Qt standard dialog box: 8 large dialog boxes in detail
1. Color selection dialog
The color dialog class QColorDialog provides a dialog widget that can get a dialog of a specified color:
//add header file
#include <QColorDialog>
//The three parameters of getColor are: set the initial color, parent window, and dialog box title
QColor color = QColorDialog::getColor(Qt::red, this, "Color dialo ...
Posted by dyconsulting on Sat, 28 Jan 2023 23:01:08 +0300
How to play Paddle with multiple cards? (not Fleet version)
I have always wanted to use Paddle to run multiple cards on a single machine, but I am usually too timid to try it. Today I will play through a few demo s♂ The environment is the four-card environment of aistudio, four V100s, and Fleet is not used at the same time
1. distributed startup
two conditions are required
One is to specify python -m ...
Posted by andco on Sat, 28 Jan 2023 00:28:57 +0300
Self-made DAPLink based on ARM official source code and STM32F103C8T6
[This article was published at https://blog.csdn.net/Stack_/article/details/128771308, reprinting without permission is prohibited, and the source must be indicated when reprinting]
1. Install tools and configure environment variables
1,python3
[Official website] [netdisc] Link: https://pan.baidu.com/s/1zW_H_eQlkzX3FkXuClFnTA Extraction ...
Posted by Tonka1979 on Fri, 27 Jan 2023 23:32:31 +0300
Learning nodejs, this article is enough
concept
Before learning nodejs, it is known that js is a client-side language and a scripting language, that is to say, it can only run on the browser, and it can only run on HTML.
In order to improve the quality of js and allow js to run without browsers and HTML, in 2009, the great god Ryan Dahl separated the V8 engine in Google Chrome ...
Posted by mister_t101 on Fri, 27 Jan 2023 20:41:30 +0300
Commonly used tools and methods in Java
1. Java comes with tools and methods
1.1 The List collection is spliced into a comma-separated string
// How to concatenate the list collection into a comma-separated string a,b,c
List<String> list = Arrays.asList("a", "b", "c");
// The first method, you can use stream flow
String join = list.stream().collect(Collectors.joining( ...
Posted by SZero on Fri, 27 Jan 2023 15:12:36 +0300
Perceptron Statistical Learning Method Chapter 2, numpy primitive form and dual form, torch implementation
Perceptron Perceporn
Theory "Statistical Learning Methods" Chapter 2 Perceptron
Code numpy version && torch version
Python3.7
%matplotlib inline
Model
The linear classification model of binary classification aims to find a hyperplane to linearly divide all instances into positive examples and negative examples, a ...
Posted by dbrown on Fri, 27 Jan 2023 14:27:42 +0300
Pinia state management
1. Comparison between Pinia and Vuex
1.1. What is Pinia?
Pinia (pronounced /piːnjʌ/, like "peenya" in English) is the closest word to piña (pineapple in Spanish);
Pinia started around 2019, initially as an experiment to redesign state management for Vue so that it works like a Composition API.From then to now, the original d ...
Posted by bhonan on Fri, 27 Jan 2023 05:48:29 +0300
Single Cell Series Tutorial: Quality Control in Practice
1. Learning ObjectivesBuild quality control metrics and assess data qualityAppropriately apply filters to remove low-quality cells2. Filter targetFilter data to include only high-quality true cells to make it easier to identify different cell types when clustering cellsCheck the data of some unqualified samples and try to find out the reasons f ...
Posted by jfourman on Thu, 26 Jan 2023 04:41:56 +0300
Eulerian sieve, Euler sieve (number theory)
Echelon sieve / Euler sieve for prime numbers
At the beginning of the beginning, I recommend two videos, uh, my introductory video (let others go elsewhere for the crumbs (bushi) before I start talking)
Little broken station (well, this teacher is very vivid)
Small broken station (actually I am a fan of this teacher...)
Now if you give us a ...
Posted by Eddie Fisher on Wed, 25 Jan 2023 19:41:19 +0300
Use Canvas to draw dynamic starry sky
1. Introduction to Canvas
Canvas API (canvas) is a new tag in HTML5 for real-time generation of images on web pages, and can manipulate image content, basically it is a bitmap (bitmap) that can be manipulated by JavaScript. The Canvas object represents an HTML canvas element <canvas>. It has no behavior of its own, but defines an API to ...
Posted by dhie on Wed, 25 Jan 2023 11:27:19 +0300