C++编写的一个图书管理系统，供大家参考，具体内容如下

2018大一的课设，搬到这纪念一下，共1200多行代码

为图书管理人员编写一个图书管理系统，图书管理系统的设计主要是实现对图书的管理和相关操作，包括3个表：
图书信息表——存储图书的基本信息，包括书号、书名、作者、出版社、出版日期、存馆数量、定价等。
读者信息表——存储读者的基本信息，包括学号、姓名、学院、专业班级等。
图书借阅表——存储读者借书的相关信息，包括学号、姓名、书号、书名、借阅日期、应还日期、归还日期等。

用菜单选择方式完成了以下功能：

1、图书信息添加功能：包括书号、书名、作者、出版社、出版日期、存馆数量、定价等。

2、图书信息查询：分别按书名, 按作者名,
按出版单位等进行查询。

3、图书信息排序：按书号、书名等按升序进行排序。

4、图书信息的修改、删除：按书号或书名进行图书的修改和删除。

5、读者信息添加功能：包括学号、姓名、学院、专业、班级等。

6、读者信息查询：分别按学号、姓名、班级等进行查询。

7、读者信息排序：按学号、学院等按升序进行排序。

8、读者信息的修改、删除：按学号+姓名进行读者信息的修改和删除

9、图书借阅：输入学号+书号，如果该书图书信息表中的存馆数量大于0，则可以借出，借出相应数量后修改图书信息表中的存馆数量，在图书借阅表添加该同学的借阅。

10、图书归还：输入学号+书号，修改图书信息表中的存馆数量，在图书借阅表中记录该同学的归还时间。

11、图书借阅查询：分别按学号、书名、学院等进行查询。

#include <iostream>
#include <string>
#include <cstring>
#include <fstream>
#include <cstdlib>
#include <windows.h>
#include <winbase.h>
const int INC=20;
using namespace std;
class Date{  //Date类 ：日期类
public:
  int day;   //日
  int month;  //月
  int year;  //年
  Date(int d=1,int m=1,int y=2012){  //构造函数 默认初始日期2012.1.1
    //判断日期的合法性
    if(d>0&&d<32)day=d;else day=1;
    if(m>0&&m<13)month=m;else m=1;
    if(y>0)year=y;else year=2012;
  }
 void setDay(int d){day=d;}    //设置日
 void setMonth(int m){month=m;}  //设置月
 void setYear(int y){year=y;}   //年
 int getDay(){return day;}     //获取年月日
 int getMonth(){return month;}
 int getYear(){return year;}
 void disp(){cout<<year<<"/"<<month<<"/"<<day;}  //显示日期
 Date operator+(int dtmp);
 bool isLeapYear(int yy);       //判断是否为闰年
};
bool Date::isLeapYear(int yy){     //判断是否为闰年
 if(yy%400==0)
  return true;
 else if(yy%100!=0&&yy%4==0)
  return true;
 else return false;
}

Date Date::operator+(int dtmp){     //重载+运算符
 //bool Date::isLeapYear(int yy);
 int yy=year,mm=month,dd=day,mtmp,m2;   //年份yy  月份mm  日dd  借阅天数 dtmp
 bool flag;
 while(dtmp>=0)
 {
  if(isLeapYear(yy))
  {
   dtmp-=366;
   flag=true;
  }
  else
  {
   dtmp-=365;
   flag=false;
  }
  yy++;
 }
 if(flag)
  dtmp+=366;
 else dtmp+=365;
 yy--;
 if(isLeapYear(yy))
 {
  m2=29;
 }
 else
 {
  m2=28;
 }
 mtmp=dtmp+dd;
 int m_day[]={0,31,m2,31,30,31,30,31,31,30,31,30,31};  //每月天数
 for(;mtmp>m_day[mm];)
 {
  mtmp-=m_day[mm];
  if(mm==12)
  {
   mm=0;
   yy++;
  }
  mm++;
 }
 dd=mtmp;
 Date dt(yy,mm,dd);
 return dt;   //返回一个新日期
}
class Book{
//书号、书名、作者、出版社、出版日期、出版定价、存馆数量
private:
 string num;  //s书号
 string title;  //标题
 string author;  //作者
 string publisher;  //出版社
 Date publishdate;  //Date类：出版日期
 float price;  //价格
 int howmany;  //存馆数量
 public:
  Book(string num0="24416-5",string title0="数据结构",string author0="王红梅,胡明,王涛",
    string pub0="清华大学出版社",int bd=1,int bm=1,int by=2012,float pr=29.0,int ct=10):publishdate((bd,bm,by)){
  num=num0;title=title0;author=author0;publisher=pub0;price=pr;howmany=ct;}
  void setNum(string num0){num=num0;}   //设置书号
  void setTitle(string title0){title=title0;}  //设置标题
  void setAuthor(string author0){author=author0;}  //设置作者
  void setPublisher(string publisher0){publisher=publisher0;}  //设置出版社
  void setPublishdate(int bd,int bm,int by){Date d(bd,bm,by);publishdate=d;}  //设置出版日期，先构造在复制
  void setHowmany(int ct){howmany=ct;}  //设置库存
  void setPrice(float pr){price=pr;}  //设置价格
  string getNum(){return num;}    // 获取 书号 标题 作者 等信息
  string getTitle(){return title;}
  string getAuthor(){return author;}
  string getPublisher(){return publisher;}
  Date getPublishdate(){return publishdate;}
  int getHowmany(){return howmany;}
  float getPrice(){return price;}
  void dispABook(){
    cout <<num<< '\t'<<title<< '\t'<<author<< '\t'<<publisher<< '\t';    //获取Book信息 ：书号标题 作者 出版社 日期
    getPublishdate().disp();  //获取日期信息
    cout<< '\t'<<price<< '\t'<<howmany << '\n' ;
    }
  friend class InBook;        //友元类
  friend class ReaderBorrowBook;
};
class Reader{
//学号、姓名、学院、专业班级 读者类
private:
 string num;  //学号
 string name;  //姓名
 string college;  //专业
 string classno;  //班级
public:
  Reader(string num0="20150000",string name0="NoName",string college0="信息学院",string clsn="网络工程15-1"){
  num=num0;name=name0;college=college0; classno=clsn;}     //构造函数初始化信息
  void setNum(string num0){num=num0;}      //功能函数 设置信息
  void setName(string name0){name=name0;}
  void setCollege(string college0){college=college0;}
  void setClassno(string clsn){classno=clsn;}
  string getNum(){return num;}  //功能函数  获取信息
  string getName(){return name;}
  string getCollege(){return college;}
  string getClassno(){return classno;}
  void dispAReader(){          //显示信息
    cout <<num<< "\t"<<name<< "\t"<<college<< "\t"<<classno<< "\n";
  }
  friend class Inreader;
  friend class ReaderBorrowBook;
};

