#include<iostream>
#include<conio.h> //控制台数据输入输出的函数
#include<fstream>//文件流
#include<iomanip> //控制数据输出格式
#include<string>
using namespace std;
const int Maxr = 100;//最多的读者数
const int Maxb = 100; //最多的图书数
const int Maxbor = 5; //每位读者最多借的书
class Book
{//图书类，实现对图书的描述，图书的编号，书名，借出，还入等功能
private:
int tag; //删除标记 1:已删 0:未删
int no; //图书编号
char name[20]; //书名
char author[20];//作者
char fenlei[20];//分类号
char cbs[20]; //出版社
int cbtime;//出版时间
double bookprice;//图书价格
int onshelf; //是否再架 1:再架 2:已借
public:
Book(){ ; }
char *getname()
{//获取书名
return name;
}
char *getauthorname()
{//获取作者名
return author;
}
char *getfenlei()
{//获取分类号
return fenlei;
}
char *getcbsname()
{//获取出版社名
return cbs;
}
int getcbtime()
{//获取出版时间
return cbtime;
}
double getbookprice()
{//获取图书价格
return bookprice;
}
int getno()
{//获取图书编号
return no;
}
int gettag()
{//获取删除标记
return tag;
}
void setname(char na[])
{//设置书名
strcpy(name, na);
}
void setauthorname(char aa[])
{//设置作者名
strcpy(author, aa);
}
void setfenlei(char fe[])
{//设置分类号
strcpy(fenlei, fe);
}
void setcbs(char ca[])
{//设置出版社
strcpy(cbs, ca);
}
void setcbtime(int time)
{//设置时间
cbtime = time;
}
void setbookprice(double price)
{//设置图书价格
bookprice = price;
}
void setonshelf(int oa)
{
onshelf = oa;
}
void delbook()
{//删除图书
char i;
cout << "确定删除吗？Y/N ?" << endl;
cin >> i;
if (i == 'y' || i == 'Y')
tag = 1;
}
void addbook(int n, char *na, char *aa, char *fe, char *ca, int time, double price, int oa)
{//增加图书
tag = 0;
no = n;
strcpy(name, na);
strcpy(author, aa);
strcpy(cbs, ca);
strcpy(fenlei, fe);
cbtime = time;
bookprice = price;
onshelf = oa;
}
int borrowbook()
{//借书操作
if (onshelf>0)
{
onshelf--;
return 1;
}
return 0;
}
void retbook()
{//还书操作
onshelf++;
}
void disp()
{//输出图书
cout << setw(3) << no << setw(10) << name << setw(10) << author << setw(10) << fenlei << setw(15) << cbs << setw(10) << cbtime << setw(10) << bookprice << setw(10) << onshelf << endl;
}
};
class BDatabase
{//图书库类，实现对图书的维护，查找，删除等
private:
int top; //图书记录指针
Book book[Maxb]; //图书记录
public:
BDatabase()
{//构造函数，将book.txt读到book[]中
Book b;
top = -1;
fstream file("book.txt", ios::in);
while (1)
{
file.read((char *)&b, sizeof(b));
if (!file)
break;
top++;
book[top] = b;
}
file.close();
}
void clear()
{//全删
char i;
cout << "确定全部删除吗？Y/N ?" << endl;
cin >> i;
if (i == 'y' || i == 'Y')
top = -1;
}
int addbook(int n, char *na, char *aa, char *fe, char *ca, int time, double price, int oa)
{//增加图书
Book *p = query1(n);
if (NULL == p)
{
top++;
book[top].addbook(n, na, aa, fe, ca, time, price, oa);
return 1;
}
return 0;
}
Book *query1(int bookid)
{//按编号查找图书
for (int i = 0; i <= top; i++)
if (book[i].getno() == bookid &&book[i].gettag() == 0)
{
return &book[i];
}
return NULL;
}
Book *query2(char a[])
{//按书名查找图书
Book *e;
int r = 0;
for (int i = 0; i <= top; i++)
if (strcmp(book[i].getname(), a) == 0 && book[i].gettag() == 0)
{
if (r == 0)
cout << setw(3) << "编号" << setw(10) << "书名" << setw(10) << "作者" << setw(10) << "分类号" << setw(15) << "出版社" << setw(10) << "出版时间" << setw(10) << "图书价格" << setw(10) << "存量" << endl;
e = &book[i];
