pyspark将数组转换为循环中的字符串

from pyspark.sql import SparkSession
from pyspark.sql.functions import concat_ws

spark = SparkSession.builder.appName("Array to String").getOrCreate()

data = [("John", ["apple", "banana", "orange"]),
        ("Alice", ["grape", "melon"]),
        ("Bob", ["kiwi", "pineapple"])]

df = spark.createDataFrame(data, ["name", "fruits"])
df.show()

df = df.withColumn("fruits_str", concat_ws(", ", df.fruits))
df.show()

+-----+-------------------+
| name|             fruits|
+-----+-------------------+
| John|[apple, banana, o...|
|Alice|    [grape, melon]|
|  Bob|   [kiwi, pineapple]|
+-----+-------------------+

+-----+-------------------+-----------------+
| name|             fruits|      fruits_str|
+-----+-------------------+-----------------+
| John|[apple, banana, o...|apple, banana, o...|
|Alice|    [grape, melon]|     grape, melon|
|  Bob|   [kiwi, pineapple]|  kiwi, pineapple|
+-----+-------------------+-----------------+