Regular expressions is a set of syntax matching rules. Various languages, such as Perl,. Net, and Java, have their own shared Regular Expression Libraries. In. Net, this class library is called Regex.To put it simply, Regex is an application class
In a recent project, it was found that the previous regular matching modules had a very bad performance penalty for long string matching, so the various regular matches under the long string were slightly studied and attached with examples. This
From http://hui06242007.blog.163.com/blog/static/46967621200851931436619/
C # RegEx in-depth Regular Expressions
Regular Expressions is a set of syntax matching rules. Various languages, such as Perl,. net, and Java, have their own shared Regular
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
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
Regex usage in MongoDB
Background
Part1: Preface
Anyone who uses MySQL or other relational databases knows that fuzzy queries are used in similar ways:SELECT * FROM products WHERE sku like "% 789 ";
The regex in MongoDB described in this article
The ExtJS regex's validation attributes are in two cases, one is a red prompt box, and the other is a comment-like message that appears on the Tip box, but adds Ext.QuickTips.init () when the page is loaded, and the prompt box is displayed correctly.
Using regular expressions in C #, the first step is to introduce the using System.Text.RegularExpressions namespace, which includes the following eight classes:The Regex-----contains regular expressions and methods that use regular expressionsThe
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
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
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