macOS 如何快速压缩gif（gifsicle）

gifsicle介绍

-O1 Stores only the changed portion of each image. This is the default.
-O2 Also uses transparency to shrink the file further.
-O3 Try several optimization methods (usually slower, sometimes better results).
Gifsicle是用于创建，编辑和获取有关GIF图像和动画的信息的命令行工具。使用gifsicle制作GIF动画很容易

安装

npm --registry https://registry.npm.taobao.org install  --global gifsicle

压缩demo

gifsicle --colors 256 -o3 b.gif -o a1.gif