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This article mainly explains "how to write the code for C++ to implement a simple library management system". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. let's study and learn how to write the code for C++ to implement a simple library management system.

Train of thought

There are four classes in this program:

Book class: this class has basic information about the book: title, number, author, price, etc., and basic get () and set () methods. The class diagram is as follows:

Library class: this class has an array of stored books, and can perform, query, borrow, return, add, and other related operations on books. The class diagram is as follows:

Reader_infor class: this class contains information about the reader: name, student number, grade, number of books borrowed. And the basic get () and set () methods, the class diagram is as follows:

Reader_admin class: this class has an array of reader objects, and you can add readers, modify reader information, and so on. The class diagram is as follows:

The landing page is as follows

Reader page

Administrator page

Deficiencies in the process of this procedure:

1. The storage of books and readers is achieved through static arrays, which is better if dynamic arrays are used.

two。 There are some other points that feel that the writing is not very good, but I don't know how to change it.

I'll improve it later when I have time.

Code

"book.h"

# pragma once#include using namespace std;class book {public: book (); book (string name, int n_number, int s_number, int id, string author, double price); / / get method string get_name (); int get_n_number (); int get_s_number (); int get_id (); string get_author (); double get_price (); / / set method void set_name (string name) Void set_n_number (int n_number); void set_s_number (int s_number); void set_id (int id); void set_author (string author); void set_price (double price); private: string name;// name int nasty number / existing quantity int number number / inventory quantity int id;// number string author;// author double price;// price}

"book.cpp"

# include "book.h" book::book () {name = ""; n_number = 0; s_number = 0; id = 0; author = ""; price = 0;} book::book (string name, int n_number, int s_number, int id, string author, double price) {this- > name = name; this- > n_number = numbering; this- > s_number = slotted number; this- > id = id This- > author = author; this- > price = price;} / / get method. String book::get_name () {return name;} int book::get_n_number () {return numbering;} int book::get_s_number () {return slotted number;} int book::get_id () {return id;} string book::get_author () {return author;} double book::get_price () {return price;} / / set method. Void book::set_name (string name) {this- > name = name;} void book::set_n_number (int n_number) {this- > n_number = nailed number;} void book::set_s_number (int s_number) {this- > s_number = slotted number;} void book::set_id (int id) {this- > id = id;} void book::set_author (string author) {this- > author = author } void book::set_price (double price) {this- > price = price;}

"library.h"

# pragma once#include "reader_admin.h" # include "book.h" using namespace std;class library {public: library (); int get_m (); / / return the total number of books stored int get_place (); / / return the location where books were found void set_book1 (); / / store books void show_book (); / / display information about books bool search () / / find books / / modify the relevant information about books bool chang_book1 (); bool borrow_book (reader_admin&r_ad); / / borrow books bool return_book (reader_admin&r_ad); / / return books private: int mendachams / the total number of books stored. The int place;// record finds the location of the book. Book book1 [1000]; / / an array of 1000 books. }

Librayry.cpp

The # include "library.h" # include "book.h" / / book class is the common attribute of the book's base class / / book: name, existing quantity, stock quantity, number, author, price library::library () {m = 0;} int library::get_m () {return m;} int library::get_place () {return place;// returns the location where the book was found. } void library::set_book1 () {cout name; cout now; cout s; cout id; cout author; cout price; book b (name, now, s, id, author, price); this- > book1 [m] = b; cout

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