这是一个数组实例。该程序里包含多种类型的数组，如一维数组、二维数组、锯齿型数组等，运行后显示各类数组及其包含的元素。-This is an instance of an array. The program includes a variety of types of arrays where, if a dimensional array, two-dimensional arrays, jagged arrays and so on, running showing the different categories and include an array of elements.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001200s ]
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:0.090181s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001676s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001974s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001609s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005647s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001406s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006534s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015263s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001314s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 72290 [ RunTime:0.013950s ]
