Python -O won’t magically make every script faster, but in the right workloads it’s a free win—here’s how to test it safely.

Why write ten lines of code when one will do? From magic variable swaps to high-speed data counting, these Python snippets ...

大家好，欢迎来到 Crossin 的编程教室。很多读者问过我同一个问题：“Crossin，我 Python 基础学完了，也刷了几本入门教程，接下来应该怎么进阶？”这个问题很常见，也很真实。有人写了两年多代码，业务、爬虫、数据处理都上手，可一翻 Django、FastAPI、pandas 或 asyncio ...

本文旨在系统性地研究基于深度学习的电信级反垃圾与反钓鱼防护机制。文章将首先分析当前短信诈骗的技术特征与演化趋势，随后构建一个包含数据预处理、特征工程、模型训练及实时推理的完整技术架构。重点探讨如何利用自然语言处理技术提取短信文本的深层语义特征，以及如 ...

Arousal fluctuates continuously during wakefulness, yet how these moment-to-moment variations shape large-scale functional connectivity (FC) remains unclear. Here, we combined 7T fMRI with concurrent ...

Abstract: In recent years, pulsed power systems (PPSs) have been widely deployed in defense and military applications, with most featuring high-power, high-repetition-rate characteristics such as ...

Microsoft is gearing up for big PowerShell and Windows OpenSSH changes in 2026, but security will come before flashy new features.

Unitree’s As2 robot dog hits 5 m/s and carries up to 65 kg standing, with IP54-rated Pro and Edu models plus optional Jetson Orin NX.