擅长:python、mysql、java
<p>您可以使用<a href="https://docs.python.org/2/library/stdtypes.html#str.rsplit" rel="nofollow">^{<cd1>}</a>:</p>
<pre><code>>>> editstr = str.rsplit('/folderD', 1)[0]
>>> print(editstr)
/folderA/folderB/folderC
</code></pre>