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自学python日志26-6-07

  • 2026-07-02 13:55:35
自学python日志26-6-07

今天，学习了两个板块的内容。

第一个板块是三目运算符的内容，这个其实就是if-else语句的简写方式，理解也比较容易。需要注意的是，else后面不能进行赋值操作。

第二个板块内容是运算符，主要是算数运算符、赋值运算符、复合赋值运算符、比较运算符和逻辑运算符。理解比较容易，逻辑也很清楚，关键还是一个熟练度的问题。

感觉应该多敲一敲代码了。

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 。

第2章:Python基础语法 - 编程基石

Python | 绘制 Himawari-9 真彩图

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  1. CONNECT:[ UseTime:0.000484s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000823s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000368s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.005941s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000632s ]
  6. SELECT * FROM `set` [ RunTime:0.001477s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000669s ]
  8. SELECT * FROM `article` WHERE `id` = 497987 LIMIT 1 [ RunTime:0.012671s ]
  9. UPDATE `article` SET `lasttime` = 1783052318 WHERE `id` = 497987 [ RunTime:0.015553s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.028523s ]
  11. SELECT * FROM `article` WHERE `id` < 497987 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001809s ]
  12. SELECT * FROM `article` WHERE `id` > 497987 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000574s ]
  13. SELECT * FROM `article` WHERE `id` < 497987 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.005048s ]
  14. SELECT * FROM `article` WHERE `id` < 497987 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.028435s ]
  15. SELECT * FROM `article` WHERE `id` < 497987 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000983s ]
0.196275s