能实现1Hz~50MHz间的频率测量，显示信号周期，能实现1Hz~15KHz间的信号波形实时显示，采样速率120KHz。-1Hz ~ 50MHz to achieve inter-frequency measurements show that the signal cycle, to achieve inter-1Hz ~ 15KHz real-time display of signal waveforms, the sampling rate of 120KHz.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001282s ]
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:0.088651s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001222s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001901s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001240s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003557s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001061s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003198s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014581s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001335s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 140071 [ RunTime:0.001320s ]
