Ruby

The ruby language has existed for a long time and has never been popular in China. Many people only know this language and there are few people. Every language has been developing for more than ten years and has become better and better. There must

Longest Common subsequence, LCs, dynamic planning implementation. # Encoding: UTF-8 # Author: Xu Jin, 4100213 # Date: nov 01,201 2 # longest-commom-subsequence # To find a longest commom subsequence of two given character arrays by using LCS

# To generate xml, you must create a rexml: document object instance.  Require "Rexml/document" File = file. New ("test. xml", "W + ")# Create an XML file and write the following content .Doc = Rexml: Document. New # Create XML content # Add a node

-Ruby home: www.ruby-lang.org -Ruby Repository: www.rubyforge.org raa.ruby-lang.org -Ruby documentation: www.ruby-doc.org -rails home: www.rubyonrails.com -newsgroup: http://groups.google.com/group/comp.lang.ruby/topics -Info: www.rubyinside.com

Some people say that textmate is good, but this is suitable for MAC systems. In Windows, I started with editplus and started with Ruby syntax. In addition, the tree map with directories on the left is very friendly, that is, the files in each

Ruby installation in Linux Ruby installation package: Http://www.ruby-lang.org/en/downloads/Ruby-1.8.6-p111.tar.gz [you can install any version! The methods are the same. But remember that there are commands for these steps]Unzip and

Original Http://www.ruby-lang.org/zh_cn/documentation/ruby-from-other-languages/to-ruby-from-java/ Omit blablaSimilarity: Memory Management, with the garbage collection function All objects have types. Public, private, and protected Methods

An unexpected problem occurs in a running program. A file to be read does not exist. When you want to store some data, the disk is full. You may enter inappropriate data.   Ruby> file = open ("some_file ") Err: (eval): 1: In 'open': no such file or

Reprinted please indicate the source: http://blog.csdn.net/guolin_blog/article/details/9400153 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

After some comparisons and selections, we finally decided to use the popular Ruby as the first test script for my automated testing framework design, in addition, its test tool watir almost perfectly replaces the so-called charging tool qtp, and has

Ruby array sorting implementation and performance comparison Wei renyan 2010.8.21 Recently, I have been studying programming Pearl River. I have explained various sorting methods and gradually explained the advantages and disadvantages of optimizing

  #a sudoku solver in Rubymodule Sudokuclass PuzzleASCII=".123456789"BIN="\000\001\002\003\004\005\006\007\010\011"def initialize(lines)if(lines.respond_to?:join)s=lines.joinelses=lines.dupends.gsub!(/\s/,"")raise Invalid,"Grid is the wrong size"

 Link: http://mislav.uniqpath.com/poignant-guide/book/chapter-2.htmlchapter 2: kon'nichi wa, Ruby Section 1: Open this book Pretend that you have already opened this book (although you may have already opened this book), you only find that there is

Smalltalk   Like smalltalk, Ruby is also a dynamic, object-oriented language. You do not need to specify the Data Type statically. Everything is an object. In addition, both have a garbage collection mechanism. In smalltalk, flow control

Document directory About Style About Dynamics Structure Others Usage /*************************************** * Call by name Everything is an object and never closes Hook everywhere Yield/block/proc/Lambda, first-class citizen Symbol and

Recently, I need a fast development language. Currently, the hot and fast development languages are Python and Ruby. Ruby and Python are both excellent scripting languages. Although their design philosophy is almost completely different, they are

The dynamic planning algorithm is used to calculate the shortest editing distance. #encoding: utf-8#author: xu jin#date: Nov 12, 2012#EditDistance#to find the minimum cost by using EditDistance algorithm#example output:# "Please input a string: "#

Exception Handling is a common problem in the development process. Basically, all advanced languages have their own exception handling systems. Ruby is no exception and is easy to use. The raise method is used to throw exceptions in Ruby. Remember,

This article is original. Reprinted Please note:Author: UtensilBlog:Http://blog.csdn.net/utensil/Email:Utensilcandel@gmail.com   Finally, I bought practical rails projects. It turns out that this article "conquer Ruby on Rails" has blossomed

Why's lucky stiff. I am just a porter. You don't have to read the original text. Well, suppose there is an instance method in a class. We hope this method runs only once ." Cut, I thought it was an egg. "The old people who have been familiar with