#include #include #include #include #include
#include #include #include #include
#include //改变字体颜色
#define NONE \"\\033[m\" #define RED \"\\033[0;32;31m\" #define GREEN \"\\033[0;32;32m\" #define BLUE \"\\033[0;32;34m\" #define YELLOW \"\\033[1;33m\"
#define LIGHT_RED \"\\033[1;31m\" #define LIGHT_GREEN \"\\033[1;32m\" #define LIGHT_BLUE \"\\033[1;34m\" /* 在编译程序之前，请先开启mysql服务器（命令为 sudo mysqld_safe &），然后再登录mysql客户端（命令为 mysql -u root -p）建立数据库 stu；建立数据表reader，book；具体操作语句如下：
create database stu;
create table reader(stu_name varchar(20),stu_phone varchar(15),stu_paword varchar(10),stu_num int,debt float,lend_time double,back_time double,count int);
create table book(book_name varchar(40),book_aut varchar(40),book_pre varchar(40),book_num int,book_mux int,book_con int);
编译时用如下命令：
g++ $(mysql_config --cflags) 110.cpp -o t $(mysql_config --libs) */
//定义mysql数据库变量
MYSQL
mysql; MYSQL_RES * results;
1
MYSQL_FIELD *fileds;
MYSQL_ROW rows;
char strHost[] = \"localhost\";
char strUser[] = \"root\";
char strPawd[] = \"3335599\";
char strDb[] = \"stu\"; char strSQL[200];
unsigned int num_fields; /* 程序导读：
1.程序中对书的操作，可通过书名，编号来进行,flag=0按书名来操作,flag=1按书编号来操作
2.程序中对用户的操作，也可通过姓名，用户ID号或编号两种方式来进行,flag=0按姓名来操作,
flag=1按用户ID号或编号来操作
3.本程序分5个部分，具体已标识如（1）图书管理... 4.本程序即可实现将数据保存至本地即stu.txt,book.txt，又可将数据保存至mysql数据库，只
需稍加修改，具体如何修改，在此就不做说明 */
using namespace std; cla Book { public: string book_name; string book_num;//编号
string book_pre;//出版社
string book_aut;//作者
int book_con;//这样的书还有几本
int book_mux;//这样的书总共有几本
public: Book(){book_con=0;book_mux=0;} void show_book();
};
/****************************************（1）图书管理*******************************************/ void Book::show_book() {
2 cout
cla BookNode { public: Book book; BookNode *next; }; BookNode *headbook=NULL;
void savebook(BookNode *p);//保存图书信息到数据库
void del_sql_book(BookNode *p);//将图书信息从数据库中删除
cla BookManage {
public: int totolbook; public: BookManage(){totolbook=0;} void addbook();
void delbook(string s,int num,int flag); void findbook(string s,int flag);//查询图书 };
void BookManage::addbook() { string h;
cout>h; if(h==\"-1\")return; else if(h==\"0\") while(1) {
if(h==\"-1\")break; else if(h==\"0\") {
string na,nu,p1,aut;int con; BookNode *p=new BookNode; cout>na; p->book.book_name=na; cout>nu; p->book.book_num=nu; cout>p1; p->book.book_pre=p1; cout>aut; p->book.book_aut=aut; cout>con; p->book.book_con=con; p->book.book_mux=con; p->next=headbook; headbook=p; savebook(p);//添加至数据库 BookManage::totolbook+=con;
cout
cin>>h;
}
else
cout
void BookManage::delbook(string s,int num,int flag) { BookNode *p=headbook; if(headbook!=NULL) {
switch(flag)
{
case 0:
if(headbook->book.book_name==s)
{
if(headbook->book.book_con>1)
{headbook->book.book_con-=num;headbook->book.book_mux-=num;}
