基于C++的餐飲預(yù)訂系統(tǒng)-創(chuàng)新互聯(lián)

前言
一、系統(tǒng)介紹
二、系統(tǒng)設(shè)計

成都創(chuàng)新互聯(lián)公司網(wǎng)站設(shè)計，為客戶量身定制各類網(wǎng)站建設(shè)業(yè)務(wù)，包括企業(yè)型、電子商務(wù)型、響應(yīng)式網(wǎng)站開發(fā)、行業(yè)門戶型等各類網(wǎng)站，實戰(zhàn)經(jīng)驗豐富，成功案例眾多。以客戶利益為出發(fā)點，成都創(chuàng)新互聯(lián)公司網(wǎng)站制作為客戶規(guī)劃、定制開發(fā)符合企業(yè)需求、帶有營銷價值的網(wǎng)絡(luò)建站方案認(rèn)真對待每一個客戶，我們不用口頭的語言來吹擂我們的優(yōu)秀，數(shù)千家的成功案例見證著我們的成長。

一、系統(tǒng)介紹

一個餐飲預(yù)訂系統(tǒng)。程序運行后，首先選擇用戶類型，然后從文本文件讀入菜單信息

進(jìn)行初始化，根據(jù)用戶類型不同在控制臺界面上提供不同功能選擇。用戶選擇某項功能

后，根據(jù)提示進(jìn)行操作；操作完成后，能返回功能選擇菜單重新選擇，直至用戶退出。

客戶功能：

1) 預(yù)訂——打印出可選菜單，提示用戶選擇；在用戶選擇后，提示用戶輸入個人

信息，記錄下信息，并保存至本地文件。

2) 查詢/退訂——顯示所有的已訂的訂單列表，提示輸入退訂訂單；用戶輸入后，

如果賣家尚未確認(rèn)訂單，則成功退訂并修改本地文件；否則提示退訂失敗。

賣家功能：

1) 添加/刪除菜單——菜單根據(jù)文件初始化后，賣家可以對其進(jìn)行修改，包括添加

和刪除菜式等，修改后將新菜單保存至文件，下次初始化仍可用。

2) 查詢/修改訂單——讀取本地文件，顯示所有的訂單及其狀態(tài)，提示確認(rèn)訂單或

不進(jìn)行操作；賣家選擇訂單后，修改該訂單為確認(rèn)狀態(tài)。

二．設(shè)計過程與討論

1.設(shè)計思路

作為一個自助訂餐系統(tǒng)，除了實現(xiàn)基本功能，還要能提供友好的用戶界面，有良好的提示語句，做到不錯的用戶體驗，并處理大部分的用戶錯誤輸入。

菜單：包含編號，菜名，價格。

訂單：包含菜單，用戶姓名，用戶電話，用戶地址，數(shù)量，訂單日期，訂單狀態(tài)。

首先考慮買家功能。買家的類里存著姓名，地址，電話，點餐數(shù)量，訂餐日期，以及所有該用戶的訂單。

預(yù)訂：如果沒有可選菜單，輸出提示語句。否則，輸出所有菜單。提示用戶輸入選擇。若輸入的菜單信息無效，則提示找不到菜單，請用戶重新輸入。若有效，測提示用戶繼續(xù)輸入，或者用戶選擇下單結(jié)束。點完所有菜時，將所有用戶剛點的菜打印出來，提示用戶輸入個人信息，包括姓名，電話，地址，以及訂單的日期。完畢后，將訂單保存到本地文件。然后返回上一層。

查詢：若用戶之前輸入過姓名，則直接輸出所有已下訂單。否則，提示用戶輸入姓名，并根據(jù)姓名在訂單里查找，然后輸出，返回上一層。

退訂：若該用戶沒有任何訂單，則輸出提示并返回上一層。否則，輸出所有該用戶已下訂單的具體情況，并提示用戶輸入想要取消的訂單，若錯誤輸入，提示用戶繼續(xù)輸入。否則判斷該訂單是否已確認(rèn)，已確認(rèn)則提示用戶訂單不可修改，否則輸出提示語句，取消訂單。然后將新的訂單寫入本地文件。

