Use therandom.choice()method: Thechoice()function takes one argument: the no-empty sequence like a list, tuple, string, or any iterable like range.Pass your list as an argument, and It will return a random element from it. Note: Thechoice()function returns a random element from the non...
city_list = ['New York','Los Angeles','Chicago','Houston','Philadelphia']print("Pick 2 Random element from list:", random.sample(city_list,2)) random.choices() random.choices(population, weights=None, *, cum_weights=None, k=1) 如果要从序列中随机选择多个元素,请使用此方法。在Python 3....
Angeles', 'Chicago', 'Houston', 'Philadelphia']print("Random element from list:", random.choice(city_list))random.sample(population, k)要从列表或任何序列中随机选择多个元素时，请使⽤此功能。import random city_list = ['New York', 'Los Angeles', 'Chicago', 'Houston', 'Philadelphia']
6. shuffle(x, random=None) method of random.Random instance Shuffle list x in place, and return None. # 给列表随机排序,俗称“洗牌”函数>>> random.shuffle([1,2,3,4,5,6])>>> a = [1,2,3,4,5,6]>>> random.shuffle(a)>>> a[4, 6, 5, 2, 3, 1]>>> random.shuffle(a)>...
random_element = random.choice(my_list) print("随机选择的元素:", random_element) 4. random.shuffle(x) random.shuffle(x)函数用于将序列x中的元素随机排列,打乱原有顺序。 import random my_list = [1, 2, 3, 4, 5] random.shuffle(my_list) ...
ExampleGet your own Python Server Return a random element from a list: importrandom mylist = ["apple","banana","cherry"] print(random.choice(mylist)) Try it Yourself » Definition and Usage Thechoice()method returns a randomly selected element from the specified sequence. ...
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"""Choose a random element from a non-empty sequence.""" 选择一个随机的元素从一个有虚的集合中,在python中有序的集合有哪些 “字符串,列表,元祖” 字典和 集合都是无效的 try: i = self._randbelow(len(seq)) except ValueError: raise IndexError('Cannot choose from an empty sequence') ...
Here is an O(n) algorithm. After it picks the element to remove, it replaces it with the element from the end of the list, avoiding the costly copy of all the trailing elements. size=len(data) whilesize: size=size-1 index=whrandom.randint(0,size) ...
Imagine I wanted to extract, or access, the first element of my list. 我要做的第一件事是键入列表的名称,然后我需要方括号。 The first thing for me to do is type the name of the list,then I need my square brackets. 现在请记住,在Python中,索引从零开始。 Now remember, in Python, indexe...