问题描述
- c++图书管理系统 有做过的来
-
文件读写有问题，结构体数据保存时包含了地址，怎么区分开啊？
//// new.cpp : 定义控制台应用程序的入口点。
//
#include "stdafx.h"
#include "iostream"
#include "string"
#include
#include
#include
#include "fstream"
#define UNIT_COST 0.1 //每本书每天0.1元
#define MAX_DAY 60 //最长借阅 60天
#define MAX_RENEW 30 //续借30天
#define MAX_RENEW_NUM 1 //续借次数 1
using namespace std;
typedef struct BOOK
{
char sheet_number[10];//编号 名称 类别 作者 出版社 出版时间 价格 数量 备注
char name[10];
char writer[10];
char press[10];
char publication_date[10];
int sort;
int price;
int note;
struct BOOK *next;
}Book,*Booklist;
BOOK *a;
struct Password
{
string name;//用户名
string password;//密码
//struct Password *next;
}pass={"admin","123456"},*Passlist;
Password *c;
typedef struct READER
{
char card_number[10];//读者证号 姓名 单位 当前借阅数 密码
char name[10];
char unit[10];
int current_borrow;
char password[6];
struct READER *next;
}*Reader;
READER *b;
class Log_in
{
public:
int Administrator_Load();//管理员登陆
int Reader_Load(Reader &b);//读者登陆
int Log();//登陆界面
int Borrow_Book(Booklist &a,Reader &b);//借书
int Return_Book(Booklist &a,Reader &b);//还书
void Search_Book(Booklist &a);//图书查询
void Load_Book(Booklist &a);
void Delete_Book(Booklist &a);
void Manage_load(Reader &b);
void Manage_Delet(Reader &b);
private:bool Book_State(string sheet_number);//图书状态 借/还 int pay_cost;//缴费};
int Log_in::Administrator_Load()
{
Password *p;
p=&pass;
int n=0,f=0;
int i=1;
string na,pas;
while(i!=3)
{
cout<<"--------------------------------------------------------------------------------"<
cout
cout
//cout
cin>>na;
cout<
cout
cin>>pas;
cout<
if(na!=p->name||pas!=p->password)
{
cout<<"输入错误，重新输入！"<<endl;
system("cls");
i++;
}
else
{
cout<<"登录成功！"<<endl;
system("cls");
f=1;
}if(i==3)break; else if(f==1) { while(n!=3) { cout<<"--------------------------------------------------------------------------------"<<endl; cout<<" 管理面板 "<<endl; cout<<" 1.增添读者 2.删除读者 "<<endl; cout<<" 3.增添图书 4.删除图书 "<<endl; cin>>n; system("cls"); switch(n) { case 1:Manage_load(b); system("cls");break; case 2:Manage_Delet(b);system("cls");break; case 3:Load_Book(a); system("cls");break; case 4:Delete_Book(a);system("cls");break; case 5:cout<<" "<<endl;break; } }break; }break; } system("cls"); return 0;}
BOOK *Creat_BOOK() //初试化图书链表
{
BOOK *p;p=new BOOK;
if(!p) exit(1);
p->next=NULL;
return p;
}
READER *Creat_READER() //初试化图书链表
{
READER *p;p=new READER;
if(!p) exit(1);
p->next=NULL;
return p;
}
int Log_in::Reader_Load(Reader &b)
