Python3提供了一个名为random的模块,可以通过各种方法生成随机数、随机选择等。本篇文章将详细介绍Python3的random模块,包括常用函数的使用示例、应用场景,以及如何利用这些函数来解决实际问题。 1. random模块简述 random模块是Python标准库的一部分,提供了一系列生成随机数和选择的函数。这些函数可以用于模拟、游戏、抽样...
在Python 中,random 是一个内置模块,提供了各种生成随机数的功能。然而,在导入和使用该模块时,你需要确保你正在调用的是模块中的特定函数,而不是模块本身。 错误示例 假设你尝试像这样使用 random 模块: import random random() # 这里将出现错误 这段代码会抛出 TypeError: 'module' object is not callable 错误...
print(random.randint(1, 3)) # [1, 3] print(random.randrange(1, 3)) # [1, 3) print(random.choice([1, '23',[4, 5]])) # 23 print(random.sample([1, '23', [4,5]], 2)) # [[4, 5], '23'] print(random.uniform(1, 3)) # 2.4493238844781944 # item = [1, 3, 5, ...
官网:https://docs.python.org/zh-cn/3.9/library/random.html#module-random importrandomprint(random.sample(range(100),5))# [19, 8, 96, 70, 88]print(random.sample([1,2,3,4,5,6],3))# [3, 1, 5]print(random.sample(['a','b','c','d','e'],3))# ['a', 'd', 'c']pr...
PythonRandom Module ❮ PreviousNext ❯ Python has a built-in module that you can use to make random numbers. Therandommodule has a set of methods: MethodDescription seed()Initialize the random number generator getstate()Returns the current internal state of the random number generator ...
$ python3 random_state.py No state.dat,seeding0.1340.8470.764After saving state:0.2550.4950.449$ python3 random_state.py Found state.dat,initializing random module0.2550.4950.449After saving state:0.6520.7890.094 随机整数 random()生成浮点数。可以将结果转换为整数, 但使用randint()直接生成整数更方便。
File "<stdin>", line 1, in <module> File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\random.py", line 220, in randint return self.randrange(a, b+1) File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\random.py", line 184, in randrange ...
Help on method expovariate in module random:expovariate(lambd) method of random.Random instanceExponential distribution.lambd is 1.0 divided by the desired mean. It should benonzero. (The parameter would be called "lambda", but that isa reserved word in Python.) Returned values range from 0 ...
# ['c', 'python', 'java', 'c++'] 后面的参数random我试着加上,但好像也没有什么作用,只是在输出的列表后加了:<module 'random' from 'C:\\ProgramData\\Anaconda3\\lib\\random.py'> 7.random.sample(sequence,k) 从指定序列中随机获取指定长度的片段。sample函数不会修改原有的序列。
$ python numpy.py Traceback (most recent call last): File "/home/me/numpy.py", line 1, in <module> import numpy as np File "/home/me/numpy.py", line 3, in <module> np.array([1, 2, 3]) ^^^ AttributeError: module 'numpy' has no attribute 'array' (consider renaming '...