递归实现对字典key赋值

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方法说明

递归实现对字典相应的key赋值。支持对dict[list]或dict{dict}类型获取key，并对key赋值。

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方法实现

def give_target_value(key: str, val: all, dic: dict) -> dict:
    """
    递归dic查找目标key，并对key赋值val
    :param key: 目标key值
    :param dic: 字典
    :return: dic[key]
    """
    if not isinstance(dic, dict):  # 对传入数据进行格式校验
        return dic
    if key in dic.keys():
        if not dic[key]:    # 仅当key的值为空时赋值
            dic[key] = val
    for value in dic.values():
        if not value:  # 传入数据不符合则对其value值进行遍历
            continue
        if isinstance(value, dict):
            ret = give_target_value(key, val, value)  # 传入数据的value值是字典，则直接调用自身
            if ret is not None:
                return ret
        elif isinstance(value, (list, tuple)):
            ret = _give_value(key, val, value)  # 传入数据的value值是列表或者元组，则调用_get_value
            if ret is not None:
                return ret


def _give_value(key: str, val: all, val_list: list):
    """
    :param key: 目标key值
    :param val_list: JSON数据
    :return:
    """
    for val_ in val_list:
        if isinstance(val_, dict):
            ret = give_target_value(key, val, val_)  # 传入数据的value值是字典，则调用get_target_value
            if ret is not None:
                return ret
        elif isinstance(val_, (list, tuple)):
            ret = _give_value(key, val, val_)  # 传入数据的value值是列表或者元组，则调用自身
            if ret is not None:
                return ret