擅长:python、mysql、java
<p>尝试全局:</p>
<pre><code>In [82]: for i in ['var1', 'var2', 'var3']:
...: if i in globals():
...: print(f'{i} already present in the global namespace')
...: else:
...: globals()[i] = []
...:
In [83]: var1
Out[83]: []
</code></pre>