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Python数据清洗常用方法

  • 2026-02-06 00:16:03
Python数据清洗常用方法

  用Python处理数据的过程中，面对缺失、异常、重复的数据集，需开展数据清洗工作。pandas库能够协助我们解决这类问题，今天就来分享数据清洗里的常用函数与方法~

  ~

～

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  1. CONNECT:[ UseTime:0.000526s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000854s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000781s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.004340s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000488s ]
  6. SELECT * FROM `set` [ RunTime:0.000213s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000634s ]
  8. SELECT * FROM `article` WHERE `id` = 469799 LIMIT 1 [ RunTime:0.001689s ]
  9. UPDATE `article` SET `lasttime` = 1770472847 WHERE `id` = 469799 [ RunTime:0.008267s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000239s ]
  11. SELECT * FROM `article` WHERE `id` < 469799 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000957s ]
  12. SELECT * FROM `article` WHERE `id` > 469799 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.009055s ]
  13. SELECT * FROM `article` WHERE `id` < 469799 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.012942s ]
  14. SELECT * FROM `article` WHERE `id` < 469799 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.011732s ]
  15. SELECT * FROM `article` WHERE `id` < 469799 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004186s ]
0.126158s