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To use boost. RegEx, You need to include the header file "Boost/RegEx. HPP". RegEx is one of the two libraries in this book that need to be compiled independently (the other is boost. signals ). You will be glad to know that if you have built
The knowledge of Rule expressions may be one of the things that many programmers often forget. In this article
Article , We will
Assume that you have mastered the usage of Rule expressions, especially the expressions in Perl 5 .. Net Regexp class
1 overviewThis may be a confusing, even confusing topic, but that is why the discussion is necessary.
In regular, some characters that have special meaning, or sequences of characters, are called Meta characters, such as "?" Indicates that the
To use Boost.regex, you need to include the header file "Boost/regex.hpp". A regex is one of two libraries in this book that needs to be compiled independently (the other is boost.signals). You'll be glad to know that if you've built a boost--, you
ArticleSource: msdn. NET Framework class library RegEx class http://msdn.microsoft.com/zh-cn/library/system.text.regularexpressions.regex
Static and instance methods
Execute Regular Expression operations
Example
1. Use regular
The namespace using system. Text. regularexpressions needs to be introduced. (If this parameter is not introduced, system. Text. regularexpressions. RegEx must be written when RegEx is written)
Replace method of Regular Expression
String T = "sdf1234
C # Regular Expression Regex class usage,
I. C # Regular Expression symbol Mode
Character
Description
\
Escape Character, escape a character with special functions into a common character, or vice versa
^
Match
The Regex class represents a regular expression that is not mutable (read-only). It also contains a variety of static methods that allow you to use other regular expression classes without explicitly creating instances of other classes.
Overview of
What is a regular expression?Regular expressions, also known as formal representations, general representations (English: Regular Expression, often abbreviated as regex, RegExp, or re) in code, are a concept of computer science. A regular expression
C # Regular expression notation pattern
Characters
Description
\
An escape character that escapes a character with special functionality to a normal character, or vice versa
^
Match the
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