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1391 articles · Page 13 of 14
DevOps Cloud Academy
DevOps Cloud Academy
Aug 1, 2019 · Fundamentals

Python Basic Data Types: Strings, Numbers, Lists, Tuples, and Dictionaries with Examples

This article introduces Python’s fundamental data types—including strings, numbers, lists, tuples, and dictionaries—explaining their characteristics, common operations, built‑in methods, and providing clear code examples for each concept; it also covers escape sequences, slicing, concatenation, formatting, and basic arithmetic operators, helping beginners grasp essential Python programming constructs.

Data TypesFundamentalsList
0 likes · 11 min read
Python Basic Data Types: Strings, Numbers, Lists, Tuples, and Dictionaries with Examples
DevOps Cloud Academy
DevOps Cloud Academy
Jul 31, 2019 · Fundamentals

Python Basic Data Types and Operations Tutorial

This tutorial introduces Python's fundamental data types—including strings, numbers, lists, tuples, and dictionaries—explains their characteristics, common built‑in functions, and demonstrates practical code examples for manipulation, formatting, and conversion.

Data TypesDictionariesLists
0 likes · 11 min read
Python Basic Data Types and Operations Tutorial
Programmer DD
Programmer DD
Jul 16, 2019 · Operations

13 Fun Linux Terminal Commands to Wow Your Friends

This guide introduces thirteen entertaining Linux command‑line utilities—including sl, fortune, cowsay, cmatrix, figlet, oneko, and more—providing installation steps, usage examples, options, and visual illustrations so you can add playful effects to your terminal sessions.

Fun CommandsLinuxTerminal
0 likes · 8 min read
13 Fun Linux Terminal Commands to Wow Your Friends
Wukong Talks Architecture
Wukong Talks Architecture
Jul 5, 2019 · Game Development

Step-by-Step Guide to Building a Simple WeChat Mini‑Game

This article walks through the background, monetization considerations, and detailed implementation steps—including canvas creation, enemy and player sprites, movement, collision detection, and touch handling—required to develop a basic WeChat mini‑game, with full code snippets and resource links.

Game DevelopmentJavaScriptMiniGame
0 likes · 6 min read
Step-by-Step Guide to Building a Simple WeChat Mini‑Game
Liangxu Linux
Liangxu Linux
Jun 20, 2019 · Fundamentals

Master grep: Essential Linux Text Search Commands and Tips

This guide explains how to use the Linux grep command for powerful text searching, covering common options, file content searches, recursive scans, exclusion patterns, case‑insensitive matching, context lines, rule‑file searches, and regular‑expression techniques with practical examples.

LinuxShellcommand-line
0 likes · 9 min read
Master grep: Essential Linux Text Search Commands and Tips
MaGe Linux Operations
MaGe Linux Operations
May 30, 2019 · Fundamentals

Master Python List Comprehensions: Turn Loops into One‑Liners

This tutorial explains Python list comprehensions, showing how to replace traditional for‑loops with concise one‑line expressions for generating simple, filtered, nested, and transformed lists, complete with clear code examples and step‑by‑step explanations.

Loopslist comprehensionprogramming
0 likes · 5 min read
Master Python List Comprehensions: Turn Loops into One‑Liners
MaGe Linux Operations
MaGe Linux Operations
May 21, 2019 · Fundamentals

16 Mind‑Blowing Python One‑Liners That Do Everything From Fractals to Fun

This article presents sixteen compact Python one‑liners that generate a Mandelbrot fractal, print the multiplication table, draw heart and spiral patterns, compute primes, Fibonacci numbers, quicksort, display the Zen of Python, launch a web server, simulate a slot machine, solve the N‑Queens puzzle, flatten arrays, sum the digits of 2ⁱ⁰⁰⁰, and even wish a happy birthday, each accompanied by brief explanations and visual output.

One-linerPythoncode snippets
0 likes · 12 min read
16 Mind‑Blowing Python One‑Liners That Do Everything From Fractals to Fun
网易UEDC
网易UEDC
Apr 15, 2019 · Fundamentals

How to Create High-End Visual Texture in UI Design: A Step‑by‑Step Guide

This tutorial explains the concept of visual texture, breaks down its essential elements such as overall lighting, subtle gradients, and fine details, and walks you through an eight‑step case study using Photoshop to produce a polished, high‑quality design that feels rich and tactile.

