我们可以使用print语句将其输出到控制台: print("Randomly picked fruit:",random_fruit) 1. 至此,我们已经完成了整个"Python List Random Pick"的实现。下面是完整的代码示例: importrandom fruits=['apple','banana','orange','kiwi','watermelon']random_fruit=random.choice(fruits)print("Randomly picked fru...
Let’s think about a simple example where we have a set of numbers contained in a list,and we would like to pick one of those numbers uniformly at random. 在本例中,我们需要使用的函数是random.choice,在括号内,我们需要一个列表。 The function we need to use in this case is random.choice...
Modulerandomin the standard Python library offers a wealth of possibilities for generating and using pseudo-random numbers, but it does not offer this specific functionality, so we must code it as a function of our own: import random def random_pick(some_list, probabilities): x = random.unifo...
random.randrange(1, 10)#【1, 10】随机返回一个整数,会出现前,不会出现后面的数据,相当于range(), 不顾后端。 random.uniform(1, 10)# 【1,10】 返回随机一个小数,不含两端 random.choice(item)# 单例集合随机选择1个 random.sample(item, n)# 单例集合随机选择n个 random.shuffle(item)# 洗牌单列...
First, let’s create a pandas dataframe with 100,000 rows of fake data: import pandas as pd import numpy as np # Set random seed np.random.seed(123) data = {'Column1': np.random.randint(0, 10, size=100000), 'Column2': np.random.choice(['A', 'B', 'C'], size=100000), '...
import random class Solution(object): def __init__(self, nums): """ :type nums: List[int] """ self.data = {} for index, num in enumerate(nums): self.data.setdefault(num, []).append(index) def pick(self, target): """ :type target: int :rtype: int """ indexes = self....
defspam():"""This is a multiline comment to help explain what thespam()functiondoes."""print('Hello!') 索引和切片字符串 字符串和列表一样使用索引和切片。您可以将字符串'Hello, world!'视为一个列表,并将字符串中的每个字符视为一个具有相应索引的项。
>>> import random >>> random.choice ( ['apple', 'pear', 'peach', 'orange', 'lemon'] ) 'lemon' 洗牌: >>> import random >>> items = [1, 2, 3, 4, 5, 6] >>> random.shuffle(items) >>> items [3, 2, 5, 6, 4, 1]...
Note: A statement in Python is a unit of code. An expression is a special statement that can be evaluated to some value. For example, 1 + 2 is an expression that evaluates to the value 3, while number = 1 + 2 is an assignment statement that doesn’t evaluate to a value. Although...
Basically, this method is just a simple wrapper around uuid.uuid4(). :param unique: Generate only unique values. :param length: Length of string. Default range is (min=16, max=128). :return: Random string. """ifunique:returnstr(uuid.uuid4().hex)iflengthisNone: ...