如何在PySpark程序中将变量或数据帧打印到控制台？

from pyspark.sql import SparkSession

# 创建SparkSession
spark = SparkSession.builder.getOrCreate()

# 定义一个变量
data = [1, 2, 3, 4, 5]

# 将变量转换为DataFrame
df = spark.createDataFrame(data, IntegerType())

# 打印DataFrame
df.show()

from pyspark.sql import SparkSession

# 创建SparkSession
spark = SparkSession.builder.getOrCreate()

# 读取数据为数据帧
df = spark.read.csv("data.csv", header=True, inferSchema=True)

# 打印数据帧
df.show()

from pyspark.sql import SparkSession

# 创建SparkSession
spark = SparkSession.builder.getOrCreate()

# 读取数据为数据帧
df = spark.read.csv("data.csv", header=True, inferSchema=True)

# 将数据收集到驱动程序并以列表形式返回
data_list = df.collect()

# 打印列表
for row in data_list:
    print(row)