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Python 数据结构集合

  • 2026-02-07 04:51:05
Python 数据结构集合
主要知识点：四种数据结构的创建、使用和之间区别。
1️⃣ List(数组)
nums = [1, 2, 2, 3]
2️⃣ Set(集合)
ids = {1, 2, 2, 3}
3️⃣ Tuple(元组)
coords = (10, 20)
4️⃣ Dict(字典)
user = {
  "name": "Ai",
  "id": 101
}
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  1. CONNECT:[ UseTime:0.000828s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001464s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.002289s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.002228s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001366s ]
  6. SELECT * FROM `set` [ RunTime:0.002681s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001505s ]
  8. SELECT * FROM `article` WHERE `id` = 468345 LIMIT 1 [ RunTime:0.002847s ]
  9. UPDATE `article` SET `lasttime` = 1770490331 WHERE `id` = 468345 [ RunTime:0.025932s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.004911s ]
  11. SELECT * FROM `article` WHERE `id` < 468345 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001482s ]
  12. SELECT * FROM `article` WHERE `id` > 468345 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.015235s ]
  13. SELECT * FROM `article` WHERE `id` < 468345 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.005262s ]
  14. SELECT * FROM `article` WHERE `id` < 468345 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.102902s ]
  15. SELECT * FROM `article` WHERE `id` < 468345 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.018834s ]
0.348125s