Ruby

Please considerCode Class TestPrivateDef self. TestPuts 'arst'EndDef TestPuts 'arst'EndClass Def Test2Puts 'arst'EndPrivateDef test3Puts 'arst'EndEndEndTest. TestTest. Test2BeginTest. test3Rescue standarderror => EP EEndBeginTest. New. TestRescue

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

Ruby means "Ruby", while Ruby on Rails is the ruby that just pulled out of the mine and lie on the rails. Ror (Ruby on Rails) is a web development framework based on the dynamic scripting language (Ruby). Its main application field is Web

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

After studying flex for a while, we found that actionscript3 is as dynamic as Ruby and can build very powerful clients. However, for some text-based systems, it is a bit cool-killing, however, in the future, the client is moving towards multi-media,

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

The ruby method can accept code blocks as parameters, which is a very flexible method and a very good design idea. Suppose there are three methods as shown in 1: Figure 1 As shown in figure 1, a large number of code blocks of method A, Method B, and

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

3. identifier An identifier is a name.An identifier consists of letters, numbers, and underscores, but cannot begin with a number. It cannot contain blank or non-printable characters, or punctuation marks.The identifier that starts with 26

I recently read the basic syntax section of [ironruby unleashed feb.2010] and found that "use a different..." appears in many places in the book. Indeed, many basic operations in Ruby provide many methods/aliases, and many odd syntax (sugar ). In

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

Development Environment: OS: Windows XP RUBY: ruby1.9.1 Rails: rails2.3.5 Will_paginate: will_paginate2.3.11 (Run the gem install mislav-will_paginate -- source http://gems.github.com in the command line) IDE: rubymine2.0.1 DB: mysql5.0.9   This

Document directory Ruby Module Mix-in Require and Load Module Summary Array String Regular Expression Iterator, code block, Closure   Ruby Module Ruby uses module... end to define a module. The module provides a namespace to prevent

Document directory Ruby class Class inheritance Polymorphism Dynamic Language Encoding   Ruby class The first letter is capitalized. The instance variable name starts with @, and the method name and parameter name start with a lowercase

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

I wrote this article a long time ago. I can't find where the post is. I will try again. Because Google cannot search articles on oe.monweb.cn (this is a feature called Anti search engine) However, I declare that ASE has nothing to do with the recent

Ruby On Rails has been a hot topic recently On the Internet. Many people have given him the praise of the "alternative to Java Enterprise Application Development. Even a foreigner said on the Internet that a project with Java4 months was completed