[Python] Pycharm Installation on Ubuntu 16.04

$ sudo snap install pycharm-community --classic

之前辛辛苦苦下載安裝，都裝不起來 QQ
* https://askubuntu.com/questions/1025153/install-pycharm-community-on-ubuntu-16-04
* https://medium.com/@singh.shreya8/how-to-install-pycharm-in-ubuntu-16-04-ubuntu-14-04-ubuntu-18-04-linux-easiest-way-5ae19d052693