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I've written about using single thread to build proxy ip pools before, but you will soon find that it's too slow to test proxy IPS one by one with single thread. It takes a long time to finish running once and it's totally unbearable. So this article is to use multithreading to build the ip pool, which is much faster than using single thread. T ...

First: Five basic algorithmic questions 1. Armstrong Number If an n-bit positive integer equals the sum of the n-th power of its digits, it is called an Armstrong number. Determine whether the number entered by the user is Armstrong. (1) Topic analysis: Here we need to first get the number of digits, and then cut out the number of each digit ...

It is not difficult to climb the barrage of station b. To get all of the up master video curtains, we first go to the up master video page, that is, the up master video page. https://space.bilibili.com/id/video This page. Press F12 to open the developer menu and refresh it. There is a getSubmitVideo file in the xhr file of the network. This fil ...

Links to the original text: https://www.jianshu.com/u/8f2987e2f9fb Below are some libraries written by Python for parsing and manipulating special text formats, hoping to help you. 01.Tablib https://www.oschina.net/p/Tablib Tablib is a Pytho ...

I. Operating System Operating system is a system program used to coordinate, manage and control computer hardware and software resources. It is located between hardware and application. Programs are software running on the system with certain functions, such as browsers, music players and so on. The definition of the operating system's kernel: ...

Preface Recently, when Baidu wants to learn Spark's newer Structured Streaming, all of them are monotonous wordcount s, which are quite speechless.You have to figure out for yourself what you can do with the Select and Filter operations of the Dataframe.Because of using Python, using Pandas, and trying to turn Pandas to process, readStream doe ...

Catalog Writing assertions Writing assertions using assert Write assertions that trigger expected exceptions Optimization of special data structure comparison Add custom instructions for failed assertions Details of assertion introspection Overwrite Cache Files To be able to assert se ...

## Statement: Individual learning arrangement, for reference only Basic grammar Note: Identify "#", triple double quotation mark ", comment content". Line and indentation: Statements with four spaces hanging indentat ...

Links to the original text: https://blog.csdn.net/jiutianhe/article/details/39896931 <link href="https://csdnimg.cn/public/favicon.ico" rel="SHORTCUT ICON"> <title>Image similarity algorithm--SIFT Algorithm details - jiutianhe Co ...

Catalog Use and invocation Call pytest through python-m pytest The status code returned at the end of pytest execution Get help information Maximum number of test cases allowed to fail Execute the specified test case Execute test cases in the specified module: Execute test cases in th ...