视频分为公开，特定公开，与不公开 3 种
1.公开：视频资讯（e.g.：视频title，duration，热门影片，首页，动态…...）可以由gaia明文来存取，一般人能看到视频资讯与播放视频 2.不公开：视频资讯可以由gaia密文来存取，只有自己能看到视频资讯与播放视频 3.特定公开：视频资讯可以由拥有者定向授权给特定用户观看，可以使用第六课的Radiks用户分组授权功能来存取
视频本身相关data（e.g.：视频title，duration，热门影片，首页，动态…...），因为每个人都可以看视频
每个用户观看视频的详细资讯（e.g.:观看记录，收藏列表，播放列表，记录前次观看视频的时间...... ）
##设计
本项目以 Create React App 为框架启动
安装依赖包
运行程序，在 localhost:3000 端口查看应用执行情
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
Django
The Web framework for perfectionists with deadlines.
Laravel
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft
Open source projects and samples from Microsoft.
Google
Google ❤️ Open Source for everyone.
Alibaba
Alibaba Open Source for everyone
D3
Data-Driven Documents codes.
Tencent
China tencent open source team.
