擅长:python、mysql、java
<p>使用<a href="https://docs.python.org/3/tutorial/datastructures.html#list-comprehensions" rel="nofollow noreferrer">list comprehension</a>和<a href="https://docs.python.org/3/library/stdtypes.html#dict.get" rel="nofollow noreferrer">^{<cd1>}</a>可以这样做:</p>
<h3>代码:</h3>
<pre><code>solutions = [my_dict.get(k, 'Nan') for k in my_keys]
</code></pre>
<h3>测试代码:</h3>
<pre><code>my_dict = {'one': 1, 'two': 2, 'three': 3}
my_keys = ['three', 'one', 'ten', 'one']
solutions = [my_dict.get(k, 'Nan') for k in my_keys]
print(solutions)
</code></pre>
<h2>结果:</h2>
<pre><code>[3, 1, 'Nan', 1]
</code></pre>