如何使用“定义” https://github.com/amdjs/amdjs-api/wiki/AMD从CDN加载javascript？
我想在https://github.com/bradymholt/cronstrue内使用https://github.com/ipython-contrib/jupyter_contrib_nbextensions/blob/master/src/jupyter_contrib_nbextensions/nbextensions/autosavetime/main.js
这是我的nbextension Importing javascript from CDN in nbextension?
所必需的