使用Python从无循环的JSON对象中提取嵌套项

import json

def extract_nested_items(data):
    items = []
    if isinstance(data, dict):
        for key, value in data.items():
            if isinstance(value, (dict, list)):
                items.extend(extract_nested_items(value))
            else:
                items.append((key, value))
    elif isinstance(data, list):
        for item in data:
            items.extend(extract_nested_items(item))
    return items

# 示例JSON数据
json_data = '''
{
    "name": "John",
    "age": 30,
    "address": {
        "street": "123 Street",
        "city": "New York"
    },
    "hobbies": ["reading", "coding"]
}
'''

# 解析JSON数据
data = json.loads(json_data)

# 提取嵌套项
nested_items = extract_nested_items(data)

# 打印提取结果
for key, value in nested_items:
    print(key, ":", value)

name : John
age : 30
street : 123 Street
city : New York
hobbies : reading
hobbies : coding