擅长:python、mysql、java
<p>试试这个:</p>
<pre><code>import itertools
def find_sum(s, lst):
return [x for x in itertools.combinations(lst, r=2) if x[0] + x[1] == s]
lst = [2, 4, 5, 6, 7, 8]
print(find_sum(12, lst))
</code></pre>
<p><strong>输出</strong>:</p>
<pre><code>[(4, 8), (5, 7)]
</code></pre>