class BorrowBook
{          //借阅的书类
private:
 string num;        //学号、姓名、书号、书名、借阅日期、应还日期、归还日期
 string name;
 string booknum;
 string title;
 Date borrowdate;
 Date toreturndate;
  Date returndate;
 BorrowBook(string num0="20150000",string name0="NoName",string booknum0="24416-5",
      string title0="数据结构",int bd=1,int bm=1,int by=2012,int td=1,int tm=5,int ty=2012,int rd=1,int rm=3,int ry=2012)
   :borrowdate(bd,bm,by),toreturndate(td,tm,ty),returndate(rd,rm,ry)
   {
        num=num0;name=name0; booknum=booknum0;title=title0; //初始化
 }
  void setNum(string num0){num=num0;} //设置学号
  void setName(string name0){name=name0;}//设置名字
  void setBookNum(string num0){booknum=num0;}//设置书号
  void setTitle(string title0){title=title0;}//书名
  void setBorrowdate(int bd,int bm,int by){Date d(bd,bm,by);borrowdate=d;}//借阅日期
  void setToreturndate(int td,int tm,int ty){Date d(td,tm,ty);toreturndate=d;}//
  void setReturndate(int rd,int rm,int ry){Date d(rd,rm,ry);returndate=d;}//归还日期
  string getNum(){return num;}  //获取学号
  string getName(){return name;}//获取名字
  string getBookNum(){return booknum;}//书号
  string getTitle(){return title;}//书名
  Date getBorrowdate(){return borrowdate;}//得到日期
  Date getReturndate(){return returndate;}
  Date getToreturndate(){return toreturndate;}
  void dispBorrowBook()   //显示值
  {
    cout <<num<< "\t"<<name<< "\t"<<booknum<< "\t"<<title<< "\t";
    borrowdate.disp();cout<<"\t";
    toreturndate.disp();cout<<"\t";
    returndate.disp();cout<< "\n";
  }
  friend class InBorrowBook;
  friend class ReaderBorrowBook;

