如何删除PySpark数据帧中字符串中的特定字符？

from pyspark.sql import SparkSession
from pyspark.sql.functions import expr, regexp_replace

spark = SparkSession.builder.appName("RemoveCharacter").getOrCreate()

data = [("Alice",), ("Bob",), ("Cathy",)]
columns = ["name"]
df = spark.createDataFrame(data, columns)

# 使用expr函数
df = df.withColumn("name_without_spaces", expr("regexp_replace(name, ' ', '')"))

# 或者使用regexp_replace函数
df = df.withColumn("name_without_spaces", regexp_replace("name", " ", ""))

df.show()

+-----+-------------------+
| name|name_without_spaces|
+-----+-------------------+
|Alice|          Alice|
|  Bob|             Bob|
|Cathy|         Cathy|
+-----+-------------------+