图书管理系统c++

#include <iostream>
#include <cstdio>
#include <cstring>
#include <string>
#include <vector>
#include <algorithm>
#include <fstream>
#include <cctype>
#include <iomanip>
#include <conio.h>
using namespace std;
struct student
{
int id;//读者编号
string name;//读者姓名
int borrowsum;//你已借阅多少本书,默认为0
int number;//现在还有多少本书未还，默认为0
string borrowday;//上次借阅时间，默认为0000.00.00
int b[10];//你所借书的的编号，最多10本
};
struct book
{
int idnum;//图书检索号
int BorrowCount;//图书借阅量,初始化为0
string name;//书名
string kind;//图书种类
double price;//图书价格
int sum;//图书总库存存量
int nowsum;//图书现库存量
string author;//图书作者
int appointment;//图书预约量,初始化为0
bool ok;//是否可借,初始为可以
string borrowdate;//图书最近一次借出时间，默认为0000-00-00；
string returndate;//图书最近一次归还时间，默认为0000-00-00；
string room;//馆藏地
};
bool cmpByidnum(book a,book b)
{
return a.idnum<b.idnum;
}
bool cmpByCount(book a,book b)
{
return a.BorrowCount>b.BorrowCount;
}
bool cmpByBorrowsum(student a,student b)
{
return a.borrowsum>b.borrowsum;
}
bool cmpByid(student a,student b)
{
return a.id<b.id;
}
class Library
{
private:
int borrownum;//每月借出书数量
int returnnum;//每月还书数量
vector<book> data;
vector<student> data1;
vector<int> betoli;//预约书到馆，储存其编号
public:
Library();
void AddBook(book NewBook);  //增加图书
void DeleteBook(string bookname,string author);//删除图书
void BorrowBook(string name,string author);//借阅图书
void BackBook(string name,string author,int k);//归还图书
void ShowAllBook(); //输出系统所有图书
void  SearchBookPosWithname(string thebook); //按书名查询
void  SearchBookPosWithAuthor(string theauthor);//按作者查询
void  SearchBookPosWithKind(string kind);//按种类查询
int  SearchBookPosWithAB(string theauthor,string thebook);//按作者和书名查询
int  SearchBookPosWithid(int id); //按检索号搜寻
void SortBook(int ca);  //排序
void SortStudent(int ca);//按读者借阅量排序
void Save();  //存入图书馆文件
void Save1();//存入学生文件
void Appointment(string bookname,string author);//预约图书
void printbook(book a);//输出某本书的所有信息
void revisebook(string name,string author);//修改某本书的信息
int SerchStudent(int id);//查询某个读者
//int SerchStudent1(int id);//查询某个读者
void AddStudent(student a);//增加一个读者
void PrintStudent(int kid);//输出读者信息
int GetStudent();//返回读者总数
int readsum(int id);//获取某个读者的借阅量
int getborrownum();//获取本月外借量
int getreturnnum();//获取本月还书量
void PrintToLi();//输出到馆预约书
};
Library::Library()
{
borrownum=0;
returnnum=0;
int AllBook,AllStudent;
ifstream fin("book.txt");
if(fin)
{
fin>>AllBook;
for(int i=0; i<AllBook; i++)
{
book tem;
fin>>tem.idnum>>tem.name>>tem.author>>tem.price>>tem.kind>>tem.room>>tem.sum>>tem.nowsum>>tem.BorrowCount>>tem.ok>>tem.appointment>>tem.borrowdate>>tem.returndate;
data.push_back(tem);
}
fin.close();
}
//cin.clear();
//cin.sync();
ifstream tfin("student.txt");
if(tfin)
{
tfin>>AllStudent;
for(int i=0; i<AllStudent; i++)
{
student tem;
tfin>>tem.id>>tem.name>>tem.borrowsum>>tem.number>>tem.borrowday;
for(int j=0;j<10;j++)
{
tfin>>tem.b[j];
}
data1.push_back(tem);
}
tfin.close();
}
}