然后考慮賣家功能。

進(jìn)入賣家菜單，需要輸入密碼。密碼保存在本地文件，默認(rèn)為888888。當(dāng)用戶輸入正確密碼，才可以進(jìn)入系統(tǒng)。輸入錯誤5次會自動退出。進(jìn)入后，有5個功能供選擇。

添加菜單。提示用戶輸入菜式編號，菜名，價格，可以繼續(xù)添加，然后選擇退出。程序加添加后的菜單保存至本地文件。

刪除菜單。打印出所有菜單，提示用戶輸入編號，輸入錯誤則提示無此菜式。否則提示菜式已刪除。然后用戶可以選擇繼續(xù)刪除或返回上一層。

查詢訂單。若無訂單，則提示沒有訂單。否則，輸出所有訂單的詳細(xì)信息。

修改訂單。若沒有未確認(rèn)的訂單，則提示所有訂單已確認(rèn)。否則輸出所有未確認(rèn)的訂單，并為每一個訂單規(guī)定一個編號。用戶可以選擇一鍵確認(rèn)或者逐一確認(rèn)。一鍵確認(rèn)則程序修改所有訂單狀態(tài)并保存至本地文件。逐一確認(rèn)則由用戶輸入編號確認(rèn)，最后在用戶放回上一層的時候保存至本地文件。

修改密碼。先由用戶輸入舊密碼，正確之后提示輸入新密碼。新密碼需輸入兩次，若兩次都一樣，則修改密碼并保存至本地文件。

用戶進(jìn)入階段。如果是點餐者，可以選擇1；如果是賣家，可以選擇2。

二、系統(tǒng)設(shè)計

1.1主函數(shù)頭文件

#include#include#include#include#include#include "Menu.h"
#include "User.h"

//以上均為定義頭文件

#pragma warning(disable : 4267)//VS2022版本，會出現(xiàn)C4267報錯，防止其報錯

using namespace std;
fstream finout;//文件讀和寫字節(jié)流

vectororder;//聲明了一個Order數(shù)組order[]
vectormenu;

void seviceForSeller();//賣家函數(shù)
void seviceForBuyer();//買家函數(shù)

以下為主函數(shù)

int main()
{
	string n;//定義一個字符串n，并初始化為空
	bool success = 0;
	cout<< setw(55)<< "Welcome to the MyBooking system!"<< endl;//setw(55)為預(yù)留55空間
	cout<< "          ----------------------------------------------------------"<< endl;
	//1為買家，2為賣家，3為退出系統(tǒng) 
	cout<< right;//右對齊，默認(rèn)為右對齊
	cout<< endl<< setw(25)<< "1.Buyer"<< setw(15)<< "2.Seller"<< setw(15)<< "3.Exit"<< endl;
	while (cin >>n)
	{
		order.clear();//什么訪問什么來著？
		menu.clear();
		if (n == "3") break;
		//處理錯誤輸入 
		if (n != "1" && n != "2")
		{
			cout<< endl<< "Invalid number!Please input again :"<< endl;
			cout<< endl<< setw(25)<< "1.Buyer"<< setw(15)<< "2.Seller"<< setw(15)<< "3.Exit"<< endl;
			continue;
		}
		if (n == "1") seviceForBuyer();
		else seviceForSeller();
		cout<< right;
		cout<< endl<< setw(25)<< "1.Buyer"<< setw(15)<< "2.Seller"<< setw(15)<< "3.Exit"<< endl;
	}
	return 0;
}

