Blockly is a drag-n-drop library made by Google. It can define custom blocks, include plug-ins, convert blocks to real code, and more. Many drag-n-drop code interfaces are based on it, most of which are educational.
Plugins, codelabs, and examples related to the Blockly library.
The code powering code.org and studio.code.org
翻译 - 支持code.org和studio.code.org的代码
