擅长:python、mysql、java
<p>您没有在<code>BeautifulSoup</code>构造函数中指定解析器。试着把<code>html.parser</code>放在那里:</p>
<pre><code>import urllib.request as urllib2
from bs4 import BeautifulSoup
import requests
url = 'https://www.ucf.edu/'
content = urllib2.urlopen(url).read()
soup = BeautifulSoup(content, 'html.parser') # < specify parser here
print(soup.prettify())
</code></pre>
<p>编辑:确保安装了最新版本的<code>BeautifulSoup</code>(可选的是最新版本的<code>lxml</code>)。我在版本<code>beautifulsoup4==4.8.0</code>和<code>lxml==4.3.4</code></p>