Programmer Group

DirectX 12 is Microsoft's latest graphics API library, which is only supported on Win10 system (if it is not Win10, it must be upgraded to Win10). My biggest feeling about this API is that it is particularly complex, because it exposes many underlying methods. Even though I have learned DX9, I still ...

  1, Download Interface   1. Main interface download display MainWindow first initializes aria and starts aria2. The startup method is in download.py.  # start aria2         start_aria = StartAria2Thread()         self.threadPool.append(start_aria)         self.threadPool[0].start()         sel ...

Target website: https://www.mn52.com/ The code of this article has been uploaded to git and Baidu. The link is shared at the end of the article Website overview     Target, grab all the pictures using the graph framework and save them locally. 1. Create a sketch project scrapy startproject images 2. Create a spider cd images scrapy genspide ...

Catalog 1. PIL-Python image library 1.1 image gray processing code implementation Operation result 1.2 adjustment of dimensions and rotation code implementation Operation result 2. Matplotlib Library 2.1 drawing, tracing points and lines code implementation Operation result 2.2 image outline ...

Catalog Pool technology -- custom thread pool 1. Why use thread pools? 1.1 characteristics of pool technology: 1.2 benefits of thread pool: 1.3 how to customize a thread pool 2. Three methods 2.1. Thread pool method of single thread 2.2. Fixed thread pool size method 2.3 me ...

Ethereum is a public blockchain platform that provides a smart contract function. To develop an application on Ethereum, you need to install Geth based on Go language on its client. The official website is: https://github.com/ethereum/go-ethereum. 1. Enter the command line window 2. Enter in the command line window geth --datadir "E:\geth ...

1. Definition of string: A finite sequence of zero or more characters, also known as a string Empty string without characters A string with only spaces is called a space string 2. Abstract data type of string: ADT String ( string) Data //The element of a string consists of only one character, and the ...

Pyqt5 learning path, click to have pyqt5 learning notes QWidget class is the base class of all user interface objects. All windows and spaces are directly or indirectly inherited from QWidget The window control (Widget) is the main element to build the interface in PyQt. Window coordinate system PyQ ...

Using Python requests library to crawl educational administration system When I was a sophomore, I felt that the school's educational administration system was particularly backward. It was very troublesome to use the functions of score query and schedule check. At that time, the official account of t ...

menu menus and windows System menu OptionsMenu Code display Effect display Matters needing attention Context menucontextmenu Code display Effect display Matters needing attention Pop-up Menu Code display Effect display PopupWindow window Code display Effect display Matters needing attention ...