擅长:python、mysql、java
<p>使用<code>set</code>:</p>
<pre><code>usa = ["kebab","pizza", "hamburger"]
uk = ["kebab", "hamburger"]
s1 = set(usa)
s2 = set(uk)
s1.issuperset(s2) # True
s2.issubset(s1) # False
</code></pre>
<p>找到交叉点:</p>
<pre><code>s1.intersection(s2) # {'hamburger', 'kebab'}
</code></pre>