4
else { headbook=p->next; totolbook-=num;
del_sql_book(p);//从数据库中删除
//delete p;
}
}
else if(p->next)
{
for(p=headbook;p->next!=NULL&&p!=NULL;p=p->next)
{
if(p->next->book.book_name==s)
{
if(p->next->book.book_con>1)
{
p->next->book.book_con-=num;headbook->book.book_mux-=num;
break;
}
else
{
p->next=p->next->next;
totolbook-=num;
del_sql_book(p->next);//从数据库中删除
//delete p->next;
break;
}
}
}
if(p->next==NULL)
cout
break; case 1:
if(headbook->book.book_num==s) {
if(headbook->book.book_con>1)
{headbook->book.book_con-=num;headbook->book.book_mux-=num;}
else
{
headbook=p->next;
totolbook-=num;
del_sql_book(p);//从数据库中删除
//delete p;
}
}
else if(p->next)
{
for(p=headbook;p->next!=NULL&&p!=NULL;p=p->next)
{
if(p->next->book.book_num==s)
{
if(p->next->book.book_con>1)
{
p->next->book.book_con-=num;headbook->book.book_mux-=num;
break;
}
else
{
p->next=p->next->next;
totolbook-=num;
del_sql_book(p->next);//从数据库中删除
//delete p->next;
break;
}
}
}
if(p->next==NULL)
cout
}
break;
default:
cout
} } }
void BookManage::findbook(string s,int flag) { BookNode *p; int h=0; switch(flag) {
case 0:
for(p=headbook;p!=NULL;p=p->next)//先查看是否有此书
{
6
if(p->book.book_name==s) break; } if(NULL==p) coutnext)//查看名为s的图书共有几本 { if(p->book.book_name==s) h++; } if(h>0) coutnext)//查看图书，把所有名为s的图书的信息都{
if(p->book.book_name==s) { p->book.show_book();//显示出图书的基本信息
if(p->book.book_con==0)
打印出来
}
cout
cout
} } break; case 1: for(p=headbook;p!=NULL;p=p->next) {
if(p->book.book_num==s)
{
p->book.show_book();
if(p->book.book_con==0)
cout
} } if(NULL==p) cout
7 }
/****************************************（*******************************************/
cla Admin//管理员 { public: string adm_name;//帐号
string adm_paw;//密码
public: Admin() {
adm_name=\"adm\";
adm_paw=\"123\"; } };
cla LendBook { public: string bookname[3]; int count;//借多少本数
time_t lend_time; time_t back_time; LendBook(){count=0;} };
cla Stu { public: string stu_name;
};
2）用户管理
string stu_phone;//联系方式
string stu_num;//学号（登录帐号） string paword;//密码 float debt;//欠费额
LendBook lendbook;//用户借书信息
public: void show_stu();//把此人所有信息（包括借书）显示出来
8
void Stu::show_stu() { cout
cla StuNode { public: Stu stu; StuNode *next; }; StuNode *headstu=NULL;
void savestu(StuNode *p);//保存读者信息到数据库
void del_sql_stu(StuNode *p);//将读者信息从数据库中删除
cla StuManage:public BookManage { private: int totolstu;//用户总数
public: StuManage(){totolstu=0;} void addstu();//增加用户
void delstu(string s,int flag);//删除用户
void findstu(string s,int flag);//查找用户
void lendbook(string ,string s,int flag);//借书
void backbook(string ,string s,int flag);//还书
void paydebt(string s);//还款
void mux_stu_book();//查询图书管总的图书量与总的用户量 };
void StuManage::addstu() { string h;
9
cout>h; if(h==\"-1\")return; else if(h==\"0\") while(1) {
if(h==\"-1\")break; else if(h==\"0\") {
