擅长:python、mysql、java
<p>请尝试以下操作:</p>
<pre><code>import pandas as pd
import re
repat = re.compile('\d+(?:\.\d+)?')
# sample data frame
df = pd.DataFrame({'Return': ['some data 123.123', 'tick 0.12']})
df.loc[:, 'Converted'] = df.Return.apply(lambda x: float(repat.findall(x)[0]))
</code></pre>
<p>希望有帮助</p>