The command line with the Wizard function is provided here to help you try to learn Ruby

Http://tryruby.hobix.com/provides a command line that, in addition to the built-in Ruby method, provides the following interesting and useful five commands: The help wizard takes about 15 minutes to help you learn the most basic things of Ruby.

Ruby eventmachine install

System Environment: Windows 7 SP1 Ruby version: 1.9.2-P0 Devkit version: 4.5?   When you install eventmachine in this environment, errors are always reported.   Building native extensions. This cocould take a while...Error: Error installing

Ruby study notes (8)-"four static methods" and "two Singleton methods"

# Class test def test. staticmethod1 puts "test. staticmethod1 "End def self. staticmethod2 puts "test. staticmethod2 "end class   # Class test def Method1 puts "Method1" endendt1 = test. newdef t1.singlemethod1 puts "t1.singlemethod1" endclass

Call shell commands with process substitution syntax in ruby

A strange problem was found during Ruby writing yesterday. We call the shell command in Ruby. Usually we can enclose the shell command by using parentheses (the one on the left of the number key 1), for example: 'LS-l' This lineCodeIs a string

Ruby and watir

Converted from 51testing.com, the original see: http://bbs.51testing.com/thread-171535-1-1.html http://swik.net/Watir+Programming http://www.pragprog.com/# A Lot Of good source code Oh http://docs.rubygems.org/# rubygems http://www.fxruby.org/#

From python to Ruby)

Normal 0 7.8 磅 0 2 false false false MicrosoftInternetExplorer4 PythonIs a very good language, fromPythonMigrateRuby, You will find some Syntactic differences.   Similarity

Ruby solves the sudoku Problem

DetailsAlgorithmPeter norvig has already made it very clear, so I won't be jealous. Beginner Ruby trainer.   ClassSudokuWidth= 9Height= 9Unit= 3Def initialize ()Init_dependency_table ()End Def OK (quiz_candidates)Quiz_candidates.find () {|

Programming ruby-Regular Expression

Regular Expression Most of Ruby's built-in types and otherProgramming LanguageVery similar. Mainly include strings, integers, floats, and arrays. However, only the script language, Such as Ruby, Perl, and awk provide support for built-in

Ruby common internal variables

In RubyProgramYou will often see some variables starting with $. These are not the global variables we set in the program, but the variables that have been set inside the system, they represent some specific meanings. Some common internal variables

Ruby study Note 1

Write a record of the Ruby Blog system. It is also a bit of a record for me to learn Ruby. First, I will introduce my learning environment.System: ubuntu12.04Documents: techotopia, Ruby documents, the hard way learn Ruby and other documentsRecord:

Reading code to learn the closure of Ruby

# Code source: http://rubyer.me/blog/917. you can easily learn four kinds of closures of Ruby: blocks, procs, Lambdas, and methods. # Firstclass array def iterate! Self. each_with_index do | N, I | self [I] = yield (n) end endendarray = [1, 2, 3, 4]

Ruby metaprogramming meta Programming

module A;endmodule B; include A;def hi; puts "Hello gays! enjoy Ruby! ";end; endclass C; include B; end$f = File.open("metaProgram.rb")$lines = $f.readlinesdef p(a,no)#$f.readline until $f.lineno == (no-1) #puts "#{a}------>->->#{$f.readline}"

Ruby two-week Summary

I recently used Ruby to write an automation program. It took two weeks and it was quite convenient. Let's talk about it: 1. Ruby is easy to read the yaml file. during the processing of the. ini file, no database support was found, so I checked the

10 reasons for learning Ruby

Recently, Ruby On Rails is very popular. This is a brand new way to develop Web programs. Using its advanced construction can help users quickly build a Web platform. However, it is not clear to many developers why they need to switch to Ruby.

Introduction to Java-based Ruby interpreter JRuby

Rails accelerates and simplifies the development of Web applications, but it makes people feel immature, especially in terms of high-end enterprise-level functions. On the other hand, the speed, stability, and functions of the Java platform and its

How to call win32ole IN Ruby

Since its appearance, Ruby has been accepted by more and more programmers. Here we will give you a detailed introduction to the techniques related to Ruby's win32ole call. Ruby module OpenURI to get http/FTP address content Analysis of Ruby

Automatic batch download of Sina light blog Images

This program depends on the Ruby runtime environment. Currently, it is only tested in windows.Note: 1. Open 'setting.txt 'before running to set the path for saving the image. The first line of the file is the starting line (if 50 is used, the

Rubinius 2.0 released, Ruby Virtual Machine

Rubinius 2.0 is released. For official release notes, see here. Rubinius is a virtual machine that runs Ruby programs. It carries the Ruby core library. Rubinius's design determines its powerful debugging function, allowing regular Ruby Cores

Ruby iterator usage

The iterator was not invented by Ruby. it is widely used in various object-oriented languages. this is also true in Lisp. even so, the concept of iterator is not familiar to many people, so we will give a more detailed introduction here.You know,

Introduction to three gems for ruby to execute periodic tasks

1. whenever First, whenever is based on the linux cron service. Therefore, there is no direct way to use the gem on the windows platform. Whenever should be regarded as a cron translator, which translates ruby code into a cron script, so that

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