是的，AWS Step Functions可以在CloudWatch中记录日志。

要启用AWS Step Functions的日志记录功能，您需要在创建或更新状态机时指定一个CloudWatch日志组。以下是一个创建状态机时如何指定日志组的示例代码：

import boto3

client = boto3.client('stepfunctions')

def create_state_machine(state_machine_definition, name, role_arn, log_group_name):
    response = client.create_state_machine(
        name=name,
        definition=state_machine_definition,
        roleArn=role_arn,
        loggingConfiguration={
            'level': 'ALL',
            'includeExecutionData': True,
            'destinations': [
                {
                    'cloudWatchLogsLogGroup': {
                        'logGroupArn': log_group_name
                    }
                }
            ]
        }
    )
    return response['stateMachineArn']

state_machine_definition = """
{
  "Comment": "A Hello World example of the Amazon States Language using a Pass state",
  "StartAt": "HelloWorld",
  "States": {
    "HelloWorld": {
      "Type": "Pass",
      "Result": "Hello, World!",
      "End": true
    }
  }
}
"""

name = 'MyStateMachine'
role_arn = 'arn:aws:iam::1234567890:role/MyRole'
log_group_name = 'arn:aws:logs:us-east-1:1234567890:log-group:MyLogGroup'

state_machine_arn = create_state_machine(state_machine_definition, name, role_arn, log_group_name)
print('State machine ARN:', state_machine_arn)

在上面的示例中，loggingConfiguration参数指定了日志级别为ALL，并且includeExecutionData设置为True以包括执行数据。destinations数组中的cloudWatchLogsLogGroup属性指定了要用于日志记录的CloudWatch日志组ARN。

请注意，您需要将log_group_name替换为您实际使用的CloudWatch日志组ARN。