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你真正理解 Python 循环的 else 吗?

  • 2026-01-14 02:23:39
你真正理解 Python 循环的 else 吗?
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  1. CONNECT:[ UseTime:0.000732s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000966s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000378s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000297s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000502s ]
  6. SELECT * FROM `set` [ RunTime:0.000215s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000550s ]
  8. SELECT * FROM `article` WHERE `id` = 462513 LIMIT 1 [ RunTime:0.000396s ]
  9. UPDATE `article` SET `lasttime` = 1770551099 WHERE `id` = 462513 [ RunTime:0.011748s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000405s ]
  11. SELECT * FROM `article` WHERE `id` < 462513 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000617s ]
  12. SELECT * FROM `article` WHERE `id` > 462513 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000441s ]
  13. SELECT * FROM `article` WHERE `id` < 462513 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002289s ]
  14. SELECT * FROM `article` WHERE `id` < 462513 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001146s ]
  15. SELECT * FROM `article` WHERE `id` < 462513 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000814s ]
0.089145s