用于讀取文件中的菜單和訂單，需要用戶提前輸入好，儲存在txt文本文檔里

//用于讀取文件中的菜單 
Menu inputMenu()
{
	Menu iMenu;
	string dishID, dishName;
	double price = -1;
	finout >>dishID;
	if (dishID == " " || dishID == "\n") {
		iMenu.setDishID("-1");
		return iMenu;
	}
	finout >>dishName >>price;
	if (price< 0 || price >100000) {
		iMenu.setDishID("-1");
		return iMenu;
	}
	iMenu.setDishID(dishID);
	iMenu.setDishName(dishName);
	iMenu.setPrice(price);
	return iMenu;
}

//用于讀取文件中的訂單 
Order inputOrder()
{
	string dishID, dishName, name, adress, phone;
	double price = -1;
	int year, month, day, hour, modify, num;
	finout >>dishID;
	if (dishID == " " || dishID == "\n")
	{
		Order iOrder;
		iOrder.setDishID("-1");
		return iOrder;
	}
	finout >>dishName >>price >>num >>name >>adress >>phone;
	if (price< 0 || price >100000) {
		Order iOrder;
		iOrder.setDishID("-1");
		return iOrder;
	}
	finout >>year >>month >>day >>hour >>modify;
	Date date(year, month, day, hour);
	Order iOrder(dishName, dishID, price, name, adress, phone, date);
	iOrder.setnum(num);
	if (!modify) iOrder.setModify();
	return iOrder;
}

賣家函數(shù)

