擅长:python、mysql、java
<p>你很接近,请尝试下面的片段:</p>
<pre><code>>>> my_dict = {
... "keyA": 1,
... "keyB": 2,
... "keyC": 3
... }
>>> invalid = {"keyA", "keyB"}
>>> def without_keys(d, keys):
... return {x: d[x] for x in d if x not in keys}
>>> without_keys(my_dict, invalid)
{'keyC': 3}
</code></pre>
<p>基本上,在上述情况下,<code>if k not in keys</code>将在听写理解结束时进行。</p>