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Python私房笔记:从0到1教会你开始(第一篇 环境安装)

  • 2026-07-02 19:26:46
Python私房笔记:从0到1教会你开始(第一篇 环境安装)

    欢迎来到 罐子的实验室

当前的语言趋势其实很明显:技术环境更迭太快,这两年 AI 大模型和各种自动化工具彻底爆火。但在这一轮浪潮里,你会发现顶层的全能胶水依然是 Python。它不再只是程序员的专属工具,而是变成了自动化、数据清洗、安全测试甚至是 AI 调优的通用入场券。

学 Python 不是为了去死记硬背刻板语法,而是为了在面对繁琐、重复的工作时,多一双能帮你高效率解决问题的“手”。最有效的办法就是直接从最核心的底层逻辑切入,边配环境边跑代码。


一、 什么是编程?

  • 编程
    :用代码编写程序,将人类的逻辑拆解成指令指挥计算机工作。
  • 编程语言
    :与计算机沟通的语法规则。计算机底层只认电信号,我们必须通过特定语法规则的语言(如 Python)来和它沟通。

📊 编程语言分类

  • 编译型
    (如 C语言Go语言
  • 原理
    :在程序运行前,一次性把源代码整体编译成机器码。
  • 特点
    :执行效率很高,但平台依赖性比较高。
  • 解释型
    (如 PythonJavaScriptRuby
  • 原理
    :程序运行时,由解释器逐行对源代码进行编译和运行。
  • 特点
    :执行效率相对较低,但跨平台极度灵活。

二、 什么是 Python?

Python 是一个叫龟叔(吉多·范罗苏姆)的荷兰老头在 1989 年为了打发圣诞节假期写的。

  • 核心擅长领域
    :网络爬虫、自动化运维/脚本、科学计算、人工智能(AI)。

三、 实验室装备:Python 环境搭建与调用

要让你的电脑跑起代码,需要两样东西:解释器(大脑内核) 与 编辑器(搬砖工具)

1. Python 解释器安装

  • 官网地址
    :https://www.python.org/
  • 环境验证
    :打开电脑终端(cmd或者powershell),输入 python 并回车。如果看到版本号和 >>> 符号,说明安装成功。
  • 如何调用 Python 文件
    :在 cmd 终端里直接输入:
python 文件路径# 例如:python D:\lab\test.py

2. 编写 Python 的工具(编辑器)

写代码不能用系统自带的记事本(没有语法高亮和缩进提示)。

  • VS Code
    :微软出品,轻量级、颜值高。
  • Jupyter Notebook
    :适合数据分析,写一行跑一行。
  • PyCharm(强烈推荐)
    :JetBrains 出品的工业级全能利器,写 Python 最专业的工具。
  • 官网下载
    :PyCharm 官网下载(萌新直接选择免费的 Community(社区版) 即可)。
  • 以上只需一个即可

尾声

如果在配置环境时遇到错误,直接在评论区留言就可以

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  1. CONNECT:[ UseTime:0.000490s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000749s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000333s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.001694s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000500s ]
  6. SELECT * FROM `set` [ RunTime:0.000187s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000622s ]
  8. SELECT * FROM `article` WHERE `id` = 502507 LIMIT 1 [ RunTime:0.000404s ]
  9. UPDATE `article` SET `lasttime` = 1783011864 WHERE `id` = 502507 [ RunTime:0.000693s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000225s ]
  11. SELECT * FROM `article` WHERE `id` < 502507 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000379s ]
  12. SELECT * FROM `article` WHERE `id` > 502507 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001007s ]
  13. SELECT * FROM `article` WHERE `id` < 502507 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001172s ]
  14. SELECT * FROM `article` WHERE `id` < 502507 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001234s ]
  15. SELECT * FROM `article` WHERE `id` < 502507 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000971s ]
0.080398s