//賣家 
void seviceForSeller()
{
	Seller iSeller;
	Order iOrder;
	Menu iMenu;
	//驗證密碼 
	string password;
	finout.open("password.txt", ios::in);
	if (finout.fail())
	{
		cout<< endl<< "The system can't find the file!"<< endl;
		return;
	}
	finout >>password;
	finout.close();
	iSeller.setPassword(password);
	cout<< endl<< "Please input your password ( default is 888888 ) :";
	string str;
	int num = 5;
	cin >>str;
	while (num-- && str != iSeller.getPassword())
	{
		cout<< endl<< "The password is wrong!\nPlease input again : ";
		cin >>str;
	}
	if (num<= 0)
	{
		cout<< endl<< "You have input wrong password five times!"<< endl;
		return;
	}
	//1為增加菜單，2為刪除菜單，3為查詢訂單，4為確認(rèn)訂單，5為設(shè)置密碼，6返回主菜單 
	cout<< endl<< "Please choose the function you want :"<< endl;
	cout<< left;
	cout<< endl<< "           "<< setw(30)<< "1. Append menu"<< setw(20)<< "2. Cancel menu"<< endl;
	cout<< "           "<< setw(30)<< "3. Inquire"<< setw(20)<< "4.Modify"<< endl;
	cout<< "           "<< setw(30)<< "5.Set password"<< setw(20)<< "6.Main Menu"<< endl;
	string choice;
	while (cin >>choice)
	{
		if (choice == "6")
		{
			return;
		}
		//處理錯誤輸入 
		if (choice != "1" && choice != "2" && choice != "3" && choice != "4" && choice != "5")
		{
			cout<< endl<< "Invalid input!Please input anain!"<< endl;
			cout<< endl<< "           "<< setw(30)<< "1. Append menu"<< setw(20)<< "2. Cancel menu"<< endl;
			cout<< "           "<< setw(30)<< "3. Inquire"<< setw(20)<< "4.Modify"<< endl;
			cout<< "           "<< setw(30)<< "5.Set password"<< setw(20)<< "6.Main Menu"<< endl;
			continue;
		}
		//從文件讀取以初始化菜單信息和訂單信息 
		order.clear();
		finout.open("order.txt", ios::in);
		if (finout.fail())
		{
			cout<< endl<< "The system can't find the file!"<< endl;
			break;
		}
		while (!finout.eof())
		{
			iOrder = inputOrder();
			if (iOrder.getDishID() == "-1") break;
			order.push_back(iOrder);
		}
		finout.close();
		menu.clear();
		finout.open("menu.txt", ios::in);
		if (finout.fail())
		{
			cout<< endl<< "The system can't find the file!"<< endl;
			break;
		}
		while (!finout.eof())
		{
			iMenu = inputMenu();
			if (iMenu.getDishID() == "-1") break;
			menu.push_back(iMenu);
		}
		finout.close();
		if (choice == "1")
			iSeller.appendMenu(menu);
		else if (choice == "2")
			iSeller.cancelMenu(menu);
		else if (choice == "3")
			iSeller.inquireOrder(order);
		else if (choice == "4")
			iSeller.modifyOrder(order);
		else
		{
			//修改密碼 
			string str1, str2;
			cout<< right;
			cout<< endl<< setw(35)<< "1.Continue"<< setw(20)<< "2.return"<< endl;
			while (cin >>str1)
			{
				if (str1 == "2") break;
				//處理錯誤輸入 
				if (str1 != "1")
				{
					cout<< "Invalid input!"<< endl;
					cout<< endl<< setw(35)<< "1.Continue"<< setw(20)<< "2.return"<< endl;
					continue;
				}
				cout<< "Please input your old password : ";
				cin >>str1;
				if (str1 == iSeller.getPassword()) break;
				else
				{
					cout<< right;
					cout<< endl<< "Wrong!"<< endl;
					cout<< endl<< setw(35)<< "1.Continue"<< setw(20)<< "2.return"<< endl;
				}
			}
			if (str1 == "2")
			{
				cout<< left;
				cout<< endl<< "           "<< setw(30)<< "1. Append menu"<< setw(20)<< "2. Cancel menu"<< endl;
				cout<< "           "<< setw(30)<< "3. Inquire"<< setw(20)<< "4.Modify"<< endl;
				cout<< "           "<< setw(30)<< "5.Set password"<< setw(20)<< "6.Main Menu"<< endl;
				continue;
			}
			cout<< endl<< "Please input your new password : ";
			cin >>str1;
			cout<< endl<< "Please input again :";
			cin >>str2;
			//兩次輸入的新密碼一樣，則修改密碼，寫入文件 
			if (str1 == str2) {
				finout.open("password.txt", ios::out);
				if (finout.fail())
				{
					cout<< endl<< "The system can't find the file!"<< endl;
					return;
				}
				finout<< str1;
				finout.close();
				iSeller.setPassword(str1);
				cout<< endl<< "The new password have benn set!"<< endl;
			}
			else
			{
				cout<< endl<< "The new password you have input twice times is different !"<< endl;
			}
		}
		cout<< left;
		cout<< endl<< "           "<< setw(30)<< "1. Append menu"<< setw(20)<< "2. Cancel menu"<< endl;
		cout<< "           "<< setw(30)<< "3. Inquire"<< setw(20)<< "4.Modify"<< endl;
		cout<< "           "<< setw(30)<< "5.Set password"<< setw(20)<< "6.Main Menu"<< endl;
	}
	if (choice == "6")
	{
		return;
	}
}

買家函數(shù)