e->disp();
r++;
}
if (r == 0)
cout << "找不到该书!" << endl;
return NULL;
}
Book *query3(char a[])
{//按作者查找图书
Book *e;
int r = 0;
for (int i = 0; i <= top; i++)
if (strcmp(book[i].getauthorname(), a) == 0 && book[i].gettag() == 0)
{
if (r == 0)
cout << setw(3) << "编号" << setw(10) << "书名" << setw(10) << "作者" << setw(10) << "分类号" << setw(15) << "出版社" << setw(10) << "出版时间" << setw(10) << "图书价格" << setw(10) << "存量" << endl;
e = &book[i];
e->disp();
r++;
}
if (r == 0)
cout << "找不到该书!" << endl;
return NULL;
}
Book *query4(char a[])
{//按出版社查找图书
Book *e;
int r = 0;
for (int i = 0; i <= top; i++)
if (strcmp(book[i].getcbsname(), a) == 0 && book[i].gettag() == 0)
{
if (r == 0)cout << setw(3) << "编号" << setw(10) << "书名" << setw(10) << "作者" << setw(10) << "分类号" << setw(15) << "出版社" << setw(10) << "出版时间" << setw(10) << "图书价格" << setw(10) << "存量" << endl;
e = &book[i];
e->disp();
r++;
}
if (r == 0)
cout << "找不到该书!" << endl;
return NULL;
}
void bookdata(); //图书库信息
void disp()
{
for (int i = 0; i <= top; i++)
if (book[i].gettag() == 0)
book[i].disp();
}
~BDatabase()
{//析构函数，将book[]写到book.txt文件中
fstream file("book.txt", ios::out);
for (int i = 0; i <= top; i++)
if (book[i].gettag() == 0)
file.write((char *)&book[i], sizeof(book[i]));
file.close();
}
};
void BDatabase::bookdata()
{
char choice3;
char bname[40];//书名
char auname[40];//作者名
char bfenlei[40];//分类号
char cname[40];//出版社
int time;//出版时间
double price;//价格
char ch;
int choice4;
int bookid;
int bookod;
Book *b;
while (choice3 != '0')
{
cout << "\n\t\t\t** 图 书 信 息 **\n" << endl;
cout << "\t\t\t** 1.新 增 **" << endl;
cout << "\t\t\t** 2.更 改 **" << endl;
cout << "\t\t\t** 3.删 除 **" << endl;
cout << "\t\t\t** 4.查 找 **" << endl;
cout << "\t\t\t** 5.显 示 **" << endl;
cout << "\t\t\t** 6.全 删 **" << endl;
cout << "\t\t\t** 0.返 回 **" << endl;
cout << "\t\t\t 请选择：";
cin >> choice3;
switch (choice3)
{
case '1':
cout << "请输入新书编号:";
cin >> bookid;
b = query1(bookid);
if (b != NULL)
{
cout << "该编号已经存在，不能添加!" << endl;
break;
}
cout << "请输入新书书名:";
cin >> bname;
cout << "请输入新书作者名:";
cin >> auname;
cout << "请输入新书分类号:";
cin >> bfenlei;
cout << "请输入新书出版社:";
cin >> cname;
cout << "请输入新书出版时间:";
cin >> time;
cout << "请输入图书价格:";
cin >> price;
cout << "请输入新书数量:";
cin >> bookod;
addbook(bookid, bname, auname, bfenlei, cname, time, price, bookod);
char choice2;
{
cout << "\n\t\t\t** 是 否 保 存 Y/N ?**\n" << endl;
cout << "\t\t\t** 1. Y 保 存 **" << endl;
cout << "\t\t\t** 0. N 不 保 存 **" << endl;
cout << "\t\t\t 请 选 择: ";
cin >> choice2;
switch (choice2)
{
case '1':
cout << "添加图书成功!";
break;
case '0':
break;
}
}
getch();
break;
case '2':
cout << "请输入图书编号:";
cin >> bookid;
b = query1(bookid);
if (b == NULL)
{
cout << "该图书不存在! " << endl;
break;
}
cout << "该图书的信息是：" << endl;
cout << setw(3) << "编号" << setw(10) << "书名" << setw(10) << "作者" << setw(10) << "分类号" << setw(15) << "出版社" << setw(10) << "出版时间" << setw(10) << "图书价格" << setw(10) << "存量" << endl;
b->disp();
cout << "是否修改?( y/n ):";
cin >> ch;
if (ch == 'y' || ch == 'Y')
{
int a;
cout << "\n\t\t\t** 图 书 修 改 **\n" << endl;
