liandk
Author

liandk

Seasoned Java and mobile developer with years of experience, specializing in mini‑programs, public accounts, and full‑stack front‑end development. In the AI era, I continuously learn to broaden my knowledge and evolve. I revived a public account I started a decade ago during a dessert‑startup venture, using code as a vessel and knowledge as a companion. I share personal projects, technical articles, programming tips, and growth insights—let’s improve together and set sail.

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Recent Articles

Latest from liandk

64 recent articles
liandk
liandk
May 13, 2026 · Backend Development

Python Web Scraping Basics: Extract Strings and Intro to Regex in 5 Minutes

This tutorial walks through fixing common requests‑module errors, selecting a reliable PyPI mirror, formatting URLs correctly, and using built‑in string methods and basic regex to reliably extract IP, keyword and request URL data from HTTP responses, with batch examples and a summary of four common pitfalls.

PythonRegexString Extraction
0 likes · 12 min read
Python Web Scraping Basics: Extract Strings and Intro to Regex in 5 Minutes
liandk
liandk
May 13, 2026 · Backend Development

Advanced Requests and Simple Web Scraping in Python: Extract Data in 5 Minutes

This tutorial walks you through installing the requests library from reliable mirrors, setting browser-like headers, extracting JSON or raw text data, handling common errors, and performing batch requests to build a quick, functional web scraper in just five minutes.

Pythonbatch-requestserror handling
0 likes · 11 min read
Advanced Requests and Simple Web Scraping in Python: Extract Data in 5 Minutes
liandk
liandk
May 13, 2026 · Fundamentals

Python Basics – Part 8: Master requests in 5 Minutes to Start Web Scraping

This tutorial walks you through installing the Python requests library, demonstrates basic GET requests, adding query parameters, handling errors with timeout and exceptions, and highlights four common pitfalls with solutions, enabling you to quickly build simple web‑scraping scripts in just five minutes.

HTTPPythonerror handling
0 likes · 8 min read
Python Basics – Part 8: Master requests in 5 Minutes to Start Web Scraping
liandk
liandk
May 12, 2026 · Fundamentals

Python from Zero to One – Part 7: Master math, random, and datetime in 5 Minutes

This tutorial reviews three import patterns, demonstrates essential functions of the math, random, and datetime built‑in modules with concrete code examples, combines them in a practical exercise, highlights four common beginner pitfalls with fixes, and provides short post‑lesson tasks.

Pythonbuilt-in modulesdatetime
0 likes · 8 min read
Python from Zero to One – Part 7: Master math, random, and datetime in 5 Minutes
liandk
liandk
May 11, 2026 · Fundamentals

Python Modules & Imports: Master Third‑Party Packages in 5 Minutes

This guide teaches you what Python modules are, demonstrates three import styles, shows how to install third‑party packages using reliable mirrors, and walks through practical examples—including random score generation and common pitfalls—to help you quickly leverage modules for automation and web scraping.

AutomationMirror repositoriesModules
0 likes · 6 min read
Python Modules & Imports: Master Third‑Party Packages in 5 Minutes
liandk
liandk
May 11, 2026 · Fundamentals

Python Functions in 5 Minutes: Define, Call, and Reuse Code Efficiently

This tutorial teaches beginners how to define and invoke Python functions, handle parameters and return values, use default arguments, avoid common pitfalls, and apply functions to lists and dictionaries for effective code reuse, all within a short hands‑on session.

BeginnerDebuggingParameters
0 likes · 6 min read
Python Functions in 5 Minutes: Define, Call, and Reuse Code Efficiently
liandk
liandk
May 11, 2026 · Fundamentals

Python Lists & Dictionaries: Master Key Data Structures in 5 Minutes

This tutorial walks you through the essential operations of Python lists and dictionaries, demonstrates combined usage, highlights four common pitfalls with fixes, and provides quick hands‑on exercises so you can store and manipulate data efficiently in just five minutes.

Data StructuresPythonbeginners
0 likes · 7 min read
Python Lists & Dictionaries: Master Key Data Structures in 5 Minutes
liandk
liandk
May 11, 2026 · Fundamentals

Master Python Variables and 4 Core Data Types in 5 Minutes

This short tutorial teaches how to define variables and use Python’s four fundamental data types—strings, integers, floats, and booleans—through concise code examples, common pitfalls, and practice exercises, enabling beginners to store and manipulate data within five minutes.

Pythonbooleansdata types
0 likes · 5 min read
Master Python Variables and 4 Core Data Types in 5 Minutes
liandk
liandk
May 10, 2026 · Fundamentals

Python Basics in 3 Minutes: What It Can Do and How to Get Started

This guide explains Python's main uses—automation, web scraping, and simple web apps—walks through Windows/macOS installation, shows how to run the first program, lists four common beginner pitfalls with solutions, and summarizes key takeaways for rapid onboarding.

AutomationBeginner tutorialCommon pitfalls
0 likes · 4 min read
Python Basics in 3 Minutes: What It Can Do and How to Get Started
liandk
liandk
May 9, 2026 · Frontend Development

Build a Complete Multi‑Platform E‑Commerce App from Scratch: Full Development Workflow

This tutorial walks you through the entire real‑world e‑commerce development process—from requirement analysis and architecture design to page implementation, feature integration, optimization, and multi‑platform publishing (H5, WeChat mini‑program, and native app) with concrete code examples.

Vuecross‑platforme-commerce
0 likes · 9 min read
Build a Complete Multi‑Platform E‑Commerce App from Scratch: Full Development Workflow