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2020-04-14 17:01
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用C++编写图书管理系统?要求头文件和.cpp文件分开

  • 1. * 1、问题描述 定义图书类,属性有:书名、出版社、ISBN号、作者、库存量、价格等信息和相关的对属性做操作的行为。 主要完成对图书的销售、统计和图书的简单管理。 2、功能要求 (1)销售功能。购买书籍时,输入相应的ISBN号,并在书库中查找该书的相关信息。如果有库存量,输入购买的册数,进行相应计算。如果库存量不够,给出提示信息,结束购买。 (2)图书简单管理功能。 添加功能:主要完成图书信息的添加,要求ISBN号唯一。当添加了重复的编号时,则提示数据添加重复并取消添加。 查询功能:可按书名、ISBN号、作者、出版社进行查询。若存在相应信息,输出所查询的信息,若不存在该记录,则提示“该标题不存在!”。 修改功能:可根据查询结果对相应的记录进行修改,修改时注意ISBN号的唯一性。 删除功能:主要完成图书信息的删除。输入要删除的ISBN号,根据编号删除该物品的记录,如果该编号不在物品库中,则提示“该编号不存在”。 (3)统计功能。 输出当前书库中所有图书的总数及详细信息;可按书的价格、库存量、作者、出版社进行统计,输出统计信息时,要按从大到小进行排序。 (7)图书存盘:将当前程序中的图书信息存入文件中。 (8)读出信息:从文件中将图书信息读入程序。
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2条回答 默认 最新

  • 白色一大坨 2020-04-14 20:19
    已采纳

    代码先贴这,你测试一下:

    #include <string>
    #include <iostream>
    #include <fstream>
    using namespace std;
    
    #define N 300//最多保存数
    
    class book//图书类
    {
    public:
        string name;//书名
        string pub;//出版社
        string ISBN;
        string author;//作者
        int count;
        float price;
    
    
        void input(string n, string p, string i, string a, int c, float pr )//输入信息到图书类
        {
            name = n;
            pub = p;
            ISBN = i;
            author = a;
            count = c;
            price = pr;
        }
    
        void show()//显示信息
        {
            cout<< "书名:" << name 
                << " 出版社:" << pub 
                << " ISBN号:" << ISBN 
                << " 作者:" << author 
                << " 库存:" << count 
                << " 价格:" << price << endl;
        }
    
        void input(ifstream & is)//从文件读取类成员变量
        {
            is >> name >> pub >> ISBN >> author >> count >> price;
        }
    
        void output(ofstream & os)//存书籍类成员变量到文件
        {
            os << name
                << " " << pub 
                << " " << ISBN 
                << " " << author 
                << " " << count 
                << " " << price << endl;
        }
    
    };
    
    class bookmanage//图书管理类
    {
        book m_book[N];
        int m_count;
    public:
        bookmanage(){ m_count = 0; }//构造函数
        int bookexist(string ISBN)
        {
            int ret = -1;
            for (int i = 0; i < m_count; i++)
            {
                if (ISBN == m_book[i].ISBN)//找到相同号
                {
                    ret = i;
                    break;
                }
            }
    
            return ret;
        }
    
        void insert(string n, string p, string i, string a, int c, float pr)//添加
        {
            m_book[m_count].input(n, p,  i, a, c, pr);
            m_count++;
        }
    
        void del(int index)
        {
            for (int i = index; i < m_count; i++)
            {
                m_book[i] = m_book[i+1];
            }
    
            m_count--;
        }
    
        void modify(int index, string n, string p, string i, string a, int c, float pr)//修改
        {
            m_book[index].input(n, p,  i, a, c, pr);
        }
    
    
        bool searchname(string name)//根据书名查找
        {
            bool ret = false;
            for (int i = 0; i < m_count; i++)
            {
                if (name == m_book[i].name)
                {
                    m_book[i].show();
                    ret = true;
                }
            }
    
            return ret;
        }
    
        bool searchpub(string pub)//根据作==出版社查找
        {
            bool ret = false;
            for (int i = 0; i < m_count; i++)
            {
                if (pub == m_book[i].pub)
                {
                    m_book[i].show();
                    ret = true;
                }
            }
    
            return ret;
        }
    
        bool searchISBN(string ISBN)//根据ISBN查找
        {
            bool ret = false;
            for (int i = 0; i < m_count; i++)
            {
                if (ISBN == m_book[i].ISBN)
                {
                    m_book[i].show();
                    ret = true;
                }
            }
    
            return ret;
        }
    
        bool searchauthor(string author)//根据作者查找
        {
            bool ret = false;
            for (int i = 0; i < m_count; i++)
            {
                if (author == m_book[i].author)
                {
                    m_book[i].show();
                    ret = true;
                }
            }
    
