擅长:python、mysql、java
<p>您可以使用和<code>sum</code>:</p>
<pre><code>from pyspark.sql.functions import sum
df_result = df.select(sum("previous").alias("previous_total"),
sum("current").alias("current_total"))
df_result.show()
+ + +
|previous_total|current_total)|
+ + +
| 3| 4|
+ + +
</code></pre>