PhotoshopUI designdesign
0 likes · 9 min read
How to Create High-End Visual Texture in UI Design: A Step‑by‑Step Guide
Programmer DD
Programmer DD
Mar 29, 2019 · Backend Development

What Is Spring Cloud Alibaba and Why It Deserves a Dedicated Tutorial?

The article introduces Spring Cloud Alibaba, explains its incubating status and version relationship with Spring Boot and Spring Cloud, outlines its comprehensive feature set, and shares the author’s motivation for creating a step‑by‑step tutorial series to help developers quickly adopt this China‑focused cloud-native suite.

JavaMicroservicestutorial
0 likes · 7 min read
What Is Spring Cloud Alibaba and Why It Deserves a Dedicated Tutorial?
Programmer DD
Programmer DD
Mar 26, 2019 · Backend Development

Kickstart Spring Boot: Build and Test Your First Web App in Minutes

This tutorial walks you through creating a Spring Boot project with Spring Initializr, explains its lightweight advantages, shows how to set up the project structure, configure Maven dependencies, implement a simple HTTP endpoint, and write unit tests, all using Java and Maven.

Javamavenspring-boot
0 likes · 12 min read
Kickstart Spring Boot: Build and Test Your First Web App in Minutes
MaGe Linux Operations
MaGe Linux Operations
Feb 27, 2019 · Fundamentals

Automate Meme Creation with Python: From Image Prep to Text Overlay

This tutorial shows how a data analyst can use Python and Pillow to automatically prepare images, overlay emojis, add expressive text, and generate complete meme stickers, while also discussing layout challenges such as font sizing and line‑breaking within limited space.

AutomationMeme Generationimage-processing
0 likes · 5 min read
Automate Meme Creation with Python: From Image Prep to Text Overlay
MaGe Linux Operations
MaGe Linux Operations
Jan 31, 2019 · Fundamentals

Master Python Decorators: From Basics to Advanced Techniques

This article provides a comprehensive, code‑rich guide to Python decorators, covering why they are needed, how to write simple and parameterized decorators, class‑based decorators, built‑in decorators like @property and @classmethod, common pitfalls, and best‑practice optimizations using third‑party tools.

AdvancedDecoratorPython
0 likes · 21 min read
Master Python Decorators: From Basics to Advanced Techniques
21CTO
21CTO
Jan 29, 2019 · Fundamentals

Master Python Basics: Data Types, Control Flow, Functions, and More in Minutes

This tutorial introduces Python 3 fundamentals—including primitive data types, operators, variables, collections, control structures, functions, classes, modules, and advanced features like generators and decorators—through concise explanations and runnable code examples that let readers quickly grasp the language's core concepts.

Data TypesFunctionsProgramming Basics
0 likes · 19 min read
Master Python Basics: Data Types, Control Flow, Functions, and More in Minutes
Python Crawling & Data Mining
Python Crawling & Data Mining
Jan 19, 2019 · Fundamentals

Create a Real‑Time Analog Clock with Python Turtle

This article demonstrates how to use Python's built-in Turtle module to create an analog clock that displays the current time, including step-by-step explanations of setting up the Turtle objects, drawing the clock face, hands, and updating them in real time with code examples.

analog clockdatetimeturtle
0 likes · 9 min read
Create a Real‑Time Analog Clock with Python Turtle
Java Captain
Java Captain
Dec 28, 2018 · Backend Development

Introducing Hutool: A Comprehensive Java Utility Library

This article introduces the open‑source Chinese Java utility library Hutool, explains how to add it via Maven, demonstrates practical code examples such as HTTP form submission, HTML escaping, and scheduled tasks, and encourages developers to explore its extensive, well‑documented APIs.

Hutoolbackendcode example
0 likes · 6 min read
Introducing Hutool: A Comprehensive Java Utility Library
Ops Development Stories
Ops Development Stories
Dec 20, 2018 · Fundamentals

Master Python Statements: From Basics to Advanced Control Flow

This article provides a comprehensive guide to Python statements, covering assignment, function calls, control structures, loops, exception handling, and iteration techniques, complete with syntax rules, examples, and best practices for writing clean, efficient code.

