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1. Scrapy Crawler Framework 1. Scrapy is not a function library, but a crawler framework A crawler framework is a collection of software structures and functional components that implement the crawler function The crawler framework is a semi-finished product that helps users achieve professional web crawling 2.'5+2'structure (1) Engine (no use ...

Python crawler (15) Learning Python crawler experience in the process and knowledge point arrangement, convenient for my own search, also hope to be able to communicate with you. ——Thread library practice continuous output and fast scan port—— Article directory Python craw ...

Preface Recently, due to the needs of the project, the project needs to realize the function of websh connecting the terminal. Because of the first time to do this type of function, I first went to GitHub to find out if there is any ready-made wheel that can be used directly. At that time, I saw many projects in this area, such as GateOne, webs ...

Introduction: There are two kinds of comparison algorithms, one is comparison algorithm, the other is non comparison algorithm. Comparison algorithms are: bubble sort, select sort, insert sort, merge sort, heap sort, fast sort, Hill sort. Non comparison algorithms are: count sort, cardinality sort, bucket sort. https://gitee.com/linqiank ...

Android system test, Before starting the test, we need to confirm whether the tested system version is correct, When reporting bug s, you need to provide specific system version information for development. And the system printing time, Different versions fix different bug s and incorporate different new functions, If the system version tested ...

1. Independent file name management of os.path platform It is easy to write code to deal with files on multiple platforms by using the functions contained in the os.path module. Even if the program does not intend to migrate between platforms, os.path should be used to complete reliable file name resolution. 1.1 resolution path The first set of ...

I created a new local Git Repository: ~$ mkdir projectname ~$ cd projectname ~$ git init ~$ touch file1 ~$ git add file1 ~$ git commit -m 'first commit' Is there any git command to create a new remote warehouse and push my submission to GitHub from there? I know to launch the browser and turn to Create a new repository It's no big deal, b ...

1. Hill sorting 1.1 problems in simple insertion sorting Let's look at the possible problems with simple insertion sorting Array arr = {2,3,4,5,6,1} at this time, the number 1 to be inserted (minimum) is as follows: {2,3,4,5,6,6} {2,3,4,5,5,6} {2,3,4,4,5,6} {2,3,3,4,5,6} {2,2,3,4,5,6} {1,2,3,4,5,6} ...

The following article is from universal repair laboratory, Mr. Gong In January 2020, in addition to the coronavirus whose source information is like a mystery story, MySQL officially released a new version of 8.0.19, and the biggest highlight is the ReplicaSet function. InnoDBReplicaSet consists of a primary database and multiple secondary da ...

brief introduction Shell's sort is Insertion sort One of them, also known as "reducing increment sort", is a more efficient version of the direct insertion sort algorithm. Hill sort is an unstable sort algorithm. This method was named after D.L.Shell in 1959. Excerpts from: Baidu Encyclopedia Code algorithm analysis private static fin ...