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AI基础学习笔记:Python中常用“pass 关键字”

  • 2026-03-18 09:15:35
AI基础学习笔记:Python中常用“pass 关键字”

学习笔记 DAY 48

坚持是一件说起来容易，做起来不容易的事情。

Python中常用“pass 关键字”

#Python中常用的“pass关键字”

pass关键字在Python中没有任何意义，只是单纯的实现占位，保证语句的完整性。

pass使用pass进行占位，没有意义仅仅是为了保证语句的完整性，使程序不出错。

案例学习：

age=int（input（"请输入你的年龄："））if age >16:    #print("欢迎光临游戏城")    pass print("hello world")

输出结果如下：

请输入你的年龄：20hello world

（从基础背景开始学起，坚持，是一件不容易的事情。）

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  1. CONNECT:[ UseTime:0.000507s ] mysql:host=127.0.0.1;port=3306;dbname=no_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000874s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000355s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000271s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000506s ]
  6. SELECT * FROM `set` [ RunTime:0.000191s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000498s ]
  8. SELECT * FROM `article` WHERE `id` = 474438 LIMIT 1 [ RunTime:0.000452s ]
  9. UPDATE `article` SET `lasttime` = 1773866865 WHERE `id` = 474438 [ RunTime:0.012021s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000267s ]
  11. SELECT * FROM `article` WHERE `id` < 474438 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000482s ]
  12. SELECT * FROM `article` WHERE `id` > 474438 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000381s ]
  13. SELECT * FROM `article` WHERE `id` < 474438 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000743s ]
  14. SELECT * FROM `article` WHERE `id` < 474438 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000823s ]
  15. SELECT * FROM `article` WHERE `id` < 474438 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000770s ]
0.087191s