};
void string2date(string pdates,int d[])
  {
    int k=0,by,bm,bd;
    while((pdates[k]<'0'||pdates[k]>'9')&&k<pdates.length())k++;
    by=0;
    for(;pdates[k]!='/'&&k<pdates.length();k++)
      by=by*10+pdates[k]-'0';
    k++;bm=0;
    for(;pdates[k]!='/'&&k<pdates.length();k++)
      bm=bm*10+pdates[k]-'0';
    if(pdates[k]=='/'){
     k++;bd=0;
     for(;k<pdates.length();k++)
      bd=bd*10+pdates[k]-'0';
      }
    else bd=1;
    d[0]=by;d[1]=bm;d[2]=bd;
  }
class InBook
{
  public:
  Book *book;  //book[n],很多本书
  int bookcount;   //记数
  void write2Bookfile()
  {
  string num,title,author,publisher,pdates;
  Date pdate;
  int i,bd,bm,by,ct;      //多余变量吧
  float price;
  ofstream outf( "d:\\book.txt", ios::out ) ;
  //写入的文件名应该与读出的文件名相同；调试时可以取不同的文件名，以免覆盖掉原文件
  if ( !outf )
   { cerr << "File could not be open." << endl ; }
  outf<<"图书信息\n";
  for(int i=0;i<bookcount;i++)         //写入图书信息
  {
    Date pd=book[i].getPublishdate();
    outf<<book[i].getNum()<< '\t'<<book[i].getTitle()<< '\t';
    outf<<book[i].getAuthor()<< '\t'<<book[i].getPublisher()<< '\t';
    outf<<pd.getYear()<<"/"<<pd.getMonth()<<"/"<<pd.getDay();
    outf<< '\t'<<book[i].getPrice()<< '\t'<<book[i].getHowmany()<< '\n' ;
  }
  outf.close() ;         //关闭文件
  }
int inbookFile( char * fileName, int delLine)  //获取图书信息
{cout<<1<<endl;
  string num,title,author,publisher,pdates;
  Date pdate;
  int i,bd,bm,by,ct;
  float price;
  ifstream inf( fileName, ios::in ) ;
  if ( !inf )
   { cerr << "File could not be open." << endl ; return 1;  }
 char s[80];
 for ( i=1; i <= delLine; i++ )
   inf.getline( s, 80 ) ;
 i=0;
 while( !inf.eof() )// { inf.getline( s, 80 ) ;  cout << s << endl ; }
 {
   inf.getline( s, 80,'\t' ) ;//num=s;
   inf.getline( s, 80,'\t' ) ;title=s;
   inf.getline( s, 80,'\t' ) ;//author=s;
   inf.getline( s, 80,'\t' ) ;//publisher=s;
   inf.getline( s, 80,'\t' ) ;//pdates=s;
   inf>>price>>ct;
   if(title.length()>0)    i++;
   }
   bookcount=i;
   cout<<bookcount<<endl;
  inf.clear();
  inf.seekg(0,ios::beg);
  for ( i=1; i <= delLine; i++ )
   inf.getline( s, 80 ) ;
  book=new Book[bookcount+INC];
  for ( i=0; i <bookcount; i++ )
   {
   inf.getline( s, 80,'\t' ) ;num=s;
   inf.getline( s, 80,'\t' ) ;title=s;
   inf.getline( s, 80,'\t' ) ;author=s;
   inf.getline( s, 80,'\t' ) ;publisher=s;
   inf.getline( s, 80,'\t' ) ;pdates=s;
   inf>>price>>ct;//inf,getchar();
   if(title.length()>0){
    int d[3];
    if(num[0]==10)num=num.substr(1);
    string2date(pdates,d);
    by=d[0];bm=d[1];bd=d[2];
    book[i]=Book();
    book[i].setNum(num);
    book[i].setTitle(title);
    book[i].setAuthor(author);
    book[i].setPublisher(publisher);
    book[i].setPrice(price);
    book[i].setHowmany(ct);
    book[i].setPublishdate(bd,bm,by);
    }
   }
 inf.close() ;
 return bookcount;
 }
 friend class ReaderBorrowBook;
 int addbook(string num,string title,string author,string publisher,int bd,int bm,int by,float price,int ct)//添加图书信息
 {
    int i=bookcount;
    book[i]=Book();
    book[i].setNum(num);
    book[i].setTitle(title);
    book[i].setAuthor(author);
    book[i].setPublisher(publisher);
    book[i].setPrice(price);
    book[i].setHowmany(ct);
    book[i].setPublishdate(bd,bm,by);
    ++bookcount;
    return bookcount;
 }
  void searchbookbytitle(string title)     //按照书名查找
  {
    bool found=false;
    for(int i=0;i<bookcount;i++)
    if((book[i].getTitle()).find(title)!= string::npos) {
      //cout<<book[i].getTitle()<< book[i].getTitle().find(title)<<endl;
      cout<<i<<"\t";
      book[i].dispABook();
      found=true;
      //return i;
      }
      if(!found)cout<<"book title:"<<title<<" not found."<<endl;
      //return -1;
  }
  int searchbookbytitlep(string title){  //精确查找
    for(int i=0;i<bookcount;i++)
    if(book[i].getTitle()==title) {
      //cout<<book[i].getTitle()<< book[i].getTitle().find(title)<<endl;
      cout<<i<<"\t";
      book[i].dispABook();
      return i;
      }
      cout<<"book title:"<<title<<" not found."<<endl;
      return -1;
    }
  void searchbookbyauthor(string author)  //按照作者查找
  {
    bool found=false;
    for(int i=0;i<bookcount;i++)
    if((book[i].getAuthor()).find(author)!= string::npos) {
      //cout<<book[i].getTitle()<< book[i].getTitle().find(title)<<endl;
      cout<<i<<"\t";
      book[i].dispABook();
      found=true;
      //return i;
      }
      if(!found)cout<<"book author:"<<author<<" not found."<<endl;
      //return -1;
  }
  int searchbookbyauthorp(string author) //精确查找
  {
    for(int i=0;i<bookcount;i++)
    if(book[i].getAuthor()==author) {
      //cout<<book[i].getTitle()<< book[i].getTitle().find(title)<<endl;
      cout<<i<<"\t";
      book[i].dispABook();
      return i;
      }
      cout<<"book author:"<<author<<" not found."<<endl;
      return -1;
  }
  void searchbookbypub(string pub)  //按照出版社查找
  {
    bool found=false;
    for(int i=0;i<bookcount;i++)
    if((book[i].getPublisher()).find(pub)!= string::npos) {
      //cout<<book[i].getTitle()<< book[i].getTitle().find(title)<<endl;
      cout<<i<<"\t";
      book[i].dispABook();
      found=true;
      //return i;
      }
    if(!found)cout<<"book publisher:"<<pub<<" not found."<<endl;
      //return -1;
  }
  int searchbookbypubp(string pub)
  {
    for(int i=0;i<bookcount;i++)
    if(book[i].getPublisher()==pub) {
      //cout<<book[i].getTitle()<< book[i].getTitle().find(title)<<endl;
      cout<<i<<"\t";
      book[i].dispABook();
      return i;
      }
      return -1;
  }
  void searchbookbynum(string num)
  {//模糊查找包含num的串
    bool found=false;
    for(int i=0;i<bookcount;i++)
    if((book[i].getNum()).find(num)!= string::npos) {
      //cout<<book[i].getTitle()<< book[i].getTitle().find(title)<<endl;
      cout<<i<<"\t";
      book[i].dispABook();
      found=true;
 //     return i;
      }
    if(!found)cout<<"book num:"<<num<<" not found."<<endl;
 //     return -1;
  }
  int searchbookbynump(string num)
  {//精确查找等于num的串
    for(int i=0;i<bookcount;i++)
    if((book[i].getNum())==num) {
      //cout<<book[i].getTitle()<< book[i].getTitle().find(title)<<endl;
      cout<<i<<"\t";
      book[i].dispABook();
      return i;
      }
      return -1;
  }
  void sortbookbynum()   //按照书号排序
  {
    for(int i=0;i<bookcount;i++){
      int k=i;
      for(int j=i+1;j<bookcount;j++)
        if(book[j].getNum()<book[k].getNum()) k=j;
      //cout<<k<<" k&i "<<i<<" :"<<book[i].getNum()<<"---"<<book[k].getNum()<<endl;
      if(k!=i){
        Book t=book[i];book[i]=book[k];book[k]=t;
        }
      }
  }
  void sortbookbytitle()   //按照标题排序
  {
    for(int i=0;i<bookcount;i++)
    {
      int k=i;
      for(int j=i+1;j<bookcount;j++)
        if(book[j].getTitle()<book[k].getTitle()) k=j;
      if(k!=i){
        Book t=book[i];book[i]=book[k];book[k]=t;
        }
    }
  }
  void changebookbynum(string oldnum,string newnum)   //按书号改信息
  {
    int k=searchbookbynump(oldnum);
    if(k>=0)  {
      book[k].setNum(newnum);
      cout<<"changebookbynum successed:"<<endl;
      book[k].dispABook();
    }
    else cout<<"changebook failed. No book of num="<<oldnum<<endl;
  }
  void deletebookbynum(string num)   //按书号删除书目
  {
    int k=searchbookbynump(num);
    if(k>=0)  {
      cout<<"Book to be deleted :"<<endl;
      book[k].dispABook();
      book[k]=book[bookcount-1];
      cout<<"deletebookbynum successed:"<<endl;
      bookcount--;
      //return bookcount;
    }
    else cout<<"deletebook failed. No book of num="<<num<<endl;
  }