void seviceForBuyer()
{
	Buyer ibuyer;
	Menu iMenu;
	Order iOrder;
	string n;
	// 1為點菜，2為查詢訂單，3為修改訂單 ，4返回主菜單 
	cout<< left;
	cout<< endl<< "Please continue to choose the function you want:"<< endl;
	cout<< endl<< "           "<< setw(20)<< "1. Order"<< setw(20)<< "2. Inquire"<< endl;
	cout<< "           "<< setw(20)<< "3. Cancel"<< setw(20)<< "4.Main Menu"<< endl;
	cin >>n;
	while (n != "4")
	{
		//處理錯誤輸入 
		if (n != "1" && n != "2" && n != "3")
		{
			cout<< endl<< "Invalid input!Please input anain!"<< endl;
			cin >>n;
			continue;
		}
		//從文件讀取以初始化菜單信息和訂單信息 
		order.clear();
		finout.open("order.txt", ios::in);
		if (finout.fail())
		{
			cout<< endl<< "The system can't find the file!"<< endl;
			break;
		}
		while (!finout.eof())
		{
			iOrder = inputOrder();
			if (iOrder.getDishID() == "-1") break;
			order.push_back(iOrder);
		}
		finout.close();
		menu.clear();
		finout.open("menu.txt", ios::in);
		if (finout.fail())
		{
			cout<< endl<< "The system can't find the file!"<< endl;
			break;
		}
		while (!finout.eof())
		{
			iMenu = inputMenu();
			if (iMenu.getDishID() == "-1") break;
			menu.push_back(iMenu);
		}
		finout.close();
		if (n == "1")
			ibuyer.bookOrder(menu, order);
		else if (n == "2")
			ibuyer.inquireOrder(order);
		else if (n == "3")
			ibuyer.modifyOrder(order);
		cout<< left;
		cout<< endl<< "Please continue to choose the function you want:"<< endl;
		cout<< endl<< "           "<< setw(20)<< "1. Order"<< setw(20)<< "2. Inquire"<< endl;
		cout<< "           "<< setw(20)<< "3. Cancel"<< setw(20)<< "4.Main Menu"<< endl;
		cin >>n;
	}
	if (n == "4") return;
}

菜單頭文件

#include#include#includeusing namespace std;

//定義日期類，存年月日及小時 
#ifndef DATE_H
#define DATE_H
class Date
{
private:
	int year, month, day, hour;
public:
	Date();
	Date(int y, int m, int d, int h);
	bool operator ==(Date date2);
	int getYear();
	int getMonth();
	int getDay();
	int getHour();
	void setYear(int);
	void setMonth(int);
	void setDay(int);
	void setHour(int);
};
#endif

#ifndef MENU_H
#define MENU_H
class Menu
{
protected:
	string dishName, dishID;
	double price;
public:
	Menu();
	Menu(string dishName, string dishID, double price);
	void setDishName(string);
	void setDishID(string);
	void setPrice(double);
	string getDishName();
	string getDishID();
	double getPrice();
};
#endif

//Order類存有用戶名，地址，電話，數(shù)量，日期，確認(rèn)狀態(tài) 
#ifndef ORDER_H
#define ORDER_H
class Order :public Menu
{
private:
	string customerName, adress, phone;
	int num;
	Date bookDate;
	bool modify;
public:
	Order();
	Order(string dishName, string dishID, double price, string customerName, string adress, string phone, Date bookDate);
	Order(string dishName, string dishID, double price);
	Order(Menu, int);
	const bool operator==(Order order2);
	string getCustomerName();
	string getAdress();
	string getPhone();
	Date getBookDate();
	bool getModify();
	int getNum();
	bool setCustomerName(string customerName);
	bool setAdress(string adress);
	bool setPhone(string phone);
	bool setnum(int num);
	bool setBookDate(Date bookDate);
	void setModify();
};
#endif

菜單程序

#include#include#include#include#include "Menu.h"
using namespace std;

Date::Date(int y, int m, int d, int h)
{
	year = y;
	month = m;
	day = d;
	hour = h;
}

Date::Date()
{
	year = 2012;
	month = 12;
	day = 12;
	hour = 12;
}

bool Date::operator==(Date date2)
{
	if (date2.year == year && date2.month == month && date2.day == day && date2.hour == hour) return true;
	return false;
}

int Date::getYear()
{
	return year;
}

int Date::getMonth()
{
	return month;
}

int Date::getDay()
{
	return day;
}

int Date::getHour()
{
	return hour;
}

void Date::setYear(int y)
{
	year = y;
}

void Date::setMonth(int m)
{
	month = m;
}

void Date::setDay(int d)
{
	day = d;
}

void Date::setHour(int h)
{
	hour = h;
}

Menu::Menu()
{
}

Menu::Menu(string dishName, string dishID, double price)
{
	this->dishName = dishName;
	this->dishID = dishID;
	this->price = price;
}

