Python

Recently in the reptile section of learning Python. See a netizen in sharing the use of crawler crawling all kinds of Web site's code, also want to write a play. Today took the time to analyze the structure of the sister map and HTML code, using

When you encounter a programming problem, you must first think of simplifying it, simplifying it to a simple problem, writing the simplest code to solve it, and paying only the simplest test cost.Simple HTML Source:1 23Extract the comments from the

Python is a scripting language, and I also uh, but the real system of contact learning was at the end of last year (2013) to the beginning of this year (2014). I have to say that Python's official documentation is quite complete, assuming that you

Python 2.6 New multiprocessing, that is, multi-process, to the sub-process code debugging a bit difficult, such as Python's own PDB if you start directly in the child Process code will throw a bunch of exceptions, because the child process stdin/out/

Http://www.cnblogs.com/huxi/archive/2010/12/05/1897271.html1. Introduction to character encoding 1.1. AsciiASCII(American Standard Code for Information Interchange) is a single-byte encoding. The computer world begins with English, whereas a single

The implementation of the K-means clustering algorithm in "machine learning combat" by PythonThe most recent project is about "circuit failure analysis based on data mining", the project is basically what the seniors are doing, I'm just studying the

What is JSON:JSON (JavaScript Object Notation) is a lightweight data interchange format. Easy for people to read and write. It is also easy for machine parsing and generation. It is based on JavaScript programming Language, Standard ECMA-262 a

The Python manual has an example for outputting a Fibonacci sequence within 10. The code is as follows:1 A, b = 0, 12 while B :3 print(b)4 C10/>a, B = B, a+bSome Python features are used.After the study explainedThe first line, a, B = 0, and 1

First,strip function prototypedeclaration:S is a string,rm is a sequence of characters to be deletedS.strip (RM) Remove The characters from the beginning and end of the S string in the RM delete sequenceS.lstrip (rm) Delete The character in the S

Tagged with: trace attributionNeither Windows nor Linux system Traceroute commands can show attribution, and in actual network maintenance, the attribution addresses of these trace routes are also important information to help us locate where the

Before you write it.Since last year, I began to focus on Python software, interrupted and learned some things about python on the way, feeling that Python is really a simple and graceful, easy-to-Learn scripting language, many third-party libraries

Reference blog:Http://www.cnblogs.com/vamei/archive/2012/09/05/2671198.htmlHttp://www.cnblogs.com/baiqi/p/3951506.htmlHttp://www.cnblogs.com/sunnyjiangjie/p/4207063.htmlReference: Python 2.7.7 DocumentationReference tool:

Python socket TCP Server and client demoAuthor: VpoetDate: SummerServer#-*-coding:cp936-*-"Creates a Python server that listens on the specified port and, if the port is accessed remotely, gets a remote connection, receives the data, and makes the

Scenario Description:　Prompt when installing Python2.7 numpy expansion pack in Windows environment:error:unable to find Vcvarsall.bat　　After unremitting google/bing, it is found that this is not only the case when installing numpy, but this can also

Python Basicspython Language Web development Framework web2pyCreate a project:650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/6E/B3/wKiom1WDAWrRgyGIAAErQBwh84g410.jpg "title=" Qq20150619012934.jpg "alt=" Wkiom1wdawrrgygiaaerqbwh84g410.jpg

The usage of the threading module for Thread Programming in Python, pythonthreading Threading. Thread Thread is one of the most important classes in the threading module and can be used to create threads. There are two ways to create a Thread: one

Commonly used datetime time processing method in Python, pythondatetime Common time conversion and processing functions: Import datetime # obtain the current time d1 = datetime. datetime. now () print d1 # The current time plus half an hour d2 = d1 +

Machine Learning 4, machine learning Probability-based classification method: Naive BayesBayesian decision theory Naive Bayes is a part of Bayesian decision-making theory. Therefore, before explaining Naive Bayes, let's take a quick look at Bayesian

Learn Python decorators in Step 9 and python Decoration in Step 9 This example describes the Python decorator. Share it with you for your reference. The specific analysis is as follows: This is the content introduced in the Python Learning Group. It

The Lead Game Add problem to Todo list Problem code: TLG, todotlg 1 ''' def count_lead (first, second): 2 if first> second: 3 return 1, first-second 4 elif first = second: # The case 5 return 0, 0 6 else: 7 return 2, second-first '''8 9 10 def main