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【技术】GPS导航定位原理与应用(精美ppt图文解说)

  • 2026-09-27 18:04:43
【技术】GPS导航定位原理与应用(精美ppt图文解说)

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通过Excel的分组功能折叠不相关的数据行

基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2026-09-28 03:28:07 HTTP/1.1 GET : http://h.sjds.net/a/458980.html
  2. 运行时间 : 0.077752s [ 吞吐率：12.86req/s ] 内存消耗：4,367.09kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=e2a71f56c67997d4e3e46e752da24d21
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  1. CONNECT:[ UseTime:0.000691s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000963s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000429s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000349s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000478s ]
  6. SELECT * FROM `set` [ RunTime:0.000276s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000674s ]
  8. SELECT * FROM `article` WHERE `id` = 458980 LIMIT 1 [ RunTime:0.000324s ]
  9. UPDATE `article` SET `lasttime` = 1790537287 WHERE `id` = 458980 [ RunTime:0.001384s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000303s ]
  11. SELECT * FROM `article` WHERE `id` < 458980 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000398s ]
  12. SELECT * FROM `article` WHERE `id` > 458980 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000329s ]
  13. SELECT * FROM `article` WHERE `id` < 458980 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000496s ]
  14. SELECT * FROM `article` WHERE `id` < 458980 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000559s ]
  15. SELECT * FROM `article` WHERE `id` < 458980 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000529s ]
0.087746s