


1.1 Python objects
Python has many built-in object types, including numbers, strings, lists, sets, tuples, dictionaries, etc. In Python, everything is an object
pickle--In Python, if there are some objects that need to be stored persistently without losing the type and data of the object, the data needs to be serialized. After serialization, when it needs to be used, it will be restored to the original data. The serialization process becomes pickle
One of the built-in data types of Python is a list: list.
list is an ordered collection.
A list consists of a series of elements arranged in a specific order. Represented by [ ]. The data types of the elements in the
list can also be different, for example:
##>>> L = ['Apple', 123, True] |
Insert
insert() Specify the index and value of the new element.
>>> classmates ['Michael', 'Jack', 'Bob', 'Tracy', 'Adam'] |
1.1. To delete del, you need to know the
indexposition del ABC[0]1.2. To delete the element at the end of the list, use the pop() method.
1.3. To delete the element at the specified position, use the pop(i) method, where i is the index position.
1.4. Use the pop() method to delete elements (pop), and then use the delete value.
1.5. Delete elements according to
valueremove()2.2.4 Modify elements
To replace an element with another element, you can Directly assign the value to the corresponding index position.
>>> len(s) 4 |
The above is the detailed content of What knowledge do you need to master to learn the basics of Python?. For more information, please follow other related articles on the PHP Chinese website!

本篇文章给大家带来了关于Python的相关知识,其中主要介绍了关于Seaborn的相关问题,包括了数据可视化处理的散点图、折线图、条形图等等内容,下面一起来看一下,希望对大家有帮助。

本篇文章给大家带来了关于Python的相关知识,其中主要介绍了关于进程池与进程锁的相关问题,包括进程池的创建模块,进程池函数等等内容,下面一起来看一下,希望对大家有帮助。

本篇文章给大家带来了关于Python的相关知识,其中主要介绍了关于简历筛选的相关问题,包括了定义 ReadDoc 类用以读取 word 文件以及定义 search_word 函数用以筛选的相关内容,下面一起来看一下,希望对大家有帮助。

VS Code的确是一款非常热门、有强大用户基础的一款开发工具。本文给大家介绍一下10款高效、好用的插件,能够让原本单薄的VS Code如虎添翼,开发效率顿时提升到一个新的阶段。

本篇文章给大家带来了关于Python的相关知识,其中主要介绍了关于数据类型之字符串、数字的相关问题,下面一起来看一下,希望对大家有帮助。

pythn的中文意思是巨蟒、蟒蛇。1989年圣诞节期间,Guido van Rossum在家闲的没事干,为了跟朋友庆祝圣诞节,决定发明一种全新的脚本语言。他很喜欢一个肥皂剧叫Monty Python,所以便把这门语言叫做python。

本篇文章给大家带来了关于Python的相关知识,其中主要介绍了关于numpy模块的相关问题,Numpy是Numerical Python extensions的缩写,字面意思是Python数值计算扩展,下面一起来看一下,希望对大家有帮助。


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

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

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

Dreamweaver Mac version
Visual web development tools

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

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft
