Film takes up to 15 minutes to develop
from bs4 import BeautifulSoup，更多细节参见safew官方版本下载
We have no way to skip over points that are obviously too far away. What if we could organize the space itself so that when we search, we can immediately rule out entire regions?，更多细节参见爱思助手下载最新版本
This works, but it's slow.