void Menu::setDishName(string name)
{
	dishName = name;
}

void Menu::setDishID(string ID)
{
	dishID = ID;
}

void Menu::setPrice(double p)
{
	price = p;
}

string Menu::getDishName()
{
	return dishName;
}

string Menu::getDishID()
{
	return dishID;
}

double Menu::getPrice()
{
	return price;
}


Order::Order()
{
	modify = 1;
}

Order::Order(string dishName, string dishID, double price, string customerName, string adress, string phone, Date date) :Menu(dishName, dishID, price), bookDate(date)
{
	this->customerName = customerName;
	this->adress = adress;
	this->phone = phone;
	modify = 1;
}

Order::Order(string dishName, string dishID, double price) : Menu(dishName, dishID, price)
{
	modify = 1;
}

Order::Order(Menu m, int n) :Menu(m), num(n)
{
	modify = 1;
};

const bool Order::operator==(Order order2)
{
	if (order2.dishID != dishID) return false;
	if (order2.dishName != dishName) return false;
	if (order2.customerName != customerName) return false;
	if (order2.phone != phone) return false;
	if (order2.adress != adress) return false;
	if (!(order2.bookDate == bookDate)) return false;
	return true;
}

string Order::getCustomerName()
{
	return customerName;
}

string Order::getAdress()
{
	return adress;
}

string Order::getPhone() {
	return phone;
}

Date Order::getBookDate()
{
	return bookDate;
}

bool Order::getModify()
{
	return modify;
}

int Order::getNum()
{
	return num;
}

bool Order::setCustomerName(string customerName)
{
	if (!modify) return false;
	this->customerName = customerName;
	return true;
}

bool Order::setAdress(string adress)
{
	if (!modify) return false;
	this->adress = adress;
	return true;
}

bool Order::setPhone(string phone)
{
	if (!modify) return false;
	this->phone = phone;
	return true;
}

void Order::setModify()
{
	modify = 0;
}

bool Order::setBookDate(Date bookDate)
{
	if (!modify) return false;
	this->bookDate = bookDate;
	return true;
}

bool Order::setnum(int num)
{
	if (!modify) return false;
	this->num = num;
	return true;
}

用戶預(yù)訂訂單流程圖

用戶查詢訂單流程圖

用戶修改訂單流程圖

賣家增加、刪除訂單流程圖

賣家查詢、確認(rèn)訂單流程圖

用戶頭文件

#pragma once
#include"Menu.h"
#include#ifndef USER_H
#define USER_H
class User {
private:

public:
	virtual void modifyOrder(vector&) = 0;
	virtual void inquireOrder(vector&) = 0;
};
#endif

//賣家有密碼成員變量 
#ifndef SELLER_H
#define SELLER_H
class Seller :public User {
private:
	string password;
public:
	Seller();
	void modifyOrder(vector&);
	void inquireOrder(vector&);
	void appendMenu(vector&);
	void cancelMenu(vector&);
	void setPassword(string);
	string getPassword();
};
#endif

//買家有名字、地址、電話、訂單日期、自己的訂單數(shù)量 和一個 vector類型的用于存儲買家自己的所有訂單 
#ifndef BUYER_H
#define BUYER_H
class Buyer :public User {
private:
	vectormyOrder;
	string name, adress, phone;
	Date bookDate;
	int num;
public:
	Buyer();
	void bookOrder(vector&, vector&);
	void modifyOrder(vector&);
	void inquireOrder(vector&);
	int getNum();
	string getName();
	void setNum(int);
};
#endif

用戶程序

#include#include#include#include#include#include#include "Menu.h"
#include "User.h"
#pragma warning(disable : 4267)
using namespace std;
fstream inout;

