Linux Basic Notes 4 | Essential Basic Commands
Absolute path: take the root directory as a reference, start from the root directory, and enter the directory level by level
Relative path: use the current directory as a reference to search for the directory
1.1 Directory operations
ls
show the contents of the directory
# View the information under the /etc/passwd file/folder
ls -l / ...
Posted by ibanez270dx on Sun, 29 Jan 2023 20:41:10 +0300
Snack mall|Snack mall based on springboot
About the author: a full-stack development project, engaged in the development and research of Java, Python, front-end, and small programs, interested in big data applications and development,
Main content: Java project, front-end project, Python project, small program development, big data project, microcontroller
Favorites, likes, don ...
Posted by georgepapa on Sun, 29 Jan 2023 10:58:03 +0300
Shenyang University of Chemical Technology & Qufu Normal University Joint Monthly Competition in January
A
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A.
A. Come and help Xiaoxin
The meaning of the question is very simple, input two strings, find the second string in the first string, output yes if successful, otherwise output no
But Xiaoxin is sick, he can't distinguish the thr ...
Posted by riddlejk on Sun, 29 Jan 2023 08:52:45 +0300
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