擅长:python、mysql、java
<p>你可以试试<a href="https://docs.python.org/3/library/stdtypes.html#str.rsplit" rel="nofollow noreferrer">rsplit</a>:</p>
<pre><code>"centerOne_camera_2_2018-04-11_15:11:21_2.0.jpg".rsplit("_", 1)
['centerOne_camera_2_2018-04-11_15:11:21', '2.0.jpg']
</code></pre>