7.机房预约系统

需求#

文件目录#

代码#

机房预约系统.cpp#

#include<iostream>
#include "Identity.h"
#include<fstream>
#include<string>
#include "globalFile.h"
#include "student.h"
#include "teacher.h"
#include "manager.h"
using namespace std;



// 使用指针引用 Identity*& manager 可以让函数内部对指针的修改直接影响到调用者的原始指针，
// 避免悬空指针问题，保证资源管理的正确性和代码逻辑的一致性。
// 指针作为参数传递的特性：当你将一个指针作为普通参数传递给函数时，
// 传递的是指针的值（即指针所存储的内存地址）的副本。在函数内部对这个副本进行修改，
// 不会影响到原始指针本身
void managerMenu(Identity*& manager) {
	while (true) {
		manager->openMenu();
		Manager* man = (Manager*)manager;
		int select = 0;
		cin >> select;
		if (select == 1) {
			cout << "添加账号" << endl;
			man->addPerson();
		}
		else if (select == 2) {
			cout << "查看账号" << endl;
			man->showPerson();
		}
		else if (select == 3) {
			cout << "查看机房" << endl;
			man->showComputer();
		}
		else if (select == 4) {
			cout << "清空预约" << endl;
			man->cleanFile();
		}
		else {
			delete manager;
			cout << "注销成功" << endl;
			system("pause");
			system("cls");
			return;
		}
	}
}


void studentMenu(Identity*& student) {
	while (true) {
		//学生菜单
		student->openMenu();

		Student* stu = (Student*)student;
		int select = 0;

		cin >> select;

		if (select == 1) {
			stu->applyOrder();
		}
		else if (select == 2) {
			stu->showMyOrder();
		}
		else if (select == 3) {
			stu->showAllOrder();
		}
		else if (select == 4) {
			stu->cancelOrder();
		}
		else {
			delete student;
			cout << "注销成功" << endl;
			system("pause");
			system("cls");
			return;
		}
	}
}


void teacherMenu(Identity*& teacher)
{
	while (true) {
		//教师菜单
		teacher->openMenu();

		Teacher* tea = (Teacher*)teacher;
		int select = 0;

		cin >> select;

		if (select == 1) {
			//查看所有预约
			tea->showAllOrder();
		}
		else if (select == 2) {
			//审核预约
			tea->validOrder();
		}
		else {
			delete teacher;
			cout << "注销成功" << endl;
			system("pause");
			system("cls");
			return;
		}

	}
}


void LoginIn(string fileName, int type) {
	Identity* person = NULL;
	ifstream ifs;
	ifs.open(fileName, ios::in);
	if (!ifs.is_open()) {
		cout << "文件不存在" << endl;
		ifs.close();
		return;
	}
	int id = 0;
	string name;
	string pwd;

	if (type == 1) {
		cout << "请输入你的学号：" << endl;
		cin >> id;
	}
	else if (type == 2) {
		cout << "请输入你的职工号：" << endl;
		cin >> id;
	}
	cout << "请输入用户名：" << endl;
	cin >> name;
	cout << "请输入密码：" << endl;
	cin >> pwd;

	if (type == 1) {
		int fId;
		string fName;
		string fPwd;
		while (ifs >> fId && ifs >> fName && ifs >> fPwd) {
			if (id == fId && name == fName && pwd == fPwd) {
				cout << "学生验证登录成功！" << endl;
				system("pause");
				system("cls");
				person = new Student(id, name, pwd);
				studentMenu(person);
				return;
			}
		}
	}
	else if (type == 2) {
		int fId;
		string fName;
		string fPwd;
		while (ifs >> fId && ifs >> fName && ifs >> fPwd)
		{
			if (id == fId && name == fName && pwd == fPwd)
			{
				cout << "教师验证登录成功!" << endl;
				system("pause");
				system("cls");
				person = new Teacher(id, name, pwd);
				teacherMenu(person);
				return;
			}
		}
	}
	else {
		string fName;
		string fPwd;
		while (ifs >> fName && ifs >> fPwd)
		{
			if (name == fName && pwd == fPwd)
			{
				cout << "验证登录成功!" << endl;
				//登录成功后，按任意键进入管理员界面
				system("pause");
				system("cls");
				//创建管理员对象
				person = new Manager(name, pwd);
				managerMenu(person);
				return;
			}
		}
	}

