Ruby

1. Differences with classes: A. No instance is available. B. No subclass exists. C. defined by module... end. 2. There are two main roles: A. As a collection of methods or constants, such as math. IRB (main): 001: 0> math.

A very simple file is the example (http://www.ruby-cn.org/book/ProgrammingRuby/ext_ruby.html) on programming Ruby, and if the extension is CPP, the following error occurs: Error c2664: 'rb _ define_method ': cannot convert parameter 3 from'Unsigned

I 've been wondering why Microsoft has been so silent about Ruby on Rails. It should be said that the earthquake effect caused by Ruby on Rails within the Java camp over the past year is a very rare opportunity for Microsoft. Although Java has been

Start learning Ruby today. The prepared book is programming ruby-2nd. To prepare an experimental environment, I want to install the ruby environment on my ubuntu. 1. Install the interpreter: Sudo apt-Get install Ruby 2.

Next we will introduce a commonly used IDE development tool. We believe you are familiar with netbeans and eclipse. Here I will mainly introduce netbeans as the main tool, if you want to know how to build Ruby in eclipse, you can search for relevant

Sharing the construction process of today's Ruby environment Aptana ide2.0 + Ruby 1.87 + rails2.1.2 ~ Vasdaqtv Development Environment setup manual WindowsXP workshop ~ 0. Prerequisites0-1. This order book describes the building environment of

Since last year, JavaCommunityStart to discuss a "new"Programming Language: Ruby: the scope of this discussion is growing and more participants are involved. Even Gosling, the father of Java, is involved. However, the common understanding is that

0. introduction I encountered a problem yesterday about object state transfer. Let me name it like this. A brief description is: for a person, he has functions such as eating, helping others, and falling in love, but these functions are sequential.

I recently started to read the Good Book Ruby on Rails developed by instructor Li Gang. It is a very good book and notes. I didn't use rails 2. 0, only useRails 1.2.6. 1) install rails 1.2.6Because it is used on the networkGem install rails --

When developing a ruby console application in Ruby, you may encounter a problem: You can use Ctrl + C to stop the running program. If no control is added, the program is aborted and an error stack is printed. For example, the following program:Cmd =

2011-01-27ruby mode for Emacs Blog type:  Tools Rubyemacslispsvn Http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_330/misc/    Ruby code Readme this file Inf-ruby.el program to run ruby under Emacs Ruby-mode.el Ruby mode for Emacs Rubydb2x.

As soon as the Japanese rails framework came out, it was really chilling. Our developers never had their own development frameworks. There were few open-source projects, and most of them were immature, in addition, some college students are

Reprinted please indicate the source: http://blog.csdn.net/guolin_blog/article/details/8868758 This is a copy version of Java Design Pattern dialysis, which is specially provided for Ruby lovers. If you are not familiar with Ruby syntax, please

In the previous section, we talked about how to set up the ruby + watir automated testing environment. In this section, I will learn more about harruby and watir.Ruby features The development of computer programming languages is always closely

Ruby Study Notes Reference Book -- Why's (Poignant) Guide to Ruby: Data Types and other basic operation information in csdn resources Ruby Variables Any plain, lowercase word is a variable in rubyFor example, X, Y, banana2, phone_a_quail Numbers A

Ruby Study Notes Ruby usageThe first half of RubyWe are defining, we are creatingFor example, blue_crystal = 1, leaf_records = 5 The second half of RubyPutting things in motionFor example, pipe. catch_a_star Conclusion: 1. Defining things 2.

From: http://developer.51cto.com/art/200908/147276.htm It is difficult to install Ruby on Rails, but it is also very convenient. To develop applications based on Ruby, we must install Ruby, Gem, rails, and mongrel. How to install Ruby on

Another classmate wrote a slightly garbled blog, revealing a yearning for "everyone still uses Java. Let alone the article itself. Just talked to Paul hammant about jruby in recent days. To put it simply, a classmate's guess is just a guess. The

Author: http://www.ruby-cn.org/reprinted please keep 1. IntroductionRuby is written by yukihiro Matsumoto in Japan. It is a simple and easy-to-learn object-oriented scripting language. Like Perl, Ruby has rich functions such as text processing and

2nd 2005.7.15 is added to the comparison with the J2EE framework. In the Java World, when hundreds of ORM frameworks and MVC frameworks fight together and attract most of the world's attention, Ruby on Rails appeared quietly. Advantages1. concise.