在VC集成环境下，编译，连接成可执行文件，在源码所在目录下，拷贝6个文本文件（名字为1.txt,2.txt,3.txt,4.txt,5.txt,6.txt,文本文件的内容是英文）,运行即可进行练习。-in vc integration,translate and edit,and connect program to executable file
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001808s ]
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:0.088620s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001862s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001896s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002072s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003623s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001888s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003228s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016056s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002214s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 297383 [ RunTime:0.001189s ]
