Python -迭代嵌套的JSON数据问题

def find_value(data, target_key):
    if isinstance(data, dict):
        for key, value in data.items():
            if key == target_key:
                return value
            elif isinstance(value, (dict, list)):
                result = find_value(value, target_key)
                if result is not None:
                    return result
    elif isinstance(data, list):
        for item in data:
            result = find_value(item, target_key)
            if result is not None:
                return result
    return None

# 示例数据
json_data = {
    "name": "John",
    "age": 30,
    "address": {
        "street": "123 ABC Street",
        "city": "New York"
    },
    "friends": [
        {
            "name": "Alice",
            "age": 25
        },
        {
            "name": "Bob",
            "age": 35
        }
    ]
}

# 查找名为"city"的值
result = find_value(json_data, "city")
print(result)  # 输出：New York

from jsonpath_ng import jsonpath, parse

# 示例数据
json_data = {
    "name": "John",
    "age": 30,
    "address": {
        "street": "123 ABC Street",
        "city": "New York"
    },
    "friends": [
        {
            "name": "Alice",
            "age": 25
        },
        {
            "name": "Bob",
            "age": 35
        }
    ]
}

# 解析JSON路径
jsonpath_expr = parse("$.address.city")

# 提取匹配的值
result = [match.value for match in jsonpath_expr.find(json_data)]
print(result)  # 输出：['New York']