  void changebookbytitle(string oldtitle,string newtitle)
  {   //按标题修改书目
    int k=searchbookbytitlep(oldtitle);
    if(k>=0)  {
      book[k].setTitle(newtitle);

      cout<<"changebookbytitle successed:"<<endl;
      book[k].dispABook();
    }
    else cout<<"changebook failed. No book of title="<<oldtitle<<endl;
    }

  void deletebookbytitle(string title){    //按书名删除书
    int k=searchbookbytitlep(title);
    if(k>=0)  {
      cout<<"Book to be deleted :"<<endl;
      book[k].dispABook();
      book[k]=book[bookcount-1];
      cout<<"deletebookbytitle successed:"<<endl;
      bookcount--;
      //return bookcount;
    }
    else cout<<"deletebook failed. No book of title="<<title<<endl;

    }
};
class InReader{
  public:
  Reader *reader;int readercount; //reader[n],读者总数
  void write2Readerfile()   //写入读者信息
  {
    string a1,b1,c1,d1;
    ofstream fout( "d:\\reader.txt", ios::out );
    if ( !fout )
   { cerr << "File could not be open." << endl ; }
  fout<<"读者信息\n";
  for(int i=0;i<readercount;i++)
  fout<<reader[i].getNum()<<'\t'<<reader[i].getName()<<'\t'<<reader[i].getCollege()<<'\t'<<reader[i].getClassno()<<endl;
  fout.close();


    }
int inreaderFile( char * fileName, int delLine)  //获取读者信息
{cout<<1<<endl;
  string num,name,college,classno;
  int i;
  ifstream inf( fileName, ios::in ) ;
 if ( !inf )
   { cerr << "File could not be open." << endl ; return 1;  }
 char s[80];
 for ( i=1; i <= delLine; i++ )
   inf.getline( s, 80 ) ;
 i=0;
 while( !inf.eof() )// { inf.getline( s, 80 ) ;  cout << s << endl ; }
 {
   inf.getline( s, 80,'\t' ) ;//num=s;
   inf.getline( s, 80,'\t' ) ;name=s;
   inf.getline( s, 80,'\t' ) ;//college=s;
   inf.getline( s, 80 ) ;//classno=s;
   if(name.length()>0)    i++;
   }
 readercount=i;
 cout<<readercount<<endl;
  inf.clear();
  inf.seekg(0,ios::beg);
  for ( i=1; i <= delLine; i++ )
   inf.getline( s, 80 ) ;
  reader=new Reader[readercount+INC];
  for ( i=0; i <readercount; i++ )
   {
   inf.getline( s, 80,'\t' ) ;num=s;
   inf.getline( s, 80,'\t' ) ;name=s;
   inf.getline( s, 80,'\t' ) ;college=s;
   inf.getline( s, 80 ) ;classno=s;
   if(name.length()>0){
     if(num[0]==10)num=num.substr(1);
    reader[i]=Reader();
    reader[i].setNum(num);
    reader[i].setName(name);
    reader[i].setCollege(college);
    reader[i].setClassno(classno);
    }
   }
 inf.close() ;
 return readercount;

 }
  int addreader(string num,string name,string college,string classno)  //添加读者
  {
    int i=readercount;
    reader[i]=Reader();
    reader[i].setNum(num);
    reader[i].setName(name);
    reader[i].setCollege(college);
    reader[i].setClassno(classno);

    ++readercount;
    return readercount;
  }
 void searchreaderbynum(string num){    //按学号查询读者
    bool found=false;
    for(int i=0;i<readercount;i++)
    if((reader[i].getNum()).find(num)!= string::npos) {
      cout<<i<<"\t";
      reader[i].dispAReader();
      found=true;
      //return i;
      }
    if(!found)cout<<"reader of num: "<<num<<" not found"<<endl;
      //return -1;
    }
 int searchreaderbynump(string num){   //按学号精确查询读者
    for(int i=0;i<readercount;i++)
    if(reader[i].getNum()==num) {
      cout<<i<<"\t";
      reader[i].dispAReader();
      return i;
      }
      return -1;
    }
  void searchreaderbyname(string nnname)   //按名字查询读者
  {
    for(int i=0;i<readercount;i++)
    if(reader[i].getName()==nnname)
    {
      cout<<i<<"\t";
      reader[i].dispAReader();
     // return i;
    }
   // return -1;
  }
  int searchreaderbynamep(string nnname){//模糊查找
    for(int i=0;i<readercount;i++)
    if(reader[i].getName()==nnname) {
      cout<<i<<"\t";
      reader[i].dispAReader();
      return i;
      }
      return -1;
  }
  void searchreaderbyzybj(string zzy)  //按学院查找
  {
    for(int i=0;i<readercount;i++)
    if(reader[i].getCollege()==zzy)
    {
      cout<<i<<"\t";
      reader[i].dispAReader();
     // return i;
    }
     // return -1;

  }
  int searchreaderbyzybjp(string zzy){  //精确查找
    for(int i=0;i<readercount;i++)
    if(reader[i].getCollege()==zzy) {
      cout<<i<<"\t";
      reader[i].dispAReader();
      return i;
      }
      return -1;
  }
  int searchreaderbyzybjjp(string bbj){ //按专业班级查找
    for(int i=0;i<readercount;i++)
    if(reader[i].getClassno()==bbj) {
      cout<<i<<"\t";
      reader[i].dispAReader();
      return i;
      }
      return -1;
  }
  void searchreaderbyzybjj(string bbj)  //模糊查找
  {
    for(int i=0;i<readercount;i++)
    if(reader[i].getClassno()==bbj)
    {
      cout<<i<<"\t";
      reader[i].dispAReader();
     // return i;
    }
     // return -1;