string na,num,p1,pa,pa1,pa2;
StuNode *p=new StuNode;
cout
cin>>na;
p->stu.stu_name=na;
cout>p1; p->stu.stu_phone=p1; cout>num; p->stu.stu_num=num; p->stu.lendbook.lend_time=0; p->stu.lendbook.back_time=0; while(1) {
cout>pa1; cout>pa2; if(pa1==pa2) { pa=pa2; p->stu.paword=pa; break; } else coutstu.debt=0; p->next=headstu; headstu=p; savestu(p);//保存至数据库
(StuManage::totolstu)++;//用户总数加一
cout>h;
} else cout
void StuManage::delstu(string s,int flag) { StuNode *p=headstu; if(headstu!=NULL) {
switch(flag)
{
case 0:
if(headstu->stu.stu_name==s)//当要删除的用户位于链表的头结点位置 { headstu=p->next; StuManage::totolstu--; del_sql_stu(p);//从数据库中删除
delete p; }
else if(p->next)//非头结点位置 {
for(p=headstu;p->next!=NULL&&p!=NULL;p=p->next) {
if(p->next->stu.stu_name==s)
{
p->next=p->next->next;
totolstu--;
del_sql_stu(p->next);//从数据库中删除
//delete p->next;
break;
}
}
if(p->next==NULL)
cout
break; case 1:
if(headstu->stu.stu_name==s) {
headstu=p->next; totolstu--; del_sql_stu(p);//从数据库中删除
delete p; }
else if(p->next) {
for(p=headstu;p->next!=NULL&&p!=NULL;p=p->next) {
if(p->next->stu.stu_name==s)
{
p->next=p->next->next;
totolstu--;
del_sql_stu(p->next);//从数据库中删除
//delete p->next;
break;
}
}
if(p->next==NULL)
cout
}
break;
default:
cout
} } }
void StuManage::findstu(string s,int flag) { StuNode *p; int h=0,m=1; switch(flag) {
case 0:
for(p=headstu;p!=NULL;p=p->next)
{
if(p->stu.stu_name==s)
break;
}
if(p==NULL)
cout
for(p=headstu;p!=NULL;p=p->next)
{
12
if(p->stu.stu_name==s) h++; } if(h>0) coutnext) { if(p->stu.stu_name==s) {
p->stu.show_stu();
if(p->stu.lendbook.count>=3)
{
coutstu.lendbook.count; if(i>0)
\"NONE
cout
while(i)
{
coutstu.lendbook.bookname[i-1]
}
cout
}
else
{
int i=p->stu.lendbook.count;
if(i>0)
cout
while(i)
{
coutstu.lendbook.bookname[i-1]
}
} } break; case 1:
}
coutstu.lendbook.countstu.lendbook.count
for(p=headstu;p!=NULL;p=p->next)
{
if(p->stu.stu_num==s)
{
p->stu.show_stu();
if(p->stu.lendbook.count>=3)
{
cout
int i=p->stu.lendbook.count;
cout
//输出用户所借书的名字 coutstu.lendbook.bookname[i-1]
}
cout
}
else
{
int i=p->stu.lendbook.count;
cout
while(i)
{ //输出用户所借书的名字
coutstu.lendbook.bookname[i-1]
}
coutstu.lendbook.count
coutstu.lendbook.count
cout
}
break;
}
}
if(p==NULL)
cout
break;
default:
cout
}
14
void StuManage::mux_stu_book() { StuNode *p;BookNode *q;int i=0,j=0,h=0; for(p=headstu;p!=NULL;p=p->next) i++; coutnext) {
h+=q->book.book_mux;
j+=q->book.book_con; }
} coutnext) {
if(q->stu.stu_num==)
{del_sql_stu(q);break;}//丛数据库中删除
} if(q==NULL) {cout
switch(flag) {
case 0:
for(p=headbook;p!=NULL;p=p->next)
{
if(p->book.book_name==s)
{
\"NONE
del_sql_book(p);//从数据库中删除 int i=q->stu.lendbook.count; if(i>=3||q->stu.debt>0) { if((i>=3)&&(q->stu.debt==0)) {cout
if((istu.debt>0))
{cout
15 欠费再借！\"NONE