Control FlowPythonprogramming
0 likes · 16 min read
Master Python Statements: From Basics to Advanced Control Flow
MaGe Linux Operations
MaGe Linux Operations
Dec 18, 2018 · Backend Development

Unlock 20+ Python Tricks: From Image Processing to Train Ticket Queries

This guide presents a collection of practical Python snippets covering image manipulation with Pillow, video downloading via youtube-dl, object introspection, music bot usage, financial data retrieval with Tushare, vulnerability lab setup, Beijing bus API queries, article extraction, QR code generation, fake user agents, HTTP request statistics, shell commands, Chinese text sentiment analysis, proxy handling, Zhihu API access, password breach checking, Nginx log analysis, and train ticket queries.

Pythoncode snippetsdata-processing
0 likes · 14 min read
Unlock 20+ Python Tricks: From Image Processing to Train Ticket Queries
UC Tech Team
UC Tech Team
Dec 3, 2018 · Mobile Development

A Complete Flutterverse Guide: How to Start Learning Flutter

This article provides a step‑by‑step tutorial for beginners who want to learn Flutter, covering prerequisites, a quick Dart introduction, installing and running a Hello World app, experimenting with core widgets, UI challenges, personal tips, and a curated list of further learning resources.

DARTFlutterLearning Resources
0 likes · 8 min read
A Complete Flutterverse Guide: How to Start Learning Flutter
21CTO
21CTO
Nov 6, 2018 · Frontend Development

Speed Up Electron Development with Electron Fiddle: A Quick Start Guide

This article introduces Electron Fiddle, explains how to install and run it, and demonstrates its key features such as template creation, code sharing via GitHub Gist, Monaco editor integration, and packaging apps for Windows, macOS, and Linux.

Desktop DevelopmentElectronFiddle
0 likes · 3 min read
Speed Up Electron Development with Electron Fiddle: A Quick Start Guide
Python Crawling & Data Mining
Python Crawling & Data Mining
Nov 1, 2018 · Fundamentals

Master Python Regex: Extract Any Date Format with Simple Patterns

This article walks through building and refining a Python regular expression that reliably matches a wide range of Chinese date formats—including year‑month‑day, year/month/day, and year‑month—explaining each component, testing against sample strings, and presenting the final pattern that captures all cases.

Pattern Matchingdate extractionregex
0 likes · 5 min read
Master Python Regex: Extract Any Date Format with Simple Patterns
Python Crawling & Data Mining
Python Crawling & Data Mining
Oct 30, 2018 · Fundamentals

Master Python Regex: Extract Dates with One Powerful Pattern

This tutorial walks through building and refining a Python regular expression that reliably matches a wide range of Chinese date formats—such as "2018年6月7日", "2018/6/7", "2018-06-07" and "2018-06"—by explaining each component, testing against sample strings, and presenting the final concise pattern.

Pythondate extractionregex
0 likes · 6 min read
Master Python Regex: Extract Dates with One Powerful Pattern
Python Crawling & Data Mining
Python Crawling & Data Mining
Oct 26, 2018 · Fundamentals

Master Python Regex: 14 Essential Special Characters Explained

This article provides a concise tutorial on Python regular expression special characters, detailing the meaning and usage of symbols such as \d, ?, +, {n}, |, and others, illustrated with examples and images, helping readers quickly grasp how to match digits, whitespace, word characters, and more in pattern matching.

Programming FundamentalsPythonSpecial Characters
0 likes · 5 min read
Master Python Regex: 14 Essential Special Characters Explained
MaGe Linux Operations
MaGe Linux Operations
Oct 14, 2018 · Fundamentals

Master Python Basics: Variables, Control Flow, Data Structures & OOP

This comprehensive guide walks you through Python fundamentals, covering variable assignment, data types, conditional statements, loops, list and dictionary operations, as well as class definitions, object instantiation, encapsulation, and inheritance, all illustrated with clear code examples.

LoopsPythonVariables
0 likes · 18 min read
Master Python Basics: Variables, Control Flow, Data Structures & OOP
UC Tech Team
UC Tech Team
Oct 8, 2018 · Frontend Development

How to Build a PWA Game with Preact in Five Steps

This tutorial walks you through creating a fully functional progressive web app (PWA) game using Preact, covering functional requirements, UI design, routing, component implementation, game logic, offline support, and deployment in a clear, step‑by‑step manner.

