如何使用键值从嵌套的JSON数据数组中提取最内层的值？

def extract_inner_values(data, key, values):
    if isinstance(data, dict):
        for k, v in data.items():
            if k == key:
                values.append(v)
            elif isinstance(v, (dict, list)):
                extract_inner_values(v, key, values)
    elif isinstance(data, list):
        for item in data:
            extract_inner_values(item, key, values)

# 示例JSON数据
json_data = {
    "data": [
        {
            "id": 1,
            "name": "John",
            "details": {
                "age": 25,
                "city": "New York"
            }
        },
        {
            "id": 2,
            "name": "Jane",
            "details": {
                "age": 30,
                "city": "London"
            }
        }
    ]
}

# 提取最内层的值
inner_values = []
extract_inner_values(json_data, "city", inner_values)
print(inner_values)  # 输出: ['New York', 'London']