擅长:python、mysql、java
<p>您可以保存对变量的<code>find_all</code>方法调用并检查其长度:</p>
<pre><code>import random
from bs4 import BeautifulSoup
import urllib2
import re
from urlparse import urljoin
user_input = raw_input ("Search for Team = ");
resp = urllib2.urlopen("http://idimsports.eu/football.html")
soup = BeautifulSoup(resp, from_encoding=resp.info().getparam('charset'))
base_url = "http://idimsports.eu"
links = soup.find_all('a', href=re.compile(''+user_input))
if len(links) == 0:
print "no streams available"
else:
for link in links:
print urljoin(base_url, link['href'])
</code></pre>