擅长:python、mysql、java
<p>您必须按<code>points</code>对数据进行排序,并仅打印其<code>name</code></p>
<pre><code>worldCup = [{'name':"Spain", 'points':9},{'name':"Portugal",'points':7},{'name':"Iran",'points':6}]
for item in sorted(worldCup, key=lambda x:x['points'], reverse=True):
print(item['name'])
</code></pre>