在做一些绘图类应用时，有时会遇到处理“图层”的问题，而HTML5原生的Canvas并没有“图层”的概念，所以需要一些特别的手段来实现多图层绘图。本文介绍一种多canvas重叠模拟图层的方法来实现多图层的各种操作。

GitHub 地址：https://github.com/vimcaw/pixelshop

English intro

Pixelshop is A small Photoshop, Vue.js-based web application, which contains the most commonly used Photoshop features.

This Project is developing, because I just spend a little spare time, it will update very slowly.

preview: https://vimcaw.github.io/pixelshop/dist/index.html