{READER p; //p=new READER; //p=b; ifstream file2("Reader.dat",ios::binary|ios::in); if(!file2) cerr<<"file2 error!"<<endl; int n=0,f=0; int i=1; string na,pas; while(i!=3) { system("cls"); cout<<"--------------------------------------------------------------------------------"<<endl; cout<<" 读者登录 "; cout<<" 证件号: "<<endl; //cout<<" 按 3 返回上级菜单 "<<endl; cin>>na; cout<<endl; cout<<" 密码: "; cin>>pas; cout<<endl; while(!file2.eof()) { file2.read((char*)&p,sizeof(p)); cout<<p.card_number<<endl; if(na!=p.card_number&&pas!=p.password) {cout<<"输入错误，重新输入！"<<endl; system("cls");i++;} else { cout<<"登录成功！"<<endl; system("cls"); f=1; break; } } } if(f==1) { while(n!=4) { cout<<"--------------------------------------------------------------------------------"<<endl; cout<<" 图书管理 "<<endl; cout<<" 1.查询图书 2.借书 "<<endl; cout<<" 3.还书 4.返回上级菜单 "<<endl; cin>>n; switch(n) { case 1:Search_Book(a);cout<<endl; system("cls");break; case 2:Borrow_Book(a,b);cout<<endl; system("cls");break; case 3:Return_Book(a,b);cout<<endl; system("cls");break; case 4:break; } } } system("cls"); file2.close(); return 0;}
int Log_in::Log()
{
int n=0;
while(n!=9)
{
cout<<"--------------------------------------------------------------------------------"<
cout
cout
cin>>n;
system("cls");
switch(n)
{
case 1:Administrator_Load();break;
case 2:Reader_Load(b);break;} } return 0;}
class Info
{
public:
BOOK *bok;
READER *rea;
//Info():BOOK(bok),READER(rea){}
void Load_Book(Booklist &a);
void Delete_Book(Booklist &a);
void Manage_load(Reader &b);
void Manage_Delet(Reader &b);
int Return_Book(Booklist &a,Reader &b);
private:
};
void Log_in::Search_Book(Booklist &a)
{
BOOK *p;
p=a->next;
char str[10];
cout<<"input the number: ";
cin>>str;
for(;p!=NULL;p=p->next)
{
if(strcmp(p->sheet_number,str)==0)
{
cout<<"编号 名称 类别 作者 出版社 出版时间 价格 数量 备注"<
coutsheet_number<<" "<name<<" "<sort<<" "<writer<<" "<press<<" "<publication_date<<" "<price<<" "<note;
}}}
void Log_in::Load_Book(Booklist &a) //借阅时以编号作为主键
{
BOOK p;
p=new BOOK;
//fstream file1;
ofstream file1("book.dat",ios::binary|ios::out);
if(!file1)
cerr<<"file1 error!"<
//p=new BOOK;
//if(!p) exit(1);
if(a!=NULL)
{
cout
cin>>p->sheet_number;
cout<<" 名称：";
cin>>p->name;
cout<<" 数量：";
cin>>p->sort;
cout<<" 出版社名称：";
cin>>p->press;
cout<<" 作者：";
cin>>p->writer;
cout<<" 出版时间：";
cin>>p->publication_date;
cout<<" 价格：";
cin>>p->price;
p->note=1; //1表示没有借出
}
file1.write((char)&p,sizeof(p));file1.close();}
/*
void Info::load_Book()
{
BOOK p;
p=bok->next;
cout<<"输入书的 编号 名称 类别 作者 出版社 出版时间 价格 数量 备注"<
cin>>p->sheet_number>>p->name>>p->sort>>p->writer>>p->press>>p->publication_date>>p->price>>p->amount>>p->note;
cout<sheet_number<<" "<name<<" "<sort<<" "<writer<<" "<press<<" "<publication_date<<" "<price<<" "<amount<<" "<note;
}
*/
void Log_in::Delete_Book(Booklist &a)
{
BOOK *p;
fstream file1;
file1.open("book.dat",ios::in|ios::out);
if(!file1)
cerr<<"file1 error!"<
p=a;
char num[10];
cout
cin>>num;
while(p->next!=NULL)
{
file1.read((char)&p,sizeof(p));
if(p->sheet_number==num)
delete p;
}
file1.write((char*)&p,sizeof(p));
file1.close();
