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《Python编程:从入门到实践》可视化学习14

  • 2026-08-21 01:35:01
《Python编程:从入门到实践》可视化学习14

《Python编程：从入门到实践》可视化学习14

以“WEB应用程序”项目为例：
1、浏览器、Django应用和数据库怎样组成一个系统？
2、虚拟环境、项目、应用和数据库分别解决什么问题？
3、修改模型后，迁移怎样改变数据库结构？
4、一个URL请求怎样经过视图、模型和模板返回页面？
5、模板继承怎样避免每个页面重复公共结构？
6、表单的GET和POST路径为什么不同？
7、注册、登录、注销和访问限制怎样构成身份状态机？
8、用户为什么只能看到和修改自己的数据？
9、本地应用怎样经过样式、版本管理、配置和部署变成公共服务？
#python学习 #python入门

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  1. CONNECT:[ UseTime:0.000990s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001457s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.004370s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000684s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001268s ]
  6. SELECT * FROM `set` [ RunTime:0.000612s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001542s ]
  8. SELECT * FROM `article` WHERE `id` = 511544 LIMIT 1 [ RunTime:0.003584s ]
  9. UPDATE `article` SET `lasttime` = 1787281906 WHERE `id` = 511544 [ RunTime:0.041848s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000644s ]
  11. SELECT * FROM `article` WHERE `id` < 511544 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001259s ]
  12. SELECT * FROM `article` WHERE `id` > 511544 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001144s ]
  13. SELECT * FROM `article` WHERE `id` < 511544 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.017942s ]
  14. SELECT * FROM `article` WHERE `id` < 511544 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002916s ]
  15. SELECT * FROM `article` WHERE `id` < 511544 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.020103s ]
0.272567s