擅长:python、mysql、java
<p>您应该像下面这样用<code>()</code>分配文本组来捕获它的特定部分。</p>
<pre><code>new_df['just_movie_titles'] = df['movie_title'].str.extract('(.+?) \(')
new_df['just_movie_titles']
</code></pre>
<blockquote>
<p><strong><a href="http://pandas.pydata.org/pandas-docs/version/0.15.2/generated/pandas.core.strings.StringMethods.extract.html" rel="nofollow">pandas.core.strings.StringMethods.extract</a></strong></p>
<p><strong>StringMethods.extract(pat, flags=0, **kwargs)</strong></p>
<p>Find groups in each string using passed regular expression</p>
</blockquote>