擅长:python、mysql、java
<p>另一个简短的解决方案是通过使用带有<a href="https://docs.python.org/3/library/re.html#re.MULTILINE" rel="nofollow noreferrer">re.MULTILINE</a>标志的<a href="https://docs.python.org/3/library/re.html#re.findall" rel="nofollow noreferrer">re.findall</a>函数(from <code>re</code>模块)来获得每行开头的数字:</p>
<pre><code>import re
# your 'data' with text
print(re.findall(r'^\d+\b', data, flags=re.MULTILINE))
</code></pre>
<p>输出:</p>
^{pr2}$