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【机械设计】几种常用机械结构,整理个PPT专门讲一下!

  • 2026-05-09 15:13:51
【机械设计】几种常用机械结构,整理个PPT专门讲一下!

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  1. CONNECT:[ UseTime:0.001234s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001832s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000933s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000383s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000757s ]
  6. SELECT * FROM `set` [ RunTime:0.000192s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000816s ]
  8. SELECT * FROM `article` WHERE `id` = 510778 LIMIT 1 [ RunTime:0.000583s ]
  9. UPDATE `article` SET `lasttime` = 1778911632 WHERE `id` = 510778 [ RunTime:0.005712s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000310s ]
  11. SELECT * FROM `article` WHERE `id` < 510778 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000532s ]
  12. SELECT * FROM `article` WHERE `id` > 510778 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000413s ]
  13. SELECT * FROM `article` WHERE `id` < 510778 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000767s ]
  14. SELECT * FROM `article` WHERE `id` < 510778 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003683s ]
  15. SELECT * FROM `article` WHERE `id` < 510778 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002319s ]
0.112092s