use fabric to achievement drawing board and support free drawing, line, rect,cirlce,eraser,text,pan,scale,undo,redo,clear, save(使用fabric实现画板功能，支持画笔，绘制直线，矩形，圆形，文字，移动缩放画布，撤销重做，清屏与保存功能)
如题：复杂图形，比如矩形中带文字，双击编辑文字，等等功能。
大佬，点击 根据线条拼接出的图形，填充颜色，这块如何实现
帅哥，如果我用画笔画了两个不同图形，如何获取点击的是哪个图形？然后根据点击的图形上色？
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.
