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小白如何学习PLC编程?

2026-02-05 00:49:14

小白如何学习PLC编程?

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请求信息 : 2026-02-07 12:22:45 HTTP/2.0 GET : https://f.mffb.com.cn/a/471468.html
运行时间 : 0.145887s [ 吞吐率：6.85req/s ] 内存消耗：4,387.77kb 文件加载：140
缓存信息 : 0 reads,0 writes
会话信息 : SESSION_ID=182d5bbd7bb6603a8a55441eb559ccc6

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CONNECT:[ UseTime:0.000597s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000968s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.004009s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.003011s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000814s ]
SELECT * FROM `set` [ RunTime:0.006737s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000624s ]
SELECT * FROM `article` WHERE `id` = 471468 LIMIT 1 [ RunTime:0.003318s ]
UPDATE `article` SET `lasttime` = 1770438165 WHERE `id` = 471468 [ RunTime:0.011675s ]
SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000262s ]
SELECT * FROM `article` WHERE `id` < 471468 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000520s ]
SELECT * FROM `article` WHERE `id` > 471468 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000857s ]
SELECT * FROM `article` WHERE `id` < 471468 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001555s ]
SELECT * FROM `article` WHERE `id` < 471468 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.017458s ]
SELECT * FROM `article` WHERE `id` < 471468 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.017887s ]

0.149714s

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