	cout << "验证登录失败！" << endl;
	system("pause");
	system("cls");
	return;
}


int main() {

	int select = 0;
	while (true) {
		cout << "======================  欢迎来到传智播客机房预约系统  ====================="
			<< endl;
		cout << endl << "请输入您的身份" << endl;
		cout << "\t\t -------------------------------\n";
		cout << "\t\t|                               |\n";
		cout << "\t\t|          1.学生代表           |\n";
		cout << "\t\t|                               |\n";
		cout << "\t\t|          2.老    师           |\n";
		cout << "\t\t|                               |\n";
		cout << "\t\t|          3.管 理 员           |\n";
		cout << "\t\t|                               |\n";
		cout << "\t\t|          0.退    出           |\n";
		cout << "\t\t|                               |\n";
		cout << "\t\t -------------------------------\n";
		cout << "输入您的选择: ";

		cin >> select;
		switch (select)
		{
		case 1:  // 学生身份
			LoginIn(STUDENT_FILE, 1);
			break;
		case 2:  // 老师身份
			LoginIn(TEACHER_FILE, 2);
			break;
		case 3:  // 管理员身份
			LoginIn(ADMIN_FILE, 3);
			break;
		case 0:  // 退出系统
			cout << "欢迎下一次使用！" << endl;
			system("pause");
			return 0;
			break;
		default:
			cout << "输入有误，请重新选择！" << endl;
			system("pause");
			system("cls");
			break;
		}
	}
	
	system("pause");


	return 0;
}

Identity.h#

#pragma once
#include<iostream>
using namespace std;


class Identity {
		
public:
	string m_Name;
	string m_Pwd;

public:
	virtual void openMenu() = 0;

};

manager.h#

#pragma once
#include<iostream>
#include "Identity.h"
#include<fstream>
#include "globalFile.h"
#include<vector>
#include "student.h"
#include "teacher.h"
#include<algorithm>
#include "computerRoom.h"
using namespace std;



class Manager : public Identity {

public:
	//学生容器
	vector<Student> vStu;

	//教师容器
	vector<Teacher> vTea;

	vector<ComputerRoom> vCom;

public:
	Manager();

	Manager(string name, string pwd);

	virtual void openMenu();

	void addPerson();

	void showPerson();

	void showComputer();

	void cleanFile();

	void initVector();

	bool checkRepeat(int id, int type);
};

manager.cpp#

#include "manager.h"


Manager::Manager() {

}

Manager::Manager(string name, string pwd) {
	this->m_Name = name;
	this->m_Pwd = pwd;
	this->initVector();

	//获取机房信息
	ifstream ifs;

	ifs.open(COMPUTER_FILE, ios::in);

	ComputerRoom c;
	while (ifs >> c.m_ComId && ifs >> c.m_MaxNum)
	{
		vCom.push_back(c);
	}
	cout << "当前机房数量为： " << vCom.size() << endl;

	ifs.close();
}

void Manager::openMenu() {
	cout << "欢迎管理员：" << this->m_Name << "登录！" << endl;
	cout << "\t\t ---------------------------------\n";
	cout << "\t\t|                                |\n";
	cout << "\t\t|          1.添加账号            |\n";
	cout << "\t\t|                                |\n";
	cout << "\t\t|          2.查看账号            |\n";
	cout << "\t\t|                                |\n";
	cout << "\t\t|          3.查看机房            |\n";
	cout << "\t\t|                                |\n";
	cout << "\t\t|          4.清空预约            |\n";
	cout << "\t\t|                                |\n";
	cout << "\t\t|          0.注销登录            |\n";
	cout << "\t\t|                                |\n";
	cout << "\t\t ---------------------------------\n";
	cout << "请选择您的操作： " << endl;
}

