sd卡的高速读写程序，sd模式（4数据线），是普通spi模式的约6倍，以及完全的sd卡的data sheet-sd-card reader procedures, sd model (four data lines), is the general pattern of about 20 six times. and full sd card data sheet
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001235s ]
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:0.090563s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001199s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001201s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003583s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001033s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003168s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015366s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001360s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 191355 [ RunTime:0.001416s ]
