擅长:python、mysql、java
<p>使用lookback:</p>
<pre><code>>>> stringA = 'abcdf123456789'
>>> re.split(r'(?<=\d{6})', stringA, maxsplit=1)
['abcdf123456', '789']
</code></pre>
<p><a href="https://regex101.com/r/qW3Wij/1" rel="nofollow noreferrer">Demo and explanation of the regex</a></p>