擅长:python、mysql、java
<p>如果字符串只包含一个实例,请改用<a href="https://docs.python.org/2/library/re.html#re.search" rel="nofollow">^{<cd1>}</a>:</p>
<pre><code>>>> import re
>>> s = "api('randomkey123xyz987', 'key', 'text')"
>>> match = re.search(r"api\('([^']*)'", s).group(1)
>>> print match
randomkey123xyz987
</code></pre>