  }
  void deletereaderbyxuehao(string xxhh){    //按学号删除读者
    int k=searchreaderbynump(xxhh);
    if(k>=0)  {
      cout<<"reader to be deleted :"<<endl;
      reader[k].dispAReader();
      reader[k]=reader[readercount-1];
      cout<<"deletereaderbyxuehao successed:"<<endl;
      readercount--;
      //return bookcount;
    }
    else cout<<"deletereader failed. No reader of xuehao="<<xxhh<<endl;

    }
    void deletereaderbyxingming(string xxh1h){    //按姓名删除读者
    int k=searchreaderbynamep(xxh1h);
    if(k>=0)  {
      cout<<"reader to be deleted :"<<endl;
      reader[k].dispAReader();
      reader[k]=reader[readercount-1];
      cout<<"deletereaderbyxingming successed:"<<endl;
      readercount--;
      //return bookcount;
    }
    else cout<<"deletereader failed. No reader of xingming="<<xxh1h<<endl;

    }
    void sortreaderbyxuahao()  //按学号排序
  {

    for(int i=0;i<readercount;i++)
    {
      int k=i;
      for(int j=i+1;j<readercount;j++)
        if(reader[j].getNum()<reader[k].getNum()) k=j;
      if(k!=i){
        Reader t=reader[i];reader[i]=reader[k];reader[k]=t;
        }
    }


  }
  void sortreaderbyxueyuan()  //按学院排序
  {

    for(int i=0;i<readercount;i++)
    {
      int k=i;
      for(int j=i+1;j<readercount;j++)
        if(reader[j].getCollege()<reader[k].getCollege()) k=j;
      if(k!=i){
        Reader t=reader[i];reader[i]=reader[k];reader[k]=t;
        }
    }


  }
  void changereaderbyxuehao(string old,string news)  //修改学号
  {
    int k=searchreaderbynump(old);
    if(k>=0)  {
      reader[k].setNum(news);
      cout<<"changereaderbyxuehao successed:"<<endl;
     reader[k].dispAReader();
    }
    else cout<<"changereader failed. No reader of num="<<old<<endl;
  }
  void changereaderbyxingming(string old,string news)  //修改姓名
  {
    int k=searchreaderbynamep(old);
    if(k>=0)  {
      reader[k].setName(news);
      cout<<"changereaderbyxuehao successed:"<<endl;
     reader[k].dispAReader();
    }
    else cout<<"changereader failed. No reader of num="<<old<<endl;
  }
  void changereaderbyxueyuan(string old,string news)  //修改学院
  {
    int k=searchreaderbyzybjp(old);
    if(k>=0)  {
      reader[k].setCollege(news);
      cout<<"changereaderbyxuehao successed:"<<endl;
     reader[k].dispAReader();
    }
    else cout<<"changereader failed. No reader of num="<<old<<endl;
  }

  void changereaderbyzybj(string old,string news)  //修改专业班级
  {
    int k=searchreaderbyzybjjp(old);
    if(k>=0)  {
      reader[k].setClassno(news);
      cout<<"changereaderbyxuehao successed:"<<endl;
     reader[k].dispAReader();
    }
    else cout<<"changereader failed. No reader of num="<<old<<endl;
  }
 friend class ReaderBorrowBook;
};
class InBorrowBook{
  public:
  friend class ReaderBorrowBook;
  BorrowBook *borrowbook;int borrowbookcount;  //borrowbook[n],借书总数
  void searchborrowbookbyxuehao(string b)
  {
    for(int i=0;i<borrowbookcount;i++)
    if(borrowbook[i].getNum()==b)
    {
      cout<<i<<"\t";
      borrowbook[i].dispBorrowBook();
     // return i;
    }
     // return -1;
  }
  void searchborrowbookbysm(string b)   //按书名查找借阅书
  {
    for(int i=0;i<borrowbookcount;i++)
    if(borrowbook[i].getTitle()==b)
    {
      cout<<i<<"\t";
      borrowbook[i].dispBorrowBook();
     // return i;
    }
     // return -1;
  }

  void write2BorrowBookfile()  //写入借书文件
  {

    ofstream ffout( "d:\\borrowbook.txt", ios::out );
    if ( !ffout )
   { cerr << "File could not be open." << endl ; }
  ffout<<"借阅信息\n";
  for(int i=0;i<borrowbookcount;i++)
  {
    Date bbb=borrowbook[i].getBorrowdate();
    Date ddd=borrowbook[i].getToreturndate();
    Date ccc=borrowbook[i].getReturndate();
    ffout<<borrowbook[i].getNum()<<'\t'<<borrowbook[i].getName()<<'\t'<<borrowbook[i].getBookNum()<<'\t'<<borrowbook[i].getTitle()<<'\t'<<bbb.getYear()<<"/"<<bbb.getMonth()<<"/"
<<bbb.getDay()<<'\t'<<ddd.getYear()<<"/"<<ddd.getMonth()<<"/" <<ddd.getDay()<<'\t'<<ccc.getYear()<<"/"<<ccc.getMonth()<<"/" <<ccc.getDay()<<endl;  }