}
int Log_in::Borrow_Book(Booklist &a,Reader &b)
{
BOOK p;
p=new BOOK;
READER *r;
r=new READER;
fstream file1,file2;
file1.open("book.dat",ios::in|ios::out);
if(!file1)
cerr<<"file1 error!"<
file2.open("Reader.dat",ios::in|ios::out);
if(!file2)
cerr
char al[10];
char card[10];
cout
cin>>al;
while(p->next!=NULL)
{
file1.read((char)&p,sizeof(p));
if((strcmp(p->sheet_number,al)==0)&&(p->sort>0))
{
cout<<"请输入读者证号："<
cin>>card;
while(r->next!=NULL)
{
file2.read((char*)&r,sizeof(r));
if((strcmp(r->card_number,card)==0)&&(r->current_borrow
{
p->sort-=1;
r->current_borrow+=1;
return 0;
}
else
{
if(r->current_borrow>=MAX_DAY)
cout<<"读者已达到最大借阅数！"<
if(strcmp(r->card_number,card)!=0)
cout<<"读者证号错误！"<
return 0;
}
}
}
else
{
if((p->sort)==0)
cout<<"本书已全部借出！"<
if(strcmp(p->sheet_number,al)!=0)
cout<<"对不起本书不存在！"<
return 0;
}
}
file1.write((char*)&p,sizeof(p));
file2.write((char*)&r,sizeof(r));
file1.close();
file2.close();
return 0;
}
int Log_in::Return_Book(Booklist &a,Reader &b)
{
BOOK *p;
READER *r;
p=new BOOK;
r=new READER;
fstream file1,file2;
file1.open("book.dat",ios::in|ios::out);
if(!file1)
cerr
file2.open("Reader.dat",ios::in|ios::out);
if(!file2)
cerr
char al[10];
char card[10];
cout
cin>>al;
while(p->next!=NULL)
{
if(strcmp(p->sheet_number,al)==0)
{
cout<<"请输入读者证号："<
cin>>card;
while(r->next!=NULL)
{
if(strcmp(r->card_number,card)==0)
{
p->sort+=1;
r->current_borrow-=1;
return 0;
}
else
{if(strcmp(r->card_number,card)!=0) cout<<"读者证号错误！"<<endl; return 0; } } } else { if(strcmp(p->sheet_number,al)!=0) cout<<"对不起本书不存在！"<<endl; return 0; } return 0; } file1.write((char*)&p,sizeof(p)); file2.write((char*)&r,sizeof(r)); file1.close(); file2.close(); return 0;}
void Log_in::Manage_load(Reader &b)
{
READER p;
//p=b;
//fstream file2;
p=new READER;
fstream file2("Reader.dat",ios::in|ios::out);
if(!file2)
cerr<<"file2 error!"<
if(b->next==NULL)
{
cout<<" 读者证号：";
cin>>p->card_number;
cout<<" 姓名：";
cin>>p->name;
cout<<" 单位：";
cin>>p->unit;
cout<<" 当前借阅数：";
cin>>p->current_borrow;
cout<<" 密码：";
cin>>p->password;
}
file2.write((char)p,sizeof(*p));
file2.close();
}
void Log_in::Manage_Delet(Reader &b)
{
READER p;
p=b;
fstream file2;
file2.open("Reader.dat",ios::in|ios::out);
if(!file2)
cerr<<"file2 error!"<
char card[10];
cout
cin>>card;
for(;p!=NULL;p=p->next)
{
if(p->next!=NULL&&(p->card_number==card))
delete p;
}
file2.write((char)&p,sizeof(p));
file2.close();
}
int _tmain(int argc, _TCHAR* argv[])
{
// fstream file1,file2,file3;
// BOOK *p1;
// READER *p2;
//Password *p33;
a=Creat_BOOK();
b=Creat_READER();
//c=Creat_Password();
Log_in lo;
lo.Log();
return 0;
}
解决方案
CSDN移动问答
http://blog.csdn.net/qq2399431200/article/details/9003578
我曾今写的C语言图书馆管理系统，你可以参考下里面的。其实你的C++版和我这个没多大区别。
解决方案二：
你的问题在哪里，还是要源代码...