JavaScriptPWAPreact
0 likes · 11 min read
How to Build a PWA Game with Preact in Five Steps
Python Crawling & Data Mining
Python Crawling & Data Mining
Oct 1, 2018 · Fundamentals

Master Python Regex for Web Crawling: Quick Guide to ^, ., and *

This article explains why regular expressions are essential for Python web crawling, introduces the special characters ^, ., and *, and demonstrates their use with clear code examples and output screenshots, helping readers quickly grasp regex fundamentals for extracting patterns from HTML content.

data extractionregextutorial
0 likes · 5 min read
Master Python Regex for Web Crawling: Quick Guide to ^, ., and *
21CTO
21CTO
Sep 11, 2018 · Fundamentals

Getting Started with Go: Essential Tips and First Hello World

This article shares practical Golang notes, covering compilation, package structure, basic syntax, common pitfalls like GOPATH issues, and step‑by‑step screenshots of setting up a Hello World program in Eclipse.

FundamentalsGolanggo
0 likes · 3 min read
Getting Started with Go: Essential Tips and First Hello World
Tongcheng Travel Technology Center
Tongcheng Travel Technology Center
Aug 10, 2018 · Mobile Development

From Vue to React Native: A Complete Guide to Building a Delivery App on Android

This article shares a step‑by‑step experience of migrating a Vue‑based project to React Native for an Android delivery‑chain app, covering environment setup, debugging, common pitfalls, routing, state management, storage, hot updates, and practical code snippets to help newcomers get started quickly.

AndroidMobile DevelopmentReact Native
0 likes · 9 min read
From Vue to React Native: A Complete Guide to Building a Delivery App on Android
MaGe Linux Operations
MaGe Linux Operations
Aug 5, 2018 · Fundamentals

Master Matplotlib: Quick Start Guide to Plotting in Python

This beginner-friendly tutorial walks you through setting up Matplotlib, installing the library, and creating a variety of basic visualizations—including line plots, scatter plots, pie charts, bar charts, and histograms—while also covering multiple figures, subplots, and customization options for each chart type.

Data VisualizationMatplotlibplotting
0 likes · 12 min read
Master Matplotlib: Quick Start Guide to Plotting in Python
21CTO
21CTO
Jul 13, 2018 · Blockchain

Build a Simple PHP Blockchain from Scratch – Step‑by‑Step Guide

This tutorial explains the fundamentals of blockchain by defining block and blockchain classes in PHP, detailing fields, hash generation with SHA‑256, constructing genesis and subsequent blocks, and providing complete example code with a test run that demonstrates how each block links to its predecessor.

PHPcryptographytutorial
0 likes · 6 min read
Build a Simple PHP Blockchain from Scratch – Step‑by‑Step Guide
Python Crawling & Data Mining
Python Crawling & Data Mining
Jun 26, 2018 · Fundamentals

Quick Start Guide: Using PyCharm on Ubuntu 14.04

This step‑by‑step tutorial shows how to install Ubuntu 14.04, launch PyCharm, create a new Python project, set up a virtual environment, write and run a simple script, and manage the IDE on Ubuntu, complete with screenshots for each stage.

IDEPythonpycharm
0 likes · 5 min read
Quick Start Guide: Using PyCharm on Ubuntu 14.04
MaGe Linux Operations
MaGe Linux Operations
Jun 23, 2018 · Fundamentals

Master Matplotlib: Quick Start Guide to Plotting in Python

This tutorial introduces Matplotlib, a powerful Python 2D plotting library, covering installation, basic usage, multiple figure handling, subplots, and common chart types such as line, scatter, pie, bar, and histogram with clear code examples and visual illustrations.

Data VisualizationMatplotlibplotting
0 likes · 12 min read
Master Matplotlib: Quick Start Guide to Plotting in Python
Java Architect Essentials
Java Architect Essentials
Jun 23, 2018 · Backend Development

Build a Stylish Java Blog with SpringBoot: DBlog Quickstart Guide

This article introduces DBlog, a lightweight, responsive Java blog system built with SpringBoot and Bootstrap, outlines its module structure, technology stack, key features, and provides step‑by‑step instructions for setting up the development environment, configuring the database, and running the application.

