擅长:python、mysql、java
<p>为什么不仅仅是自定义自定义自定义项</p>
<pre><code>import pyspark.sql.functions as F
from pyspark.sql.types import IntegerType
hour = F.udf(lambda x: x.hour, IntegerType())
hours = df.withColumn("hour", hour("datetime"))
hours.limit(5).toPandas()
</code></pre>
<p>我会给你这个:</p>
<p><a href="https://i.stack.imgur.com/8fZUU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8fZUU.png" alt="enter image description here"/></a></p>