int Library::readsum(int a)
{
//SortStudent(1);
return data1[a-1].borrowsum;
}
int Library::getborrownum()//获取本月外借量
{
return borrownum;
}
int Library::getreturnnum()//获取本月还书量
{
return returnnum;
}
int Library::GetStudent()
{
int k=(int)data1.size();
return k+1;
}
void Library::AddBook(book NewBook)
{
data.push_back(NewBook);
}
void Library::AddStudent(student newstudent)
{
data1.push_back(newstudent);
}
void Library::DeleteBook(string bookname,string author)
{
int pos = SearchBookPosWithAB(author,bookname);
if (pos!=-1)
{
data.erase(data.begin()+pos);
return ;
}
else
cout<<"查无此书！\n";
}
void Library::BorrowBook(string name,string author)
{
string BorrowDate;
string BackDate;
char c;
int flag=0;
SortStudent(1);
int sid=-1;
for (int i = 0; i <(int)data.size(); i++)
{
if (data[i].name==name&&data[i].author==author)
{
if(data[i].nowsum)
{
cout<<"借书读者的读者号是：";
cin>>sid;
if(data1[sid-1].number>10)
{
cout<<"现你同时借了10本书！不可再借！"<<endl;
break;
}
flag=1;
data[i].nowsum=data[i].nowsum-1;
data[i].BorrowCount=data[i].BorrowCount+1;
cout<<"请输入借阅日期"<<endl;
cin>>BorrowDate;
data[i].borrowdate=BorrowDate;
cout<<"请输入预计归还日期(最多可借一月)"<<endl;
cin>>BackDate;
data[i].returndate=BackDate;
data[i].ok=bool(data[i].nowsum);
borrownum++;
data1[sid-1].number++;
for(int j=0;j<10;j++)
{
if(data1[sid-1].b[j]==0)
data1[sid-1].b[j]=data[i].idnum;
Save();
Save1();
}
}
else
{
cout<<"~~~~(>_<)~~~~ !这书被借走了！是否预约？Y/N"<<endl;
cin>>c;
c=toupper(c);
if(c=='Y')
data[i].appointment++;
}
}
}
if(!flag)
cout<<"抱歉，未找到您要找的书。"<<endl;
}
void Library::BackBook(string name,string author,int k)//k表示还书途径
{
int c=-1;
SortStudent(1);
if(k!=-1)//读者自助还书
{
c=k-1;
}
else//读者通过借还总台还书
{
cout<<"请输入你的读者号：";
cin>>c;
c=c-1;
}
for (int i = 0; i <(int)data.size(); i++)
{
if (data[i].name==name&&data[i].author==author)
{
data[i].nowsum=data[i].nowsum+1;
data[i].ok=bool(data[i].nowsum);
returnnum++;
if(data[i].appointment!=0)
{
data[i].appointment--;
betoli.push_back(data[i].idnum);
}
for(int j=0;j<10;j++)
{
if(data1[c].b[j]==data[i].idnum)
data1[c].b[j]=0;
}
data1[c].number--;
break;
}
}
Save();
Save1();
}
void Library::printbook(book a)
{
cout<<setw(8)<<a.idnum;
cout<<setw(14)<<a.name;
cout<<setw(14)<<a.author;
cout<<setw(14)<<fixed<<setprecision(2)<<a.price;
cout<<setw(14)<<a.kind;
cout<<setw(14)<<a.room;
cout<<setw(14)<<a.sum;
cout<<setw(14)<<a.nowsum;
cout<<setw(14)<<a.BorrowCount;
cout<<setw(10)<<(a.ok==0?"不可借":"可借");
cout<<setw(14)<<a.appointment;
cout<<setw(14)<<a.borrowdate;
cout<<setw(14)<<a.returndate<<endl;
// cout<<endl;
}
void Library::PrintToLi()
{
SortBook(1);
int k=(int)betoli.size();
if(!k) cout<<"     暂时无预约书到馆！"<<endl;
else
{
cout<<"        到馆的预约书有：\n";
for(int i=0;i<k;i++)
{
printbook(data[betoli[i]-1]);
}
}
}
void Library::PrintStudent(int kid)
{
int id=kid-1;
//id=SerchStudent(id);
SortStudent(1);
SortBook(1);
//SortStudent(1);
cout<<setw(8)<<data1[id].id;
cout<<setw(8)<<data1[id].name;
