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Python下载安装完整指南

  • 2026-01-16 02:57:43
Python下载安装完整指南
Python作为当下最热门的编程语言之一，无论是数据分析、人工智能还是Web开发，都离不开它。今天就来手把手教大家如何正确安装Python，避开常见的坑。

一、下载Python安装包

官方下载地址：https://www.python.org/downloads/

1、版本选择建议

进入官网后，你会看到各种Python版本。这里给大家一个重要提醒：
不建议安装最新版本！
虽然新版本功能更强大，但可能会遇到以下问题：
第三方库（如NumPy、Pandas等）尚未适配，找不到匹配的安装包
部分开发工具或框架可能暂不支持
网上的教程大多基于稳定版本，新版本遇到问题不好找解决方案
推荐选择：次新的稳定版本，通常是倒数第2-3个大版本，兼容性最好。

2、选择对应的系统版本

根据你的操作系统选择合适的安装包：
Windows系统：选择"Windows installer (64-bit)"（64位系统）或"Windows installer (32-bit)"（32位系统）
macOS系统：选择"macOS 64-bit installer"
Linux系统：一般系统自带Python，也可选择源码包自行编译

二、安装步骤（Windows为例）

运行安装程序：双击下载的.exe文件
重要！勾选"Add Python to PATH"：这一步很关键，会自动配置环境变量，否则后续需要手动配置
选择安装方式：
等待安装完成
验证安装：
  • 打开命令提示符（Win+R，输入cmd）
  • 输入 python --version
  • 如果显示版本号，说明安装成功

三、常见问题

Q：提示"python不是内部或外部命令"？
A：说明环境变量未配置，需要重新安装并勾选"Add Python to PATH"
Q：要不要同时安装多个版本？
A：新手建议只装一个版本，避免混乱
好了，按照这个教程，你应该能顺利完成Python的安装。有问题欢迎留言讨论！
本文来自网友投稿或网络内容，如有侵犯您的权益请联系我们删除，联系邮箱：wyl860211@qq.com 。

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  140. /yingpanguazai/ssd/ssd1/www/yeyulingfeng.com/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000897s ] mysql:host=127.0.0.1;port=3306;dbname=no_yeyulingfeng;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001410s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.003339s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.006409s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001339s ]
  6. SELECT * FROM `set` [ RunTime:0.000871s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001342s ]
  8. SELECT * FROM `article` WHERE `id` = 461296 LIMIT 1 [ RunTime:0.000901s ]
  9. UPDATE `article` SET `lasttime` = 1768512998 WHERE `id` = 461296 [ RunTime:0.020622s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000573s ]
  11. SELECT * FROM `article` WHERE `id` < 461296 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000922s ]
  12. SELECT * FROM `article` WHERE `id` > 461296 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003805s ]
  13. SELECT * FROM `article` WHERE `id` < 461296 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002605s ]
  14. SELECT * FROM `article` WHERE `id` < 461296 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000698s ]
  15. SELECT * FROM `article` WHERE `id` < 461296 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000767s ]
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