Ruby

This article mainly introduces the concept of the scope of Ruby, the need for friends can refer to the The range is everywhere: January to December, 0-9 days, 50 to 67 lines, and so forth. Ruby supports scope and allows us to use a range of ways:

Ruby is a powerful object-oriented scripting language that allows you to quickly and easily object-oriented programming. Sometimes it's a little "fuss" to develop small projects using formal object-oriented languages such as Smalltalk, Eiffel, or C +

Modules are methods, classes, and constants that are grouped together. Module two main benefits: The module provides a namespace and avoids name collisions. Module to implement a hybrid factory. The module defines a namespace in which

Iterators are methods that are supported by collections. An object that stores a set of data members is called a collection. In Ruby, arrays and hashes can be called collections. The iterator returns all the elements of the collection, one after

Literal constructor for Ruby regular expression: //Try this: >>//.class=> RegexpPattern matching consists of two parts, a regular expression (regexp), and a string. A regular expression predicts a string that either satisfies the prediction or is

Ruby treats files and I/O operations as Object oriented. Ruby's I/O system The IO class handles all input and output streams. IO class An IO object represents a readable writable connection to a disk file, keyboard, screen, or device. These

Example 1 Require ' NET/SMTP ' Require ' iconv ' Def send_email (from, From_alias, to, To_alias, subject, content) Subject_n = Iconv.conv (' utf-8 ', ' GBK ', subject) msg = From: #{from_alias} To: #{to_alias} mime-version:1.0

1) Install Ruby Download installation package:http://rubyforge.org/frs/?group_id=167, I downloaded the Rubyinstaller-1.8.7-p302.exe After loading, you can use RUBY-V test whether the installation is successful, such as figure, if a version

In the previous Ruby on Rails development from scratch (Windows) (iii)-Implementation of the jump between pages, we created two pages for the jump migration, this time we write a single form of maintenance of the TIM Delete Check the example. 1.

If you are a student, you should be c,c++ and Java. There will be some VB, or c#/.net. How much you may have developed some Web pages, you know some html,css and JavaScript knowledge. On the whole, it's hard to see how many students have the ability

http://www.aqee.net/why-every-programmer-should-learn-python-or-ruby/If you are a student, you should be c,c++ and Java. There will be some VB, or c#/.net. How much you may have developed some Web pages, you know some html,css and JavaScript

Looking for a lot of online, not all. Toss for a long time, here record:One. Download the window version of ruby193, then next installs to the specified directory (the installation interface will have 3 selection boxes, I have all chosen here, there

1. The microblog model is as follows:2, the creation of Weibo resources, the command is as follows:$ rails Generate scaffold micropost content:text User_id:integer #生成微博资源$ bundle EXEC Rake db:migrate #执行迁移, update the database, use the new data

The founder of Ruby talked about the ruby blocks and closure structure at on. I want to repost on Qiu Haifeng's translation network (0) font size: T | T This conversation is translated from the third part of the interview with Matz on the artima.com

What is Symbol? Ruby is a powerful object-oriented scripting language (the ruby version used in this article is 1.8.6). In Ruby, symbol represents a "name", such as a string name and an identifier name. To create a symbol object, add a colon Before

In Rails, a MySQL Partition Table is used to improve the performance. railsmysql The partition table of MySQL is a simple and effective feature for processing large data tables. Through this feature, applications can efficiently process large data

Ruby-v # view the ruby VERSION ruby-e '''require "watir"; puts Watir: IE: version'' # view the watir VERSION Rvm list known # list known ruby versions Rvm install 1.9.3 Rvm use 1.9.3 | rvm use system Rvm use 1.9.3 -- default Rvm list # list local

Ruby uses the simple factory mode and factory method mode in the design mode, and the ruby Design Mode I have read the ruby design pattern before, But I gradually forget it. Now I bought a big talk design pattern, which doesn't look so boring. By

Over the past few days, I 've talked about a lot of things about Ruby. To sum up, I wrote this blog. At the beginning of this year, I plan to thoroughly experience Ruby on rails. For me, I have not been familiar with "new language" for many years.

Page 3Overview Description and execution: Python and Ruby are highly interactive;○ Compilation and execution: Pascal, C, fast.N local execution, such as C, C ++;N virtual machine execution, such as Java, C #. ○ Dynamic languages, such as