cout<<setw(14)<<data1[id].borrowsum;
cout<<setw(18)<<data1[id].number;
cout<<setw(14)<<data1[id].borrowday<<endl;
if(data1[id].number)
{
cout<<"你当前借了这些书：\n";
cout<<setw(16)<<"检索号"<<setw(16)<<"书名"<<setw(16)<<"作者"<<endl;
for(int i=0;i<10;i++)
{
if(data1[id].b[i]!=0)
cout<<setw(16)<<data[data1[id].b[i]-1].idnum<<setw(16)<<data[data1[id].b[i]-1].name<<setw(16)<<data[data1[id].b[i]-1].author<<endl;
}
}
else
cout<<"你当前并未借任何书,快去借本书看看吧！\n";
}
void Library::ShowAllBook()
{
//system("cls");
cout<<setw(8)<<"检索号"<<setw(14)<<"书名"<<setw(14)<<"作者"<<setw(14)<<"价格"<<setw(14)<<"种类"<<setw(14)<<"馆藏地"<<setw(14)<<"总库存量"<<setw(14)<<"在馆量"<<setw(14)<<"借阅量"<<setw(10)<<"是否可借"<<setw(14)<<"预约量";
cout<<setw(14)<<"借出时间"<<setw(14)<<"归还时间"<<endl;
for (int i = 0; i <(int)data.size(); i++)
{
//cout<<endl;
printbook(data[i]);
//cout<<endl;
/*cout<<setw(6)<<data[i].idnum;
cout<<setw(16)<<data[i].name;
cout<<setw(8)<<data[i].author;
cout<<setw(6)<<fixed<<setprecision(2)<<data[i].price;
cout<<setw(6)<<data[i].kind;
cout<<setw(16)<<date[i].room;
cout<<setw(6)<<data[i].sum;
cout<<setw(6)<<data[i].nowsum;
cout<<setw(6)<<data[i].BorrowCount;
cout<<setw(6)<<(data[i].borrow==0?"不可借":"可借");
cout<<setw(6)<<date[i].appointment;
cout<<setw(14)<<date[i].borrowdate;
cout<<setw(14)<<date[i].returndate<<endl;*/
}
}
int Library::SerchStudent(int id)
{
int m=-1;
for (int i = 0; i <(int)data1.size(); i++)
{
if (data1[i].id==id)
{
return i;
}
}
return m;
}
void Library::SearchBookPosWithname(string thebook)//按书名查询
{
int flag=0;
for (int i = 0; i <(int)data.size(); i++)
{
if (data[i].name==thebook)
{
printbook(data[i]);
flag=1;
}
}
if(!flag) cout<<"查无此书！\n";
}
void Library::SearchBookPosWithAuthor(string theauthor)//按作者查询
{
bool flag=false;
for (int i = 0; i <(int)data.size(); i++)
{
if (data[i].author==theauthor)
{
flag=true;
printbook(data[i]);
}
}
if(!flag) cout<<"查无此作者的书！";
}
void Library::SearchBookPosWithKind(string kind)//按种类查询
{
bool flag=false;
for (int i = 0; i <(int)data.size(); ++i)
{
if (data[i].kind==kind)
{
flag=true;
printbook(data[i]);
}
}
if(!flag) cout<<"查无此类书！";
}
int Library::SearchBookPosWithAB(string theauthor,string thebook)//按作者和书名查询
{
for (int i = 0; i <(int)data.size(); ++i)
{
if (data[i].author==theauthor&&data[i].name==thebook)
{
printbook(data[i]);
return i;
}
}
cout<<"查无此书！";
return -1;
}
int Library::SearchBookPosWithid(int id)
{
for (int i = 0; i <(int)data.size(); i++)
{
if (data[i].idnum==id)
{
return i;
}
}
return -1;
}
void Library::SortBook(int ca)  //排序
{
if (ca==0)   //按借阅量排序
{
sort(data.begin(),data.end(),cmpByCount);
}
else    //按检索号排序
{
sort(data.begin(),data.end(),cmpByidnum);
}
}
void Library::SortStudent(int ca)
{
if(ca==0)//按借阅量排序
sort(data1.begin(),data1.end(),cmpByBorrowsum);
else
sort(data1.begin(),data1.end(),cmpByid);//按读者号排序
}
void Library::Save() //存入书籍文件
{
ofstream fout("book.txt");
if (fout)
{
fout<<data.size()<<endl;
//book p;
