擅长:python、mysql、java
<p>使用<a href="https://docs.python.org/3.2/library/copy.html" rel="nofollow">^{<cd1>}</a>模块。你知道吗</p>
<pre><code>import copy
a = [1,2,3]
def b(x):
z = copy.deepcopy(x)
z.append(10)
return z
b(a)
print(a)
</code></pre>
<p>这个指纹</p>
<pre><code>[1, 2, 3, 10]
[1, 2, 3]
</code></pre>