<p>看起来,大量的内部列表是不必要的,但如果您真的需要它们,那么这应该可以处理所有可能发生的情况:</p>
<pre><code>taglist = [[{'script': [{'domain': 'random.com', 'path': 'js/custom.js'}]},
{'script': [{'domain': 'cdnjs.cloudflare.com',
'path': '/ajax/libs/fancybox/2.1.5/jquery.fancybox.min.js'}]},
{'link': [{'domain': 'random.com', 'path': 'css/bootstrap.min.css'}]},
{'link': [{'domain': 'random.com', 'path': 'css/style.css'}]},
{'link': [{'domain': 'random.com', 'path': 'css/responsive.css'}]},
{'link': [{'domain': 'random.com',
'path': 'css/jquery.mCustomScrollbar.min.css'}]},
{'link': [{'domain': 'netdna.bootstrapcdn.com',
'path': '/font-awesome/4.0.3/css/font-awesome.css'}]}]]
D = set()
with open('domain.txt', 'w') as dfile:
for tag in taglist:
for subtag in tag:
if (d := subtag.get('script', None)) is None:
if (d := subtag.get('link', None)) is None:
continue
for e in d:
if (domain := e.get('domain', None)):
D.add(domain)
for domain in D:
print(domain, file=dfile)
</code></pre>
<p>[注意:这需要Python 3.8+]</p>