cout << "\t\t\t** 1.修 改 书 名 **" << endl;
cout << "\t\t\t** 2.修 改 作 者 **" << endl;
cout << "\t\t\t** 3.修 改 分 类 号 **" << endl;
cout << "\t\t\t** 4.修 改 出 版 社 **" << endl;
cout << "\t\t\t** 5.修 改 出 版 时 间**" << endl;
cout << "\t\t\t** 6.修 改 图 书 价 格**" << endl;
cout << "\t\t\t** 7.修 改 图 书 数 量**" << endl;
cout << "\t\t\t** 0.返 回 **" << endl;
cout << "\t\t\t 请选择：";
cin >> a;
switch (a)
{
case 1: cout << "请输入新的书名:";
cin >> bname; b->setname(bname); break;
case 2: cout << "请输入新的作者:";
cin >> auname; b->setauthorname(auname); break;
case 3: cout << "请输入新的分类号:";
cin >> bfenlei; b->setfenlei(bfenlei); break;
case 4: cout << "请输入新书出版社:";
cin >> cname; b->setcbs(cname); break;
case 5: cout << "请输入新书出版时间:";
cin >> time; b->setcbtime(time); break;
case 6: cout << "请输入图书价格:";
cin >> price; b->setbookprice(price); break;
case 7: cout << "请输入新的存量:";
cin >> bookod; b->setonshelf(bookod); break;
case 0: break;
}
}
cout << "修改图书成功!";
getch();
break;
case '3':
cout << "请输入图书编号:";
cin >> bookid;
b = query1(bookid);
if (b == NULL)
{
cout << "该图书不存在，无法删除!" << endl;
break;
}
b->delbook();
cout << "删除成功!";
getch();
break;
case '4':
cout << "\n\t\t\t** 1.按图书编号查找 **" << endl;
cout << "\t\t\t** 2.按图书书名查找 **" << endl;
cout << "\t\t\t** 3.按图书作者查找 **" << endl;
cout << "\t\t\t** 4.按图书出版社查找**" << endl;
cout << "\t\t\t** 0. 返 回 **" << endl;
cout << "\t\t\t 请选择:";
cin >> choice4;
switch (choice4)
{
case 1:
cout << "请输入图书编号:";
cin >> bookid;
b = query1(bookid);
if (b == NULL)
{
cout << "该图书不存在!";
break;
}
cout << setw(3) << "编号" << setw(10) << "书名" << setw(10) << "作者" << setw(10) << "分类号" << setw(15) << "出版社" << setw(10) << "出版时间" << setw(10) << "图书价格" << setw(10) << "存量" << endl;
b->disp();
break;
case 2:
cout << "请输入图书书名:";
cin >> bname;
b = query2(bname);
break;
case 3:
cout << "请输入图书作者:";
cin >> auname;
b = query3(auname);
break;
case 4:
cout << "请输入图书出版社:";
cin >> cname;
b = query4(cname);
break;
case 0:
break;
}
break;
case '5':
cout << setw(3) << "编号" << setw(10) << "书名" << setw(10) << "作者" << setw(10) << "分类号" << setw(15) << "出版社" << setw(10) << "出版时间" << setw(10) << "图书价格" << setw(10) << "存量" << endl;
disp();
getch();
break;
case '6':
clear();
break;
default:
break;
}
}
}
class Reader
{//读者的信息描述
private:
int tag; //删除标记 1表示已删 0表示未删
int no; //读者编号
char name[20]; //读者姓名
int borbook[Maxbor]; //所借图书
public:
Reader() //构造函数
{
;
}
friend ostream &operator<<(ostream &output, Reader &rd)
{
output << rd.no;
output << " ";
output << endl;
return output;
}
char *getname()
{//获取姓名
return name;
}
int gettag()
{//获取删除标记
return tag;
}
int getno()
{//获取读者编号
return no;
}
void setname(char na[])
{//设置姓名
strcpy(name, na);
}
void delbook()
{//设置删除标记 1:已删 0:未删
char i;
cout << "确定删除吗？Y/N ?" << endl;
cin >> i;
if (i == 'y' || i == 'Y')
tag = 1;
}
void addreader(int n, char *na)
{//增加读者
tag = 0;
no = n;
strcpy(name, na);
for (int i = 0; i<Maxbor; i++)
borbook[i] = 0;
}
void borrowbook(int bookid)
{//借书操作
for (int i = 0; i<Maxbor; i++)
{
if (borbook[i] == 0)
{
borbook[i] = bookid;
return;
}
}
}
int retbook(int bookid)
{//还书操作
