当前位置：首页>python>初学Python练题:使用两个列表进行新老成员管理

初学Python练题:使用两个列表进行新老成员管理

  • 2026-01-26 18:06:30
初学Python练题:使用两个列表进行新老成员管理

创建一个班级成员的管理，演示检查新成员是否已经在原班级中

完整程序

运行：

这个程序的编写特点：

1.双重检查：使用in运算符检查成员是否存在。

2.差异化处理：对原成员和新成员显示不一样的消息

这个例题的简单写法：

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  2. 运行时间 : 0.207806s [ 吞吐率：4.81req/s ] 内存消耗：4,583.74kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=61a3d84276445ad61215b17e885afbf0
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  1. CONNECT:[ UseTime:0.001040s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001573s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000741s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000694s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001327s ]
  6. SELECT * FROM `set` [ RunTime:0.000621s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001554s ]
  8. SELECT * FROM `article` WHERE `id` = 464409 LIMIT 1 [ RunTime:0.001158s ]
  9. UPDATE `article` SET `lasttime` = 1770554977 WHERE `id` = 464409 [ RunTime:0.002634s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.015142s ]
  11. SELECT * FROM `article` WHERE `id` < 464409 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001343s ]
  12. SELECT * FROM `article` WHERE `id` > 464409 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.004808s ]
  13. SELECT * FROM `article` WHERE `id` < 464409 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.007127s ]
  14. SELECT * FROM `article` WHERE `id` < 464409 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002027s ]
  15. SELECT * FROM `article` WHERE `id` < 464409 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004266s ]
0.211765s