def random_door(): # this method returns a random number from [1,2,3] # Parameters # there is no input # Returns # an integer, which is either 1, 2 or 3 # write your code below this line。请帮我完成需要填写的代码

import random

def random_door():
    return random.randint(1, 3)

这段代码使用了 Python 自带的 `random` 模块中的 `randint()` 函数，该函数可以返回一个指定范围内的随机整数，包括指定的上下限。在这里，我们将下限设为 1，上限设为 3，以生成一个随机的 1、2 或 3。

相关问题

this method returns a random number from [1,2,3] Parameters there is no input Returnsan integer, which is either 1, 2 or 3

Here's a simple implementation in Python that satisfies the requirements you specified:

import random

def get_random_number():
    return random.choice([1, 2, 3])

This code imports the `random` module and uses the `choice()` method to randomly select an integer from the `[1, 2, 3]` list. The function takes no inputs and always returns an integer that is either 1, 2, or 3.