随机产生5组测试数据，分别进行顺序查找，折半查找和分块查找，输出比较结果-five groups randomly generated test data, for the order to search, locate and half-block search, the output results
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001392s ]
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:0.083303s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.011999s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.017628s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001710s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005469s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001393s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.007081s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.020006s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001158s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 118368 [ RunTime:0.037779s ]
