擅长:python、mysql、java
<p>您没有使用<strong>x</strong>(我建议使用更好的名称)。你知道吗</p>
<p>此代码适用于Python 2.7和Python 3.x:</p>
<pre><code>films = {
"2005": ["Munich", "Steven Spielberg"],
"2006": [["The Prestige", "Christopher Nolan"], ["The Departed", "Martin Scorsese"]]
}
for year in sorted(films.keys()):
print(year)
if isinstance(films[year][0], list):
films_list = films[year]
else:
films_list = [films[year]]
for film in films_list:
print(", ".join(film))
print("")
</code></pre>