擅长:python、mysql、java
<p>必须将<a href="https://docs.python.org/2/library/functions.html#apply" rel="nofollow">user-defined or built-in function or method, or a class object</a>传递给<code>apply</code>方法,如果传递<code>awesome_count()</code>,则将返回值(<code>10</code>)传递给<code>apply</code>方法,则必须删除括号:</p>
<pre><code>def awesome_count():
return 10
products['awesome'] = products['word_count'].apply(awesome_count)
</code></pre>