python爬虫各个城市空气质量检测

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作者：小锋
功能描述：网络爬虫
版本号：2.0
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根据小象学习案例做的小测试，只是将结果打印在控制台，还没有转字符串类型，想保存在本地的可以自己添加
import requests
from bs4 import BeautifulSoup

def get_city_aqi(city_pinyin):
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返回城市AQI
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url = ‘http://pm25.in/’ + city_pinyin
r = requests.get(url,timeout=30)

soup=BeautifulSoup(r.text,'lxml')
div_list=soup.find_all('div',{'class':'span1'})

city=[]
for i in range(8):
    div_content = div_list[i]
    caption = div_content.find('div',{'class':'caption'}).text.strip()
    value=div_content.find('div',{'class':'value'}).text.strip()
    city.append((caption,value))
return city

def get_city_name():
url = ‘http://pm25.in/’
city_list=[]
r = requests.get(url,timeout=30)
print(r.status_code)
soup=BeautifulSoup(r.text,‘lxml’)

city_div=soup.find_all('div',{'class':'bottom'})[1]

city_link_lis