BlogJavaOpenSource
0 likes · 6 min read
Build a Stylish Java Blog with SpringBoot: DBlog Quickstart Guide
Test Development Learning Exchange
Test Development Learning Exchange
Jun 21, 2018 · Backend Development

Eight‑Day Quick Guide to Building a Django Backend Administration System

This eight‑day tutorial introduces how to quickly set up a Django‑based backend administration system, covering required dependencies, installation commands, project creation, server launch, and verification steps, encouraging readers to practice each day and eventually build an automated front‑end data entry platform.

Backend DevelopmentDjangoMySQL
0 likes · 2 min read
Eight‑Day Quick Guide to Building a Django Backend Administration System
Ops Development Stories
Ops Development Stories
Jun 15, 2018 · Cloud Computing

Step-by-Step Guide to Launching an OpenStack Instance and Setting Up the Dashboard

This tutorial walks you through creating a virtual network, defining a tiny m1.nano flavor, generating key pairs, configuring security groups, launching an OpenStack instance, accessing it via a virtual console, and installing and configuring the OpenStack Horizon dashboard, complete with command examples and screenshots.

Cloud ComputingInstanceOpenStack
0 likes · 11 min read
Step-by-Step Guide to Launching an OpenStack Instance and Setting Up the Dashboard
DevOps Cloud Academy
DevOps Cloud Academy
Jun 11, 2018 · Operations

Creating and Configuring Jenkins Project Views

This guide explains how to create a new view in Jenkins, configure its settings, and modify the view later through the edit interface, providing step‑by‑step instructions with illustrative screenshots for effective job organization.

CI/CDJenkinsOperations
0 likes · 1 min read
Creating and Configuring Jenkins Project Views
ITPUB
ITPUB
Jun 11, 2018 · Cloud Native

Build a Tomcat Runtime on Docker: A Complete Step‑by‑Step Tutorial

This guide walks through installing Docker on Ubuntu, configuring user permissions, pulling a tutorial image, setting up SSH, installing JDK and Tomcat inside the container, and exposing ports so you can access a Tomcat server via the host, demonstrating a simple PaaS setup.

DockerLinuxdevops
0 likes · 9 min read
Build a Tomcat Runtime on Docker: A Complete Step‑by‑Step Tutorial
Liangxu Linux
Liangxu Linux
May 28, 2018 · Operations

Step‑by‑Step Guide to Installing a Linux VM with VMware

This guide walks Linux engineers through installing a VMware or VirtualBox virtual machine on a Windows PC, downloading the Ubuntu 18.04 64‑bit ISO, configuring hardware resources such as CPU, memory and disk, and completing the Ubuntu installation step by step, with screenshots for each stage.

LinuxUbuntuVMware
0 likes · 7 min read
Step‑by‑Step Guide to Installing a Linux VM with VMware
Practical DevOps Architecture
Practical DevOps Architecture
May 22, 2018 · Databases

Step-by-Step Guide to Installing MySQL 5.7 on Linux

This article provides a detailed, command-line tutorial for installing MySQL 5.7 on a Linux system, covering directory creation, downloading and extracting the binary package, user setup, initialization, configuration file adjustments, service startup, and password configuration.

InstallationLinuxMySQL
0 likes · 5 min read
Step-by-Step Guide to Installing MySQL 5.7 on Linux
Tencent Cloud Developer
Tencent Cloud Developer
May 18, 2018 · Frontend Development

Drawing Peppa Pig with Pure CSS: border-radius Technique Tutorial

An engineer from Tencent shows how to recreate Peppa Pig entirely with pure CSS by exploiting the border‑radius property to craft ellipses, rotate them, layer colors, and mask gaps, providing step‑by‑step code for each body part and a complete, animated illustration.

Web Graphicsborder-radiuscss
0 likes · 7 min read
Drawing Peppa Pig with Pure CSS: border-radius Technique Tutorial
ITPUB
ITPUB
May 16, 2018 · Fundamentals

Essential Vim Commands: A Comprehensive Guide for Efficient Editing

This guide presents a complete reference of Vim commands—including history navigation, file handling, mode switching, cursor movement, searching, replacing, undo/redo, copying, pasting, window management, macro recording, shell execution, commenting, and help—so users can master efficient text editing in Vim across Unix and Windows environments.

