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动手做⑤‖python每日一练

  • 2026-02-11 12:36:12
动手做⑤‖python每日一练

编写一个程序:

打印正整数数字。


逐步解析

1.创建一个无限循环，因为True是常量真值，条件始终成立

2.try-except异常处理

3.条件判断：if-else语句，根据条件执行不同的代码块。

4.循环控制：break语句，用于跳出当前循环。


学习要点

while循环：当条件为真时重复执行代码块

无限循环：使用 while True:创建永不停止的循环（直到遇到break)

循环控制：break语句用于提前终止循环

if-else语句：根据条件执行不同的代码分支

比较运算符：==用于检查相等性


如果你是和我一样是零基础新手，一遍记不住，记得‖收藏 转发，后面再慢慢照着练哦！我们一起加油！

奔跑吧＆AGI‖2026/2/11

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  1. CONNECT:[ UseTime:0.000597s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
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  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000476s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000547s ]
  6. SELECT * FROM `set` [ RunTime:0.003329s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000772s ]
  8. SELECT * FROM `article` WHERE `id` = 474941 LIMIT 1 [ RunTime:0.001193s ]
  9. UPDATE `article` SET `lasttime` = 1770786653 WHERE `id` = 474941 [ RunTime:0.015893s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.006248s ]
  11. SELECT * FROM `article` WHERE `id` < 474941 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.005882s ]
  12. SELECT * FROM `article` WHERE `id` > 474941 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.006594s ]
  13. SELECT * FROM `article` WHERE `id` < 474941 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.128516s ]
  14. SELECT * FROM `article` WHERE `id` < 474941 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.101321s ]
  15. SELECT * FROM `article` WHERE `id` < 474941 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.115545s ]
0.489369s