Programmer Think

The Concept of Full Screen Why explain the full screen first, because the word is now a false proposition. Full screen literally means that the front of the mobile phone is all screen, 100% of the screen. But nowadays, none of the manufacturers that launch so-called "full screen" mobile phones can achieve full scale. So ...

The running environment is windows server 2008 64-bit system. Installation directory D:/wnmp Mysql 5.7 Download Address: https://dev.mysql.com/downloads/mysql/5.7.html#downloads (This article chooses 5.7.25 | Microsoft Windows | All | Windows (x86, 64-bit), ZIP Archive) php7.2 Download Address: https://windows.php.net/downloads/releases/php-7. ...

Now that we have some knowledge of UI elements and screens, we need to make them responsive. Response is not just about speed - how much work you can accomplish over time. What's more important is how fast the application is. When people say that the application responds, they usually mean that the application will not prevent ...

1. Prepare: 1.cmake-3.11.1-win64-x64 https://cmake.org/files/v3.11/  2.qt-opensource-windows-x86-msvc2015-5.6.3  3.vs2015  4.opencv-3.4.1-vc14_vc15.exe   https://github.com/opencv/opencv/releases/tag/3.4.1 2. Install software: 1.cmake installation (unzip to use) 2.qt installation, also install WDB http://www.codemac ...

We all use utf8 code in development. Yesterday we encountered a strange pit. It was a small problem and wasted an hour to solve.Don't talk too much. Implant the topic: File download method: download from header binary stream fileRequirement: File upload keeps file name unchangedData field file_url value: /public/upload/files/2019/04-29/Chinese ...

Because of the need of the project, I am looking for some articles about drawing real-time curves recently, but I have seen a lot of my own implementations are too slow, so I use third-party controls to implement them (because it is used in the project, so I prefer to work with open source projects, if something goes wrong, I c ...

Prototype chain The prototype chain is actually a mechanism of inheritance in JavaScript. Before we understand the prototype chain, we should first understand several concepts: this, ordinary object and function object, constructor, new. this This is a confusing concept for many people, but to understand the prototype chain we have to understan ...

Install pygame module Install modules for making games Installation through pip command pip install pygame Game Initialization and Exit Initialization pygame.init() Sign out pygame.quit() Rectangular area object Four Elements of Rectangular Area x coordinates, y coordinates, width, height x,y,width,heigh Descri ...

Infinite polar classification simply means that a class can be divided into several subclasses, and then one subclass can be divided into other subclasses indefinitely, as if windows could create a new folder, then create some folders in this folder, and some folders under the folder. So how does PHP achieve its infinite classif ...

Python A standard module library is attached and described in a separate document Python library reference (hereinafter referred to as "library reference"). Some modules are built into interpreters; they provide access to operations that are not part of the language core but are still built in to improve efficiency or provide access t ...