总线编程
AT24C系列E2PROM芯片地址的固定部分为1010，A2、A1、A0引脚接高、低电平后得到确定的3位编码。-Bus Programming AT24C Series E2PROM chip address for the fixed part of 1010, A2, A1, A0 then pin high, low-level to be determined after the three coding.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001419s ]
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:0.209936s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001547s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001543s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001013s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003378s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000828s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003645s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015637s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001095s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 255674 [ RunTime:0.016603s ]
