regular expression
Regular expression application scenarios Judge whether a string conforms to the ruleTake out the development dataCore technology of crawler postLottery website matches lottery information Regular expression module -- re Match only once import re str_data = 'hello, this is a good day' result = UTF-8...
Posted by void_function on Tue, 08 Jun 2021 03:16:01 +0930
Introduction to Python regular expressions
preface In daily life, when visiting a new website, only registered website users can log in. When a user fills in the registration information, they usually need to fill in the mobile phone number, e-mail and other information. In the process of filling in the information, the website will veUTF-8...
Posted by screamer141 on Mon, 21 Jun 2021 03:24:43 +0930
Python regular expressions
Python regular expressions re module makes Python language have all regular expression functions re.match function re.match attempts to match a pattern from the start of the string. If the match is not successful, match() returns none. re.match(pattern, string, flags=0) parameterdescribepatterUTF-8...
Posted by shefali on Thu, 24 Jun 2021 05:30:47 +0930
regular expression
regular expression 1 regular expression syntax Note: the following examples are for the Java language Regular character matching SymbolmeaningExamplesexplainMatch input[]List of acceptable characters[efgh]e. Any one of f, g, h[^]List of unacceptable characters[^abc]Any character except a, b andUTF-8...
Posted by dustinkrysak on Tue, 29 Jun 2021 08:24:37 +0930
python crawler -- crawling biquge novel (novice)
python crawler_ Crawling the novel of interesting Pavilion (novice) This paper is based on the library of requests, re and beautiful soup, taking Yinian eternal as an example... Steps: 1.Get a link to the novel 2.Analysis of website structure 3.Get links to the chapters of the novel 4.Get detaiUTF-8...
Posted by isaac_cm on Tue, 20 Jul 2021 04:04:34 +0930
Calculation expression results with JAVA code
preface The problem of calculating expression results has been a problem that puzzles me for a long time. I accidentally saw a method of using recursion to solve this kind of problem some time ago. I want to share it with you.Before you understand this method, you can forget all kinds of complUTF-8...
Posted by ziltech on Thu, 22 Jul 2021 09:30:45 +0930
Regular expressions in Python
regular expression Regular expression is a special character sequence, which can help you easily check whether a string matches a pattern. Python uses the re module to provide regular expression functionality, which provides Perl style regular expression patterns. (match once) re.match() functiUTF-8...
Posted by VirtualOdin on Sat, 31 Jul 2021 02:39:07 +0930
Multiple matching patterns of Pattern -- JAVA programming ideas 42
The Pattern.complie(String regex) method can be used to generate the Matcher class, but it also has an overloaded Pattern.complie(String regex,int flag) method that can be used to specify various matching patterns. Today, let's learn several different matching patterns of Pattern class: PatternUTF-8...
Posted by frabble on Sun, 01 Aug 2021 09:25:43 +0930
ES6 object extension, concise representation of attributes, enumerability and traversal of attributes (traversal order), super keyword, object extension operator
ES6 (IX) object extension, concise representation of attributes, enumerability and traversal of attributes (traversal order), super keyword, object extension operator Object is the most important data structure in JavaScript. ES6 has significantly upgraded it. This chapter introduces the changeUTF-8...
Posted by brunosdiniz on Wed, 04 Aug 2021 05:14:18 +0930
regular expression
regular expression 1. General (1) Regular Expression: (Regular Expression) an expression used to match rules. Regular Expression was originally the early research of scientists on the working principle of human nervous system, and now it is widely used in programming languages. (2) Regular tablUTF-8...
Posted by renj0806 on Sat, 07 Aug 2021 10:29:41 +0930