如何使用Python复制不同JSON文件的正文并将其全部写入一个文件？

import json
import os

def copy_json_content(source_file, target_file):
    with open(source_file, 'r') as f:
        data = json.load(f)
        with open(target_file, 'a') as target:
            json.dump(data, target)
            target.write('\n')

def copy_all_json_files(source_dir, target_file):
    for root, dirs, files in os.walk(source_dir):
        for file in files:
            if file.endswith('.json'):
                source_file = os.path.join(root, file)
                copy_json_content(source_file, target_file)

source_dir = '/path/to/source/directory'
target_file = '/path/to/target/file.json'
copy_all_json_files(source_dir, target_file)