非常好的MODBUS RTU MASTER程序，特别是其中的CRC-16码的算法，非常经典，可以移植到任何的地方使用。-very good MODBUS RTU MASTER procedures, Special is one of the CRC-16 code algorithm, very classic, can be transferred to any use.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001918s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.086004s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002357s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002060s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002305s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003843s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001980s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003421s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015615s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002728s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 269190 [ RunTime:0.001369s ]
