10 recommended courses on Python regular

Source: Internet
Author: User
This article mainly introduced the Python regular crawl NetEase news method, combined with the example form more detailed analysis Python uses the regular to carry on the NetEase news grasping operation the related realization skill and the attention matter, needs the friend can refer to this article The example to describe the python to crawl NetEase news method. Share to everyone for your reference, as follows: I wrote some crawler to crawl NetEase news, found that its web page source code and Web page comments are not on the right, so, the use of the capture tool to get its comments hidden address (each browser has its own grab bag tool, can be used to analyze the site) If you look closely, you will find that there is a special, then this is what you want and then open the link to find the relevant comment content. (for the first page) the next step is the code (also written as rewritten by the great God). #coding =utf-8import urllib2import reimport jsonimport timeclass WY (): 1.

1. About NetEase News article recommendation

Introduction: This article mainly introduced the Python regular crawl NetEase news method, combined with the case form more detailed analysis Python uses the regular to carry on the NetEase news grasping operation the related realization skill and the attention matter, The need for Friends can refer to the example of this article describes the python is the way to crawl NetEase news. Share to everyone for your reference, as follows: I wrote some crawler to crawl NetEase news, found that its web page source code and Web page comment is not on, so, the use of the grab Bag tool to get its comments hidden address (each browser has its own capture tool, ...

2.10 article recommendations on non-greed

Introduction: This article mainly introduced the Python regular expression in the greedy/non-greedy characteristics of the relevant data, the text through the sample code introduced in a very detailed, for everyone has a certain reference value, the need for friends below to see it together. In this article, I'll summarize the greedy/non-greedy nature of regular expressions, which has been briefly introduced to the basics and captures of Python regex expressions.   greed By default, regular expressions are greedy-matched. The so-called "greed", in fact, in a variety of length of the matching string, select the longer one. For example, the following ...

3. A complete guide to python regular expressions

Summary: Regular expression processing text like a blast sweeping the autumn leaves, most programming languages have built-in support for regular expressions, which are used in scenarios such as form validation, text extraction, substitution, and so on. Here's a guide to Python's regular expressions, as you can see from your friends.

4. More detailed Python regular expression Operations Guide

Summary: Python has added the RE module since version 1.5, which provides a Perl-style regular expression pattern. Prior to Python version 1.5, the Emecs style mode was provided through the Regex module. Emacs style mode is less readable and functionally weak, so try not to use the Regex module when writing new code, but occasionally you may find it in the old code.

5. Python's detailed description of the characteristics of regular greed and non-greed

Introduction: This article mainly introduced the Python regular expression in the greedy/non-greedy characteristics of the relevant data, the text through the sample code introduced in a very detailed, for everyone has a certain reference value, the need for friends below to see it together.

6. Regular expression of Python capture Chapter

Introduction: What is Capture? After you use parentheses to specify a subexpression, the text that matches the subexpression (that is, the matching content) can be used in an expression or other procedure, and the following article focuses on the relevant data about the capture in the Python regular expression, which you need to refer to.

7. The regular expression of the basic Python text

Summary: Regular expressions are not part of Python. Regular expressions are powerful tools for working with strings, with their own unique syntax and an independent processing engine, which may not be as efficient as Str's own approach, but very powerful. The following article mainly describes the Python regular expression based on the relevant information, the need for friends can refer to.

8. Share a simple code example of a Python regular

Introduction: This article mainly introduces the Python regular simple example, specifically analyzes the python for the string simple regular matching test encountered problems and related considerations, the need for friends can refer to the following

9. Python code example to crawl NetEase news

Introduction: This article mainly introduced the Python regular crawl NetEase news method, combined with the example form more detailed analysis Python uses the regular to carry on the NetEase news grasping operation the related realization skill and the attention matter, needs the friend can refer to the next

10. Example of seven Python regular expressions use

Summary: As a concept, regular expressions are not unique to Python. However, the regular expressions in Python still have some small differences in the actual usage. This article is a series of Python regular expressions

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