擅长:python、mysql、java
<p>试试这个:</p>
<pre><code>import urllib.request
from bs4 import BeautifulSoup
url = "https://wwwn.cdc.gov/nchs/nhanes/search/datapage.aspx?Component=Examination"
with urllib.request.urlopen(url) as page:
html_source = page.read()
soup = BeautifulSoup(html_source, 'html5lib')
link = soup.find_all("span", class_="print-only")
</code></pre>