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