Python Command Line Travel - Deep into argparse

Author: Hello GitHub-Prodesire Hello GitHub's "Explaining Open Source Projects" series, project address: https://github.com/HelloGitHu... Preface In the first article "A Preliminary Exploration of argparse", we have a preliminary grasp of the use of argparse's tetralogy, which has a basic sense of body.But what types of par ...

Posted by aaaaCHoooo on Tue, 20 Aug 2019 01:08:04 -0700

HDU 6681 Dendritic Array Euler Formula

To give a rectangular pin, a k-knife, each of which is a ray with non-coincident vertices and parallel axes in the cake, ask to cut the pin into several pieces. Euler's formula: V_E+F=2V-E+F=2V_E+F=2 points_edges+polygons=2 points-edges+polygons=2 po ...

Posted by deffe on Mon, 19 Aug 2019 20:04:20 -0700

Java implements maximum (small) heap and heap sorting, TopN problems

Java implements maximum (small) heap and heap sorting, TopN problems Articles Catalogue Java implements maximum (small) heap and heap sorting, TopN problems Java implementation heap Reactor Construction Insertion of heap Heap deletion Specific ...

Posted by perezf on Mon, 19 Aug 2019 05:00:41 -0700

Has the thread pool been used?

Has the thread pool been used? Thread pool advantage The main task of thread pool is to control the number of running threads, put tasks into the queue in the process of processing, and then start these tasks after thread creation. If the number ...

Posted by Niyati_1984 on Mon, 19 Aug 2019 01:28:30 -0700

TensorFlow Learning Records: Activation Functions

The main function of activation function is to add non-linear factors to solve the problem that linear models can not be multi-classified. It plays a very important role in the whole neural network. Because the mathematical basis of the neural networ ...

Posted by AdamSnow on Sun, 18 Aug 2019 22:24:22 -0700

vue development environment based on Web pack 4.x at novice level

Using webpack 4.x to build vue development environment in the initial stage Guide reading First of all, in this chapter, I will take you hand in hand to build a vue development environment using webpack 4.x. Students here may ask? "There ar ...

Posted by tbone-tw on Sun, 18 Aug 2019 21:28:01 -0700

Case 17. Archiving the Old Log

There is log rotate in Linux system. It can cut and archive old logs according to our expectation. It can also compress the cut logs and define the retention time of old logs. The requirement of this case is to use shell script to implement logrotate-like functions. Specific requirements are as follows: 1) The log path to be processed: / data/ ...

Posted by psychosquirrel on Sun, 18 Aug 2019 21:20:54 -0700

Hand tear ThreadPool Executor thread pool source code

This article gives a detailed analysis of how ThreadPool Executor creates thread pools to operate thread lifecycles through source code. By explaining execute method, addWorker method, Worker class, runWorker method, getTask method and processWorkerExit from the source code point of view, there are colored eggs at the end of the article. Exexct ...

Posted by stb74 on Sun, 18 Aug 2019 07:56:52 -0700

Common style collation for bootstrap4

Original Link: https://blog.csdn.net/qq_19636353/article/details/99625792 Common style collation for bootstrap4 BootStrap4.3.1 A picture 1 Introduction of JS <meta name="viewpoint" content="width=device-width,initial-scale=1" /> &l ...

Posted by Oaquasis on Sat, 17 Aug 2019 18:16:26 -0700

Conventional Design and Example of Current Limitation

Current Limiting Algorithms Counter Current Limitation Fixed window sliding window Barrel current limiting Token Bucket Leaky bucket Counter Counter current limiting can be divided into: Fixed window sliding window Fixed window The current limitation of fixed window counter is simple and clear, that is, to limit the number of requests ...

Posted by zurron on Sat, 17 Aug 2019 08:42:10 -0700