for (int i = 0; i<Maxbor; i++)
{
if (borbook[i] == bookid)
{
borbook[i] = 0;
cout << "还书成功!" << endl;
return 1;
}
}
cout << "未借该书，还书失败!" << endl;
return 0;
}
void disp()
{//读出读者信息
int have = 0;
int bz = 0;
cout << setw(5) << no << setw(21) << name << setw(15);
for (int i = 0; i<Maxbor; i++)
if (borbook[i] != 0)
{
if (bz == 0)
{
have = 1;
cout << "[" << borbook[i] << "]\t\t" << endl;
bz++;
}
else
{
cout << "\r\t\t\t\t\t""[" << borbook[i] << "]\t\t" << setw(15) << endl;
}
}
if (have == 0)
cout << "\t 还未借书" << endl;
}
};
class RDatabase
{//读者类库，实现建立读者的个人资料
private:
int top; //读者记录指针
Reader read[Maxr]; //读者记录
public:
RDatabase()
{//构造函数，将reader.txt读到read[]中
Reader s;
top = -1;
fstream file("reader.txt", ios::in); //打开一个输入文件
while (1)
{
file.read((char *)&s, sizeof(s));
if (!file)
break;
top++;
read[top] = s;
}
file.close(); //关闭 reader.txt 文件
}
void clear()
{//删除所有读者信息
char i;
cout << "确定全部删除吗？Y/N ?" << endl;
cin >> i;
if (i == 'y' || i == 'Y')
top = -1;
}
int addreader(int n, char *na)
{//添加读者时先查找是否存在
Reader *p = queryid(n);
if (p == NULL)
{
top++;
read[top].addreader(n, na);
return 1;
}
else
cout << "该编号已经存在!";
return 0;
}
Reader *queryid(int readerid)
{//按读者编号查找
for (int i = 0; i <= top; i++)
if (read[i].getno() == readerid&&read[i].gettag() == 0)
{
return &read[i];
}
return NULL;
}
Reader *queryname(char readername[10])
{//按读者姓名查找
for (int i = 0; i <= top; i++)
if (strcmp(read[i].getname(), readername) == 0 && read[i].gettag() == 0)
{
return &read[i];
}
return NULL;
}
void disp()
{//输出所有读者信息
for (int i = 0; i <= top; i++)
if (read[i].gettag() == 0)
read[i].disp();
}
void readerdata(); //读者库信息
~RDatabase()
{//析构函数，将read[]写到reader.txt文件中
fstream file("reader.txt", ios::out);
for (int i = 0; i <= top; i++)
if (read[i].gettag() == 0)
file.write((char *)&read[i], sizeof(read[i]));
file.close();
}
};
void RDatabase::readerdata()
{
char choice1;
char rname[20];
int readerid;
char readername[10];
int choice2;
Reader *r;
while (choice1 != '0')
{
cout << "\n\t\t\t** 读 者 信 息 **\n" << endl;
cout << "\t\t\t** 1. 新 增 **" << endl;
cout << "\t\t\t** 2. 更 改 **" << endl;
cout << "\t\t\t** 3. 删 除 **" << endl;
cout << "\t\t\t** 4. 查 找 **" << endl;
cout << "\t\t\t** 5. 显 示 **" << endl;
cout << "\t\t\t** 6. 全 删 **" << endl;
cout << "\t\t\t** 0. 返 回 **" << endl;
cout << "\t\t\t 请选择：";
cin >> choice1;
switch (choice1)
{
case '1':
cout << "请输入读者编号:";
cin >> readerid;
cout << "请输入读者姓名:";
cin >> rname;
addreader(readerid, rname);
cout << "添加读者成功!" << endl;
getch();
break;
case '2':
cout << "请输入读者编号:";
cin >> readerid;
r = queryid(readerid);
if (r == NULL)
{
cout << "该读者不存在! " << endl;
break;
}
cout << "请输入新的姓名:";
cin >> rname;
r->setname(rname);
cout << "修改读者成功!" << endl;
getch();
break;
case '3':
cout << "请输入读者编号:";
cin >> readerid;
r = queryid(readerid);
if (r == NULL)
{
cout << "该读者不存在!" << endl;
break;
}
r->delbook();
cout << "删除成功!" << endl;
getch();
break;
case '4':
cout << "\n\t\t\t** 1.按读者编号查找 **" << endl;
cout << "\t\t\t** 2.按读者姓名查找 **" << endl;
cout << "\t\t\t** 0.返 回 **" << endl;
cout << "\t\t\t 请选择:";
