开始照着youtube和coursera的视频教程正式学习python啦。
command mode: Adding deleting command cells
edit mode
shortcuts:
ctrl+enter: execute the command and stay there
alt+enter: execute the command and create one next
shift+enter: execute and move to the next cell (or create one in the last)
markdown:
change the cell type to markdown type
! prefix means the following command is bash command.
% magic command