python列表中随机选择_如何在Python中从列表中随机选择一个项目？

python列表中随机选择

Python random module provides an inbuilt method choice() has an ability to select a random item from the list and other sequences. Using the choice() method, either a single random item can be chosen or multiple items. The below set of examples illustrate the behavior of choice() method.

Python 随机模块提供了一种内置方法choice() ，可以从列表和其他序列中选择一个随机项。使用choice()方法，可以选择一个随机项目或多个项目。下面的示例集说明了choice()方法的行为。

Syntax:

句法：

    random.choice(sequence)

Here, sequence can be a list, set, dictionary, string or tuple.

在这里，序列可以是列表，集合，字典，字符串或元组。

Example 1: Choose a single item randomly from the list

示例1：从列表中随机选择一个项目

>>> import random
>>> test_list = ['include_help', 'wikipedia', 'google']
>>> print(random.choice(test_list))
wikipedia
>>> print(random.choice(test_list))
google
>>> print(random.choice(test_list))
wikipedia
>>>

Example 2: Choose multiple items randomly from the list

示例2：从列表中随机选择多个项目

In order to select multiple items from list, random module provides a method called choices.

为了从列表中选择多个项目，随机模块提供了一种称为choices的方法。

>>> import random
>>> print(random.choices(test_list, k=2))
['wikipedia', 'include_help']
>>> print(random.choices(test_list, k=1))
['google']
>>> print(random.choices(test_list, k=3))
['google', 'google', 'google']
>>>