Ruby

What is Ruby? Recently, we have seen Ruby everywhere. ProgramStaff> there are also several serialization issues. I really want to have a better understanding of it. However, Baidu knows that only the following information can be provided: Ruby is

If a variable can only be used by an instance object, such variables are called instance variables. If a variable can be shared by all instance objects of a class, such variables are called class variables.   1) constants can be defined in classes

Go directlyCode: # Encoding: utf-8class dungeon # create Get Set Method # Save the player and room list attr_accessor: Player def initialize (player_name) @ player = player. new (player_name) @ room = [] end # sets the player location attribute

Using built-in database functions in Ruby to call orcale database is more troublesome, but fortunately the Open Source of the East expansion is very good, we can use the open source components of ruby-oci8 to orcale database for a series of

Ruby automation came into contact with the company. After writing several examples and applications under the company's framework, I also summarized the comparison and feelings between Ruby and Python development in the past. Of course, I know that

It has been more than two months since I started to learn Ruby language dependencies. I feel that I have never gained a lot. I even read all the ruby language learning tutorials, however, there is always a sense of no way to start.   Ruby can also

Will_paginate (http://blog.csdn.net/kunshan_shenbin/article/details/4182610 ), Now we plan to integrate it into rails3. In addition, the Code also includes jqgrid integration. 1. Open gemfile and modify it as follows: gem 'rails', '3.2.13'#gem

Use couchrest_model: Https://github.com/couchrest/couchrest_model 1. Modify gemfile and add: gem 'couchrest_model' Then run bundle install. 2. Run rails generate couchrest_model:config Generate the couchdb. yml file in the config directory, Then

There is a class named open3 in ruby that can be used to execute system commands. However, after Ruby is installed in WINXP, open3 supports Linux by default. If you run the code, the fork () cannot be found () method error. Fortunately there is a

Development Environment OS: Windows XP RUBY: ruby1.9.1 Rails: rails2.3.5 IDE: rubymine2.0.1   1. Create a rails Project   2. Modify/config/database. yml In the automatically created Project, the default database is SQLite. If the database is not

Restful embodiment ---- Resource Of course, it seems quite narrow to put restful and resource together. In rails, actioncontroller: Resources abstracts resources in rest. Here, I will not talk about the concept of rest, A huge amount of online

No function, with a half-day time to get the environment, with a half-day time familiar syntax, the function can be self-checked manual function query page in the http://www.rubycentral.com/ref/index.html function library official station in

1. Install JDK Jdk-6u7-windows-i586-p.exe 2. Install instantrails 2.1 decompress the package in any directory. InstantRails-2.0-win.zip (Instantrails has a lot of built-in software and has been configured, for example, Ruby 1.8.6 rails 2.0.2 MySQL

Ruby keywords yield The ruby keyword yield is a commonly used keyword in actual programming. Programmers who have just learned the ruby language must first master the usage of this type of basic keywords. Some basic keywords in ruby are essential

Ruby development configuration method:1. Before you start using Ruby, you must install (or verify that you already have) the Ruby interpreter and library, and Ruby development environment. Download: ruby186-25.exe2. Download the Eclipse plug-in:

Input and Output: Standard input: A = gets, gets is to get a row of data from the standard input, lines = readlines get multiple lines of content at a time until EOF (CTRL + D) Puts a, puts is printed to the standard output   File input and

From: http://galeki.is-programmer.com/show/183.html Like other oo languages, in ruby, object functions are completed by sending messages to objects, such as Str. upcase is the message that sends upcase to str. The vertex operator (.), it is used to

Each The simplest iterator is to access all elements collected continuously. [1,3,5,7,9].each { |i| puts i }   Output result: 1 3 5 7 9 The unique function is to implement the for loop of the Ruby language. Because the built-in loop

The ruby class is a single inheritance creature, so there is a module, implementing multi-inheritance, Note: The names of modules, constants, and classes start with an uppercase letter. , Module reference:1. If the referenced module is in the same

Record various problems and solutions encountered during Redmine mail synchronization Configuration 1. How to install RedmineHttp://www.redmine.org/projects/redmine/wiki/RedmineInstall 2. How to configure automatic email receiving and timed