Scratch 安装包
Scratch Offline Editor
Next download and install the Scratch 2.0 Offline Editor
Mac OS X - Download
Mac OS 10.5 & Older - Download
Windows - Download
Scratch Desktop （Scratch 3.0）
Next download and install the Scratch 3.0 Offline Editor
macOS 10.13+ Download
Windows 10+ Download
Adobe AIR
If you don't already have it, download and install the latest Adobe AIR
Mac OS X - Download
Mac OS 10.5 & Older - Download
Windows - Download