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README
Apache-2.0

Python 基础入门

前言

整理一些 Python基础入门教程,让Python小白可以了解Python起源、熟悉Python解释器,编辑器安装下载、知道一些PyCharm常用配置及快捷命令,并介绍一些Python基础语法,最后多个Python实战小例子带你熟悉 Python 程序设计。下文中的每一个标题都有链接对应相关知识点文章。

最近我会一直维护这个项目,大家有什么建议都可以本项目中评论或提 Issues

项目地址:https://gitee.com/huiDBK/python-basic


网上有很多Python基础教程,而且比你的好,你为什么还要做呢?

为我自己,为让自己的基础更加扎实,为因看到我的文章而有所收获的人,为每一位Python学习者而分享。每个人都有着不同的信息差,望能帮助到Python学习者。


一、认识 Python

很多人学习 Python 可能是因为某一个 Python做的动画、Python小游戏、网上的标题党,或者Python广告等无疑它们是能让你产生很大的兴趣,但学习任何一门技术,都不能太浮躁,应该有着自己的 学习目标、学习路线,学习方法。不然每天泡着网络,东Copy、西粘贴、学到的东西都是碎片化的知识。

因此我们这学习Python的第一篇是追溯Python的起源 —— 认识Python。正所谓喝水不忘挖井人。


二、Python 环境的搭建与安装

学习Python,Python解释器少不了下载,不然写的Python代码都没谁认识。


三、我的第一个 Python 程序

在学习多门语言时,第一个案例大部分都是输出 hello world。来康康 我的第一个Python程序


四、PyCharm 下载与安装

Python 程序,PyCharm 这个 集成开发环境工具 是提升效率的好帮手,就是打开项目有点慢,如果不习惯可以暂时使用记事本进行编写或者下载一些轻量级的文本编辑器,例如:

  • Sublime Text
  • VSCode
  • NotePad ++

4.1 PyCharm 使用介绍及常用配置

创建 Python 项目、配置窗口主题、设置字体大小、管理项目 Python 解释器,配置Python文件、代码模板


4.2 PyCharm 常用开发快捷汇总

格式化代码、复制当前行到下一行、收缩\展开代码块、打开 Git 提交面板等常用开发快捷键。


五、Python 基本语法速览

在真正学习Python语法之前,先带大家看看Python的基本语法,对Python语法有一个整体的印象,这样有助于对后面学习的理解。


六、Python 代码注释

添加良好的代码注释,是程序员的基本素养,能快速了解其含义,提高代码的可读性。


七、Python 运算符


八、Python 变量的基本使用

程序就是用来处理数据的,而变量就是用来存储数据的。


九、Python 变量的命名

混乱或错误的命名不仅让我们对代码难以理解,更糟糕的是,会误导我们的思维,导致对代码的理解完全错误。相反,良好的命名,则可以让我们的代码非常容易读懂,也能向读者正确表达事物以及逻辑的本质,从而使得代码的可维护性就大大增强。


十、Python if 判断语句

生活中的判断几乎是无所不在的,我们每天都在做各种各样的选择,如果这样?如果那样?……

一起来康康Python中如何使用 if 语句进行条件判断。


十一、Python 循环

Python 语法中有两类循环

  • while 循环
  • for 循环

并介绍关键字 continuebreak 在循环中的作用。


十二、Python 函数

所谓函数,就是把 具有独立功能的代码块 组织为一个小模块,在需要的时候 调用

**函数的作用:**在开发程序时,使用函数可以提高编写的效率以及代码的 重用


十三、Python 字符串 str

现实生活中文字随处可见,编程语言中则用字符串来表示,字符串是 Python 中最常用的数据类型之一。


十四、Python 列表 list

list(列表) 是 Python 中使用 最频繁 的数据类型,在其他语言中通常叫做 数组


十五、Python 元组 tuple

tuple(元组)与列表类似,不同之处在于元组的 元素不能修改


十六、Python 字典 dict

dict(字典) 是 除列表以外 Python 之中 最灵活 的数据类型

字典同样可以用来 存储多个数据,通常用于存储 描述一个 物体 的相关信息


十七、Python 集合 set

set(集合)虽然用的很少,但它是一个无序的不重复元素序列,用来简单的去重挺方便的。


十八、Python变量的存储

  • 变量 和 数据 都是保存在 内存 中的
  • Python函数的参数传递 以及 返回值 都是靠 引用 传递的

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