擅长:python、mysql、java
<p>我会使用<a href="https://docs.python.org/3/library/functions.html#map" rel="nofollow noreferrer">^{<cd1>}</a>和{a2}:</p>
<pre><code>sublist = ['x', 'str', 'a', 'pr']
string = "rprpraxp"
print(sum(map(string.count, sublist)))
</code></pre>