if((i>=3)&&(q->stu.debt>0))
{cout
}
else
{
//记录下所借书的名字存入用户信息中
q->stu.lendbook.bookname[i]=p->book.book_name;
time_t now;
time(&now);
q->stu.lendbook.lend_time=time(&now);//保存借书时间
q->stu.lendbook.count++;//所借书数目加一
p->book.book_con--;//同样的书的个数减一
}
break;
}
}
if(p==NULL)
cout
break;
case 1:
for(p=headbook;p!=NULL;p=p->next)
{
if(p->book.book_num==s)
{
del_sql_book(p);//从数据库中删除
int i=q->stu.lendbook.count;
if(i>=3||q->stu.debt>0)
{
if((i>=3)&&(q->stu.debt==0))
{cout
if((istu.debt>0))
{cout
if((i>=3)&&(q->stu.debt>0))
{cout
}
else
{
16
}
q->stu.lendbook.bookname[i]=p->book.book_name;
time_t now;
time(&now);
q->stu.lendbook.lend_time=time(&now);
q->stu.lendbook.count++;
p->book.book_con--;//同样的书的个数减一
}
break;
} } if(p==NULL)
cout
break; default:
cout
void StuManage::backbook(string ,string s,int flag)//还书 { BookNode *p; StuNode *q; for(q=headstu;q!=NULL;q=q->next) {
if(q->stu.stu_num==)
{del_sql_stu(q);break;}//丛数据库中删除
} if(q==NULL) {cout
switch(flag) {
case 0:
for(p=headbook;p!=NULL;p=p->next)
{
if(p->book.book_name==s)
{
del_sql_book(p);//从数据库中删除
time_t now;
time(&now);
q->stu.lendbook.back_time=time(&now);
17
q->stu.lendbook.count--;
p->book.book_con++;//同样的书的个数加一
time_t s=difftime(q->stu.lendbook.lend_time,q->stu.lendbook.back_time);
if(s>2592000)//2592000为一个月的秒数
{
int t=ceil((s-2592000)/86400);
q->stu.debt=t*0.1;
}
break; } } if(p==NULL)
cout
break;
case 1:
for(p=headbook;p!=NULL;p=p->next)
{
if(p->book.book_num==s)
{
del_sql_book(p);//从数据库删除
time_t now;
time(&now);
q->stu.lendbook.back_time=time(&now);
q->stu.lendbook.count--;
p->book.book_con++;//同样的书的个数加一
//计算借用图书的时间，超过一个月，开始计费
time_t s=difftime(q->stu.lendbook.lend_time,q->stu.lendbook.back_time);
}
if(s>2592000)//2592000为一个月的秒数
{
int t=ceil((s-2592000)/86400);
q->stu.debt=t*0.1;
}
break;
} } if(p==NULL) cout
18 savestu(q); savebook(p);
}
void StuManage::paydebt(string s) { StuNode *p;
for(p=headstu;p!=NULL;p=p->next)//查找用户 { if(p->stu.stu_num==s) {
p->stu.debt=0;
cout
stream
stream >> stu_str; //从i中抽取前面插入的string值
return stu_str; }
void savestu(StuNode *p)//保存读者信息到数据库 {
memset((void*)strSQL,0,200); sprintf(strSQL,\"insert into reader values(%s,%s,%s,%s,%f,%ld,%ld,%d)\",change_char(p->stu.stu_name),change_char(p->stu.stu_phone),change_char(p->stu.paword),change_char(p->stu.stu_num),p->stu.debt,(long)(p->stu.lendbook.lend_time),(long)(p->stu.lendbook.back_time),p->stu.lendbook.count); if(mysql_real_query(&mysql,strSQL,strlen(strSQL)) != 0)
printf(\"记录插入失败!\\n\"); }
void savebook(BookNode *p)//保存图书信息到数据库 {
19 memset((void*)strSQL,0,200); sprintf(strSQL,\"insert into book values(%s,%s,%s,%s,%d,%d)\",change_char(p->book.book_name),change_char(p->book.book_aut),change_char(p->book.book_pre),change_char(p->book.book_num),p->book.book_mux,p->book.book_con); if(mysql_real_query(&mysql,strSQL,strlen(strSQL)) != 0)
