today finally to use, some small excitement ~ ~ and learned the

Ruby, like other object-oriented languages, uses classes to organize methods, and then instantiate classes to create objects.1. Construction methodUsing double quotation marks is the literal construction method of a string, or you can use the named

Ruby string forzen and unfreeze problem string processing is the first problem question to learn a new language   When we look at the return of super people, remember there's a superman named freeze in it? This guy has a trick, drink water, and then

1. Install Ruby, rails, mongrel, and apache2.2 download one-click Ruby install from the rubyforge website and run the installation program. Then Ruby and rubygems are installed. Run the command: Gem install rails-ygem install mongrel-ygem install

Class methods and class extensions in Ruby object-oriented programming, ruby Object-Oriented Programming Class Method The essence of a class method is a single-piece method that lives in a single-piece class of this class. Three methods are defined:

Ruby Gem command and rubygem command I. Introduction Gem is a standard package for managing Ruby libraries and programs. It is very convenient to find, install, upgrade, and uninstall software packages through Ruby Gem (such as http://rubygems.org/)

Summary of loop statements in ruby and summary of ruby loop statements While (when ...) Loop 　 　 While Condition Statement 1; Statement 2; statement... End Single Row while LOOP (Statement 1; Statement 2;

Using Ruby's SOAP4R to compile a SOAP server tutorial, rubysoap4r to compile soap What is SOAP? Simple Object Access Protocol (SOAP) is a cross-platform and language-independent RPC protocol based on XML, usually (but not necessarily) HTTP. It uses

10 essential and useful Ruby on Rails 4 Gems   The Ruby on Rails framework is a powerful tool used to develop Web applications. It is equipped with a large number of built-in functions to help accelerate the development of your Web applications,

Differences between var and var when defining variables in javascript, javascriptvar Let's take a look at a piece of code. Function show () {alert (abc);} var abc = "defg"; show (); People who have experience in C ++ or Java programming may say: "

Some basic operations on Ruby processing time, And ruby processing basic operations Get the current date and time: The following is a simple example to get the current date and time: #!/usr/bin/ruby -wtime1 = Time.newputs "Current Time : " +