擅长:python、mysql、java
<p>您使用<code>zip</code>,但您想要<a href="https://docs.python.org/3.6/library/itertools.html#itertools.chain" rel="nofollow noreferrer">^{<cd2>}</a>。另外<a href="https://stackoverflow.com/a/1549854/3377150">you should use ^{<cd3>} to check class membership</a>。在</p>
<pre><code>from itertools import chain
for elem in chain(test1, test2, test3):
if isinstance(elem, int):
int_list.append(elem)
</code></pre>