用C++语言编写的小型的图书管理代码
部分代码如下
#include
#include
#include
using namespace std;
const int Max_book=2500; //可保存图书数量的上限
const int Max_reader=2500; //可保存读者数量的上限
const int Max_bor_book=5; //读者借阅图书本数上限
class Book //图书类
{
private:
int num; //设置图书条形码
int flag; //设置删除标记 1：已经删除 0：还未删除
int onshelf;
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001091s ]
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:0.068874s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002327s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001168s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001234s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003076s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000854s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003776s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014495s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001106s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 55974 [ RunTime:0.014253s ]