void Manager::addPerson() {
	cout << "请输入添加账号的类型" << endl;
	cout << "1、添加学生" << endl;
	cout << "2、添加老师" << endl;
	string fileName;
	string tip;
	string errorTip; //重复错误提示
	ofstream ofs;
	int select = 0;
	cin >> select;
	if (select == 1)
	{
		fileName = STUDENT_FILE;
		tip = "请输入学号： ";
		errorTip = "学号重复，请重新输入";
	}
	else
	{
		fileName = TEACHER_FILE;
		tip = "请输入职工编号：";
		errorTip = "职工号重复，请重新输入";
	}

	ofs.open(fileName, ios::out | ios::app);
	int id;
	string name;
	string pwd;
	cout << tip << endl;

	while (true) {
		cin >> id;
		bool ret = this->checkRepeat(id, 1);

		if (ret) //有重复
		{
			cout << errorTip << endl;
		}
		else
		{
			break;
		}
	}

	cout << "请输入姓名： " << endl;
	cin >> name;

	cout << "请输入密码： " << endl;
	cin >> pwd;

	ofs << id << " " << name << " " << pwd << " " << endl;
	cout << "添加成功" << endl;

	system("pause");
	system("cls");

	ofs.close();
	this->initVector();
}


void printStudent(Student& s)
{
	cout << "学号： " << s.m_Id << " 姓名： " << s.m_Name << " 密码：" << s.m_Pwd << endl;
}
void printTeacher(Teacher& t)
{
	cout << "职工号： " << t.m_EmpId << " 姓名： " << t.m_Name << " 密码：" << t.m_Pwd << endl;
}


void Manager::showPerson() {
	cout << "请选择查看内容：" << endl;
	cout << "1、查看所有学生" << endl;
	cout << "2、查看所有老师" << endl;

	int select = 0;

	cin >> select;

	if (select == 1)
	{
		cout << "所有学生信息如下： " << endl;
		for_each(vStu.begin(), vStu.end(), printStudent);
	}
	else
	{
		cout << "所有老师信息如下： " << endl;
		for_each(vTea.begin(), vTea.end(), printTeacher);
	}
	system("pause");
	system("cls");
}

void Manager::showComputer() {
	cout << "机房信息如下： " << endl;
	for (vector<ComputerRoom>::iterator it = vCom.begin(); it != vCom.end(); it++) {
		cout << "机房编号： " << it->m_ComId << " 机房最大容量： " << it->m_MaxNum << endl;
	}
	system("pause");
	system("cls");
}

void Manager::cleanFile() {
	ofstream ofs(ORDER_FILE, ios::trunc);
	ofs.close();

	cout << "清空成功！" << endl;
	system("pause");
	system("cls");
}

void Manager::initVector() {
	//读取学生文件中信息
	ifstream ifs;
	ifs.open(STUDENT_FILE, ios::in);
	if (!ifs.is_open())
	{
		cout << "文件读取失败" << endl;
		return;
	}

	vStu.clear();
	vTea.clear();

	Student s;
	while (ifs >> s.m_Id && ifs >> s.m_Name && ifs >> s.m_Pwd)
	{
		vStu.push_back(s);
	}
	//cout << "当前学生数量为： " << vStu.size() << endl;
	ifs.close(); //学生初始化

	//读取老师文件信息
	ifs.open(TEACHER_FILE, ios::in);

	Teacher t;
	while (ifs >> t.m_EmpId && ifs >> t.m_Name && ifs >> t.m_Pwd)
	{
		vTea.push_back(t);
	}
	//cout << "当前教师数量为： " << vTea.size() << endl;

	ifs.close();
}

bool Manager::checkRepeat(int id, int type) {
	if (type == 1)
	{
		for (vector<Student>::iterator it = vStu.begin(); it != vStu.end(); it++)
		{
			if (id == it->m_Id)
			{
				return true;
			}
		}
	}
	else
	{
		for (vector<Teacher>::iterator it = vTea.begin(); it != vTea.end(); it++)
		{
			if (id == it->m_EmpId)
			{
				return true;
			}
		}
	}
	return false;
}

student.h#

#pragma once
#include<iostream>
#include "Identity.h"
#include<vector>
#include "computerRoom.h"
#include<fstream>
#include "globalFile.h"
#include "orderFile.h"
using namespace std;


class Student :public Identity {

public:
	int m_Id;

	vector<ComputerRoom> vCom;

public:
	Student();

