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...
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. ...
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)>>> a[3, 6, 1, 5, 4, 2]>>> b = 'abcdef'>>> b ...
Python Modules Exercises Home ↩ Python Exercises Home ↩ Previous:Python module methods Exercise Home. Next:Write a Python program to select a random element from a list, set, dictionary (value) and a file from a directory.
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']
"""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') ...
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) ...
A quicker way to do it...Even the "faster" version is very inefficient since deleting an item from the middle of a list has to move all of the trailing items one place up. It is still O(n**2). Here is an O(n) algorithm. After it picks the element to remove, it replaces it...
python random random 模块位于Python标准库中 因此首先导入import random 部分函数功能介绍 一random.random() 生成0<=n<1随机浮点数 二random.unifrom(a,b) 生成指定范围内的浮点数,包含a,b 三random.randint(a,b) 生成指定范围整数,包含a,b.其中a为下限,b为上限。
shuffle runs a fold generating random numbers for each element of a list, then sort it and iterates over all elements to remove the generated random numbers. take runs in linear time. A possible improvement would be to iterate over only the first n elements after the sort, which would ...