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政采云技术
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政采云技术

ZCY Technology Team (Zero), based in Hangzhou, is a growth-oriented team passionate about technology and craftsmanship. With around 500 members, we are building comprehensive engineering, project management, and talent development systems. We are committed to innovation and creating a cloud service ecosystem for government and enterprise procurement. We look forward to your joining us.

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Recent Articles

Latest from 政采云技术

100 recent articles max
政采云技术
政采云技术
Jun 7, 2023 · Frontend Development

Comprehensive Guide to CSS Background Gradients: Radial, Linear, Conic, and Repeating

This article explains how to create various CSS background gradients—including radial, linear, conic, and their repeating forms—by detailing syntax, parameters such as shape, size, position, color stops, and provides practical code examples to help developers translate design specifications into accurate CSS.

background-gradientconic-gradientfrontend
0 likes · 11 min read
Comprehensive Guide to CSS Background Gradients: Radial, Linear, Conic, and Repeating
政采云技术
政采云技术
Jun 6, 2023 · Mobile Development

Improving Flutter Unit Testing: Practices, Tools, and Common Issues

This article shares a team's experience of establishing and refining Flutter unit testing across multiple apps, covering preparation, tooling, coverage improvement, effective test writing, efficiency tricks, and a detailed FAQ of common pitfalls and solutions.

CI/CDcoveragemobile development
0 likes · 17 min read
Improving Flutter Unit Testing: Practices, Tools, and Common Issues
政采云技术
政采云技术
Jun 1, 2023 · Fundamentals

Fundamentals of Audio and Video Capture for Real‑Time Applications

This article introduces the basic concepts of audio and video capture—including sampling, quantization, PCM storage, YUV formats, camera operation, and pixel resolution—explaining how these technologies enable non‑contact, fully digital government procurement services during the COVID‑19 pandemic.

PCMaudiocapture
0 likes · 17 min read
Fundamentals of Audio and Video Capture for Real‑Time Applications
政采云技术
政采云技术
May 31, 2023 · Frontend Development

Frontend Single File Upload to Cloud Service Storage

This article explains the common approaches for uploading a single file from a web front‑end to cloud storage, compares backend‑mediated and direct browser uploads, provides SDK and temporary‑URL examples with code, and discusses encryption, request formats, and best‑practice recommendations.

File UploadSDKcloud storage
0 likes · 16 min read
Frontend Single File Upload to Cloud Service Storage
政采云技术
政采云技术
May 24, 2023 · Frontend Development

LocatorJS Source Code Analysis: Architecture, Chrome Extension Integration, and Runtime Mechanics

This article provides a detailed walkthrough of LocatorJS, covering how to clone the repository, set up the development environment, explore the Chrome extension code, and dissect the runtime implementation that leverages React fiber, SolidJS components, and Babel plugins to enable precise code‑to‑UI mapping.

Babel PluginChrome ExtensionLocatorJS
0 likes · 11 min read
LocatorJS Source Code Analysis: Architecture, Chrome Extension Integration, and Runtime Mechanics
政采云技术
政采云技术
May 18, 2023 · Backend Development

Understanding Spring Retry: A Comprehensive Guide to Retry, Backoff, and Circuit Breaker Mechanisms

This article explains the concept of retry in distributed systems, introduces Spring Retry and its annotations, demonstrates Maven dependencies, configuration, various retry policies, backoff strategies, circuit breaker support, and walks through the core implementation details with practical code examples.

AnnotationsBackoffCircuitBreaker
0 likes · 20 min read
Understanding Spring Retry: A Comprehensive Guide to Retry, Backoff, and Circuit Breaker Mechanisms
政采云技术
政采云技术
May 17, 2023 · Frontend Development

Unlock Front‑End Quality: A Complete Guide to Jest Automated Testing

This article explains automated testing concepts, compares unit, integration, TDD and BDD approaches, shows how to write Jest test cases without a framework, configure Jest, use matchers, handle async code, hooks, mocks, timers, snapshots, DOM testing, and provides practical code examples and repository links.

Jestasynchronous testingfrontend testing
0 likes · 28 min read
Unlock Front‑End Quality: A Complete Guide to Jest Automated Testing
政采云技术
政采云技术
May 11, 2023 · Databases

Redis Persistence: RDB Snapshots, AOF Write‑Ahead Log, and Hybrid Persistence

Redis provides two primary persistence mechanisms—RDB snapshots that capture the dataset at specific moments and AOF write‑ahead logs that record every write command—along with a hybrid model combining both, each with distinct strategies, advantages, drawbacks, and configuration options to ensure data durability and fast recovery.

AOFHybridPersistence
0 likes · 15 min read
Redis Persistence: RDB Snapshots, AOF Write‑Ahead Log, and Hybrid Persistence