cmd python book_downloader.py server_page category_page book_name where {server_page}, {category_page} and {book_name} are optional input.

Currently only support the downloading of books on http://www.biqukan.com/ best since different website may have different format for the catagery pages.

cmd photo_downloader.py max_page where {max_page} is the number of pages user wants to download.

This photo downloader is only suitable for https://unsplash.com/.