擅长:python、mysql、java
<p><a href="https://docs.python.org/3/library/heapq.html#heapq.nlargest" rel="noreferrer">^{<cd1>}</a>使用自定义键应该可以实现以下功能:</p>
<pre class="lang-py prettyprint-override"><code>from heapq import nlargest
list_ = [(55, 55), (77, 81), (95, 129)]
result = nlargest(2, list_, key = lambda x: x[1] - x[0])
</code></pre>