include include include include include include include include class sach public int sosach char te

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#include <iostream.h>
#include <conio.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <iomanip.h>
#include <ctype.h>
#include <fstream.h>
class sach

{

public:

int sosach;

char tensach[30],theloai[30];
char masach[10];

void insach();
void nhapds_sach();
void nhapsach();
};

class phieu :public ds_sach
{

public:

char maphieu[10];
char docgia[30];

int ngay,thang,nam;
int sosachmuon;
int sophieu;
int ngaymuon;
int ngaytra;
void nhapphieu();
void inphieu();
};

class ds_phieu :public phieu
{

public:

phieu *P;

void nhapds_phieu();

void timphieu(char ma[10]);
void xoaphieu(char ma[10]);
void themphieu(phieu y);
void inds_phieu();

void thongke_quahan();
void muonsach();

void kiemtrasach();
void docphieu();
void ghiphieu();
};

int i,j,chon;

void sach::nhapsach()
{

printf("nhap ma sach: ");
cin.getline(masach,10);
printf("nhap ten sach: ");
cin.getline(tensach,30);
printf("nhap the loai: ");
cin.getline(theloai,30);
}

void sach::nhapds_sach()
{

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S=new sach[sosach+1];
for(int i=1;i<=sosach;i++)
S[i].nhapsach();

}

void phieu::nhapphieu()
{

printf("nhap ma phieu muon: ");
cin.getline(maphieu,10);

printf("nhap ma sach muon: ");

cin.getline(masach,10);

printf("nhap ten doc gia: ");
cin.getline(docgia,30);

printf("nhap ngay thang nam : ");
cin>>ngay>>thang>>nam;

printf("nhap ngay muon sach: ");
cin>>ngaymuon;

printf("nhap ngay tra sach: ");
cin>>ngaytra;

printf("nhap so sach muon: ");
cin>>sosachmuon;

}

void phieu::inphieu()
{

printf("=============================================");
printf("in thong tin phieu");

printf("ma phieu:%s\nma sach muon:%s\ndocgia:%s\nngaymuon:%s\nngaytra:
%s\n”,maphieu,masach,docgia, ngaymuon,ngaytra);

}

void ds_phieu::nhapds_phieu()
{

printf("nhap so phieu: ");
scanf(“%d”,&sophieu);
P=new phieu[sophieu+1];
for(int i=1;i<=sophieu;i++)
{

printf("nhap thong tin phieu");
P[i].nhapphieu();

}
}

void ds_phieu::timphieu(char ma[10])
{

int i=1;

while(i<=sophieu && strcmp(P[i].maphieu,ma)!=0)
i++;

if(i>sophieu)

printf("khong co phieu nay");
else

{

printf("da tim thay-in thong tin phieu”);
P[i].inphieu();

}
}

void ds_phieu::themphieu(phieu y)
{

sophieu++;
P[sophieu]=y;
}

void ds_phieu::xoaphieu(char ma[10])
{

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while(i<=sophieu && strcmp(P[i].maphieu,ma)!=0)
i++;

if(i>sophieu)

printf("khong co phieu nay");
else

{

printf("da tim thay-thuc hien xoa phieu");
for(int j=i;j<=sophieu;j++)

P[j]=P[j+1];

}

}

void ds_phieu::inds_phieu()
{

printf("in thong tin phieu");
for(int i=1;i<=sophieu;i++)
P[i].inphieu();

}

void ds_phieu::thongke_quahan()
{

for(int i=1;i<=sophieu;i++)
if(P[i].ngaytra-P[i].ngaymuon>5)

printf("ten doc gia muon sach qua 5 ngay”,P[i].docgia);
}

void ds_phieu::muonsach()
{

char docgia[30];
int ch;

int ms;

printf("nhap ten doc gia: ");
cin.getline(docgia,30);

printf(" da tra sach chua ? - C/K");
ch=toupper(getch());

if(ch=='C')

printf("da tra sach");
sosach=sosach+1;

printf("doc gia muon sach ");
S.docsach();

printf("co con sach khong ? -Y/N?");
ms=toupper(getch());

if(ms=='Y')

printf("con sach - cho doc gia muon");
sosach=sosach-1;

S.insach;
else

printf("da het sach");
}

void sach::insach()
{

printf("==========================================================");
printf"thong tin sach");

printf("ma sach:%s\nten sach:%s\nthe loai",masach,tensach,theloai);
}

void ds_phieu::ghiphieu()
{

char taptin[10];

strcpy(taptin,"DS_phieu.txt");
ofstream f(taptin,ios::app);
if(f.bad()!=0)

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exit(1);
f<<sophieu;

for(int i=1;i<=sophieu;i++)

f<<setw(10)<<P[i].maphieu<<setw(10)<<P[i].masach<<setw(30)<<P[i].docgia<<se
tw(10)<<P[i].ngaymuon<<setw(10)<<P[i].ngaytra<<endl;

printf("ghi tot");
f.close();

}

void ds_phieu::docphieu()

{

char taptin[10];

strcpy(taptin,"DS_phieu");
ifstream f(taptin,ios::in);
if(f.bad()!=0)

{

printf("loi doc tap tin"<<endl;
getch();

exit(1);
}

f>>sophieu;

for(int i=1;i<=sophieu;i++)
{

f.read(P[i].maphieu,10);
f.read(P[i].masach,10);
f.read(P[i].docgia,30);
f>>P[i].ngaymuon;

f>>P[i].ngaytra;
f.ignore();
}

printf("doc tot");
f.close();

}

void thucdon(int *chon)
{

printf("1-nhap ds phieu");
printf("2-in ds phieu");
printf("3-tim phieu");
printf("4-them phieu");
printf("5-xoa phieu");
printf("6-muon sach");
printf("7-docphieu");
printf("8-ghi phieu");

printf("9-thong ke doc gia qua han");
printf("10-nhap ds sach ");

printf("0-thoat");

printf("chon 1 trong cac muc tren: ");
scanf(“%d”,&*chon);

}

void main()
{

clrscr();
char ma[10];
ds_sach A;
ds_phieu B;
do

{

thucdon(&chon);
switch(chon)
{

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{

clrscr();

printf("1-nhap ds phieu: ");
B.nhapds_phieu();

break;
}

case 2:
{

clrscr();

printf("2-in ds phieu");
B.inds_phieu();

break;
}

case 3:
{

clrscr();

printf("nhap ma so phieu can tim: ");
cin.getline(ma,10);

B.timphieu(ma);
break;

}

case 4:
{

clrscr();
phieu x;

x.nhapphieu();
B.themphieu(x);
break;

}

case 5:
{

clrscr();

printf("nhap ma so phieu can xoa: ");
cin.getline(ma,10);

B.xoaphieu(ma);
break;

}

case 6:
{

clrscr();
B.muonsach();
break;

}

case 7:
{

clrscr();
B.docphieu();
break;

}

case 8:

{

clrscr();
B.ghiphieu();
break;

}

case 9:
{

clrscr();

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}

case 10:
{

clrscr();

printf("nhap danh sach sach");
A.nhapds_sach();

break;
}

}

getch();
}

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