擅长:python、mysql、java
<pre><code>filenames = [ r'config1.txt',
r'config2.txt',
r'config3.txt',
r'config4.txt' ]
results = {}
for filename in filenames:
with open(filename, 'r') as f:
contents = ( line.split()[1] for line in f )
key = frozenset(contents)
results.setdefault(key, []).append(filename)
</code></pre>