爬虫绕过cloudflare验证
换另外一个python库：cloudflare-scrape
pip install cfscrape
import cfscrape
scraper = cfscrape.create_scraper() # returns a CloudflareScraper instance
# Or: scraper = cfscrape.CloudflareScraper() # CloudflareScraper inherits from requests.Session
print(scraper.get("http://...",headers={'user-agent':'...'}).text) # => "<!DOCTYPE html><html><head>..."
tip：
- 支持的Python版本：2.6 - 3.7
- 需要nodejs环境