	Student(int id, string name, string pwd);

	virtual void openMenu();

	void applyOrder();

	void showMyOrder();

	void showAllOrder();

	void cancelOrder();

};

student.cpp#

#include "student.h"


Student::Student() {

}

Student::Student(int id, string name, string pwd) {
	//初始化属性
	this->m_Id = id;
	this->m_Name = name;
	this->m_Pwd = pwd;

	ifstream ifs;
	ifs.open(COMPUTER_FILE, ios::in);

	ComputerRoom c;
	while (ifs >> c.m_ComId && ifs >> c.m_MaxNum) {
		vCom.push_back(c);
	}

	ifs.close();
}

void Student::openMenu()
{
	cout << "欢迎学生代表：" << this->m_Name << "登录！" << endl;
	cout << "\t\t ----------------------------------\n";
	cout << "\t\t|                                 |\n";
	cout << "\t\t|          1.申请预约              |\n";
	cout << "\t\t|                                 |\n";
	cout << "\t\t|          2.查看我的预约          |\n";
	cout << "\t\t|                                 |\n";
	cout << "\t\t|          3.查看所有预约          |\n";
	cout << "\t\t|                                 |\n";
	cout << "\t\t|          4.取消预约              |\n";
	cout << "\t\t|                                 |\n";
	cout << "\t\t|          0.注销登录              |\n";
	cout << "\t\t|                                 |\n";
	cout << "\t\t ----------------------------------\n";
	cout << "请选择您的操作： " << endl;
}


void Student::applyOrder() {
	cout << "机房开放时间为周一至周五！" << endl;
	cout << "请输入申请预约的时间：" << endl;
	cout << "1、周一" << endl;
	cout << "2、周二" << endl;
	cout << "3、周三" << endl;
	cout << "4、周四" << endl;
	cout << "5、周五" << endl;
	int date = 0;
	int interval = 0;
	int room = 0;

	while (true) {
		cin >> date;
		if (date >= 1 && date <= 5)	{
			break;
		}
		cout << "输入有误，请重新输入" << endl;
	}


	cout << "请输入申请预约的时间段：" << endl;
	cout << "1、上午" << endl;
	cout << "2、下午" << endl;

	while (true) {
		cin >> interval;
		if (interval >= 1 && interval <= 2)	{
			break;
		}
		cout << "输入有误，请重新输入" << endl;
	}

	cout << "请选择机房：" << endl;
	cout << "1号机房容量：" << vCom[0].m_MaxNum << endl;
	cout << "2号机房容量：" << vCom[1].m_MaxNum << endl;
	cout << "3号机房容量：" << vCom[2].m_MaxNum << endl;

	while (true) {
		cin >> room;
		if (room >= 1 && room <= 3)	{
			break;
		}
		cout << "输入有误，请重新输入" << endl;
	}

	cout << "预约成功！审核中" << endl;

	ofstream ofs(ORDER_FILE, ios::app);
	ofs << "date:" << date << " ";
	ofs << "interval:" << interval << " ";
	ofs << "stuId:" << this->m_Id << " ";
	ofs << "stuName:" << this->m_Name << " ";
	ofs << "roomId:" << room << " ";
	ofs << "status:" << 1 << endl;

	ofs.close();

	system("pause");
	system("cls");
}


void Student::showAllOrder() {
	OrderFile of;
	if (of.m_Size == 0)	{
		cout << "无预约记录" << endl;
		system("pause");
		system("cls");
		return;
	}

	for (int i = 0; i < of.m_Size; i++)	{
		cout << i + 1 << "、 ";

