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[Python] Python 函数参数是选 list 还是*arg 呢

发表于
def list_arg(*test_list:int):
    for i in test_list:
        print(i)

list_arg(*[1,2])

def list_arg(test_list:list[int]):
    for i in test_list:
        print(i)

list_arg([1,2])

之前一直是用的 list, 因为本来就是就 list,(不是 list 我就[int]包装一下),所以也没多想,今天看 nonebot 的时候看到有这种用法,想问问大家这俩种大家会怎么选呢, 在参数是

int|list[int]

的情况下

def deep_update(
    mapping: dict[K, Any], *updating_mappings: dict[K, Any]
) -> dict[K, Any]:
    """深度更新合并字典"""
    updated_mapping = mapping.copy()
    for updating_mapping in updating_mappings:
        for k, v in updating_mapping.items():
            if (
                k in updated_mapping
                and isinstance(updated_mapping[k], dict)
                and isinstance(v, dict)
            ):
                updated_mapping[k] = deep_update(updated_mapping[k], v)
            else:
                updated_mapping[k] = v
    return updated_mapping

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