Easy Introduction to Python
1. if Statement2. elif Statement3. else StatementThe more clumsy, the harder you work;Follow me, let’s learn Python together
Tutorials & Guides
Getting Started with Embedded Systems
Board Setup & Configuration
Programming Tutorials (C, Python, Rust)
Debugging & Performance Optimization
Getting Started with Python: Don’t Let These Pitfalls Delay Your Programming Journey
Friends, have you watched a bunch of Python tutorials but still can’t write code? Don’t worry, today I will share some practical tips that those tutorials didn’t cover. 1. Understand this first: How does Python actually run code? Many beginners don’t even know how to execute a .py file. Try this: Execution method: Open the … Read more
Easily Eliminate Video Noise with One Click
Tired of annoying noise in your videos? Do you feel that the carefully shot material is negatively affected by buzzing, electrical sounds, or street noise? Don’t worry! Whether you’re a vlogger, content creator, or editing enthusiast, today I’ll teach you how to easily remove video noise using Jianying, instantly purifying your audio and allowing your … Read more
Understanding the Significance of A, B, and C Pillars in Driving Safety
The “point of direction” mentioned by driving instructors is essentially a clever application of the vehicle’s structural features to overcome driving blind spots. As novice drivers progress to practical driving, the A/B/C pillars of the vehicle transform into “mobile coordinates” for safe driving, becoming the ultimate tool for predicting spatial distances. 1. The Blind Spot … Read more
Practical Guide to High-Risk Port Control Strategies and Firewall Configuration in Linux
In today’s rapidly accelerating digital transformation, the Linux operating system, as the mainstream OS for servers and edge computing devices, directly impacts the protection of enterprise data assets and user privacy. This guide will present a practical security hardening solution from the core dimensions of security reinforcement, combined with code examples, focusing on two key … Read more
A 10-Year Operations Veteran’s Linux Command Arsenal
Click the blue “Most Programmer” to follow me! Add a “star“, every day at 18:03 to learn technology together Redirection Standard input stdin: code is 0, use < or <<Standard output stdout: code is 1, use > or >>Standard error output stderr: code is 2, use 2> or 2>>Special syntax: write both stdout and stderr … Read more
Comprehensive Guide to Linux Command Delimiters: A Veteran’s Insights on Command Line Mastery
As a Linux operations engineer, mastering command delimiters is a key skill to enhance work efficiency. This article will detail commonly used command delimiters in the CentOS7 system and their usage techniques, helping you operate the command line with ease. 01 Basic Delimiters Semicolon (;) and Logical AND (&&) 1. Semicolon (;) – Execute sequentially … Read more
Fixing Special Characters in Linux Scripts
The scripts required for this article can be directly copied in the format of this article: train_script.sh #!/bin/bash train=( " ____ " " _|____|____ " " | _________ | " " | _ _ | " " |_| |_| |_| " ) cols=$(tput cols) train_width=0 for line in "${train[@]}"; do (( ${#line} > train_width )) … Read more
Learning Linux with an AI Teaching Assistant
In the past couple of years, I often tell my students that when they encounter difficult problems, they should first consult the silicon-based AI assistant, and if that doesn’t solve the issue, then come to me, the carbon-based teacher. Recently, I developed an AI teaching assistant for learning Linux. After a period of testing, the … Read more
What is the Fastest Way to Create an LVGL Project for a New LCD Screen?
Hello everyone, I am Pi Zi Heng. Today, I will share the steps for quickly creating a new LCD screen example project using NXP’s GUI Guider. In my previous article, “How to Quickly Light Up a New LCD Screen on i.MXRT1170: Methods and Steps,” I introduced how to modify the official SDK bare-metal driver elcdif … Read more