Note: Thechoice()function returns a random element from the non-empty sequence. (Asequencecan be alist, string, ortuple.) If the list or sequence is empty will raiseIndexError(cannot choose from an empty sequence). Now, Let’s assume you have the following list of movies. This list con...
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)>...
参数sequence表示一个有序类型。# 这里要说明 一下:sequence在python不是一种特定的类型,而是泛指一系列的类型。# list, tuple, 字符串都属于sequence。print(random.choice("Python"))# yprint(random.choice(["JGood","is","a","handsome","boy"]))# JGoodprint(random.choice(("Tuple","List","Dict"...
"""Choose a random element from a non-empty sequence.""" return seq[int(self.random() * len(seq))] # raises IndexError if seq is empty def shuffle(self, x, random=None): """x, random=random.random -> shuffle list x in place; return None. Optional arg random is a 0-argument ...
python empty_list = [] try: chosen_element = random.choice(empty_list) except IndexError: print("Cannot choose from an empty sequence.") 多次选择: 如果你需要多次从同一个序列中随机选择元素,可以在一个循环中多次调用 random.choice()。 python results = [random.choice(lst) for _ in range(...
list, tuple, 字符串都属于sequence。有关sequence可以查看python手册数据模型这一章。下面是使用choice的一些例子: 代码如下: print random.choice("学习Python") print random.choice(["JGood", "is", "a", "handsome", "boy"]) print random.choice(("Tuple", "List", "Dict")) 1. 2. 3. random....
There's no choice(List) function, which in my experience is the second most frequently used random function in Python.Maybe we should add random module with the needed functions and a nice api for Seed(Int)?Member giacomocavalieri commented Aug 22, 2024 For that there's the prng package ...
sequence在python不是一种特定的类型,而是泛指一系列的类型。list, tuple, 字符串都属于sequence 源码: def choice(self, seq): """Choose a random element from a non-empty sequence.""" # raises IndexError if seq is empty return seq[self._randbelow(len(seq))] ...
("python")) # n# 随机取值listlst = ["one", "two", "three"]print(random.choice(lst)) # one# 随机取值tupletp = ("one", "two", "three")print(random.choice(tp)) # two# 取样print(random.sample("abcdefg", 3))# ['e', 'g', 'c']# 洗牌lst = [1, 2, 3, 4, 5,6]...
print ("Your lucky number is {}".format(luckynumber)) Choose a random item from a list from the following: cheese_types = ['brie', 'cheddar', 'feta'] random.choice cheese = random.choice(cheese_types) print ("Please try some {}".format(cheese))...