  }
int inborrowbookFile( char * fileName, int delLine)  //获取借阅图书信息
{cout<<1<<endl;
  string num,name,booknum,title;
  string borrowdates;
 string toreturndates;
  string returndates;
  int i;
  ifstream inf( fileName, ios::in ) ;
 if ( !inf )
   { cerr << "File could not be open." << endl ; return 1;  }
 char s[80];
 for ( i=1; i <= delLine; i++ )
   inf.getline( s, 80 ) ;
 i=0;
 while( !inf.eof() )
 {
   inf.getline( s, 80,'\t') ;
   inf.getline( s, 80,'\t' ) ;
   inf.getline( s, 80,'\t' ) ;
   inf.getline( s, 80 ) ;
   if(strlen(s)>1)    i++;
   }
 borrowbookcount=i;
 cout<<borrowbookcount<<endl;
  inf.clear();
  inf.seekg(0,ios::beg);
  for ( i=1; i <= delLine; i++ )
   inf.getline( s, 80 ) ;
  borrowbook=new BorrowBook[borrowbookcount+INC];
  for ( i=0; i <borrowbookcount; i++ )
   {
   inf.getline( s, 80,'\t' ) ;num=s;
   inf.getline( s, 80,'\t' ) ;name=s;
   inf.getline( s, 80,'\t' ) ;booknum=s;
   inf.getline( s, 80,'\t' ) ;title=s;
   inf.getline( s, 80,'\t' ) ;borrowdates=s;
   inf.getline( s, 80,'\t' ) ;toreturndates=s;
   inf.getline( s, 80,'\n' ) ;returndates=s;
   if(name.length()>0){
     if(num[0]==10)num=num.substr(1);
    borrowbook[i]=BorrowBook();
    int d[3];
    string2date(borrowdates,d);
    int by=d[0],bm=d[1],bd=d[2];
    borrowbook[i].setBorrowdate(bd,bm,by);
    string2date(toreturndates,d);
    by=d[0];bm=d[1];bd=d[2];
    borrowbook[i].setToreturndate(bd,bm,by);
    string2date(returndates,d);
    by=d[0];bm=d[1];bd=d[2];
    borrowbook[i].setReturndate(bd,bm,by);
    borrowbook[i].setNum(num);
    borrowbook[i].setName(name);
    borrowbook[i].setBookNum(booknum);
    borrowbook[i].setTitle(title);
    }
   }
 inf.close() ;

 return borrowbookcount;
 }
 friend class ReaderBorrowBook;
 int searchbyreaderbook(string readernum,string booknum)   //按学号查询
 {
    for(int i=0;i<borrowbookcount;i++)
    if((borrowbook[i].getNum())==readernum&&(borrowbook[i].getBookNum())==booknum) {
      cout<<i<<"\t";
      borrowbook[i].dispBorrowBook();
      return i;
      }
      return -1;

 }
};
class ReaderBorrowBook{

  InBook bk;  //声明三个类
  InReader rd;
  InBorrowBook bb;
  public:
  void write2file(){
    bk.write2Bookfile();   //写入文件保存信息
    rd.write2Readerfile();
    bb.write2BorrowBookfile();

    }
  void init(){                 //打开三个文件
    bk.inbookFile( "d:\\book.txt", 1);
    rd.inreaderFile( "d:\\reader.txt", 1);
    bb.inborrowbookFile( "d:\\borrowbook.txt", 1);
    }
  void dispBook(){           //显示书信息
    for ( int i=0; i <bk.bookcount; i++ )
      {cout <<i<<":";
      bk.book[i].dispABook();}
    }
  void dispReader(){          //显示读者信息
    for ( int i=0; i <rd.readercount; i++ )
      {cout <<i<<":";rd.reader[i].dispAReader();}
    }
  void dispBorrowbook(){          //借书信息查询
    for ( int i=0; i <bb.borrowbookcount; i++ )
      {cout <<i<<":";bb.borrowbook[i].dispBorrowBook();}
     }
  void dispCount(){             //总数显示
    cout<<bk.bookcount<<endl;cout<<rd.readercount<<endl;cout<<bb.borrowbookcount<<endl;
    }
  void addbook()  //添加书
  {

    string num,title,author,publisher;
    char num0[80],tit[80],auth[80],pub[80];
    int pd,pm,py,howmany;
    float price;
    Date publishdate;
    cout<<"书号、书名、作者、出版社、出版日期(yyyy mm dd)、定价、存馆数量"<<endl;

    string num1="24416-5",title0="数据结构",author0="王红梅,胡明,王涛",pub0="清华大学出版社";
    int pd0=1,pm0=1,py0=2012;
    float price0=29.0;
    int howmany0=10;
    //bookcount=
    cin>>num1>>title0>>author0>>pub0>>pd0>>pm0>>py0>>price0>>howmany0;

    bk.addbook(num1,title0,author0,pub0,pd0,pm0,py0,price0,howmany0);
    bk.write2Bookfile();
    int i=bk.bookcount-1;
    cout <<i<<":";
    bk.book[i].dispABook();
  }
  void addreader(){             //添加读者
    string num,name,college,classno;
    char num0[80],nam[80],coll[80],clas[80];
    cout<<"学号\t姓名\t学院\t专业班级:"<<endl;