printf(\"记录插入失败!\\n\");
}
void del_sql_stu(StuNode *p)//将读者信息从数据库中删除 {
memset((void*)strSQL,0,200); sprintf(strSQL,\"delete from reader where stu_name=\'%s\'\",change_char(p->stu.stu_name)); if(mysql_real_query(&mysql,strSQL,strlen(strSQL)) != 0)
printf(\"记录删除失败!\\n\"); }
void del_sql_book(BookNode *p)//将图书信息从数据库中删除 { memset((void*)strSQL,0,200); sprintf(strSQL,\"delete from book book_name=\'%s\'\",change_char(p->book.book_name)); if(mysql_real_query(&mysql,strSQL,strlen(strSQL)) != 0)
printf(\"记录删除失败!\\n\");
} /* void savestu()//保存读者信息文件 { ofstream outfile(\"./stu.txt\",ios::out);
if(!outfile) {
cerr
return; } StuNode *p;
for(p=headstu;p!=NULL;p=p->next)//数据写入文件
{
outfilestu.stu_namestu.stu_phone;
outfilestu.pawordstu.stu_num;
20
where
outfilestu.debt;
outfilestu.lendbook.lend_time;
outfilestu.lendbook.back_time;
outfilestu.lendbook.count;
outfile
} outfile.close(); }
void savebook()//保存图书信息文件 { ofstream outfile(\"./book.txt\",ios::out);
if(!outfile) {
cerr
return; } BookNode *p;
for(p=headbook;p!=NULL;p=p->next)//数据写入文件
{
outfilebook.book_namebook.book_num;
outfilebook.book_prebook.book_aut;
outfilebook.book_mux;
outfilebook.book_con;
outfile
void loadstu()//从学生数据数据库reader中读取 { int i = 0; memset((void*)strSQL,0,100);
strcpy(strSQL,\"select * from reader\");
mysql_query(&mysql,strSQL);
//查询
results = mysql_store_result(&mysql);
//获取记录
num_fields = mysql_num_fields(results);
//获取字段数
fileds = mysql_fetch_fields(results);
//获取字段数组
21
while((rows = mysql_fetch_row(results)) != NULL)
//循环显示
{
while(i
{
StuNode *p=new StuNode;
p->stu.stu_name = (rows[i]?rows[i++]:\"NULL\");
p->stu.stu_phone = (rows[i]?rows[i++]:\"NULL\");
p->stu.paword = (rows[i]?rows[i++]:\"NULL\");
p->stu.stu_num = (rows[i]?rows[i++]:\"NULL\");
p->stu.debt = atof(rows[i]?rows[i++]:\"NULL\");
p->stu.lendbook.lend_time = (time_t)(rows[i]?rows[i++]:\"NULL\");
p->stu.lendbook.back_time = (time_t)(rows[i]?rows[i++]:\"NULL\");
p->stu.lendbook.count = atoi(rows[i]?rows[i++]:\"NULL\");
p->next=headstu;//建立用户链表
headstu=p;
}
i = 0; } }
void loadbook()//从书数据库中读取 { int i = 0; memset((void*)strSQL,0,100);
strcpy(strSQL,\"select * from book\");
mysql_query(&mysql,strSQL);
//查询
results = mysql_store_result(&mysql);
//获取记录
num_fields = mysql_num_fields(results);
//获取字段数
fileds = mysql_fetch_fields(results);
//获取字段数组
while((rows = mysql_fetch_row(results)) != NULL)
//循环显示
{
while(i
{
BookNode *p=new BookNode;
p->book.book_name = (rows[i]?rows[i++]:\"NULL\");
p->book.book_aut = (rows[i]?rows[i++]:\"NULL\");
p->book.book_pre = (rows[i]?rows[i++]:\"NULL\");
p->book.book_num = (rows[i]?rows[i++]:\"NULL\");
22
p->book.book_mux = atoi(rows[i]?rows[i++]:\"NULL\");
