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零基础也能看懂:超全 pandas 学习笔记

  • 2026-03-16 04:41:55
零基础也能看懂:超全 pandas 学习笔记

Pandas 是 Python 数据分析的高级工具，它的目标是成为强大、灵活、可以支持任何编程语言的数据分析工具，享有数据分析“三剑客之一”的盛名（NumPy、Matplotlib、Pandas）熟练掌握将为成为我们的核心竞争力！
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今天花了点时间整理Pandas全流程的学习笔记，跟着学习流程快速掌握。

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  1. CONNECT:[ UseTime:0.000982s ] mysql:host=127.0.0.1;port=3306;dbname=no_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001439s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.008510s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000729s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001433s ]
  6. SELECT * FROM `set` [ RunTime:0.000616s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001513s ]
  8. SELECT * FROM `article` WHERE `id` = 473840 LIMIT 1 [ RunTime:0.016790s ]
  9. UPDATE `article` SET `lasttime` = 1773613649 WHERE `id` = 473840 [ RunTime:0.002319s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000646s ]
  11. SELECT * FROM `article` WHERE `id` < 473840 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000999s ]
  12. SELECT * FROM `article` WHERE `id` > 473840 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003990s ]
  13. SELECT * FROM `article` WHERE `id` < 473840 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002692s ]
  14. SELECT * FROM `article` WHERE `id` < 473840 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.004311s ]
  15. SELECT * FROM `article` WHERE `id` < 473840 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004088s ]
0.217886s