取嵌套字典中的通用值

def get_value(data, key):
    if isinstance(data, dict):
        for k, v in data.items():
            if k == key:
                return v
            elif isinstance(v, dict):
                result = get_value(v, key)
                if result is not None:
                    return result
    elif isinstance(data, list):
        for item in data:
            result = get_value(item, key)
            if result is not None:
                return result
    return None