p->book.book_con = atoi(rows[i]?rows[i++]:\"NULL\");
p->next=headbook;//建立用户链表
headbook=p;
}
i = 0; } }
/* void loadstu()//从学生数据文件读取 { ifstream infile(\"./stu.txt\",ios::in);
if(!infile) {
cout
return; } if(infile.eof()) {
cout
infile.close(); } else {
while(infile.peek()!=EOF)//数据从文件读出
{
StuNode *p=new StuNode;
infile>>p->stu.stu_name>>p->stu.stu_phone;
infile>>p->stu.paword>>p->stu.stu_num;
infile>>p->stu.debt>>p->stu.lendbook.lend_time;
infile>>p->stu.lendbook.back_time>>p->stu.lendbook.count;
if(p->stu.stu_name!=\"\")
{
p->next=headstu;//建立用户链表
headstu=p;
23
}
else
delete p;
}
infile.close(); } }
void loadbook()//从书数据文件读取 {
ifstream infile(\"./book.txt\",ios::in);
if(!infile) {
} cout
while(infile.peek()!=EOF)//数据从文件读出
{
BookNode *p=new BookNode; infile>>p->book.book_name>>p->book.book_num; infile>>p->book.book_pre>>p->book.book_aut; infile>>p->book.book_mux>>p->book.book_con;
if(p->book.book_name!=\"\") { p->next=headbook;//建立图书链表
headbook=p; } else delete p;
24
} } */ } infile.close(); /****************************************（*******************************************/
void MenuAdmin() {
4）界面部分 cout>>>>>>>>>>>>>>>>>>>>>>>>>>>欢迎来到图书管理系统
$\"NONE
1 增加新书
$\"NONE
$\"NONE
2 删除书目
$\"NONE
$\"NONE
cout
3 借书
$\"NONE
$\"NONE
cout
4 还书
$\"NONE
$\"NONE
5 查询图书
$\"NONE
$\"NONE
6 增加读者
$\"NONE
$\"NONE
7 删除读者
$\"NONE
$\"NONE
8 查询用户
$\"NONE
25 cout
$\"NONE
9 用户交费
$\"NONE
$\"NONE
10 查询用户总数与图书总数
$\"NONE
$\"NONE
0 退出
$\"NONE
$\"NONE>>>>>>>>>>>>>>>>>>>>>>>>>[请字)]
void MenuStu() {
选
择
(输
入
相
应
数 cout>>>>>>>>>>>>>>>>>>>>>>>>>>>欢迎来到图书管理系统
cout
$\"NONE
cout
1 借书
$\"NONE
$\"NONE
cout
2 还书
$\"NONE
$\"NONE
3 查询图书
$\"NONE
$\"NONE
4 个人信息
$\"NONE
$\"NONE
0 退出
$\"NONE
26 cout
$\"NONE>>>>>>>>>>>>>>>>>>>>>>>>>[请选择(输入相应数字)]
int getch()//密码不回显函数1 { int c=0;
struct termios org_opts, new_opts;
int res=0;
//----- store old settings -----------
res=tcgetattr(STDIN_FILENO, &org_opts);
aert(res==0);
//---- set new terminal parms --------
memcpy(&new_opts, &org_opts, sizeof(new_opts));
new_opts.c_lflag &= ~(ICANON | ECHO | ECHOE | ECHOK | ECHONL | ECHOPRT | ECHOKE | ICRNL);
tcsetattr(STDIN_FILENO, TCSANOW, &new_opts);
c=getchar();
//------ restore old settings ---------
res=tcsetattr(STDIN_FILENO, TCSANOW, &org_opts);
aert(res==0);
return c; }
string set_pawd()//密码不回显函数2 { string result; char pd[128];int i; getch(); /* 当帐号和密码一起输入，且刚输完帐号后就要输入密码时，
set_pawd会把帐号结束时的回车赋‘\\n’拿过来作为自己
的第一个输入，这样容易造成密码输入的错 误，为避免
这种情况的发生，所以就可以在for循环之前假如了getch() 把‘\\n’吸收掉 */
for(i=0;;i++)
{
pd[i]=getch();
if(pd[i]==\'\\n\')
{
27
pd[i]=\'\\0\';
break;
}
if(pd[i]==127)
{
printf(\"\\b \\b\");
i=i-2;
}
else
printf(\"*\");
if(i
pd[0]=\'\\0\';
} stringstream stream; stream
stream >> result; //从stream中抽取前面插入的char值
return result; }
/****************************************（5）主函数部分*******************************************/
