Solution to “Python3.12pip network installation library file error, ssl module is unavailable” 1. Install the new version of openssl3.1.4 2. Install Python3.12.0 The Python version needs to match the openssl version. In versions after Python 3.7, the dependent openssl must be a version after 1.1.1 or 1.0.2, and the openssl1.0.2k installed in CentOS7 cannot meet […]
Tag: nav
Navicat use–mysql
Table relationship Database operations and table field design are generally completed through the graphical interface tool Navicat. The addition, deletion, modification and query of data in the table require familiarity with SQL statements. One-on-one One-to-one: An A corresponds to a B, and a B corresponds to an A. Set the primary key of any table […]
React technical principles and code development practice: navigation and routing in React Native
Author: Zen and the Art of Computer Programming 1. Background Introduction In React Native applications, navigation is the main way to switch between different views of the user interface. The core idea is to use the stack data structure to combine different components to achieve smooth transition between pages. In React Native, the Navigator component […]
Express framework development interface front-end classification navigation
1.Initialization const handleDB = require(‘../handleDB/index’) // Get all navigation exports.allNav =async (req, res) => { } //Update or add navigation exports.upNav =async (req, res) => { } //Delete based on id exports.delNav = async(req, res) => { } 2. Database design aynsc turns the function into an asynchronous function and uses it with await, using […]
VS Code code navigation and code editing for Java development
Quick Navigation VS Code provides some features for quick navigation when developing in Java. Code Navigation Outline view: Easily navigate members in the current file Projects view: Detailed overview of projects Java Editor: Supports call hierarchy, type hierarchy, definition navigation, search types in workspace, etc. Search functionality (# and @) Search allows you to quickly […]
Navigation of the Soul: Navigating the Troubles in Life from a Psychological Perspective
1. Introduction Life is full of all kinds of challenges and pressures. From work, study to interpersonal relationships, each of us will inevitably encounter annoying things. These worries may affect our mood, health, and even the quality of our entire lives. Therefore, it is particularly important to learn how to effectively regulate and deal with […]
Write navigation2 controller plug-in
Introduction This tutorial shows how to create your own controller plugin. In this tutorial, we will implement a pure path tracking algorithm based on this paper. It is recommended that you read the paper. Note: This tutorial is based on a simplified version of the Regulated Pure Pursuit controller that previously existed in the Nav2 […]
Vue Routing Guide: A map for navigating single-page applications (Vue Router and <router-view>)
Front-end development engineer (main job), technical blogger (side job), passed CET6 Ashan and her cat_CSDN personal homepage Senior topic writer at Niuke, creating a high-quality column “Essentials for Front-end Interviews” at Niuke The contracted author of Lanqiao Cloud Class, the front-end and back-end practical courses “Vue.js and Egg.js Develop Enterprise-level Health Management Projects” and “Take […]
Integration of trilateration and satellite navigation (matlab code)
1. Preface Trilateration is a common positioning method that determines the location of a target by measuring the distance or angle between three reference points and the target to be located [1]. This method can be used in scenarios such as radio navigation and WLAN positioning. Radio navigation determines location by measuring the propagation time […]
ROS independent mapping navigation car project practice
Basic tutorial link: Introduction · Autolabor-ROS Robot Introductory Course “ROS Theory and Practice” Zero Basic Tutorialhttp://www.autolabor.com.cn/book/ ROSTutorials/ 1: Robot platform design The main components of the robot include: Actuator: The main body is assembled from acrylic plates. Two DC motors drive the driving wheels and two universal wheels that maintain balance to achieve robot walking. […]