擅长:python、mysql、java
<p>听起来你真正想要的是一个简单的<code>set</code></p>
<pre><code>for filename in filelist:
if filename.endswith(".mp3"):
try:
id3r = id3reader.Reader(filename)
except (UnicodeDecodeError, IOError):
pass
else:
artist = ensureutf8andstring(id3r.getValue('performer'))
title = ensureutf8andstring(id3r.getValue('title'))
if artist != "None" or title != "None":
if (artist, title) in lovedSongs:
print artist + ' - ' + title
</code></pre>