Exception Handling

Introduction to Python: Mastering Programming Basics from Scratch

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Introduction to Python: Mastering Programming Basics from Scratch

🐍 Introduction to Python: Mastering Programming Basics from Scratch 🌟 Chapter 1: Introduction to Python Python is a object-oriented, interpreted high-level programming language with the following core advantages: • Concise and elegant syntax design • Powerful standard library and third-party ecosystem • Cross-platform compatibility (Windows/macOS/Linux) • Active developer community support 🛠️ Chapter 2: Environment Installation … Read more

Summary of Basic Knowledge for Python Beginners

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Summary of Basic Knowledge for Python Beginners

0. Prerequisites 1. Common Data Types NOTICE 1.1 Numerical Operations NOTICE 1.2 Strings 1.3 Indexing and Slicing 1.4 Lists 1.5 Tuples 1.6 Dictionaries 1.7 Sets 2. Control Flow 2.1 if 2.2 while 2.3 for with range/zip/enumerate 3. Functions 4. Input and Output (Standard Input and Output) 5. File Operations 6. Packages 7. Classes 8. Exception … Read more

Safety Hazards in Industrial Control Systems: Common Logic Vulnerabilities in PLC Programs and Security Reinforcement Measures

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Safety Hazards in Industrial Control Systems: Common Logic Vulnerabilities in PLC Programs and Security Reinforcement Measures

The safety issues in industrial control systems should not be underestimated. In my over ten years of maintenance experience with industrial control systems, I have found that many factory PLC programs have security vulnerabilities. These seemingly minor flaws can lead to equipment damage, production interruptions, and even safety accidents. Today, I will share common logic … Read more

Scenarios and Solutions for Memory Leaks in C++ Embedded Development

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Scenarios and Solutions for Memory Leaks in C++ Embedded Development

Click the aboveblue text to follow us Memory leaks are a serious issue in embedded system development, especially in resource-constrained environments. Unlike desktop applications, embedded systems often have strict memory limitations, where even small memory leaks can quickly lead to system crashes or functional anomalies. A memory leak refers to a situation where a program … Read more

Best Practices for C++ Exception Handling in Excel Data Import and Export

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Best Practices for C++ Exception Handling in Excel Data Import and Export

Hello everyone! Today we will discuss how to effectively use C++ exception handling in Excel data processing. 1. Why is Exception Handling Necessary? Imagine you are importing a 500MB Excel file and suddenly discover that the file is corrupted—an application without exception handling would crash directly, while one with exception handling can gracefully inform the … Read more

Automation Solutions for Food Processing: Practical Applications of Allen-Bradley PLC

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Automation Solutions for Food Processing: Practical Applications of Allen-Bradley PLC

Automation Solutions for Food Processing: Practical Applications of Allen-Bradley PLC Introduction Hello everyone, I am your old friend Lei, and I have been engaged in the industrial automation field for 15 years, mainly focusing on the design and implementation of automation solutions in the food processing industry. Over the years, I have witnessed the automation … Read more

Getting Started with Python: Don’t Let These Pitfalls Delay Your Programming Journey

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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

Core Knowledge Points in C++ Programming

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Core Knowledge Points in C++ Programming

Respect Function Interfaces and Minimize Internal Modifications C++ Code Statements are divided into: built-in types, names, variables, operators, scalars, strings, preprocessor directives (such as #include), etc.Classes in C++ are defined to organize data structuresThe header files of the standard library are enclosed in angle brackets < >, while non-standard library header files are enclosed in … Read more

9 Things I Regret Not Knowing About Python Exceptions Sooner

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9 Things I Regret Not Knowing About Python Exceptions Sooner

1) Exception Hierarchy Python has many built-in exceptions that we may encounter from time to time, such as ZeroDivisionError, KeyError, ValueError, TypeError, and so on. Each exception is part of an exception hierarchy — this means that most exceptions inherit from the same parent class Exception in some way. We can see this by printing … Read more

Avoid Python Advanced Pitfalls to Improve Your Skills

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Avoid Python Advanced Pitfalls to Improve Your Skills

These experiences may help you avoid some debugging pitfalls. Trap 1: Memory Management Issues in Python Python is a programming language that can automatically manage memory, making programming more convenient. Most of the time, Python’s memory management works excellently. However, sometimes Python needs to better understand the actual situation of the program to manage memory … Read more