C++ 图书馆管理系统
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<iomanip>
#include <list>
using namespace std;
class item
{
public:
string name;
string item_type;
bool Register;
};
//杂志类
class magazine :public item
{
string Type;
string Writer;
};
//MusicCd类
class MusicCd :public item
{
string Singer;
};
//电影类
class Movie :public item
{
string Type;
string Director;
string Actor;
};
//书籍类
class Book : public item
{
public:
Book() { borrow_flag = false; } //无参构造函数
Book(string name, string num, string auther)
:name(name), num(num), auther(auther) {
borrow_flag = false;
} //有参构造函数
void setReader(string reader, int lcn, string data); //设置读者
void setInfo(string name, string num, string auther); //设置书籍信息
string getName() {
return name;
}
string getNum() { return num; }
string getAuther() {
return auther;
}
bool getBorrow_flag() {
return borrow_flag;
}
string getReader() {
return reader;
}
int getLcn() {
return lcn;
}
string getData() {
return data;
}
bool isBorrow() { return borrow_flag; } //判断书籍是否借出
void setBorrow_flag(bool b) { borrow_flag = b; }
void showInfo(); //显示数据信息
private:
string name; //书名
string num; //编号（唯一标示）
string auther; //作者
bool borrow_flag;
string reader; //读者
int lcn; //借书证号
string data; //借书日期
};
//DVD电影类
class DVD :public Movie
{
};
//蓝光电影类
class Blue_ligh :public Movie
{
};
//用户
class Person
{
public:
string Name;
string Adress;
list<item> Regist_items;
};
void Book::setReader(string reader, int lcn, string data)
{
borrow_flag = true;
this->reader.assign(reader);
this->lcn = lcn;
this->data.assign(data);
}
void Book::setInfo(string name, string num, string auther)
{
this->name.assign(name);
this->num.assign(num);
this->auther.assign(auther);
}
void Book::showInfo()
{
cout << "书籍名称：" << setiosflags(ios_base::left) << setw(56) << name << endl
<< "书籍编号：" << setw(56) << num<< endl
<< "书籍作者：" << setw(56) << auther << endl;
if (borrow_flag)
{
cout << "书籍被借出。 \n"
<< "读者姓名：" << setw(56) << reader<< endl
<< "借书证号：" << setw(56) << lcn << endl
<< "借书日期：" << setw(56) << data << endl;
}
else {
cout << "书籍未被借出。 \n";
}
}
class Library
{
public:
//书籍库
list<item> itemList;
Library() { currentNum = 0; brrowNum = 0; }
void addBook(); //向图书馆里加书籍
void addBook(string name, string num, string auther);
void deleteBook(); //删除无用书籍
void brrowBook(); //借书，之前先判断书籍是否存在
void returnBook(); //还书
void getReader(); //查询某编号的书是谁借了
int indexOfNum(string num); //根据编号得到书在数组中的下标
vector<Book> getBooks() {
return books;
}
void showInfo();
int getTotalBooks() { return currentNum + brrowNum; }
private:
vector<Book> books;//所有书籍
map<string, int> readers; //存储读者及其所借的书籍数目
int currentNum; //库存书籍数目(不包括借出的)
int brrowNum; //借出书籍数目
};
void Library::showInfo()
{
cout << " ***************************所有图书信息***************************\n\n";
for (int i = 0; i < books.size(); i++)
{
cout << "第" << i + 1 << "本书籍的信息。" << endl;
books[i].showInfo();
}
system("pause");
system("cls");
}
int Library::indexOfNum(string num)
{
int i;
for (i = 0; i < books.size(); i++)
{
if (books[i].getNum() == num)
return i;
}
return -1;
}
void Library::addBook()
{
Book b;
int temp;
string name, num, auther;
cout << " *****************************增加界面*****************************\n\n";
do {
cout << "输入书籍名称，编号，作者：";
cin >> name >> num >> auther;
b.setInfo(name, num, auther);
if (indexOfNum(num) == -1) {
books.push_back(b);
currentNum++;
cout << "\n添加成功。" << endl;
cout << "输入1继续增加,返回上一层输入2：";
cin >> temp;
}
else {
