choice()方法从一个列表,元组或字符串返回一个随机项。
语法
以下是choice()方法的语法:
choice( seq )
注意:此函数是无法直接访问的,所以我们需要导入random模块,然后我们需要使用random对象来调用这个函数。
参数
- seq -- 这可能是一个列表,元组或字符串...
返回值
该方法返回一个随机项。
例子
下面的例子显示了choice()方法的使用。
#!/usr/bin/python import random print "choice([1, 2, 3, 5, 9]) : ", random.choice([1, 2, 3, 5, 9]) print "choice('A String') : ", random.choice('A String')
当我们运行上面的程序,它会产生以下结果:
choice([1, 2, 3, 5, 9]) : 2 choice('A String') : n

The article discusses Python's new "match" statement introduced in version 3.10, which serves as an equivalent to switch statements in other languages. It enhances code readability and offers performance benefits over traditional if-elif-el

Exception Groups in Python 3.11 allow handling multiple exceptions simultaneously, improving error management in concurrent scenarios and complex operations.

Function annotations in Python add metadata to functions for type checking, documentation, and IDE support. They enhance code readability, maintenance, and are crucial in API development, data science, and library creation.

The article discusses unit tests in Python, their benefits, and how to write them effectively. It highlights tools like unittest and pytest for testing.

Article discusses access specifiers in Python, which use naming conventions to indicate visibility of class members, rather than strict enforcement.

Article discusses Python's \_\_init\_\_() method and self's role in initializing object attributes. Other class methods and inheritance's impact on \_\_init\_\_() are also covered.

The article discusses the differences between @classmethod, @staticmethod, and instance methods in Python, detailing their properties, use cases, and benefits. It explains how to choose the right method type based on the required functionality and da

InPython,youappendelementstoalistusingtheappend()method.1)Useappend()forsingleelements:my_list.append(4).2)Useextend()or =formultipleelements:my_list.extend(another_list)ormy_list =[4,5,6].3)Useinsert()forspecificpositions:my_list.insert(1,5).Beaware


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

SublimeText3 English version
Recommended: Win version, supports code prompts!

SublimeText3 Linux new version
SublimeText3 Linux latest version

Notepad++7.3.1
Easy-to-use and free code editor
