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python知识卡片1--神秘的螺旋

  • 2026-03-26 06:23:24
python知识卡片1--神秘的螺旋

python知识卡片1--神秘的螺旋

python系列课程的知识点中会有一些编程的概念。
孩子们可能当堂课听懂了，但是课后一段时间就忘记了，我做了一些小卡片，用来当作上课的辅助教材。
一张小卡片就是一个小知识点的总结和使用方法的说明，让孩子能够根据这些卡片回忆起上课的内容。
这是我的之前文章--python人工智能--神秘的螺旋这节课中讲过的一些知识总结出来的。
点击下面链接就可以看文章啦！

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  1. CONNECT:[ UseTime:0.000597s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000609s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.009489s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000298s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000678s ]
  6. SELECT * FROM `set` [ RunTime:0.005785s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000781s ]
  8. SELECT * FROM `article` WHERE `id` = 481652 LIMIT 1 [ RunTime:0.002845s ]
  9. UPDATE `article` SET `lasttime` = 1774582090 WHERE `id` = 481652 [ RunTime:0.003850s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000383s ]
  11. SELECT * FROM `article` WHERE `id` < 481652 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002488s ]
  12. SELECT * FROM `article` WHERE `id` > 481652 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.006830s ]
  13. SELECT * FROM `article` WHERE `id` < 481652 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.017511s ]
  14. SELECT * FROM `article` WHERE `id` < 481652 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.018714s ]
  15. SELECT * FROM `article` WHERE `id` < 481652 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.042192s ]
0.203307s