jupyter nbviewer：https://nbviewer.jupyter.org/github/yeshan333/JupyterNotebook-Show-sample
binder：https://mybinder.org/v2/gh/yeshan333/JupyterNotebook-Show-sample/master?filepath=demo.ipynb
google colab：https://colab.research.google.com/github/yeshan333/JupyterNotebook-Show-sample/blob/master/demo.ipynb