圖書管理系統功能概覽：

登錄，注冊

學生,老師借書，查看自己當前借書情況，還書。

管理員增加書，查看當前借閱情況，查看當前所有借閱人，圖書信息。

代碼概覽：

各個模塊主要負責功能COperationManagement.h 負責登錄，注冊，管理員，將圖書，初始化操作，將借閱信息等從文件中讀取出來，放入容器中，便于操作，不用一直對文件進行I/O.CBook.h 用于對書抽象，并實現了>>的重載，便于文件讀入，讀出CUser.h 工具人，作為老師，學生的父類CStudent.h 對學生進行的抽象CTeacher.h 對老師進行的抽象CAdministrator.h 對管理的抽象CManagementBooks.h 用戶所有的相關操作的中間執行者，有設計模式中代理的思想源.cpp 界面的的實現與系統入口

說明：代碼100%完整，如果大家不想CV，也可以私聊我發你完整代碼，還有就是文件讀入建議大家都直接放在相應項目里面，不然就寫絕對路徑。有問題歡迎大家在評論區提問，喜歡就點個贊咯！

全部代碼與講解:

1.源.cpp

#include<iostream> #include"CBook.h" #include"CStudent.h" #include"CManagementBooks.h" #include"CTeacher.h" #include<fstream> #include"CAdministrator.h" #include"COperationManagement.h" using namespace std; int main() {CManagementBooks mb;CUser* user = nullptr;COperationManagement om;om.init(mb);cout << "***** 歡迎來到圖書館 *****" << endl;cout << "注意事項" << endl;cout << "1.學生最多共可借三本書,老師最多共可借五本"<<endl<<endl;cout << "請選擇您的登錄方式 1:老師 2:學生 3:管理員" << endl;int t;cin >> t;if (t == 1){user = new CTeacher;}else if(t == 2){user = new CStudent;}else if(t == 3){CAdministrator admin;om.adminLogin(admin);admin.showInfo();om.adminOperation(admin, mb);return 0;}cout << "您是否已有賬號？(y/n):" << endl;string c;cin >> c;if (c == "y"){cout << "請登錄:" << endl;om.login(user,t);user->showInfo();}else{cout << "來注冊一個吧!" << endl;om.Register(user,t);}om.userOperation(user, mb);delete user;return 0; }

實現效果：

2.COperationManagement.cpp

#include "COperationManagement.h" void COperationManagement::login(CUser* user, int t) {ifstream readFile;ifstream readFile1;if (t == 1){readFile.open("teacherLogin.txt");readFile1.open("teacher.txt");}else{readFile1.open("student.txt");readFile.open("studentLogin.txt");}if (!readFile.is_open()){cout << "登錄數據讀取錯誤" << endl;}if (!readFile1.is_open()){cout << "用戶數據讀取錯誤" << endl;}cout << "請輸入您的學工號:" << endl;string account, password;cin >> account;int flag = 0;while (!readFile.eof()){string act;readFile >> act;if (act == account){cout << "請輸入密碼:" << endl;cin >> password;string pwd;readFile >> pwd;if (pwd == password){cout << "登錄成功" << endl;flag = 1;while (!readFile1.eof()){readFile1 >> user;if(user->getId() == act){break;}}break;}else{cout << "密碼錯誤，請重新登錄" << endl;login(user, t);}}}if (!flag){cout << "學工號錯誤，請重輸入" << endl;login(user, t);}readFile.close();readFile1.close(); }void COperationManagement::Register(CUser* user, int t) {ofstream writeFile;ofstream writeFile1;if (t == 1){writeFile1.open("teacher.txt", ios::app);writeFile.open("teacherLogin.txt",ios::app);}else{writeFile1.open("student.txt", ios::app);writeFile.open("studentLogin.txt",ios::app);}string pwd, act;cout << "請輸入您的學工號作為注冊賬號:" << endl;cin >> act;cout << "請輸入您的注冊密碼:" << endl;cin >> pwd;writeFile << endl << act << " " << pwd;cout << "請完善您的相應信息:" << endl;string name, department, gender;cout << "您的姓名:" << endl;cin >> name;cout << "您的性別:" << endl;cin >> gender;cout << "您所在的院系:" << endl;cin >> department;writeFile1 <<endl << act << " " << name << " " << gender << " " << department;//這里不能用user,因為在登錄時才用，并且并沒有初始化writeFile.close();writeFile1.close();cout << "注冊成功！ 趕緊登錄進入圖書管吧!" << endl;login(user, t); }void COperationManagement::userOperation(CUser* user, CManagementBooks mb) {while (1){cout << "請選擇您的操作 1.借書 2.查看自己當前借書情況 3.還書 4.退出" << endl;int t;cin >> t;if (t == 1){cout << "當前圖書館情況如下：" << endl;mb.showCurrentAllBook();cout << "是否有您想要借閱的圖書(y/n)" << endl;string s;cin >> s;if (s == "y"){user->borrowBookFromLibrary(mb);}}else if (t == 2){mb.checkBorrowedBook(user->getId());}else if (t == 3){user->returnBook(mb);}else if (t == 4){cout << "退出成功" << endl;break;}else{cout << "暫無此操作，請按提示操作" << endl;}} }void COperationManagement::adminLogin(CAdministrator& admin) {ifstream readFile("adminLogin.txt");ifstream readFile1("admin.txt");cout << "請輸入您的工號:" << endl;string account, password;cin >> account;int flag = 0;while (!readFile.eof()){string act;readFile >> act;if (act == account){cout << "請輸入密碼:" << endl;cin >> password;string pwd;readFile >> pwd;if (pwd == password){cout << "登錄成功,歡迎您" << endl;flag = 1;while (!readFile1.eof()){readFile1 >> admin;if(admin.getId() == act){break;}}break;}else{cout << "密碼錯誤，請重新登錄" << endl;adminLogin(admin);}}}if (!flag){cout << "學工號錯誤，請重輸入" << endl;adminLogin(admin);}readFile.close();readFile1.close();}void COperationManagement::init(CManagementBooks& mb) {mb.initBooks();mb.initOutBook(); }void COperationManagement::adminOperation(CAdministrator admin, CManagementBooks mb) {while (1){cout << "請選擇您的操作 1.增加書 2.查看當前借閱情況 3.查看當前所有圖書信息情況 4.查看借閱人詳細信息 5.退出" << endl;int t;cin >> t;if (t == 1){admin.addBook(mb);}else if (t == 2){mb.checekOutBook();}else if (t == 3){mb.showAllBooksInfo();}else if (t == 4){string id;cout << "請輸入您要查看借閱人的學工號:" << endl;cin >> id;mb.viewBorrowerDetails(id);}else if (t == 5){cout << "退出成功" << endl;break;}else{cout << "暫無此操作，請按提示操作" << endl;}} }

