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初学Python练题:嵌套(二),在字典中存储列表

  • 2026-01-29 14:55:15
初学Python练题:嵌套(二),在字典中存储列表

在字典中存储列表：当需要在字典中将一个键关联到多个值时，可以在字典中嵌套一个列表。

例如：回答同事喜欢的语言

1.创建一个字典列表

2.使用for循环遍历字典（注意⚠️这里遍历的是与字典关联的列表，而不是语言）

3.缩进使用for循环遍历列表

4.输出：同事喜欢的语言

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  1. CONNECT:[ UseTime:0.001042s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001518s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.003339s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.006712s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001334s ]
  6. SELECT * FROM `set` [ RunTime:0.007950s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001563s ]
  8. SELECT * FROM `article` WHERE `id` = 467756 LIMIT 1 [ RunTime:0.001059s ]
  9. UPDATE `article` SET `lasttime` = 1770478892 WHERE `id` = 467756 [ RunTime:0.007672s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000895s ]
  11. SELECT * FROM `article` WHERE `id` < 467756 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002926s ]
  12. SELECT * FROM `article` WHERE `id` > 467756 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.040015s ]
  13. SELECT * FROM `article` WHERE `id` < 467756 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.239272s ]
  14. SELECT * FROM `article` WHERE `id` < 467756 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.428109s ]
  15. SELECT * FROM `article` WHERE `id` < 467756 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.060047s ]
0.958065s