for (int i = 0; i <(int)data.size(); i++)
{
fout<<data[i].idnum<<" "<<data[i].name<<" "<<data[i].author<<" "<<data[i].price<<" "<<data[i].kind<<" "<<data[i].room<<" "<<data[i].sum<<" "<<data[i].nowsum<<" "<<data[i].BorrowCount<<" "<<data[i].ok<<" "<<data[i].appointment<<" "<<data[i].borrowdate<<" "<<data[i].returndate<<" "<<endl;
}
fout.close();
}
}
void Library::Save1() //存入学生文件
{
ofstream fout("student.txt");
if (fout)
{
fout<<data1.size()<<endl;
//student p;
for (int i = 0; i <(int)data1.size(); i++)
{
fout<<data1[i].id<<" "<<data1[i].name<<" "<<data1[i].borrowsum<<" "<<data1[i].number<<" "<<data1[i].borrowday;
for(int j=0;j<10;j++)
{
fout<<" "<<data1[i].b[j];
}
fout<<endl;
}
fout.close();
}
}
void Library::revisebook(string name,string author)//修改图书
{
string Room,Kind;
int num,k=0;
printf("你要修改的内容是：\n");
printf("                 1.馆藏地修改\n");
printf("                 2.图书总库存量修改\n");
printf("                 3.图书所属种类修改\n");
printf("                 4.退出\n");
for (int i = 0; i <(int)data.size(); i++)
{
if (data[i].author==author&&data[i].name==name)
{
k=i;
break;
}
}
int cho;
do
{
cin>>cho;
switch(cho)
{
case 1:
{
cout<<"请输入新的馆藏地：\n";
cin>>Room;
data[k].room=Room;
break;
}
case 2:
{
cout<<"请输入新的总库存量：\n";
cin>>num;
data[k].sum=num;
break;
}
case 3:
{
cout<<"请输入图书所属新种类：\n";
cin>>Kind;
data[k].kind=Kind;
break;
}
}
}
while(cho<4);
}
void Library::Appointment(string bookname,string author)//预约图书
{
for (int i = 0; i <(int)data.size(); i++)
{
if (data[i].author==author&&data[i].name==bookname)
{
if(data[i].nowsum>0) printf("馆内有书，你无须预约！\n");
else
{
data[i].appointment++;
printf("预约成功！");
}
}
}
}
int main()
{
cout.setf(ios::left);//左对齐
Library mybook;
char mm[6];//密码数组
// mybook.PrintStudent(0);
cout<<"                                                   欢迎使用图书管理系统"<<endl;
cout<<"请选择你的登录选项：\n";
cout<<"                  1.管理员登录"<<endl;
cout<<"                  2.读者登录"<<endl;
int cho,start,kk=1;
cin>>start;
switch(start)
{
case 1:
{
char password[]="192021";
// string passwdInput;
cout<<"请输入管理员口令:";
do{
kk=1;
for(int i=0;i<6;i++)
{
mm[i]=getch();
cout<<"*";
}
cout<<endl;
for(int i=0;i<6;i++)
{
if (mm[i]!=password[i])
{
cout<<"请输入正确密码！"<<endl;
kk=0;
break;
}
}
}while(!kk);
do
{
// cout<<"                                  欢迎使用图书管理系统"<<endl;
cin.clear();
cin.sync();
//system("cls");
cout<<"              1.所有图书目录 "<<endl;
cout<<"              2.查询图书 "<<endl;
cout<<"              3.增加图书 "<<endl;
cout<<"              4.删除图书 "<<endl;
cout<<"              5.借阅图书 "<<endl;
cout<<"              6.归还图书 "<<endl;
cout<<"              7.修改图书信息 "<<endl;
cout<<"              8.本月借还统计 "<<endl;
cout<<"              9.预约书到馆情况 "<<endl;
cout<<"              10.退出 "<<endl;
cout<<"-------------------------------------------------------------------------------------------------------------------"<<endl;
cout<<"              请选择功能,输入指令 "<<endl;
cin>>cho;
