The code of ‘Projecting 1 km-grid population distributions from 2020 to 2100 globally under shared socioeconomic pathways’

Code Example of manuscript 'Projecting 1 km-grid population distributions from 2020 to 2100 globally under shared socioeconomic pathways '. This study is based on ArcGIS and python, so many operations are performed using ArcGIS, so this code is incomplete. Also there will be some bugs and inappropriate edits in the code that are worth correcting.