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【编程上手】02.Python语言

  • 2026-08-18 23:11:46
【编程上手】02.Python语言

    在上一篇【编程上手】01.Lua语言中，小栈说过，学习编程语言，最重要的是要能快速上手，迅速得到第一个成果，然后一步一步地学习语法，同时及时实践，验证学到的知识。

    然后等到真的要用的时候(例如参加工作后接到第一个独立的项目)，再来学习或部署实际的开发环境和运行环境(比课本讲的要复杂得多的多，可能有人教，可能要上网查资料，现在还可以直接问AI)，完成试错，就一下子成为程序员和软件开发工程师了。

    今天，小栈跟大家一起看看，Python编程语言的上手。    

    Python是一种高级、通用、解释型编程语言，由荷兰籍程序员吉多·范罗苏姆于1991年发布。它以简洁优雅的语法著称，支持多范式编程（面向对象、函数式等），并拥有庞大且活跃的开源生态。其标准库与第三方库（如NumPy、Django、PyTorch）覆盖了从Web开发、自动化运维到数据科学、人工智能等几乎所有技术领域。
    Python语言具备跨平台特性，开发效率极高，覆盖人工智能全栈闭环，且可以很方便的用于电子表格的协同开发。从2021年8月开始，一直位列Tiobe编程语言排行榜的第一名。
    打开Python编程语言官网（https://www.python.org/）。
    点击官网主页上方导航栏的第二个“Downloads”按钮。
在打开的网页中，找到“Python 3.9.0 - Oct. 5, 2020”标题，点击“Windows x86-64 embeddable zip file”链接。
    解压缩下载的“python-3.9.0-embed-amd64.zip”压缩包。
    双击解压缩目录中的“python.exe”可执行文件，我们就打开了Python编程语言的REPL命令行交互式环境。
    我们在其中输入如下代码。
print("Hello World!")
    按回车键后，交互式环境会显示运行结果。
  这样我们就完成了我们的第一个Python编程语言程序。
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  139. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/runtime/temp/067d451b9a0c665040f3f1bdd3293d68.php ( 11.98 KB )
  140. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000578s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000708s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.009754s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000300s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000452s ]
  6. SELECT * FROM `set` [ RunTime:0.000187s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000489s ]
  8. SELECT * FROM `article` WHERE `id` = 509077 LIMIT 1 [ RunTime:0.000354s ]
  9. UPDATE `article` SET `lasttime` = 1787309703 WHERE `id` = 509077 [ RunTime:0.014989s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000228s ]
  11. SELECT * FROM `article` WHERE `id` < 509077 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000396s ]
  12. SELECT * FROM `article` WHERE `id` > 509077 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001094s ]
  13. SELECT * FROM `article` WHERE `id` < 509077 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000885s ]
  14. SELECT * FROM `article` WHERE `id` < 509077 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.005438s ]
  15. SELECT * FROM `article` WHERE `id` < 509077 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002311s ]
0.139601s