擅长:python、mysql、java
<p>IIUC公司:</p>
<p>样品测向:</p>
<pre><code>In [99]: df
Out[99]:
txt
0 info \GPK HEK = 209+126.315\info ends here
1 blah-blah-blah GPK HEK = 1 + 2.33333end of string
</code></pre>
<p>解决方案:</p>
<pre><code>In [100]: df['txt'].str.extract(r'(GPK HEK\s*=\s*\d+\s*\+\s*\d+\.\d+)', expand=False)
Out[100]:
0 GPK HEK = 209+126.315
1 GPK HEK = 1 + 2.33333
Name: txt, dtype: object
</code></pre>