登錄效果：
其余功能大家可以自行測試。

CUser.cpp

#include "CUser.h" #include<iostream> #include<fstream> #include"CManagementBooks.h" using namespace std;CUser::CUser() {m_name = "陳1"; }void CUser::setId(string id) {m_id = id; }void CUser::setName(string name) {m_name = name; }void CUser::setGender(string gender) {m_gender = gender; }void CUser::setDepartment(string department) {m_department = department; }CUser::~CUser() { }void CUser::returnBook(CManagementBooks& mb) {int all = mb.checkBorrowedBook(m_id);if (all == 0){cout << "您暫未借書,無需歸還" << endl;}else{cout << "請輸入您要歸還的書名:" << endl;string bookName;cin >> bookName;if (mb.checkTrueBorrow(m_id, bookName)){mb.Return(m_id, bookName);cout << "還書成功" << endl;}else{cout << "您并未借閱此書" << endl;}} }string CUser::getId() {return m_id; }string CUser::getName() {return m_name; }string CUser::getGender() {return m_gender; }string CUser::getDepartment() {return m_department; }std::ostream& operator<<(std::ostream& os, const CUser* user) {os<< endl << user->m_id << " " << user->m_name << " " << user->m_gender << " " << user->m_department;return os; }std::istream& operator>>(std::istream& is, CUser* user) {is >> user->m_id >> user->m_name >> user->m_gender >> user->m_department;return is; }

CTeacher.cpp

#include "CTeacher.h" #include<fstream>CTeacher::CTeacher() {m_name = "劉X"; }void CTeacher::borrowBookFromLibrary(CManagementBooks& mb) {int all = mb.checkBorrowedBook(m_id);if (all < 5){string name;cout << "請輸入您要借的書名:" << endl;cin >> name;if (mb.borrow(name)){ofstream writeFile("borrowedBook.txt", ios::app);mb.setMapValue(m_id, name);writeFile << endl << m_id << " " << name;writeFile.close();}}else{cout << "您已經超過了最大可借閱數" << endl;} } void CTeacher::showInfo() {cout << "姓名:" << m_name<<" " << "學號:" << m_id<<" " << "性別:" << m_gender<<" " << "院系:" << m_department << endl; }

