展示HN：从视频中提取并运行代码
我花了很多时间通过教程学习编程。视频的一个问题是，它将信号和噪声压缩成一个单一的流。信息密度很高，但可获取的密度却很低。
我创建了YouNote，使其更像一个数据库，除了它是多模态和互动的。你可以在一个界面中点击、提取代码、运行、修改和重新运行。它会保留你所做的一切，这样你就可以随着时间的推移建立一个有用信息的知识库。
试试看 - 无需注册：
<a href="https://younote.co/kane/share/VMj-3S1tku0?token=1CIznh5eGzDNVEIM" rel="nofollow">https://younote.co/kane/share/VMj-3S1tku0?token=1CIznh5eGzDN...</a>
在任何单元格上点击“运行”并直接进行实验——它通过Pyodide在浏览器中执行，并支持NumPy、Pandas、SciPy、Matplotlib、SymPy和Statsmodels。较重的工作负载（如PyTorch）将在Colab中打开。
当前限制：
单元格执行
目前仅支持YouTube
共享工作区为只读，但功能齐全（代码可以运行）
框架（EdArXiv）：
<a href="https://osf.io/preprints/edarxiv/fntyu_v1" rel="nofollow">https://osf.io/preprints/edarxiv/fntyu_v1</a>
希望听到你对这个工具在学习/实验中是否有用的看法——或者你认为它可以做得更好的地方。
查看原文
I’ve spent a lot of time learning how to code from tutorials. The problem with video is that it compresses signal and noise into a single stream. The information density is high but the accessible density is low.<p>I built YouNote to make it more like a database. except it's multimodal and interactive. You can click, extract code, run, modify and re-run in one surface. It preserves everything you do so you can build a knowledge base of useful information over time.<p>Try it out - no signup needed:
<a href="https://younote.co/kane/share/VMj-3S1tku0?token=1CIznh5eGzDNVEIM" rel="nofollow">https://younote.co/kane/share/VMj-3S1tku0?token=1CIznh5eGzDN...</a><p>Click 'run' on any cell and experiment with it directly — it executes in-browser via Pyodide and supports NumPy, Pandas, SciPy, Matplotlib, SymPy, and Statsmodels. Heavier workloads (like PyTorch) open in Colab.<p>Current limitations:
Single-cell execution
YouTube-native for now
Shared workspace is view-only but fully-featured (code will run)<p>Framework (EdArXiv):
<a href="https://osf.io/preprints/edarxiv/fntyu_v1" rel="nofollow">https://osf.io/preprints/edarxiv/fntyu_v1</a><p>Would love to hear if you find this useful for learning/experimenting — or what you think it could do better.