    string num1="20151000",name0="王涛",college0="computer",class0="network class 1";
    cin>>num1>>name0>>college0>>class0;
    rd.addreader(num1,name0,college0,class0);
    rd.write2Readerfile();
    int i=rd.readercount-1;
    cout <<i<<":";
    rd.reader[i].dispAReader();
    }
  void searchBook(){             //查书
    cout<<"2．图书信息查询：分别按书名, 按作者名, 按出版社进行查询。"<<endl;
    char tit[80];
    string title="数据结构",author="胡明",pub="机械工业";
    int i,j,k,select;
    while(1){
      cout<<"图书信息查询："<<endl;
      cout<<"1．按书名查询"<<endl;
      cout<<"2．按作者名查询"<<endl;
      cout<<"3．按出版社查询"<<endl;
      cout<<"0. return"<<endl;
      cin>>select;
      cin.get();
      switch(select){
        case 1:
          cout<<"书名:";
          getline(cin,title,'\n');
          bk.searchbookbytitle(title);
          break;
        case 2:
          cout<<"作者名:";
          getline(cin,author,'\n');
          bk.searchbookbyauthor(author);
          break;
        case 3:
          cout<<"出版社:";
          getline(cin,pub,'\n');
          bk.searchbookbypub(pub);break;
        case 0:return;
      }
    }
    }
  void sortbook(){      //排序
    int select;
    cout<<"3．图书信息排序：按书号、书名等按升序进行排序。"<<endl;
    cout<<"图书信息排序："<<endl;
    cout<<"1．按书号排序"<<endl;
    cout<<"2．按书名排序"<<endl;
    cout<<"0. return"<<endl;
    cin>>select;
    switch(select){
      case 1:
          cout<<"书号:";
          bk.sortbookbynum();
          dispBook();
          break;
      case 2:
          cout<<"书名:";
          bk.sortbookbytitle();
          dispBook();
          break;
      case 0:return;
      }
    }
  void editbook(){         //编辑书
    string oldtitle="VisualBasic 程序设计教程",newtitle="VisualBasic 程序设计教程-C",oldnum="40667",newnum="40667-C";
    int select;
    cout<<"4．图书信息的修改、删除：按书号或书名进行图书的修改和删除。"<<endl;
    while(1){
    cout<<"图书信息的修改、删除："<<endl;
    cout<<"1．按书号修改"<<endl;
    cout<<"2．按书号删除"<<endl;
    cout<<"3．按书名修改"<<endl;
    cout<<"4．按书名删除"<<endl;
    cout<<"0. return"<<endl;
    cin>>select;
    cin.get();
    switch(select){
      case 1:
          cout<<"old书号:";
          getline(cin,oldnum,'\n');
          cout<<"new书号:";
          getline(cin,newnum,'\n');
          cout<<"changebookbynum: "<<oldnum<<" to "<<newnum<<endl;
          bk.changebookbynum(oldnum,newnum);
          //dispBook();
          break;
      case 2:
          cout<<"delete书号:";
          getline(cin,oldnum,'\n');
          cout<<"delete书号:"<<oldnum<<endl;
          bk.deletebookbynum(oldnum);
          //dispBook();
          break;
      case 3:
          cout<<"old书名:";
          getline(cin,oldtitle,'\n');
          cout<<"new书名:";
          getline(cin,newtitle,'\n');
          cout<<"changebookbytitle: "<<oldtitle<<" to "<<newtitle<<endl;
          bk.changebookbytitle(oldtitle,newtitle);
          //dispBook();
          break;
      case 4:
          cout<<"delete书名:";
          getline(cin,oldtitle,'\n');
          cout<<"deletebookbytitle: "<<oldtitle<<endl;
          bk.deletebookbytitle(oldtitle);
          //dispBook();
          break;
      case 0:
           bk.write2Bookfile();
           cout<<"修改成功"<<endl;
      return;
      }
    }
  }
  void readerborrowabook(){            //借阅
    cout<<"9．图书借阅：输入学号+书号，如果该书图书信息表中的存馆数量大于0，则可以借出，"<<endl;
    string rdnum="20061709",booknum="33071",name,title;
    int select,rdpos,bookpos,y,m,d;
    while(1){
      cout<<"图书借阅："<<endl;
      cout<<"1．借书"<<endl;
      cout<<"0．return"<<endl;
      cin>>select;
      cin.get();
      if(select==0)return;
      cout<<"borrow学号:";
      getline(cin,rdnum,'\n');
      cout<<"borrow书号:";
      getline(cin,booknum,'\n');
      bookpos=bk.searchbookbynump(booknum);
      rdpos=rd.searchreaderbynump(rdnum);
      if(bookpos>0&&rdpos>0){
        int hm=bk.book[bookpos].getHowmany();
        if(hm>0){
          name=rd.reader[rdpos].getName();
          title=bk.book[bookpos].getTitle();
          bk.book[bookpos].setHowmany(hm-1); //修改图书信息表中的存馆数量
          bb.borrowbook[bb.borrowbookcount].setNum(rdnum);
          bb.borrowbook[bb.borrowbookcount].setBookNum(booknum);
          bb.borrowbook[bb.borrowbookcount].setName(name);
          bb.borrowbook[bb.borrowbookcount].setTitle(title);

          SYSTEMTIME ct;
          GetLocalTime(&ct);//取系统时间，如果用GetSystemTime(&ct);那么获取的是格林尼治标准时间
          y=ct.wYear;
          m=ct.wMonth;
          d=ct.wDay;
          Date toret=Date(d,m,y)+60;
          bb.borrowbook[bb.borrowbookcount].setBorrowdate(d,m,y);
          bb.borrowbook[bb.borrowbookcount].setToreturndate(toret.getDay(),toret.getMonth(),toret.getYear());
          bb.borrowbook[bb.borrowbookcount].setReturndate(1,1,1);
          bb.borrowbookcount++;
          }
        else cout<<booknum<<" 存馆数量=0"<<". can't be borrowed. "<<endl;
        }
      else{
        if(bookpos<0)cout<<"No book "<<booknum<<". can't borrow!"<<endl;
        if(rdpos<0)cout<<"No reader "<<rdnum<<". can't borrow!"<<endl;
      }
    }
  }
  void readerreturnabook(){  //归还
    cout<<"10．图书归还：输入学号+书名，修改图书信息表中的存馆数量，图书借阅表中记录该同学的归还日期。"<<endl;
    char tit[80];
    string rdnum="20061709",booknum="33071",name,title;
    int selectttt,rdpos,bookpos,y,m,d;
    while(1){
      cout<<"图书归还："<<endl;
      cout<<"1．还书"<<endl;
      cout<<"0．return"<<endl;
      cin>>selectttt;
      cin.get();
      if(selectttt==0) {return;}
      cout<<"return学号:"<<endl;
      getline(cin,rdnum,'\n');

      cout<<"return书号:";
      getline(cin,booknum,'\n');

      bookpos=bk.searchbookbynump(booknum);
      rdpos=rd.searchreaderbynump(rdnum);
      int k;
      k=bb.searchbyreaderbook(rdnum,booknum);
      if(k>=0){
      if(bookpos>0&&rdpos>0){
          bk.book[bookpos].setHowmany(bk.book[bookpos].getHowmany()+1);
          SYSTEMTIME ct;
          GetLocalTime(&ct);//取系统时间
          y=ct.wYear;
          m=ct.wMonth;
          d=ct.wDay;
          bb.borrowbook[k].setReturndate(d,m,y);
        }

      else{
        if(bookpos<0)cout<<"No book "<<booknum<<". can't return!"<<endl;
        if(rdpos<0)cout<<"No reader "<<rdnum<<". can't return!"<<endl;
      }}
      else cout<<"No borrowbook "<<endl;
    }
    }

  void searchreader()
  {
    string xuehao ,xingming,zzy,bbj;
    cout<<"6.读者信息查询：分别按学号、姓名、班级等进行查询。"<<endl;
    int selectt;
    while(1){
    cout<<"读者信息查询："<<endl;
    cout<<"1．按学号查询"<<endl;
    cout<<"2．按姓名查询"<<endl;
    cout<<"3. 按学院查询"<<endl;
    cout<<"4. 按专业班级查询"<<endl;
    cout<<"0. return"<<endl;
    cin>>selectt;
    cin.get();
    switch(selectt)
    {
      case 1: cout<<"学号："<<endl;
      getline(cin,xuehao,'\n');
      cout<<1<<endl;
      rd.searchreaderbynum(xuehao);
      break;
      case 2:cout<<"姓名："<<endl;
      getline(cin,xingming,'\n');
      rd.searchreaderbyname(xingming);
      break;
      case 3:cout<<"学院： "<<endl;
      getline(cin,zzy,'\n');
      rd.searchreaderbyzybj(zzy);
      break;
      case 4:cout<<"专业班级： "<<endl;
      getline(cin,bbj,'\n');
      rd.searchreaderbyzybjj(bbj);
      break;
      case 0: return;

