ruby on rails tutorial

' ========= 'Test output[Email protected]:/home/ywt/ror_tests/ruby_tests# Ruby Print_test.rbhello Worldhello World =========ThatPuts str = print str + print New_line (New_line under Windows is ' \ r \ n ', Linux above is ' \ n ')Class General definitionClass AclassendNote: The first letter of a class name must be capitalized! (Python does not require this)General definition of inheritanceClass ChildThat is, the inheritance character is ' Questio

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.

1. Invocation of the method2. Custom method3. Custom methods with default values4. Custom method with return valueA method, or a function, actually contains a piece of code to perform a particular process.def Add (a=3,b=2) return A +bend' /study/ruby/intro_rails/maizi/381-4026/08function.rb '= = TRUEIRB (main):003:0> Add= 5irb (main):004:0> add 4=> 6IRB (main):005:0> Add 4,5=> 9IRB (main):"Ruby on

Mongrel is a ruby HTTP library used to deliver Ruby web applications. In fact, do not use Apache mongrel alone can run the ROR program, the online tutorial using Apache is used to do web proxy, so that the website will not have a http://www.unbe.cn: 8081/such port declaration. I just did the test. Multiple port numbers won't affect me, so I only configured mongre

Keywords: Ruby on Rails, instantrails, windows, getting started, tutorial This article comes from my blog in blog Garden: http://www.cnblogs.com/dahuzizyd Reprinted, please note that the source address of the blog in the blog garden has always been trying Ruby on Rails, bu

machineInitialization completeStart the environment execution vagrant Halt shutdown environment by executing vagrant up in the appropriate directory when usedOther points of attentionAfter successful initialization, a configuration file named Vagrantfile is generated in the appropriate directory, which can be set for network, memory size, and other content.This article is from the "7692323" blog, please be sure to keep this source http://7702323.blog.51cto.com/7692323/1596334Build a

1. The following two reasons are causing your Rails application to slow down: Ruby and rails should not be used as the preferred place for Ruby and rails. (with Ruby and Rails do

Explore some methods to optimize Ruby on Rails performance, rubyrails 1. There are two reasons for slowing down your Rails application: Ruby and Rails should not be used as the preferred choice. (I used Ruby and

Ruby on Rails is a framework that makes it easy for you to develop, deploy, and maintain Web applications. October 2015 programming language leaderboard Ruby entered the top 10 of the Tiobe leaderboard, which shows how popular it is. This article will help you open the door to Ruby on

Install ruby on rails development environment in win7, win7rails PrefaceMany articles have said that the ruby environment is very difficult to build on windows, and various strange problems may occur. Therefore, we recommend installation and development on linux and mac. However, I followed the tutorial, and there were

At first, I saw a lot of attractive applications about Ruby on Rails. Like many more eager programmers, I learned Ruby syntax and plunged into the beautiful palace of Rails, experience the sense of accomplishment of rapid Web application development, but I have to always be confused by lack of in-depth understanding of

Reprinted: http://www.5itjob.net/html/86/86_itemid_1183.html Ruby on Rails is a relatively new web application.ProgramFramework, built on the ruby language. It is promoted as an alternative to the existing enterprise framework, and its goal, in short, is to make life, at least web development, easier. In this article, Aaron rustad compares some key archite

Ruby on Rails (also known as rails) is a ruby framework for Internet applications that support databases. I've now used Rails for two different applications and involved two other associated programs. For the upcoming new book Java to Ru