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
In Python, a list is a built-in data type used to store an ordered, mutable collection of elements. Lists are very flexible and can store any type of object, allowing for a mix of multiple data types, and the number of elements can be increased or decreased at any time. 1. Defining and Creating Lists … Read more
Data types can be simple or complex, and many engineers have encountered issues due to data type mishaps, which is countless. Today, I want to casually discuss this topic, especially since I recently encountered a novice who didn’t understand the difference between INT and DINT, which made me so frustrated that I snatched the keyboard … Read more
Click the blue text for more exciting information Having been in this industry for over a decade, I must say, I get really frustrated when I see new electrical engineers designing PLC systems. Especially when it comes to data types, many have no concept at all, just copying a few lines of code from the … Read more
Fundamentals of PLC Programming: A Beginner’s Guide to Data Types Author: Electric Guy | 15+ years of frontline engineering experience I’ve been asked a lot of questions about PLC data types by beginners, it’s really frustrating! Honestly, isn’t this just the most basic thing? Today’s electrical novices are really falling behind, they can’t even distinguish … Read more
The core functionality of NumPy (Numerical Python) is specifically designed to handle multidimensional arrays, but its capabilities extend far beyond that. As the foundational library for scientific computing in Python, it centers around N-dimensional arrays (ndarray), deriving a full range of functionalities covering mathematical operations, linear algebra, data preprocessing, and more. 1. ndarray: NumPy’s Exclusive … Read more
Course Introduction Welcome to the world of algorithm competitions! This course will guide you through the basics of C++ syntax, laying a solid foundation for subsequent algorithm problem-solving. Basic Structure of a C++ Program Example of a standard program framework: #include <iostream> // Input-output stream header file using namespace std; // Namespace declaration int main() … Read more
Comprehensive Guide to C Language Unions: Differences Between Unions and Structures In the C language, a union and a structure are two important data types used to store different types of data. This article will detail their basic concepts, usage, and explain the differences between them. 1. Structure (Struct) 1. What is a Structure? A … Read more
Hello everyone, I am Xiaokang. Today, let’s talk about a lighter topic: implicit type conversion in C. Have you ever experienced this: the code looks fine, the compilation goes smoothly, but it runs into inexplicable errors? After some debugging, you find out it was a “small data type” issue? Congratulations, you are now part of … Read more
Click 👆 above to follow Engineer Yan Ji and ★star★. Protocol Definition 1. Modbus is a request-response protocol implemented using a master-slave relationship. 2. The Modbus protocol introduces different application data units to change the packet format used in serial communication or to allow the use of TCP/IP and User Datagram Protocol (UDP) networks. Its … Read more