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优秀课例 | 化学平衡不再难(视频+PPT课件)

2026-07-23 16:01:56

优秀课例 | 化学平衡不再难(视频+PPT课件)

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执教：马肇旺

单位：鲁东大学化学化工学院

指导：姜华

课例视频

01

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缓存信息 : 0 reads,0 writes
会话信息 : SESSION_ID=437f0fd3209df774eea84f2fc7885aa7

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CONNECT:[ UseTime:0.000407s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000745s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000285s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000302s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000539s ]
SELECT * FROM `set` [ RunTime:0.000191s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000693s ]
SELECT * FROM `article` WHERE `id` = 539510 LIMIT 1 [ RunTime:0.000417s ]
UPDATE `article` SET `lasttime` = 1784888069 WHERE `id` = 539510 [ RunTime:0.000577s ]
SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000251s ]
SELECT * FROM `article` WHERE `id` < 539510 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000392s ]
SELECT * FROM `article` WHERE `id` > 539510 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000379s ]
SELECT * FROM `article` WHERE `id` < 539510 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000748s ]
SELECT * FROM `article` WHERE `id` < 539510 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000691s ]
SELECT * FROM `article` WHERE `id` < 539510 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000693s ]

0.075839s

ShowPageTrace