int main() { mysql_init(&mysql);//数据库初始化
if(!mysql_real_connect(&mysql,strHost,strUser,strPawd,strDb,0,NULL,0))//连接数据库
{
printf(\"连接数据库失败!/n\");
return 0;
} loadstu(); loadbook();
mysql_free_result(results); //释放数据库结果集
BookManage bookmanage; StuManage stumanage;
Admin admin; int i;string s;int num,flag;string s1,s2,;
28 StuNode *p; system(\"clear\");//清理屏幕
cout
～Welecome to come in～\"NONE>i;
switch(i) {
case 0:
break;
case 1:
while(1)
{
cout
cin>>s1;
if(s1==\"0\")
return 0;
cout
s2=set_pawd();
cout
if(admin.adm_name==s1)
{
while(1)
{
if(admin.adm_paw==s2)
break;
else
{
cout
s2=set_pawd();cout
if(s2==\"0\")return 0;
//cin>>s2
}
}
}
if(s1!=admin.adm_name)
cout
else
break;
}
29
while(1) { MenuAdmin(); int t; cin>>t; switch(t) {
\"
\"
case 0: //savestu();savebook();
mysql_close(&mysql); //关闭数据库链接
return 0;break;
case 1:bookmanage.addbook();//增加书本
system(\"clear\");break;//清理屏幕
case 2:
cout
cin>>flag;
if(flag==0)
{cout>s;}
else if(flag==1)
{cout>s;}
else
cout
cout
cin>>num;
bookmanage.delbook(s,num,flag);//删除书本
system(\"clear\");//清理屏幕
break;
case 3:
cout
cin>>flag;
if(flag==0)
{cout>s;}
else if(flag==1)
{cout>s;}
else
cout
cout
cin>>;
stumanage.lendbook(,s,flag);
system(\"clear\");//清理屏幕
break;
case 4: cout
30 \"
cin>>flag; if(flag==0)
{cout>s;} else if(flag==1) {cout>s;} else
\"
\"
\"
cout>; stumanage.backbook(,s,flag); system(\"clear\");//清理屏幕
break; case 5: cout>flag; if(flag==0) {cout>s;} else if(flag==1) {cout>s;}
else cout
system(\"clear\");//清理屏幕
break; case 7: cout>flag;
if(flag==0) {cout>s;} else if(flag==1) {cout>s;} else cout
system(\"clear\");//清理屏幕
break; case 8: cout
cin>>flag;
31
if(flag==0)
{cout>s;} else if(flag==1)
{cout>s;} else cout
break; case 9:
cout>s;
stumanage.paydebt(s); system(\"clear\");//清理屏幕
break; case 10: stumanage.mux_stu_book(); system(\"clear\");//清理屏幕
break; default:
cout
}
}
break; case 2: while(1) {
cout
cin>>s1;
if(s1==\"0\"){return 0;}
coutnext) { if(p->stu.stu_name==s1) {
while(1)
{
if(p->stu.paword==s2)
break;
else
32
0\"NONE
{
if(s2==\"0\")return 0;
cout
\"
\"
s2=set_pawd();
cout
//cin>>s2
}
}
break;
} } if(p==NULL) cout
break; }
while(1) { MenuStu(); int t; cin>>t; switch(t) {
case 0: //savestu();savebook();
mysql_close(&mysql); //关闭数据库链接
return 0;break;
case 1:
cout
cin>>flag;
if(flag==0)
{cout>s;}
else if(flag==1)
{cout>s;}
else
cout
stumanage.lendbook(s1,s,flag);
system(\"clear\");//清理屏幕
break;
case 2: cout
33
cin>>flag; if(flag==0)
{cout>s;} else if(flag==1)
{cout>s;} else
cout
\"
}
system(\"clear\");//清理屏幕
break; case 3: cout
cin>>flag; if(flag==0)
{cout>s;} else if(flag==1)
} {cout>s;} else cout
break;
case 4: stumanage.findstu(s1,1); system(\"clear\");//清理屏幕
break;
default: cout
} break; default: cout
34
35