CStudent.cpp

#include "CStudent.h" #include<fstream> using namespace std;CStudent::CStudent() {m_class = "軟件"; }void CStudent::showInfo() {cout << "姓名:" << m_name << " " << "學號:" << m_id << " " << "性別:" << m_gender << " " << "院系:" << m_department << " "<<"班級:"<<m_class<<endl; }void CStudent::borrowBookFromLibrary(CManagementBooks& mb) {int all = mb.checkBorrowedBook(m_id);if (all < 3){string name;cout << "請輸入您要借的書名:" << endl;cin >> name;if (mb.borrow(name)){ofstream writeFile("borrowedBook.txt", ios::app);mb.setMapValue(m_id, name);writeFile << endl << m_id << " " << name;writeFile.close();}}else{cout << "您已經超過了最大可借閱數" << endl;}}void CStudent::setClass(string Class) {m_class = Class; }string CStudent::getClass() {return m_class; }

CManagementBooks.cpp

#include "CManagementBooks.h" using namespace std;void CManagementBooks::showCurrentAllBook() {for (int i = 0; i < m_allBookNum; i++){cout << "書名:" << m_books[i].getName() <<" " << "剩余數量" << m_books[i].getNum() << endl;} }CManagementBooks::CManagementBooks() {m_allBookNum = 0; }void CManagementBooks::addBook(CBook book) {int flag = 0;for (int i = 0; i < m_allBookNum; i++){if (m_books[i].getName() == book.getName()){flag = 1;m_books[i].setNum(m_books[i].getNum() + book.getNum());ofstream writeFile("library.txt", ios::out);for (int i = 0; i < m_allBookNum; i++){writeFile << m_books[i];}writeFile.close();break;}}if (!flag){ofstream writeFile("library.txt", ios::app);m_books.push_back(book);m_allBookNum++;writeFile << book;writeFile.close();} }int CManagementBooks::getAllBookNum() {return m_allBookNum; }void CManagementBooks::showAllBooksInfo() {for (int i = 0; i < m_allBookNum; i++){m_books[i].showInfo();} }bool CManagementBooks::borrow(string name) {for (int i =0; i <m_allBookNum; i++){if (m_books[i].getName() == name){if (m_books[i].getNum() >= 1){m_books[i].setNum(m_books[i].getNum() - 1);cout << "借書成功" << endl;ofstream writeFile("library.txt");for (int i = 0; i < m_allBookNum; i++){writeFile << m_books[i];}writeFile.close();return true;}else{cout << "此書數量不足" << endl;return false;}}}cout << "很抱歉，暫無此書" << endl;return false; }void CManagementBooks::Return(string id,string bookName) {CBook book;book.setName(bookName);addBook(book);ofstream writeFile("borrowedBook.txt",ios::out);for (auto iter =m_outBookMap.begin(); iter != m_outBookMap.end(); ++iter){if (iter->first == id && iter->second == bookName){m_outBookMap.erase(iter);break;}}for (auto map : m_outBookMap){writeFile << endl << map.first << " " << map.second;}writeFile.close(); }void CManagementBooks::initOutBook() {ifstream readFile("borrowedBook.txt");if (!readFile.is_open()){cout << "查看全體借書情況數據讀取出錯" << endl;}else{while (!readFile.eof()){string studentId, bookName;readFile >> studentId >> bookName;m_outBookMap.insert(pair<string, string>(studentId, bookName));}}readFile.close();}void CManagementBooks::checekOutBook() {for (auto map : m_outBookMap){cout << "借閱人學工號:" << map.first<<" " << "借閱書名:" << map.second << endl;} }void CManagementBooks::initBooks() {ifstream readFile;readFile.open("library.txt");if (!readFile.is_open()){cout << "圖書數據讀取錯誤" << endl;readFile.close();return;}while (!readFile.eof()){CBook book;readFile >> book;m_allBookNum++;m_books.push_back(book);}readFile.close(); }int CManagementBooks::checkBorrowedBook(string userId) {int flag = 0;for (auto map : m_outBookMap){if (userId == map.first){if (!flag){cout << "您已經借的全部圖書如下：" << endl;flag++;}else{flag++;}cout << map.second << " ";}}if (!flag){cout << "您目前沒有借書" << endl;}cout << "共：" << flag << "本";cout << endl;return flag; }void CManagementBooks::viewBorrowerDetails(string id) {ifstream readFile("teacher.txt");ifstream readFile1("student.txt");int flag = 0;if (!readFile1.is_open()|| !readFile.is_open()){cout << "用戶數據讀取錯誤" << endl;}while (!readFile1.eof()){string act1, name, department, gender;readFile1 >> act1 >> name >> gender >> department;if (id == act1){cout<<"用戶類別:"<<"學生"<<" " << "用戶姓名:" << name << " " << "用戶性別:" << gender << " " << "用戶所在部門:" << department << endl;flag = 1;}}if (!flag){while (!readFile.eof()){string act1, name, department, gender;readFile >> act1 >> name >> gender >> department;if (id == act1){flag = 1;cout << "用戶類別:"<<"老師"<<" " << "用戶姓名:" << name << " " << "用戶性別:" << gender << " " << "用戶所在部門:" << department << endl;}}}if (!flag){cout << "無此用戶！" << endl;}readFile.close();readFile1.close(); }bool CManagementBooks::checkTrueBorrow(string id, string bookName) {for (auto map : m_outBookMap){if (map.first == id && map.second == bookName){return true;}}return false; }void CManagementBooks::setMapValue(string userId,string bookName) {m_outBookMap.insert(pair<string, string>(userId, bookName)); }