    }
    }

  }

  void sortreader()
  {
    int selectt1;
    cout<<"7：读者信息排序：按学号、学院等按升序进行排序。"<<endl;
    cout<<"读者信息排序："<<endl;
    cout<<"1．按学号排序"<<endl;
    cout<<"2．按学院排序"<<endl;
    cout<<"0. return"<<endl;
    cin>>selectt1;
    switch(selectt1){
      case 1:
          cout<<"学号:";
          rd.sortreaderbyxuahao();
          dispReader();
          break;
      case 2:
          cout<<"学院:";
          rd.sortreaderbyxueyuan();
          dispReader();
          break;
      case 0:return;
      }
    }
void editreader()
{
  string xh,xm,xy,bj,newxh,newxm,newxy,newbj;

  int select2;
  cout<<"8．学生信息的修改、删除：。"<<endl;

    while(1){
    cout<<"学生信息的修改、删除："<<endl;
    cout<<"1．按学号修改"<<endl;
    cout<<"2．按学号删除"<<endl;
    cout<<"3．按姓名修改"<<endl;
    cout<<"4．按姓名删除"<<endl;
    cout<<"0. return"<<endl;
    cin>>select2;
    cin.get();
    switch(select2)
    {
      case 1:cout<<"要修改学生的学号为："<<endl;
      cin>>xh;
      cout<<"请输入新学号"<<endl;
      cin>>newxh;
      rd.changereaderbyxuehao(xh,newxh);
      break;
      case 2:cout<<"要删除的学生学号为："<<endl;
      cin>>xh;
      rd.deletereaderbyxuehao(xh);
      break;
      case 3:cout<<"修改的学生姓名为："<<endl;
      cin>>xm;
      cout<<"请输入修改后的姓名："<<endl;
      cin>>newxm;
      rd.changereaderbyxingming(xm,newxm);
      break;
      case 4:cout<<"要删除的学生姓名为："<<endl;
      cin>>xm;
      rd.deletereaderbyxingming(xm);
      break;
      case 0: rd.write2Readerfile();
      cout<<"修改成功";
      return;

    }

}
}
  void searchreaderborrowbook()
  {
    int bz;
    string xxh,ssm;
    while(1)
    {cout<<"11．图书借阅查询：分别按学号、书名、学院等进行查询。"<<endl;
    cout<<"1.按学号查询"<<endl;
    cout<<"2.按书名查询"<<endl;
    cout<<"0.return"<<endl;
    cin>>bz;
    switch(bz)
  {
      case 1:cout<<"请输入学号"<<endl;
      cin>>xxh;
      bb.searchborrowbookbyxuehao(xxh);break;
      case 2:cout<<"请输入书名"<<endl;
      cin>>ssm;bb.searchborrowbookbysm(ssm);break;
      case 0:
      return;

    }


  }
  }
};
int main(){
  ReaderBorrowBook rbb;
  rbb.init();
  rbb.dispBook();
  rbb.dispReader();
  rbb.dispBorrowbook();
  rbb.dispCount();
  int select;
  while(1){
    cout<<"菜单选择功能："<<endl;
    cout<<"1．图书信息添加功能：包括书号、书名、作者、出版社名称、存馆数量、定价等"<<endl;
    cout<<"2．图书信息查询：分别按书名, 按作者名, 按出版单位等进行查询。"<<endl;
    cout<<"3．图书信息排序：按书号、书名等按升序进行排序。"<<endl;
    cout<<"4．图书信息的修改、删除：按书号或书名进行图书的修改和删除。"<<endl;
    cout<<"5．读者信息添加功能：包括学号、姓名、学院、专业班级等。"<<endl;
    cout<<"6．读者信息查询：分别按学号、姓名、班级等进行查询。"<<endl;
    cout<<"7．读者信息排序：按学号、学院等按升序进行排序。"<<endl;
    cout<<"8．读者信息的修改、删除：按学号+姓名进行读者信息的修改和删除。"<<endl;
    cout<<"9．图书借阅：输入学号+书号，如果该书图书信息表中的存馆数量大于0，则可以借出,"<<endl;
    cout<<"借出相应数量后修改图书信息表中的存馆数量，在图书借阅表添加该同学的借阅。"<<endl;
    cout<<"10．图书归还：输入学号+书名，修改图书信息表中的存馆数量，在图书借阅表中记录该同学的归还时间。"<<endl;
    cout<<"11．图书借阅查询：分别按学号、书名、学院等进行查询。"<<endl;
    cout<<"0. exit"<<endl;
    cin>>select;
    switch(select){
      case 1:rbb.addbook();  rbb.dispCount();break;
      case 2:rbb.searchBook();break;
      case 3:rbb.sortbook();break;
      case 4:rbb.editbook();break;
      case 5:rbb.addreader();  rbb.dispCount();break;
      case 6:rbb.searchreader();break;
      case 7:rbb.sortreader();break;
      case 8:rbb.editreader();break;
      case 9:rbb.readerborrowabook();break;
      case 10:rbb.readerreturnabook();break;
      case 11:rbb.searchreaderborrowbook();break;
      case 0:rbb.write2file();exit(0);
      }
    }
  return 0;
}

部分截图

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持源码搜藏网。