            return ret;
        }
    
        bool sortprice()
        {
            if(m_count==0) return false;
            int i,j;
            book t;
            for (i=0;i<m_count-1;i++)
            {
                for (j=0;j<m_count-i-1;j++)
                {
                    if (m_book[j].price<m_book[j+1].price)
                    {
                        t=m_book[j];
                        m_book[j] = m_book[j+1];
                        m_book[j+1] = t;
                    }
                }
            }
    
            for (int i = 0; i < m_count; i++)
            {
                m_book[i].show();
            }
    
            return true;
        }
    
        bool sortcount()
        {
            if(m_count==0) return false;
            int i,j;
            book t;
            for (i=0;i<m_count-1;i++)
            {
                for (j=0;j<m_count-i-1;j++)
                {
                    if (m_book[j].count<m_book[j+1].count)
                    {
                        t=m_book[j];
                        m_book[j] = m_book[j+1];
                        m_book[j+1] = t;
                    }
                }
            }
    
            for (int i = 0; i < m_count; i++)
            {
                m_book[i].show();
            }
    
            return true;
        }
    
        bool sortauthor()
        {
            if(m_count==0) return false;
            int i,j;
            book t;
            for (i=0;i<m_count-1;i++)
            {
                for (j=0;j<m_count-i-1;j++)
                {
                    if (m_book[j].author<m_book[j+1].author)
                    {
                        t=m_book[j];
                        m_book[j] = m_book[j+1];
                        m_book[j+1] = t;
                    }
                }
            }
    
            for (int i = 0; i < m_count; i++)
            {
                m_book[i].show();
            }
    
            return true;
        }
    
        bool sortpub()
        {
            if(m_count==0) return false;
            int i,j;
            book t;
            for (i=0;i<m_count-1;i++)
            {
                for (j=0;j<m_count-i-1;j++)
                {
                    if (m_book[j].pub<m_book[j+1].pub)
                    {
                        t=m_book[j];
                        m_book[j] = m_book[j+1];
                        m_book[j+1] = t;
                    }
                }
            }
    
            for (int i = 0; i < m_count; i++)
            {
                m_book[i].show();
            }
    
            return true;
        }
    
        bool show()//显示全部图书
        {
            if(m_count==0) return false;
            for (int i = 0; i < m_count; i++)
            {
                m_book[i].show();
            }
    
            return true;
        }
    
        bool buybook(int index, int c)//购书
        {
            if(m_book[index].count<c) return false;
            m_book[index].count -= c;
            return true;
        }
    
        void save(string filename)//存全部图书到文件
        {
            ofstream write(filename.c_str(), ios::out);
            write << m_count << endl;
            for (int i = 0; i < m_count; i++)
            {
                m_book[i].output(write);
            }
    
            write.close();
        }
    
        void load(string filename)//从文件读取全部图书信息
        {
            ifstream read(filename.c_str(), ios::in);
            if (read.peek() == EOF)
            {
                read.close();
                return;
            }
    
            read >> m_count;
            for (int i = 0; i < m_count; i++)
            {
                m_book[i].input(read);
            }
    
            read.close();
        }
    };
    
    void searcbook(bookmanage manage)
    {
        string name;//书名
        string pub;//出版社
        string ISBN;
        string author;//作者
        char n;
        int k = 1;
    
        while (k == 1)
        {
            system("cls");
            cout << "图书管理" << endl;
            cout<< "1   根据书名查找" << endl
                << "2   根据ISBN查找" << endl
                << "3   根据作者查找" << endl
                << "4   根据出版社查找" << endl
                << "0   返回" << endl
                << "选择:";
            cin >> n;
            switch (n)
            {
            case 1:
                cout << "输入书名:";
                cin >> name;
                if(!manage.searchname(name)) cout << "该标题不存在!"<<endl;
                system("pause");
                break;
            case 2:
                cout << "输入出版社:";
                cin >> pub;
                if(!manage.searchname(pub)) cout << "该标题不存在!"<<endl;
                system("pause");    
                break;;
            case 3:
                cout << "输入ISBN:";
                cin >> ISBN;
                if(!manage.searchname(ISBN)) cout << "该标题不存在!"<<endl;
                system("pause");
                break;
            case 4:
                cout << "输入作者:";
                cin >> author;
                if(!manage.searchname(author)) cout << "该标题不存在!"<<endl;
                system("pause");
                break;
            case 0:
                k = 0;
                break;
            default:
                cout<<"选择错误,请重新输入"<<endl;
                break;
            }
        }
    }
    
