مكتبه مصغره في السي

[At7ady]

السلام عليكم ورحمة الله وبركاته

عندي عمل مكتبه بلغة السي المطلوب فيها menu اضافة كتاب حذف كتاب البحث عن كتاب
وطبعا البحث كان يحتاج مني array of objects للاسف ما عرفت استخدمه شوفولي هالبرنامج والله تعبني والي يعافيكم لا تبخلون علينا
#include<iostream>
#include<string>
using namespace std;
class Book{
private:
string Author;
string Publisher;
string Country;
string ISBN;
public:
Book(void){} //default constructor
Book(string auther,string publisher,string country,string isbn)
{ Author=auther;
Publisher=publisher;
Country=country;
ISBN=isbn;
} // initialization constructor

///////////////////////////
void DeleteBook(Book& b)const;
;bool isValid(string isbn);
string return_ISBN(){return ISBN;}
string return_country(){return Country;}
string return_author(){return Author;}
string return_publisher(){return Publisher;}
};//end of class
void Book::DeleteBook(Book& b)const//func deletebook
{
b.return_author()=" ";
b.return_country()=" ";
b.return_ISBN()=" ";
b.return_publisher()=" ";
}//end deleteBook
bool Book::isValid(string isbn)//func isvalid
{string no;
if(isbn.empty())
{cout<<"The ISBN is empty ,enter ISBN :";
cin>>no;
isbn=no;}//end if
int sum=0;
sum+=(int)isbn[0];
for(int i=2;i<5;i++)
sum+=(int)isbn[i];
for(int c=6;c<11;c++)
sum+=(int)isbn[c];
if(isbn[13]=='X' || isbn[13]=='x')
sum+=10;
if(sum%11==0)
return true;
else
return false;
}//end isValid*/

وهذا الكلاس تبعه

[At7ady]

و هذا main
#include <iostream>
#include <string>
#include <fstream>
#include "MyLibrary.h"
using std::ofstream;
using std::ifstream;
#include <iomanip>
using std::setw;
using std::setprecision;
#include <cstdlib>
using namespace std;

int isbnNo,option;
string author, publisher,country,isbn,A;
void main(){
Book MyBook();
do{
// get user's option
int option;
// display options
cout << "\nEnter your option" << endl
<< " 1 - Add new book " << endl
<< " 2 - Delete book" << endl
<< " 3 - List of books" << endl;
cin >> option;
// process user's option
switch ( option ) {
case 1:
{
// ifstream constructor opens the file
ofstream outf( "MyLibrary.dat", ios::app );
// exit program if ifstream could not open file
if ( !outf )
{
cerr << "File could not be opened" << endl;
exit( 1 );
} // end if

cout<<"enter the author name ,publisher name,country,ISBN"<<endl;
//<<"enter ctrl+z then enter to end .\n";
// display each record in file
cin >>author>> publisher >> country >>isbn;
outf<< author <<" "<< publisher<<" "
<< country <<" "<< isbn << endl;

outf.close(); // ifstream destructor closes the file
Book MyBook(author,publisher,country,isbn);
};//end case1
break;
case 2:
{cout <<"\nEnter the ISBN of the book you want to delete \n";
cin>>isbnNo;

};
break;
case 3:
cout<<"\nThis is a list of books in this library:\n";
cout<<"author name publisher name country ISBN \n";
{// ifstream constructor opens the file
ifstream inf( "MyLibrary.dat", ios::in );
// exit program if ifstream could not open file
if ( !inf )
{
cerr << "File could not be opened" << endl;
exit( 1 );
} // end if;


do{
inf >> author >> publisher >> country >> isbn;
cout << /*left << setw( 15 ) <<" "<<*/ author /*<< setw( 20 ) <<<<" " */
<<publisher/*<< setw( 15 ) <<<<" "*/<<country /*<< right <<setw( 10 ) <<*/
/*<< " " */<< isbn << endl;
}//end do
// display file contents (until eof)
while ( !inf.eof() );
inf.close();}
break;
default: cout<< "you did not chioce \n";
break ;
} // end switch
cout<<"do you want to enter your option agian: enter yes or no\n";
cin>>A;

}//end do
while(A=="yes" || A=="YES");

}//end main

زالي يقدر يساعدني لا يتاخر

[2501]

attach the source file with ur post...it is much better, cleaner, well formatted...ect