Transferred from: http://www.jb51.net/article/48802.htmRuby is filled with a series of hidden variables, and we can get some interesting information from these pre-defined global variables. Global process variables$$ represents the currently running Ruby process.>> $$= 17170We can kill it ourselves from the current process.>> ' kill-9 #{$$} '[1] 17170 killed IRB$? Represents the state of a recent child process>> ' echo Hello '= "Hello\n">> $?= = #>> $
Brief IntroductionThis article describes how to use the Ruby development tool (RDT) plug-in in Eclipse for Ruby development. This article will benefit the Ruby developers who want to learn how to use the Eclipse infrastructure for Ruby Development, and the Java developers interested in
Summary
In the last few years, scripting languages have become increasingly popular in Web application programming. This paper attempts to find the differences, advantages and disadvantages in today's three most popular languages: PHP, Python, and Ruby. Obviously, they have their own views and support, so it is a difficult task to state objective facts and to satisfy a scientific approach. These three languages will evaluate the history, evolution,
The customer's server is Ubuntu + apache2 + ruby on rails. Currently, some pages on the customer's server always report the 500 error. The ruby language is only known and has not been studied in depth. I have never set up a ruby server environment, and it is strange that the customer uses ubuntu as the server. After installing
Use C ++ to compile Ruby program extension tutorials.
One of Ruby's coolest features is to extend it using the application programming interface (API) defined in C/C ++. Ruby provides the C header file ruby. h, which is accompanied by many features that can be used to create Ruby classes, modules, and more. In addition
Build a Ruby On Rails platform using CentOS
System CentOS6.5 x64
Ruby On Rails is an open-source Web framework written in Ruby, similar to J2EE and PHP. Ruby On Rails is a very beautiful Web development framework and incorporates the essence of agile development: conventions are greater than configurations. You will fi
Ruby is filled with a series of hidden variables, and we can get some interesting information from these predefined global variables.
Global process variables
$$ represents the currently running Ruby process.
Copy Code code as follows:
>> $$
=> 17170
We can kill ourselves from the current process.
Copy Code code as follows:
>> ' kill-9 #{$$} '
[1] 17170 killed IRB
$
Use Eclipse for Ruby development easily-Linux general technology-Linux programming and kernel information. The following is a detailed description. [Indent] About three years ago, developerWorks released the "Ruby Development Tools plug-in using Eclipse", which introduced some features provided in the Ruby Development Tools (RDT) Plug-in of Eclipse, it was V0.5 a
One: Website and its blog:
1.http://ihower.tw/training/
The Ruby on Rails Learning Network is a professional website that communicates to learn about the knowledge of Ruby on Rails.
2.http://www.javaeye.com/wiki/rails_weeklyRails Weekly One question
3.http://www.5iror.com/Ihower's Tutorial
4.Http://railstutorial.org/book
An English course
5.Http://www.javaeye.com/wiki/rails-everydayEvery day a dose
Ruby is an object-oriented metaprogramming language that surprised many developers and even raises the question: is there a really better language than Java and C? This article will give a preliminary discussion on the ruby language and try to answer this question.
I. Introduction
Have you ever heard of Ruby? Today, it has become a popular topic in the software
Before you start
About this tutorial
Ruby on Rails (rails) is a full-stack WEB application framework written in Ruby, and Ruby is a rich, free, extensible, portable, object-oriented scripting language. Rails is very popular among WEB application developers. With it, you can quickly and efficiently develop Web applications and deploy them to any web con
Ruby on Rails has always been popular in China and the world. You will see stacked Ruby and Java in Java websites, search engines, and hot forums, and the two of them seem to be incompatible with each other. Even oreilly, a master who has been supporting Java for many years, began to publish Ruby books to lead people out of Java. The scope of this discussion is g
Parse Ruby variables in detail
This article describes how to parse the variables in Ruby in detail. It is one of the most basic knowledge in Ruby learning. For more information, see
The location where the variable holds the data of the program to be used.
Ruby supports five types of variables. In the previous section,
Document directory
Add a MySQL database
Add a java db (Derby) Database
Download Ruby support
If you have not installed the netbeans 6.0 IDE, open the netbeans ide 6.0 download page and download the IDE versions that contain Ruby support. If you already have netbeans ide 6.0, but there is no ruby support in netbeans ide 6.0, follow these steps to add
Ruby is an interpretive, object-oriented, dynamic type of language. The strategy adopted by Ruby is to find a balance between flexibility and run-time security. With the advent of the rails framework, Ruby also blockbuster around 2006 and also guides people back to the fun of programming. Although Ruby is not as effici
Introduction: Assuming that you are a C + + developer, you need to quickly perform some prototyping with Ruby. When you pick up a ruby reference book (such as pickaxe) or browse the Ruby Web site, you'll see some familiar constructs such as class declarations, thread support, and exception handling. Just when you think you know how
Ruby programming language is developed by the Japanese pine line, is a simple and fast object-oriented programming language, today mainly talk about the ruby framework--ruby on Rails (http://www.maiziedu.com/course/ruby/), Maybe some friends don't like Ruby, but as a languag
1. Writing should be standardized, rather than creating different styles like C.Java is obviously a language that is easy to unify the programming style, while Ruby is obviously a language that is difficult to unify the programming style. Someone in the javaeye forum once said: Reference
The Java language, the master and the Low-hand code are similar, while Ruby is different.
The syntax of the Java program
Ruby, as an emerging language, has developed rapidly over the past few years with the help of the rails killer application. This articleArticleThis is my summary of Ruby over the past month. Of course, the main tone is for reference.
Peter Cooper's five essentials for your ruby toolbox. To put it bluntly, let's start. Summary:
Rubygems
A good id
Ruby programming language is developed by the Japanese pine line, is a simple and fast object-oriented programming language, today mainly talk about the ruby framework--ruby on Rails (http://www.maiziedu.com/course/ruby/), Maybe some friends don't like Ruby, but as a languag
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