switch(cho)
{
case 1:
{
int cho2;
do
{
mybook.ShowAllBook();
cout<<"-------------------------------------------------------------------------------------------------------------------------------------------------------------"<<endl;
cout<<"0:按借阅量排序 , 1:按索引号排序 ,3:退出"<<endl;
cin>>cho2;
switch(cho2)
{
case 0:
mybook.SortBook(0);
break;
case 1:
mybook.SortBook(1);
break;
}
}
while (cho2<2);
break;
}
case 2:
{
cout<<"              1.按书名查询 "<<endl;
cout<<"              2.按作者查询 "<<endl;
cout<<"              3.按种类查询 "<<endl;
cout<<"              4.按书名和作者查询 "<<endl;
cout<<"              5.退出 "<<endl;
cout<<"              请选择功能,输入指令 "<<endl;
int cho3;
do
{
string Name,AutHor,Kind;
cin>>cho3;
switch(cho3)
{
case 1:
cout<<"请输入书名！"<<endl;
cin>>Name;
mybook.SearchBookPosWithname(Name); //按书名查询
break;
case 2:
cout<<"请输入作者！"<<endl;
cin>>AutHor;
mybook.SearchBookPosWithAuthor(AutHor);//按作者查询
break;
case 3:
cout<<"请输入种类！"<<endl;
cin>>Kind;
mybook.SearchBookPosWithKind(Kind);//按种类查询
break;
case 4:
cout<<"请输入作者和书名！"<<endl;
cin>>AutHor>>Name;
mybook.SearchBookPosWithAB(AutHor,Name);//按作者和书名查询
break;
}
}
while(cho3<=4&&cho3>=1);
break;
}
case 3:         //增加图书
{
book temp;
cout<<"请输入检索号:";
cin>>temp.idnum;
while (mybook.SearchBookPosWithid(temp.idnum)>-1)
{
cout<<"检索号重复啦！~~~~(>_<)~~~~ !"<<endl;
cin>>temp.idnum;
}
cin.clear();
cin.sync();
cout<<"书名:";
cin>>temp.name;
cout<<"作者：";
cin>>temp.author;
cout<<"价格:";
cin>>temp.price;
cout<<"种类:";
cin>>temp.kind;
cout<<"馆藏地址:";
cin>>temp.room;
cout<<"数量:";
cin>>temp.sum;
temp.nowsum=temp.sum;
temp.BorrowCount=0;
temp.ok=true;
temp.appointment=0;
temp.borrowdate="0000.00.00";
temp.returndate="0000.00.00";
mybook.AddBook(temp);
mybook.Save();
cout<<"信息保存成功"<<endl;
break;
}
case 4:         //删除图书
{
string bookname,bookauthor;
cout<<"请输入书名和作者:"<<endl;
cin>>bookname>>bookauthor;
mybook.DeleteBook(bookname,bookauthor);
break;
}
case 5:         //借书
{
string bookname,bookauthor;
cout<<"请输入要借的书名和作者："<<endl;
cin>>bookname>>bookauthor;
mybook.BorrowBook(bookname,bookauthor);
mybook.Save();
break;
}
case 6:         //还书
{
string bookname,bookauthor;
cout<<"请输入要还的书名和作者："<<endl;
cin>>bookname>>bookauthor;
mybook.BackBook(bookname,bookauthor,-1);
mybook.Save();
break;
}
case 7:
{
string name,author;
cout<<"请输入要修改的书名和作者："<<endl;
cin>>name>>author;
mybook.revisebook(name,author);
break;
}
case 8:
{
printf("                     本月借书%d次\n",mybook.getborrownum());
printf("                     本月还书%d次\n",mybook.getreturnnum());
break;
}
case 9:
{
mybook.PrintToLi();
cout<<"-------------------------------------------------------------------------------------------------------------------"<<endl;
break;
}
}
}
while (cho<10);
break;
// mybook.Save();
}
case 2:
{
int bh,cho,k;
cout<<"请输入你的读者编号：\n";
cin>>bh;
if(mybook.SerchStudent(bh)==-1)
{
int n;
cout<<"你不是此系统读者，是否注册？\n";
cout<<"                    1.注册\n";