		cout << "预约日期： 周" << of.m_orderData[i]["date"];
		cout << " 时段：" << (of.m_orderData[i]["interval"] == "1" ? "上午" : "下午");
		cout << " 学号：" << of.m_orderData[i]["stuId"];
		cout << " 姓名：" << of.m_orderData[i]["stuName"];
		cout << " 机房：" << of.m_orderData[i]["roomId"];
		string status = " 状态： ";  // 0 取消的预约   1 审核中   2 已预约 -1 预约失败
		if (of.m_orderData[i]["status"] == "1")	{
			status += "审核中";
		}
		else if (of.m_orderData[i]["status"] == "2") {
			status += "预约成功";
		}
		else if (of.m_orderData[i]["status"] == "-1") {
			status += "审核未通过，预约失败";
		}
		else {
			status += "预约已取消";
		}
		cout << status << endl;
	}

	system("pause");
	system("cls");
}

void Student::cancelOrder() {
	OrderFile of;
	if (of.m_Size == 0) {
		cout << "无预约记录" << endl;
		system("pause");
		system("cls");
		return;
	}
	cout << "审核中或预约成功的记录可以取消，请输入取消的记录" << endl;

	vector<int> v;
	int index = 1;
	for (int i = 0; i < of.m_Size; i++)	{
		if (atoi(of.m_orderData[i]["stuId"].c_str()) == this->m_Id)	{
			if (of.m_orderData[i]["status"] == "1" || of.m_orderData[i]["status"] == "2") {
				v.push_back(i);
				cout << index++ << "、 ";
				cout << "预约日期： 周" << of.m_orderData[i]["date"];
				cout << " 时段：" << (of.m_orderData[i]["interval"] == "1" ? "上午" : "下午");
				cout << " 机房：" << of.m_orderData[i]["roomId"];
				string status = " 状态： ";  // 0 取消的预约   1 审核中   2 已预约  -1 预约失败
				if (of.m_orderData[i]["status"] == "1")	{
					status += "审核中";
				}
				else if (of.m_orderData[i]["status"] == "2") {
					status += "预约成功";
				}
				cout << status << endl;

			}
		}
	}

	cout << "请输入取消的记录,0代表返回" << endl;
	int select = 0;
	while (true) {
		cin >> select;
		if (select >= 0 && select <= v.size()) {
			if (select == 0) {
				break;
			}
			else {
				//	cout << "记录所在位置： " << v[select - 1] << endl;
				of.m_orderData[v[select - 1]]["status"] = "0";
				of.updateOrder();
				cout << "已取消预约" << endl;
				break;
			}

		}
		cout << "输入有误，请重新输入" << endl;
	}

	system("pause");
	system("cls");
}


void Student::showMyOrder() {
	OrderFile of;
	if (of.m_Size == 0)	{
		cout << "无预约记录" << endl;
		system("pause");
		system("cls");
		return;
	}
	for (int i = 0; i < of.m_Size; i++)	{
		// c_str() 是 std::string 类的一个成员函数，其作用是返回一个指向以空字符结尾的
		// C 风格字符串的指针。由于 atoi 函数要求传入的参数是 C 风格字符串，
		// 所以需要使用 c_str() 进行转换。
		// atoi 是 C 标准库中的一个函数，其全称为 ascii to integer，
		// 功能是把 C 风格字符串转换为整数。它会从字符串的起始位置开始解析，
		// 直到遇到非数字字符或者字符串结束符 '\0' 为止，然后返回解析得到的整数值。
		if (atoi(of.m_orderData[i]["stuId"].c_str()) == this->m_Id) {
			cout << "预约日期： 周" << of.m_orderData[i]["date"];
			cout << " 时段：" << (of.m_orderData[i]["interval"] == "1" ? "上午" : "下午");
			cout << " 机房：" << of.m_orderData[i]["roomId"];
			string status = " 状态： ";  // 0 取消的预约   1 审核中   2 已预约 -1 预约失败
			if (of.m_orderData[i]["status"] == "1")	{
				status += "审核中";
			}
			else if (of.m_orderData[i]["status"] == "2") {
				status += "预约成功";
			}
			else if (of.m_orderData[i]["status"] == "-1") {
				status += "审核未通过，预约失败";
			}
			else {
				status += "预约已取消";
			}
			cout << status << endl;

		}
	}

	system("pause");
	system("cls");
}

teacher.h#

#pragma once
#include<iostream>
#include "Identity.h"
#include "orderFile.h"
#include<vector>
using namespace std;

