爱华网#include <stdlib.h>
#include <conio.h>
struct BOOK
{
int id,usr[10],total,store,days[10];
char name[30],author[20];
}books[100];
/*上面是结构体的定义，用于存放书籍及借书的信息。*/
void page_title(char *menu_item)
{
system("cls");
printf(">>> 图 书 管 理 系 统 <<<nn- %s -nn",menu_item);
}
/*上面是打印页眉的函数，同时通过参数menu_item，可以显示当前的状态。*/
void return_confirm(void)
{
printf("n按任意键返回……n");
getch();
}
/*上面是返回前请求确认的函数，以便在返回前观察结果*/
int search_book(void)
{
int n,i; printf("请输入图书序号:");
scanf("%d",&i);
for(n=0;n<100;n++)
{
if(books[n].id==i)
{
printf("书名:%sn",books[n].name);
printf("作者:%sn",books[n].author);
printf("存数:%dn",books[n].store);
printf("总数:%dn",books[n].total);
return n;
} }
printf("n输入错误或无效图书序号.n");
return -1;
}
/*上面的函数是在数组中找到图书号匹配的记录，
显示其信息并返 回数组下标，如果找不到相应记录则提示错误并返回-1。*/
void book_out(void)
{
int n,s,l,d; page_title("借阅图书");
if((n=search_book())!=-1&&books[n].store>0)
{
printf("请输入借书证序号:");
scanf("%d",&s);
printf("请输入可借天数:");
scanf("%d",&d);
for(l=0;l<10;l++)
{
if(books[n].usr[l]==0)
{
books[n].usr[l]=s; books[n].days[l]=d; break;
}
}
books[n].store--;
}
if(n!=-1&&books[n].store==0)
printf("此书已经全部借出.n");
return_confirm();
} /*上面是借书的函数，首先调用找书函数*/
void book_in(void)
{
int n,s,l; page_title("归还图书");
if((n=search_book())!=-1&&books[n].store<books[n].total)
{
printf("借阅者图书证列表:n");
for(l=0;l<10;l++)
if (books[n].usr[l]!=0)
printf("[%d] - %d天n",books[n].usr[l],books[n].days[l]);
printf("请输入借书证序号:");
scanf("%d",&s);
for(l=0;l<10;l++)
{
if(books[n].usr[l]==s)
{
books[n].usr[l]=0;
books[n].days[l]=0;
break;
}
}
books[n].store++;
}
if(n!=-1&&books[n].store==books[n].total)
printf("全部入藏.n");
return_confirm();
}
void book_add(void)
{
int n;
page_title("注册新书");
for(n=0;n<100;n++)
if(books[n].id==0) break;
printf("序号:");
scanf("%d",&books[n].id);
printf("书名:");
scanf("%s",&books[n].name);
printf("作者:");
scanf("%s",&books[n].author);
printf("数量:");
scanf("%d",&books[n].total);
books[n].store=books[n].total;
return_confirm();
}
void book_del(void)
{
int n;
page_title("注销旧书");
if((n=search_book())!=-1) books[n].id=0;
printf("该书已注销.n");
return_confirm();
}
void main(void)
{
menu: page_title("操作选单");
printf("请用数字键选择操作nn");
printf("1 借阅图书n2 归还图书nn");
printf("3 注册新书n4 注销旧书nn");
printf("n0 退出n");
switch(getch())
{
case '1' : book_out();break;
case '2' : book_in();break;
case '3' : book_add();break;
case '4' : book_del();break;
case '0' : exit(0);
}
goto menu;
}
#include<iostream>
#include<iomanip>
#include<string>
#include<fstream>
#include<stdio.h>
using namespace std;
const int Maxb=10000; //最多的图书
class Book//图书类
{
int tag; //删除标记1:已删0:未删
int number; //ISBN书号
char name[20]; //书名
char author[10]; //主编
char number2[10];//版次
char position[20];//出版社
char time[20];//出版年
int price;//定价
int onshelf; //是否在架1:在架0:已借
public:
Book() {}
char *getname() { return name; } //获取姓名
int getnumber() { return number; } //获取ISBN书号
int gettag() { return tag; } //获取删除标记
char *getauthor() {return author;} //获取主编
char *getnumber2() {return number2;} //获取版次
char *getposition() {return position;} //获取出版社
char *gettime() {return time;} //获取出版年
char getprice() {return price;} //获取图书定价
void delbook() { tag=1; } //删除图书
void addbook(int n,char *na,char *au,char *n2,char *da,char *ti,int pr) //增加图书
{
tag=0;
number=n;
price=pr;
strcpy(name,na);
strcpy(author,au);
strcpy(number2,n2);
strcpy(position,da);
strcpy(time,ti);
onshelf=1;
}
void disp() //输出图书
{
cout << setw(10) << number << setw(10) << name << setw(10)
<< setw(10)<<author<<setw(10)<<number2<<setw(10)<<position<<setw(10)<<time<<setw(10)<<price<<endl;