CBook.cpp

#include "CBook.h" #include <iostream> #include<fstream> using namespace std;CBook::CBook() {string b = "";string randStr = "0123456789X";for (int i = 0; i <= 12; i++){if (i == 1 || i == 5 || i == 11){b += '-';}else{if (i == 12){b += randStr[rand() % 11];}else{b += randStr[rand() % 10];}}}m_num = 1;m_name = "等待戈多";m_author = "李XX";m_isbn = b;m_page = rand();m_pressInfo = "XX出版社";m_price = rand(); }void CBook::setNum(int num) {m_num = num; }int CBook::getNum() {return m_num; }void CBook::setName(string name) {m_name = name; }string CBook::getName() {return m_name; }void CBook::setIsbn(string isbn) {m_isbn = isbn; }string CBook::getIsbn() {return m_isbn; }void CBook::setPressInfo(string perssInfo) { m_pressInfo = perssInfo; }string CBook::getPressInfo() {return m_pressInfo; }void CBook::setPrice(double price) {m_price = price; }double CBook::getPrice() {return m_price; }void CBook::setPage(int page) {m_page = page;}int CBook::getPage() {return m_page; }void CBook::setAuthor(string author) {m_author = author; }string CBook::getAuthor() {return m_author; }void CBook::checkIsnb() {int sum = 0;for (int i = 0, j = 1; i < m_isbn.size(); i++) {if (m_isbn[i] != '-' && i != 12) {sum += (m_isbn[i] - '0') * j;j++;}}sum %= 11;char c = 'X';if (sum < 10) c = sum + '0';if (m_isbn[12] == c) puts("This book isbn are Right!");else puts("This book isbn are wrong!"); }bool CBook::isBorrowed() {if (m_num >= 1){m_num--;return true;}return false; }void CBook::showInfo() {cout<<"作者:" << m_author << " "<<"isbn號碼:" << m_isbn << " " <<"書本名稱:"<< m_name << " "<<"總頁數:" << m_page << " " <<"出版社:" << m_pressInfo << " " <<"價格:" << m_price<< " " <<"剩余本數:"<<m_num<< endl; }std::ostream& operator <<(std::ostream& os, const CBook& book) {os << endl <<book.m_name << " " <<book.m_isbn << " " << book.m_pressInfo << " " <<book.m_price << " " << book.m_page << " " << book.m_author << " " << book.m_num;return os; }std::istream& operator>>(std::istream& is, CBook& book) {is >> book.m_name >> book.m_isbn >> book.m_pressInfo >> book.m_price >>book.m_page >> book.m_author >> book.m_num;return is; }

CAdministrator.cpp

#include "CAdministrator.h" void CAdministrator::addBook(CManagementBooks& mb) {CBook book;cout << "當前圖書館情況如下" << endl;mb.showAllBooksInfo();cout << "請輸入您要增加的圖書信息:" << endl;string name, author;double price;int num;cout << "請輸入增加的圖書書名：" << endl;cin >> name;cout << "請輸入增加的圖書的作者：" << endl;cin >> author;cout << "請輸入增加的圖書價格：" << endl;cin >> price;cout << "請輸入增加的圖書的本書：" << endl;cin >> num;book.setName(name);book.setAuthor(author);book.setNum(num);book.setPrice(price);mb.addBook(book);cout << "新增圖書成功" << endl; } void CAdministrator::setId(string id) {m_id = id; }void CAdministrator::setName(string name) {m_name = name; }void CAdministrator::setGender(string gender) {m_gender = gender; } void CAdministrator::setDepartment(string department) {m_department = department; } void CAdministrator::showInfo() {cout << "姓名:" << m_name << " " << "工號:" << m_id << " " << "性別:" << m_gender << " " << "部門:" << m_department <<endl; }std::istream& operator>>(std::istream& is, CAdministrator& admin) {is >> admin.m_id >> admin.m_name >> admin.m_gender >> admin.m_department;return is; } string CAdministrator::getId() {return m_id; }string CAdministrator::getName() {return m_name; }string CAdministrator::getGender() {return m_gender; }string CAdministrator::getDepartment() {return m_department; }

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