cout << "已存在该编号的书籍，添加失败。" << endl;
cout << "输入1继续重新增加,返回上一层输入2：";
cin >> temp;
}
} while (temp == 1);
system("pause");
system("cls");
}
void Library::addBook(string name, string num, string auther)
{
Book b;
b.setInfo(name, num, auther);
books.push_back(b);
}
void Library::deleteBook()
{
int index, temp;
string num;
cout << " *****************************删除界面*****************************\n\n";
do {
cout << "输入要删除的书籍的编号：";
cin >> num;
index = indexOfNum(num);
if (index != -1) {
if (!books[index].getBorrow_flag()) {
cout << "删除的书籍的信息：\n";
books[index].showInfo();
books.erase(books.begin() + index);
currentNum--;
cout << "删除成功。" << endl;
cout << "输入1继续继续删除,返回上一层输入2：";
cin >> temp;
}
else {
cout << "删除失败！书籍已经被借出。" << endl;
cout << "输入1继续继续删除,返回上一层输入2：";
cin >> temp;
}
}
else
{
cout << "删除失败。未找到编号为" << num << "的书籍。\n";
cout << "输入1继续继续删除,返回上一层输入2：";
cin >> temp;
}
} while (temp == 1);
system("pause");
system("cls");
}
void Library::brrowBook()
{
string num;
int index;
cout << " *****************************借阅界面*****************************\n\n";
cout << "输入要借阅的书籍的编号：";
cin >> num;
index = indexOfNum(num);
if (index != -1) {
if (books[index].isBorrow()) {
cout << "借阅失败，书籍以及被借出。\n";
system("pause");
system("cls");
}
else
{
cout << "要借的书籍的信息：\n";
books[index].showInfo();
string reader, data;
int lcn;
cout << "输入读者姓名，借书证号，借书日期：";
cin >> reader >> lcn >> data;
if (readers[reader] != 2) {
books[index].setReader(reader, lcn, data);
cout << "借书完成。\n";
currentNum--;
brrowNum++;
readers[reader]++;
system("pause");
system("cls");
}
else
{
cout << "借书失败，该读者以借超过两本书籍。\n";
system("pause");
system("cls");
}
}
}
else
{
cout << "借书失败。未找到编号为" << num << "的书籍.\n";
system("pause");
system("cls");
}
}
void Library::returnBook()
{
string num;
cout << " *****************************还书界面*****************************\n\n";
cout << "输入要还的书籍的编号：";
cin >> num;
int index;
index = indexOfNum(num);
if (index != -1)
{
cout << "要还的书籍的信息为：\n";
books[index].showInfo();
books[index].setBorrow_flag(false);
readers[books[index].getReader()]--;
cout << "还书成功。\n";
system("pause");
system("cls");
}
else
{
cout << "还书失败，请检查书籍编号是否输入错误！\n";
system("pause");
system("cls");
}
}
void Library::getReader()
{
string num;
cout << " *****************************查询界面*****************************\n\n";
cout << "输入要查找的书籍编号：";
cin >> num;
int index;
index = indexOfNum(num);
if (index != -1)
{
if (books[index].getBorrow_flag())
cout << "读者为：" << books[index].getReader() << endl;
else {
cout << "无读者。" << endl;
}
system("pause");
system("cls");
}
else
{
cout << "查询失败，请检查书籍编号是否输入错误！\n";
system("pause");
system("cls");
}
}
Library l;
void menu()
{
int temp;
while (1)
{
cout << "___________________________ 图书馆管理系统____________________________\n";
cout << " ┏━━━━━━━━━━━━━┓ \n";
cout << " ┃ [0]退出系统。 ┃ \n";
cout << " ┃ [1]增加图书。 ┃ \n";
cout << " ┃ [2]删除图书。 ┃ \n";
cout << " ┃ [3]借阅图书。 ┃ \n";
cout << " ┃ [4]归还图书。 ┃ \n";
cout << " ┃ [5]显示图书信息。 ┃ \n";
cout << " ┃ [6]查询图书。 ┃ \n";
cout << " ┗━━━━━━━━━━━━━┛ \n";
cout << "输入要进行的操作：";
cin >> temp;
switch (temp) {
case 1:
system("cls");
l.addBook();
break;
case 2:system("cls");
l.deleteBook();
break;
case 3:system("cls");
l.brrowBook();
break;
case 4:system("cls");
l.returnBook();
break;
case 5:system("cls");
l.showInfo();
break;
case 6:system("cls");
l.getReader();
break;
case 0:
exit(1);
break;
default:
cout << "输入错误！" << endl;
system("pause");
system("cls");
}
}
}
int main()
{
menu();
return 0;
}