cin >> choice2;
switch (choice2)
{
case 1:
cout << "请输入读者编号:";
cin >> readerid;
r = queryid(readerid);
if (r == NULL)
{
cout << "该读者不存在!" << endl;
break;
}
cout << setw(10) << "读者编号" << setw(17) << "读者姓名" << setw(20) << "已借书编号" << endl;
r->disp();
break;
case 2:
cout << "请输入读者姓名:";
cin >> readername;
r = queryname(readername);
if (r == NULL)
{
cout << "该读者不存在!" << endl;
break;
}
cout << setw(10) << "读者编号" << setw(17) << "读者姓名" << setw(20) << "已借书编号" << endl;
r->disp();
break;
case 0:
break;
}
break;
case '5':
cout << setw(10) << "读者编号" << setw(17) << "读者姓名" << setw(20) << "已借书编号" << endl;
disp();
getch();
break;
case '6':
clear();
break;
default:
break;
}
}
}
class maindesk //实现程序的主界面
{
char choice5;
char choice2;
double xh, mm;
int bookid, readerid;
RDatabase ReaderDB;
Reader *r;
BDatabase BookDB;
Book *b;
public:
maindesk() { ; }
int denglu()
{
int k = 0;
cout << "\n\t\t\t 欢 迎 光 临 图 书 馆 管 理 系 统!" << endl;
cout << "\t\t\t 您 共 有 3 次 登 陆 机 会" << endl;
while (choice2 != '0')
{
++k;
cout << "\t\t\t ** 1. 登 录 **" << endl;
cout << "\t\t\t ** 0. 退 出 **" << endl;
cout << "\t\t\t 请 选 择: ";
cin >> choice2;
switch (choice2)
{
case '1':
cout << "请输入学号和密码" << endl;
cin >> xh >> mm;
if ((xh >= 138325039) && (xh <= 138325039) && (xh == mm))
{
cout << "登录成功" << endl;
enterdesk();
}
if ((xh<138325039) || (xh>138325039) || (xh != mm))
{
cout << "登录失败：您还有" << 3 - k << "次登陆机会" << endl;
if (k >= 3)
{
cout << "您已超过登录次数上限，系统自动退出!" << endl;
return 1;
}
continue;
}
break;
case '0':
break;
}
return 1;
}
return 0;
}
void enterdesk()
{
while (choice5 != '0')
{
cout << "\n\t\t\t**** 图 书 管 理 系 统****\n\n";
cout << "\t\t\t** 1.图 书 信 息 **" << endl;
cout << "\t\t\t** 2.读 者 信 息 **" << endl;
cout << "\t\t\t** 3.借 阅 图 书 **" << endl;
cout << "\t\t\t** 4.归 还 图 书 **" << endl;
cout << "\t\t\t** 0. 退 出 **" << endl;
cout << "\t\t\t 请选择：";
cin >> choice5;
switch (choice5)
{
case '1':
BookDB.bookdata();
break;
case '2':
ReaderDB.readerdata();
break;
case '3':
cout << "\t\t\t\t借书操作" << endl;
cout << "请输入借书读者编号:";
cin >> readerid;
r = ReaderDB.queryid(readerid);
if (NULL == r)
{//按编号查找是否有该读者
cout << "不存在该读者，不能借书!" << endl;
break;
}
cout << "请输入要借图书编号:";
cin >> bookid;
b = BookDB.query1(bookid);
if (b == NULL)
{//按编号查找是否有该图书
cout << "不存在该图书，不能借书!" << endl;
break;
}
if (b->borrowbook() == 0)
{
cout << "该图书已借完，不能借书!" << endl;
break;
}
cout << "读者借书成功!" << endl;
r->borrowbook(b->getno());
break;
case '4':
cout << "\t\t\t\t还书操作" << endl;
cout << "请输入还书读者编号:";
cin >> readerid;
r = ReaderDB.queryid(readerid);
if (r == NULL)
{
cout << "不存在该读者，不能还书" << endl;
break;
}
cout << "请输入要归还图书编号:";
cin >> bookid;
b = BookDB.query1(bookid);
if (b == NULL)
{
cout << "不存在该图书，不能还书" << endl;
break;
}
b->retbook();
r->retbook(b->getno());
break;
case '0':
break;
default:
break;
}
}
}
};
void main() //主函数
{
maindesk yourDesk;
if (yourDesk.denglu())
cout << "\t\t 谢 谢 使 用 , 再 见 !" << endl;
}
图书管理系统实现
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转载自blog.csdn.net/qq_31339017/article/details/78050218
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