Getting Started with Embedded Systems
Board Setup & Configuration
Programming Tutorials (C, Python, Rust)
Debugging & Performance Optimization
Support Vector Machine (SVM) is a supervised learning algorithm based on statistical learning theory. Its core objective is to find an optimal hyperplane in the feature space to maximize the separation between different classes of samples. This optimality is reflected in maximizing the margin, which is the distance from the support vectors (the closest sample … Read more
1. Introduction: Why Scrape Douban Books Top 250? In the age of information explosion, data is like a mine filled with countless treasures waiting for us to excavate. For those who love reading and data analysis, the Douban Books Top 250 list is undoubtedly a shining gold mine. As a highly influential cultural community in … Read more
Title: Write a function reverse_string(s: str) -> str to implement string reversal. Requirements: You cannot use the built-in reversed() function or slicing [::-1] (but you can use them to verify the result). Try to implement it using at least two different methods (for example, using loops, using the stack concept, etc.).. Hint: Method 1 (Loop): … Read more
1. File and Directory Operations Command Function Common Parameters Example <span>ls</span> List directory contents <span>-l</span>(detailed) <span>-a</span>(hidden files) <span>-h</span>(human-readable sizes) <span>ls -lah /home</span> <span>cd</span> Change directory <span>..</span>(parent directory) <span>~</span>(home directory) <span>cd ~/Documents</span> <span>pwd</span> Display current path – <span>pwd</span> <span>mkdir</span> Create directory <span>-p</span>(create parent directories) <span>mkdir -p project/{src,doc}</span> <span>cp</span> Copy files/directories <span>-r</span>(recursive) <span>-v</span>(verbose) <span>cp -rv data/ backup/</span> … Read more
11. Question:_____ distribution is known for its advanced package management system “pacman”. Option 1: Arch Option 2: Fedora Option 3: CentOS Option 4: Ubuntu Correct Answer: 1 Explanation: The Arch distribution is known for its advanced package management system “pacman”. Arch Linux uses a rolling release model and the pacman package manager to install, update, … Read more
This section shares tutorials on commands in the Linux system, which are crucial for front-end developers, back-end developers, and operations personnel. Nowadays, both front-end pages and back-end projects are primarily deployed on Linux servers. If you want to deploy your own service applications, mastering the usage of Linux commands is essential, so this section will … Read more
Cybersecurity Awareness Week From September 15 to 21, 2025, it is the National Cybersecurity Awareness Week. The theme is “Cybersecurity for the People, Cybersecurity by the People”. The cyberspace has long been deeply integrated into our daily work and life, but its security risks are everywhere. A careless click or a simple password can pose … Read more
Today is Wednesday, and the week is halfway through. Happy Wednesday, everyone. In the previous article (【Detailed Explanation of the Camera Body】Revisiting Sensors: Native ISO and Extended ISO), we discussed the concepts of native ISO and extended ISO. It was mentioned that ISO affects dynamic range. Today, we will briefly explain this issue. 01 The … Read more
A solar sensor is placed in the solar water tank to detect the water temperature and water level, and transmits signals such as water temperature and water level to the meter, which then displays the temperature, water level, and controls the water replenishment device. Common sensors on the market include the following types: Huangming solar … Read more