}
};
class BDatabase //图书库类
{
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
{
top=-1;
}
int addbook(int n,char *na,char *au, char *n2, char *da,char *ti,int pr) //增加图书
{
Book *p=search1(n);
if (p==NULL)
{
top++;
book[top].addbook(n,na,au,n2,da,ti,pr);
return 1;
}
return 0;
}
Book *search1(int bookid) //查找图书
{
for (int i=0;i<=top;i++)
if (book[i].getnumber()==bookid &&
book[i].gettag()==0)
return &book[i];
return NULL;
}
Book *search2(int bookid,char *name) //按书名查找图书
{
for(int i=0;i<=top;i++)
if(strcmp(book[i].getname(),name)==0)
{bookid=book[i].getnumber();
return &book[i];
}
return NULL;
}
Book *search3(int bookid,char *author) //按主编查找图书
{
for(int i=0;i<=top;i++)
if(strcmp(book[i].getauthor(),author)==0)
{bookid=book[i].getnumber();
return &book[i];
}
return NULL;
}
void bookdata(); //图书库维护
void disp()
{
cout<<setw(10)<<"图书书号"<<setw(10)<<"图书名字"<<setw(10)<<"图书主编"<<setw(10)<<"版次"<<setw(10)<<"出版社"<<setw(10)<<"出版年"<<setw(10)<<"价格"<<endl<<endl<<endl<<endl;
for (int i=0;i<=top;i++)
if (book[i].gettag()==0)
book[i].disp();
}
~BDatabase() //析构函数,将book[]写入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()
{
int choice=1;
int choice2=1;
int choice3=1;
int choice4;
char bname[40];
char editor[40];
char banci[40];
char position[40];
char year[40];
int value;
int bookid;
Book *b;
while (choice!=0)
{
cout<<endl<<endl;
cout<<" **************************** "<<endl;
cout<<" **** 1添加图书 **** "<<endl;
cout<<" **** 3 删除图书 **** "<<endl;
cout<<" **** 4 图书查询 **** "<<endl;
cout<<" **** 5 显示图书 **** "<<endl;
cout<<" **** 6 全部删除 **** "<<endl;
cout<<" **** 7 借书 **** "<<endl;
cout<<" **** 8 还书 **** "<<endl;
cout<<" **** 0 退出 **** "<<endl;
cout<<" ****************************"<<endl<<endl;
cout<<endl<<"请按键选择您需要的操作:";
cin>>choice;
while(choice!=1&&choice!=2&&choice!=3&&choice!=4&&choice!=5&&choice!=6&&choice!=0){
cout<<endl<<" ** 您输入的编号在菜单里不存在，请重新输入 **"<<'a'<<endl<<endl;
cout<<" 请选择您需要的操作:";
cin>>choice;
}
switch (choice)
{
case 1:
cout <<"输入ISBN书号（一定为数字否则会异常）:";
cin >> bookid;
cout <<"输入书名:";
cin >> bname;
cout <<"输入主编:";
cin >>editor;
cout <<"输入版次（一定为数字否则会异常）:";
cin>>banci;
cout<<"输入出版社:";
cin>>position;
cout<<"输入出版年（一定为数字否则会异常）:";
cin>>year;
cout<<"输入价格（一定为数字否则会异常）:";
cin>>value;
addbook(bookid,bname,editor,banci,position,year,value);
cout<<"ISBN书号"<<bookid<<"添加成功,如需返回主菜单请按1,退出系统请按0（一定要输入数字）";
cin>>choice4;
while (choice4!=0&&choice4!=1)
{
cout<<"输入错误请重新输入"<<endl;
cin>>choice4;}
switch (choice4)
{
case 1:
choice=1;
break;
case 0:
choice=0;
break;}
break;
case 3:
cout << " 输入ISBN书号:";
cin >> bookid;
b=search1(bookid);
if (b==NULL)
{
cout << " 该图书不存在" << endl;
break;
}
b->delbook();
break;
case 4:
cout<<"查找方式:"<<endl<<"1按ISBN书号查询 2按书名查询 3按主编查询 0退出:";
cin>>choice3;
switch(choice3)
{
case 1:
{cout << " 输入ISBN书号:"; //按ISBN书号查询
cin >> bookid;
b=search1(bookid);
if (b==NULL)
{
cout << " 该图书不存在" << endl;
break;
}
b->disp();
}
break;
case 2:
{
cout<<"请输入书名:";
cin>>bname;
b=search2(bookid,bname);
if(b==NULL)
{
cout<<"该图书不存在啊！"<<endl;
break;
}
b->disp();
}
break;
case 3:
{
cout<<"请输入主编:";
cin>>editor;
b=search3(bookid,editor);
if(b==NULL)
{
cout<<"该主编不存在!"<<endl;
break;
}
b->disp();
}
break;
}
break;
case 5:
disp();
break;
case 6:
clear();
break;
}
}
cout<<endl<<" ****** 慢走 ******"<<endl<<endl<<endl;
};
int main()
{
BDatabase BookDB;
cout<<endl<<endl<<endl;
cout<<" Welcome to the library of SCU "<<endl;
cout<<" 欢 迎 来 到 四 川 大 学 图 书 馆 "<<endl;
cout<<endl<<endl<<"请输入0进入图书馆"<<endl;
int w;
cin>>w;
if(w==0)
BookDB.bookdata();
system("pause");
return 0;
}