Text EditorVimtutorial
0 likes · 16 min read
Essential Vim Commands: A Comprehensive Guide for Efficient Editing
MaGe Linux Operations
MaGe Linux Operations
Apr 22, 2018 · Fundamentals

Python Data Structures: Strings, Lists, Tuples, Dicts & Sets

This guide walks through Python’s core data structures—strings, lists, tuples, dictionaries, and sets—detailing their creation, common built‑in methods, slicing, updating, and iteration with clear code examples, helping readers master essential operations for effective data manipulation.

Data StructuresDictionariesLists
0 likes · 11 min read
Python Data Structures: Strings, Lists, Tuples, Dicts & Sets
MaGe Linux Operations
MaGe Linux Operations
Apr 18, 2018 · Blockchain

Build a Blockchain from Scratch with Python: Step‑by‑Step Guide

This article combines humorous blockchain anecdotes with a clear, illustrated explanation of blockchain fundamentals and a complete Python tutorial that walks you through creating a blockchain, implementing proof‑of‑work, exposing it via Flask APIs, and handling node consensus.

APIConsensusProof of Work
0 likes · 25 min read
Build a Blockchain from Scratch with Python: Step‑by‑Step Guide
MaGe Linux Operations
MaGe Linux Operations
Apr 11, 2018 · Backend Development

Getting Started with Flask: Installation, Routes, Templates & More

This tutorial walks you through installing Flask, creating a simple "Hello Flask" app, enabling debug mode, defining routes and path variables, building URLs, handling HTTP methods, static files, templates, logging, request data, file uploads, cookies, redirects, responses, and sessions, providing clear code examples for each feature.

Pythonbackendtutorial
0 likes · 16 min read
Getting Started with Flask: Installation, Routes, Templates & More
Python Crawling & Data Mining
Python Crawling & Data Mining
Mar 27, 2018 · Operations

How to Quickly Change the Hostname in CentOS VMs

Learn step‑by‑step how to modify a CentOS virtual machine’s hostname by editing /etc/hostname and /etc/hosts, verifying changes with cat, and restarting the system to apply the new name, with clear screenshots and tips for avoiding common pitfalls.

CentOSLinuxhostname
0 likes · 4 min read
How to Quickly Change the Hostname in CentOS VMs
JD Tech
JD Tech
Mar 27, 2018 · Frontend Development

Quick App Introduction and Hands‑On Development Guide

This article introduces the Quick App platform, explains its front‑end‑based architecture, provides a step‑by‑step Windows setup and project initialization guide, showcases UI layout and JavaScript code examples, compares it with Mini‑Programs and JDReact, and offers resources for developers interested in rapid, install‑free mobile app development.

JavaScriptMobile DevelopmentQuick App
0 likes · 8 min read
Quick App Introduction and Hands‑On Development Guide
Test Development Learning Exchange
Test Development Learning Exchange
Mar 17, 2018 · Databases

How to Set Up a Redis Cluster on macOS

This guide explains why a Redis cluster is needed for large data sets, describes the hash‑slot architecture introduced in Redis 3.0, and provides step‑by‑step instructions—including directory creation, configuration changes, instance startup, Ruby gem installation, and cluster creation commands—to build a functional Redis cluster on a Mac.

Redisclusterdatabase
0 likes · 8 min read
How to Set Up a Redis Cluster on macOS
ITPUB
ITPUB
Mar 7, 2018 · Fundamentals

Mastering grep: 12 Practical Linux Search Techniques

This guide walks you through twelve essential grep use‑cases on Linux, from installing the tool and listing packages to filtering files, displaying line numbers, counting matches, recursive searches, exact‑word matches, and working with compressed or regex‑based searches, all illustrated with clear command examples.

Searchcommand-linegrep
0 likes · 9 min read
Mastering grep: 12 Practical Linux Search Techniques
ITPUB
ITPUB
Mar 3, 2018 · Operations

Essential Linux Installation and Login Commands Explained

This guide walks through the most frequently used Linux installation and login commands—such as login, shutdown, halt, reboot, install, mount, umount, chsh, exit, last, file, mkdir, grep, dd, find, mv, ls, diff, cmp, cat, and ln—detailing their purpose, syntax, key options, and practical examples for effective system administration.

File ManagementInstallationLinux
0 likes · 39 min read
Essential Linux Installation and Login Commands Explained