    void bookmemu(bookmanage &manage)
    {
        string name;//书名
        string pub;//出版社
        string ISBN;
        string author;//作者
        int count;
        float price;
        char n;
        int index;
        int k = 1;
    
        while (k == 1)
        {
            system("cls");
            cout << "图书管理" << endl;
            cout<< "1   图书基本信息录入" << endl
                << "2   图书基本信息显示" << endl
                << "3   图书基本信息删除" << endl
                << "4   图书基本信息修改" << endl
                << "5   图书基本信息查询" << endl
                << "0   返回" << endl
                << "选择:";
            cin >> n;
            switch (n)
            {
            case 1:
                cout << "请输入ISBN:";
                cin >> ISBN;
                index = manage.bookexist(ISBN);
                if (index == -1)
                {
                    cout << "请输入出版社:";
                    cin >> pub;
                    cout << "请输入ISBN:";
                    cin >> ISBN;
                    cout << "请输入作者:";
                    cin >> author;
                    cout << "请输入库存量:";
                    cin >> count;
                    cout << "请输入买入价格:";
                    cin >> price;
                    manage.insert(name, pub,  ISBN, author,  count, price);
                }
                else cout << "该编号已存在" << endl;
    
                system("pause");
                break;
            case 2:
                manage.show();
                system("pause");    
                break;;
            case 3:
                cout << "请输入ISBN:";
                cin >> ISBN;
                index = manage.bookexist(ISBN);
                if (index != -1) manage.del(index);
                else cout << "该编号不存在" << endl;
                system("pause");
                break;
            case 4:
                cout << "请输入ISBN:";
                cin >> ISBN;
                index = manage.bookexist(ISBN);
                if (index != -1)
                {
                    cout << "请输入出版社:";
                    cin >> pub;
                    cout << "请输入ISBN:";
                    cin >> ISBN;
                    cout << "请输入作者:";
                    cin >> author;
                    cout << "请输入库存量:";
                    cin >> count;
                    cout << "请输入买入价格:";
                    cin >> price;
                    manage.modify(index, name, pub,  ISBN, author,  count, price);
                }
                else cout << "该编号不存在" << endl;
                system("pause");
                break;
            case 5:
                searcbook(manage);
                system("pause");
                break;
            case 0:
                k = 0;
                break;
            default:
                cout<<"选择错误,请重新输入"<<endl;
                break;
            }
        }
    }
    
    void statistics(bookmanage manage)
    {
        char n;
        int k = 1;
    
        while (k == 1)
        {
            system("cls");
            cout << "图书统计" << endl;
            cout<< "1   根据价格统计" << endl
                << "2   根据库存统计" << endl
                << "3   根据作者统计" << endl
                << "4   根据出版社统计" << endl
                << "0   返回" << endl
                << "选择:";
            cin >> n;
            switch (n)
            {
            case 1:
                if(!manage.sortprice()) cout << "未录入图书!"<<endl;
                system("pause");
                break;
            case 2:
                if(!manage.sortcount()) cout << "未录入图书!"<<endl;
                system("pause");    
                break;;
            case 3:
                if(!manage.sortauthor()) cout << "未录入图书!"<<endl;
                system("pause");
                break;
            case 4:
                if(!manage.sortpub()) cout << "未录入图书!"<<endl;
                system("pause");
                break;
            case 0:
                k = 0;
                break;
            default:
                cout<<"选择错误,请重新输入"<<endl;
                break;
            }
        }
    }
    
    int main()
    {
        bookmanage manage;
        manage.load("book.txt");
        string name;//书名
        string pub;//出版社
        string ISBN;
        string author;//作者
        int count;
        int n;
        int index;
        int k = 1;
    
        while (k == 1)
        {
            system("cls");
            cout << "图书管理系统" << endl;
            cout<< "1   管理图书" << endl
                << "2   销售图书" << endl
                << "3   统计图书" << endl
                << "0   退出系统" << endl
                << "选择:";
            cin >> n;
            switch (n)
            {
            case 1:
                bookmemu(manage);
                system("pause");
                break;
            case 2:
                cout << "请输入ISBN:";
                cin >> ISBN;
                index = manage.bookexist(ISBN);
                if (index != -1)
                {
                    cout << "请输入购买数量:";
                    cin >> count;
                    if(manage.buybook(index, count)) cout << "购买成功" << endl;
                    else cout << "库存不足" << endl;
                }
                else cout << "该编号不存在" << endl;
                system("pause");
                break;
            case 3:
                statistics(manage);
                break;
            case 0:
                k = 0;
                break;
            default:
                cout<<"选择错误,请重新输入"<<endl;
                break;
            }
        }
    
        manage.save("book.txt");
        return 0;
    }
    
    
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  • threenewbee 2020-04-14 17:53
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