摘要：
解决方案：import urllib.requestfrom bs4 import BeautifulSoup site = 'http://www.pm25.com/' html = urllib.request.urlopen(site) soup = BeautifulSoup(html,'h 阅读全文
摘要：
#!/usr/bin/env python # -*- coding:utf-8 -*- #@Time : 2020/4/22 16:14 #@Author: ltl #@File : PM2.5Download.py import urllib.request import threading f 阅读全文