python backslash

string (). REs is processed as a string because the regular expression is not the core part of the Python language and does not create a specific syntax for it. Applications do not need REs at all, so there is no need to include them to make language descriptions bloated .) The re module is only included by Python in the form of a C extension module, just like the socket or zlib module. Use REs as a string

. Generally, if double quotation marks appear in a string, they are represented by single quotation marks. String; otherwise, double quotation marks are used. If none of them appear, you can choose according to your personal preferences. The \ (backslash) in the string is interpreted as a special character. For example, \ n indicates a line break. Add r before the expression to indicate that Python does not

Simple Getting Started Guide for Python program extension using C language, python I. Introduction Python is a powerful high-level scripting language. It is powerful not only in its own functions, but also in its excellent scalability, python has been favored by more and more people and has been successfully applied to

Example of Python metacharacters usage parsing and python usage examples The role of the backslash: To process a metacharacter ^ as a common character, add a backslash For example: >>>import re>>>r=r'\^abc'>>>re.findall(r,'^abc ^abc ^abc')['^abc','^abc','^abc'] \ D matches any decimal number, which is equivalent to the

The best of python (1) -- getting started with python, the best of python 1. Introduction to Python Python is an interpreted, object-oriented, and dynamic data type high-level programming language. Python was invented by Guido va

Python learning notes (8) Python list (2), python learning notes List Functions Append and expand List. append () append a new object to the end of the list. 1 >>> dir (list) # list functions 2 ['_ add _', '_ class _', '_ contains __', '_ delattr _', '_ delitem _', '_ delslice _', '_ doc _', '_ eq __', '_ format _', '_ ge _', '_ getattribute _', '_ getitem _', '_

Familiar with Python, using Python computing, and learning python computing When it comes to computers, of course more people now call her computers. Both of them refer to computers. Whatever it is, as long as she is mentioned, it is common to think that she can quickly perform addition, subtraction, multiplication, division, and even the square. Even some people

Python growth path Article 3 (2) _ regular expressions, the path to python GrowthAdd an advertisement. Welcome to linux. python Resource Sharing Group No.: 478616847. directory: 1. What is a regular expression? introduction to regular expressions in python2. re Module Content3. Small exercises1. What is a regular expression (re) Many people are familiar with regu

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