/*
* 在 Visual Studio 中，微软为了提高程序的安全性，
对一些传统的 C 标准库函数进行了标记，认为这些函数存在潜在的安全风险，
例如 strcpy、gets、sprintf 等。当你使用这些函数时，
编译器会发出安全警告，提示你使用更安全的替代函数，如 strcpy_s、fgets、sprintf_s 等。
#define _CRT_SECURE_NO_WARNINGS 的作用就是告诉编译器忽略这些安全警告，
允许你继续使用传统的 C 标准库函数。这样做可以避免在编译过程中出现大量的警告信息，
让你专注于代码的功能实现。
*/
#define _CRT_SECURE_NO_WARNINGS


class Teacher : public Identity {

public:
	int m_EmpId;

public:

	Teacher();

	Teacher(int empId, string name, string pwd);

	virtual void openMenu();

	void showAllOrder();

	void validOrder();

};

teacher.cpp#

#include "teacher.h"


Teacher::Teacher() {

}

Teacher::Teacher(int empId, string name, string pwd) {
	this->m_EmpId = empId;
	this->m_Name = name;
	this->m_Pwd = pwd;
}

void Teacher::openMenu() {
	cout << "欢迎教师：" << this->m_Name << "登录！" << endl;
	cout << "\t\t ----------------------------------\n";
	cout << "\t\t|                                  |\n";
	cout << "\t\t|          1.查看所有预约          |\n";
	cout << "\t\t|                                  |\n";
	cout << "\t\t|          2.审核预约              |\n";
	cout << "\t\t|                                  |\n";
	cout << "\t\t|          0.注销登录              |\n";
	cout << "\t\t|                                  |\n";
	cout << "\t\t ----------------------------------\n";
	cout << "请选择您的操作： " << endl;
}

void Teacher::showAllOrder() {
	OrderFile of;
	if (of.m_Size == 0)	{
		cout << "无预约记录" << endl;
		system("pause");
		system("cls");
		return;
	}
	for (int i = 0; i < of.m_Size; i++)	{
		cout << i + 1 << "、 ";

		cout << "预约日期： 周" << of.m_orderData[i]["date"];
		cout << " 时段：" << (of.m_orderData[i]["interval"] == "1" ? "上午" : "下午");
		cout << " 学号：" << of.m_orderData[i]["stuId"];
		cout << " 姓名：" << of.m_orderData[i]["stuName"];
		cout << " 机房：" << of.m_orderData[i]["roomId"];
		string status = " 状态： ";  // 0 取消的预约   1 审核中   2 已预约 -1 预约失败
		if (of.m_orderData[i]["status"] == "1")	{
			status += "审核中";
		}
		else if (of.m_orderData[i]["status"] == "2") {
			status += "预约成功";
		}
		else if (of.m_orderData[i]["status"] == "-1") {
			status += "审核未通过，预约失败";
		}
		else {
			status += "预约已取消";
		}
		cout << status << endl;
	}

	system("pause");
	system("cls");
}

void Teacher::validOrder() {
	OrderFile of;
	if (of.m_Size == 0)
	{
		cout << "无预约记录" << endl;
		system("pause");
		system("cls");
		return;
	}
	cout << "待审核的预约记录如下：" << endl;

	vector<int>v;
	int index = 0;
	for (int i = 0; i < of.m_Size; i++)	{
		if (of.m_orderData[i]["status"] == "1")	{
			v.push_back(i);
			cout << ++index << "、 ";
			cout << "预约日期： 周" << of.m_orderData[i]["date"];
			cout << " 时段：" << (of.m_orderData[i]["interval"] == "1" ? "上午" : "下午");
			cout << " 机房：" << of.m_orderData[i]["roomId"];
			string status = " 状态： ";  // 0取消的预约   1 审核中   2 已预约  -1 预约失败
			if (of.m_orderData[i]["status"] == "1")	{
				status += "审核中";
			}
			cout << status << endl;
		}
	}
	cout << "请输入审核的预约记录,0代表返回" << endl;
	int select = 0;
	int ret = 0;
	while (true) {
		cin >> select;
		if (select >= 0 && select <= v.size()) {
			if (select == 0) {
				break;
			}
			else {
				cout << "请输入审核结果" << endl;
				cout << "1、通过" << endl;
				cout << "2、不通过" << endl;
				cin >> ret;

