是的，AWS Lambda 可以根据对象的 S3 存储桶路径决定在 Step Functions 中执行。可以使用以下代码示例来实现这个步骤：

首先，创建 State Machine 并定义 S3 存储桶对象：

{
  "Comment": "An example of the Amazon States Language using object key to trigger a Lambda Function",
  "StartAt": "WaitForNewObject",
  "States": {
    "WaitForNewObject": {
      "Type": "Wait",
      "Seconds": 30,
      "Next": "ProcessNewObject"
    },
    "ProcessNewObject": {
      "Type": "Task",
      "Resource": "arn:aws:lambda:us-west-2:123456789012:function:MyLambdaFunction",
      "Parameters": {
        "Bucket.$": "$.Records[0].s3.bucket.name",
        "ObjectKey.$": "$.Records[0].s3.object.key"
      },
      "End": true
    }
  }
}

接下来，定义 Lambda 函数来处理事件：

import json
import boto3

def lambda_handler(event, context):
    # Get the bucket name and object key from the S3 event
    bucket = event['Bucket']
    key = event['ObjectKey']

    # Do something with the object
    # ...

    return {
        'statusCode': 200,
        'body': json.dumps('Object processed successfully')
    }

然后，配置 S3 存储桶触发器来触发 State Machine：

import boto3

client = boto3.client('s3')
response = client.put_bucket_notification_configuration(
    Bucket='example-bucket',
    NotificationConfiguration={
        'LambdaFunctionConfigurations': [
            {
                'LambdaFunctionArn': 'arn:aws:states:us-west-2:123456789012:stateMachine:MyStateMachine',
                'Events': [
                    's3:ObjectCreated:*',
                ],
                'Filter': {
                    'Key': {
                        'FilterRules': [
                            {
                                'Name': 'prefix',