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Instructions on how to use the XML data processing database REXML in Ruby, rubyrexml Use REXML as a treeThe purpose of REXML is to be enough. To the maximum extent, it can complete tasks well. In fact, REXML supports two different styles of XML

Using Rexml in tree modeThe purpose of Rexml is just enough. To the greatest extent, it can accomplish the task well. In fact, Rexml supports two different styles of XML processing-"tree" and "stream". The first style is a simpler version of what

Chapter 2 Structure and running of Ruby programs The ruby annotation starts with # And ends until the end of the line. Ruby does not have/*... */C style annotations. If # appears in the string or regular expression literal, it is a part of a

String The two classes, String and Symbol, provide the ability to represent text and work with text. The two classes are very different. String representation A string is generally wrapped in a set of quotation marks: "That's a string."Single

Analysis of Ruby source code layout and programming style, analysis of ruby source code Layout Use the UTF-8 as the source file encoding. Each indentation level uses two spaces (also known as soft tabs). Do not use hard tabs # bad - four spaces

This article mainly introduces some of the basic methods of manipulating strings in Ruby, including the processing of string compression and decompression, the need for friends can refer to the following A string object in Ruby holds and

Three quick sorting algorithms implemented by Ruby This article mainly introduces three fast sorting algorithms implemented by Ruby, this article provides the normal version of quick sorting, the Randomization version of quick sorting, and the

A string object in Ruby holds and manipulates one or more bytes of any sequence, usually representing the character representation of the human language. Simple string literals are enclosed in single quotes (single quote characters). String value

Ruby implements three fast sorting algorithms: I just learned Ruby. It happened that the algorithm teacher encouraged me to write algorithms in unfamiliar languages. I will use Ruby ~~Ruby is really amazing, and many intuitive methods can be used ...

Ruby Getting Started notesEverything is the object"Hello". LengthMethodDefinition: def start end endNaming generally uses underscores to separate wordsYou can embed an expression in a stringreturn value: A) return+ return value B) function The value