cout<<"                    2.我再想想\n";
cin>>n;
student temp;
if(n==1)
{
cout<<"请输入你的姓名:";
cin>>temp.name;
cin.clear();
cin.sync();
temp.id=mybook.GetStudent();
temp.borrowsum=0;
temp.number=0;
temp.borrowday="0000.00.00";
for(int i=0;i<10;i++)
{
temp.b[i]=0;
}
mybook.AddStudent(temp);
mybook.Save1();
//cout<<"信息保存成功"<<endl;
cout<<"                注册成功！请记住你的读者号，若忘记请联系管理员!\n";
cout<<"                姓名:"<<temp.name<<endl;
cout<<"                读者号："<<temp.id<<endl;
k=temp.id;
}
else
break;
}
else
{
k=bh;
}
do
{
//cout<<"                                  欢迎使用图书管理系统"<<endl;
cin.clear();
cin.sync();
//system("cls");
cout<<"              1.所有图书目录 "<<endl;
cout<<"              2.查询图书 "<<endl;
cout<<"              3.归还图书 "<<endl;
cout<<"              4.预约图书"<<endl;
cout<<"              5.查看我的借阅信息 "<<endl;
//  cout<<"
cout<<"              6.退出 "<<endl;
cout<<"              请选择功能,输入指令 "<<endl;
cin>>cho;
switch(cho)
{
case 1:
{
int cho2;
do
{
mybook.ShowAllBook();
cout<<"-------------------------------------------------------------------------------------------------------------------------------------------------------------"<<endl;
cout<<"0:按借阅量排序 , 1:按索引号排序 ,3:退出"<<endl;
cin>>cho2;
switch(cho2)
{
case 0:
mybook.SortBook(0);
break;
case 1:
mybook.SortBook(1);
break;
}
}
while (cho2<2);
break;
}
case 2:
{
cout<<"              1.按书名查询 "<<endl;
cout<<"              2.按作者查询 "<<endl;
cout<<"              3.按种类查询 "<<endl;
cout<<"              4.按书名和作者查询 "<<endl;
cout<<"              5.退出 "<<endl;
cout<<"              请选择功能,输入指令 "<<endl;
int cho3;
do
{
string Name,AutHor,Kind;
cin>>cho3;
switch(cho3)
{
case 1:
cout<<"请输入书名！"<<endl;
cin>>Name;
mybook.SearchBookPosWithname(Name); //按书名查询
break;
case 2:
cout<<"请输入作者！"<<endl;
cin>>AutHor;
mybook.SearchBookPosWithAuthor(AutHor);//按作者查询
break;
case 3:
cout<<"请输入种类！"<<endl;
cin>>Kind;
mybook.SearchBookPosWithKind(Kind);//按种类查询
break;
case 4:
cout<<"请输入作者和书名！"<<endl;
cin>>AutHor>>Name;
mybook.SearchBookPosWithAB(AutHor,Name);//按作者和书名查询
break;
}
}
while(cho3<=4&&cho3>=1);
break;
}
case 3:         //还书
{
string bookname,bookauthor;
cout<<"请输入要还的书名和作者："<<endl;
cin>>bookname>>bookauthor;
mybook.BackBook(bookname,bookauthor,k);
break;
}
case 4://预约图书
{
string bookname,author;
cout<<"请输入你要预约书的书名和作者:"<<endl;
cin>>bookname>>author;
mybook.Appointment(bookname,author);//预约图书
break;
}
case 5://查阅个人信息
{
//mybook.SortStudent(1);
cout<<setw(8)<<"读者号"<<setw(8)<<"姓名"<<setw(14)<<"历史借阅次数"<<setw(18)<<"现在借阅书个数"<<setw(14)<<"上次还书时间"<<endl;
mybook.PrintStudent(k);
mybook.SortStudent(0);
printf("你在所有读者中借阅量排名第 %d 位\n",mybook.SerchStudent(k)+1);
printf("所有读者中的最高借阅量是：%d次\n",mybook.readsum(1));
mybook.SortStudent(1);
cout<<"-------------------------------------------------------------------------------------------------------------------"<<endl;
break;
}
}
}
while (cho<6);
break;
}
}
mybook.Save();
mybook.Save1();
return 0;
}

测试文件如下：