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【讲座讲义】程磊老师讲导数小题中构造函数的技巧

  • 2026-04-19 22:38:39
【讲座讲义】程磊老师讲导数小题中构造函数的技巧
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导数小题中构造函数的技巧
郑州 程磊 QQ:591755402

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  1. CONNECT:[ UseTime:0.000837s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000964s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000430s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000276s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000483s ]
  6. SELECT * FROM `set` [ RunTime:0.000200s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000503s ]
  8. SELECT * FROM `article` WHERE `id` = 457930 LIMIT 1 [ RunTime:0.000898s ]
  9. UPDATE `article` SET `lasttime` = 1777640300 WHERE `id` = 457930 [ RunTime:0.005191s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000239s ]
  11. SELECT * FROM `article` WHERE `id` < 457930 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000438s ]
  12. SELECT * FROM `article` WHERE `id` > 457930 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000413s ]
  13. SELECT * FROM `article` WHERE `id` < 457930 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000719s ]
  14. SELECT * FROM `article` WHERE `id` < 457930 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.027630s ]
  15. SELECT * FROM `article` WHERE `id` < 457930 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.033252s ]
0.165976s