				if (ret == 1) {
					of.m_orderData[v[select - 1]]["status"] = "2";
				}
				else {
					of.m_orderData[v[select - 1]]["status"] = "-1";
				}
				of.updateOrder();
				cout << "审核完毕！" << endl;
				break;
			}
		}
		cout << "输入有误，请重新输入" << endl;
	}

	system("pause");
	system("cls");
}

globalFile.h#

#pragma once

#define ADMIN_FILE     "admin.txt"
#define STUDENT_FILE   "student.txt"
#define TEACHER_FILE   "teacher.txt"
#define COMPUTER_FILE  "computerRoom.txt"
#define ORDER_FILE     "order.txt"

orderFile.h#

#pragma once
#include<iostream>
#include<map>
#include "globalFile.h"
#include<fstream>
using namespace std;


class OrderFile {
public:

	//构造函数
	OrderFile();

	//更新预约记录
	void updateOrder();

	//记录的容器  key --- 记录的条数  value --- 具体记录的键值对信息
	map<int, map<string, string>> m_orderData;

	//预约记录条数
	int m_Size;
};

orderFile.cpp#

#include "orderFile.h"


OrderFile::OrderFile() {
	ifstream ifs;
	ifs.open(ORDER_FILE, ios::in);

	string date;      //日期
	string interval;  //时间段
	string stuId;     //学生编号
	string stuName;   //学生姓名
	string roomId;    //机房编号
	string status;    //预约状态


	this->m_Size = 0; //预约记录个数

	while (ifs >> date && ifs >> interval && ifs >> stuId && ifs >> stuName && ifs >> roomId && ifs >> status) {

		string key;
		string value;
		map<string, string> m;

		int pos = date.find(":");
		if (pos != -1) {
			key = date.substr(0, pos);
			value = date.substr(pos + 1, date.size() - pos - 1);
			m.insert(make_pair(key, value));
		}

		pos = interval.find(":");
		if (pos != -1) {
			key = interval.substr(0, pos);
			value = interval.substr(pos + 1, interval.size() - pos - 1);
			m.insert(make_pair(key, value));
		}

		pos = stuId.find(":");
		if (pos != -1) {
			key = stuId.substr(0, pos);
			value = stuId.substr(pos + 1, stuId.size() - pos - 1);
			m.insert(make_pair(key, value));
		}

		pos = stuName.find(":");
		if (pos != -1) {
			key = stuName.substr(0, pos);
			value = stuName.substr(pos + 1, stuName.size() - pos - 1);
			m.insert(make_pair(key, value));
		}

		pos = roomId.find(":");
		if (pos != -1) {
			key = roomId.substr(0, pos);
			value = roomId.substr(pos + 1, roomId.size() - pos - 1);
			m.insert(make_pair(key, value));
		}

		pos = status.find(":");
		if (pos != -1) {
			key = status.substr(0, pos);
			value = status.substr(pos + 1, status.size() - pos - 1);
			m.insert(make_pair(key, value));
		}

		this->m_orderData.insert(make_pair(this->m_Size, m));
		this->m_Size++;
	}

	ifs.close();
}



void OrderFile::updateOrder() {
	if (this->m_Size == 0) {
		return;
	}

	ofstream ofs(ORDER_FILE, ios::out | ios::trunc);
	for (int i = 0; i < m_Size;i++)	{
		ofs << "date:" << this->m_orderData[i]["date"] << " ";
		ofs << "interval:" << this->m_orderData[i]["interval"] << " ";
		ofs << "stuId:" << this->m_orderData[i]["stuId"] << " ";
		ofs << "stuName:" << this->m_orderData[i]["stuName"] << " ";
		ofs << "roomId:" << this->m_orderData[i]["roomId"] << " ";
		ofs << "status:" << this->m_orderData[i]["status"] << endl;
	}
	ofs.close();
}