1. Overview of AWK Basics # Basic Structure awk 'BEGIN{preprocessing} {line processing} END{postprocessing}' filename # Common Variables NR: line number | NF: number of fields | $0: entire line content | $1: first column 2. High-Frequency Practical Scenarios 1. Data Deduplication Example: Retaining Unique Lines # Deduplicate entire lines (keep the first occurrence) awk '!seen[$0]++' … Read more
Introduction In Python programming, <span>lambda</span> functions (also known as anonymous functions) are a concise and powerful tool that allows us to define small, temporary functions in a single line of code. This article will delve into the concept, usage, and practical applications of <span>lambda</span> functions in Python, helping readers master this important knowledge point. What … Read more
In today’s digital age, mastering a programming language is like possessing a magical key that opens the door to the future. Among many programming languages, Python undoubtedly stands out as one of the brightest stars. Its simplicity and powerful functionality make it highly favored. How can we plan an efficient learning path for Python? Let’s … Read more
JZGKCHINAIndustrial Control Technology Sharing Platform With the continuous development of industrial automation and information technology, PLC (Programmable Logic Controller) has become an indispensable key device in the field of industrial automation. As a powerful programming language, Python is increasingly favored by engineers for communication with PLCs. Python excels in scientific computing, data processing, and visualization, … Read more
Project IntroductionProject Name: Batch Filter and Consolidate ‘Wallet’ Sales Records from Excel FilesLibraries Used:os, pandasProject Overview: This example is used to filter rows where the “Product Name” column is “Wallet” from all worksheets of Excel files in a specified folder and its subfolders, and consolidate this data into a new Excel file. Additionally, each qualifying … Read more
Python Workflow Factory: Real-Time Analysis of 120TB Data with Qiskit Last November, I took on a daunting project—building a real-time analysis system capable of handling 120TB of transaction data for a financial institution. To be honest, when I heard that number, I almost spilled my coffee on my laptop.The traditional Python data processing solutions simply … Read more
From Zero to Automation Expert: My 30-Day Journey in Python for Office Automation That afternoon, as I manually copied Excel data to a Word report for the fifteenth time, I suddenly realized how much of my life I was wasting on repetitive tasks. As an ordinary office worker, I used to think that “automation” was … Read more
Analyzing Matrices with Python: Achieving 509 Times Data Processing Throughput with Requests Last year, I did something amusing; I ran a single-threaded crawler for an entire day just to scrape data from a small e-commerce website. My boss saw the progress bar on my desktop and laughed, “At this rate, you’ll be delivering the report … Read more
In this rapidly changing era, the demand in the market surges like a tide, highlighting the importance of programming skills! Among many programming languages, Python has won the hearts of numerous learners due to its wide applicability and ease of use. Python, the “internet celebrity” of the programming world, is simply a savior for beginners … Read more
Let’s illustrate this issue with a specific example. How does a typical task system handle information in embedded systems? The process looks like this: • Retrieve new data • Filter/process data • Output data Pretty straightforward, right? We know that for real-time embedded system design, the main goal is determinism and minimizing jitter. The three … Read more