擅长:python、mysql、java
<p>如果您对空气质量指数感兴趣,请找到<code>div</code>和<code>aqivalue</code>等级:</p>
<pre><code>>>> import urllib
>>> from bs4 import BeautifulSoup
>>>
>>> url = "http://aqicn.org/city/shenyang/usconsulate/json"
>>> soup = BeautifulSoup(urllib.urlopen(url), "html.parser")
>>> soup.find("div", class_="aqivalue").get_text()
u'171'
</code></pre>