//用于輸出日期 
void printDate(Date date)
{
	cout<< left;
	cout<< date.getYear()<< '/'<< date.getMonth()<< '/'<< date.getDay()<< "-"<< date.getHour()<< 'h';
}

//用于輸出菜單 
void printMenu(Menu m)
{
	cout<< left;
	cout<< setw(20)<< m.getDishID()<< setw(20)<< m.getDishName()<< setw(20)<< m.getPrice()<< endl;
}


//用于輸出訂單 
void printOrder(Order myOrder)
{
	cout<< left;
	cout<< setw(7)<< myOrder.getDishID()<< setw(10)<< myOrder.getDishName()<< setw(6)<< myOrder.getPrice()<< setw(4)<< myOrder.getNum();
	cout<< setw(8)<< myOrder.getCustomerName()<< setw(8)<< myOrder.getPhone()<< setw(12)<< myOrder.getAdress();
	cout<< " "; printDate(myOrder.getBookDate()); cout<< "  ";
	if (myOrder.getModify())
	{
		cout<< setw(10)<< "New"<< endl;
	}
	else cout<< setw(10)<< "Approved"<< endl;
}

//用于將菜單寫入文件 
void outputMenu(Menu& iMenu)
{
	inout<< iMenu.getDishID()<< ' '<< iMenu.getDishName()<< ' '<< iMenu.getPrice()<< endl;
}

//用于將訂單寫入文件 
void outputOrder(Order& iOrder)
{
	Date date = iOrder.getBookDate();
	int modify = iOrder.getModify() ? 1 : 0;
	inout<< iOrder.getDishID()<< ' '<< iOrder.getDishName()<< ' '<< iOrder.getPrice()<< ' '<< iOrder.getNum()<< endl;
	inout<< iOrder.getCustomerName()<< ' '<< iOrder.getAdress()<< ' '<< iOrder.getPhone()<< endl;
	inout<< date.getYear()<< ' '<< date.getMonth()<< ' '<< date.getDay()<< ' '<< date.getHour()<< ' '<< modify<< endl;
}

Buyer::Buyer()
{
	name = "no";
	adress = "no";
	num = 0;
}

string Buyer::getName()
{
	return name;
}

//買家訂菜 
void Buyer::bookOrder(vector& myMenu, vector& order)
{
	int n, m = 0, i, year, month, day, hour, appNum = 0;
	string str;
	char ch;
	n = myMenu.size();
	num = myOrder.size();
	bool can = 1;
	//判斷菜單是否為空 
	if (!n)
	{
		cout<< endl<< "Sorry! There is no dish for you to choose!"<< endl;
		return;
	}
	cout<< left;
	cout<< endl<< "Here is the Menu :"<< endl;
	cout<< endl<< "        "<< setw(20)<< "DishID"<< setw(20)<< "DishName"<< setw(20)<< "Price"<< endl;
	for (i = 0; i< n; ++i)
	{
		cout<< "        ";
		printMenu(myMenu[i]);
	}
	//1為繼續(xù)，2返回上一層 
	cout<< right;
	cout<< endl<< setw(30)<< "1.Continue"<< setw(20)<< "2.return"<< endl;
	while (cin >>str)
	{
		can = 1;
		if (str == "2") break;
		cout<< "Please input the dish ID : ";
		cin >>str;
		for (i = 0; i< n; ++i)
		{
			if (myMenu[i].getDishID() == str)
			{
				myOrder.push_back(Order(myMenu[i], m));
				break;
			}
			//判斷該編號是否存在 
			if (i == n - 1)
			{
				cout<< endl<< "There is no such dish!"<< endl;
				cout<< endl<< setw(30)<< "1.Continue"<< setw(20)<< "2.return"<< endl;
				can = 0;
			}

		}
		if (!can) continue;
		appNum++;
		cout<< endl<< "Please input the count you want : ";
		cin >>m;
		myOrder[myOrder.size() - 1].setnum(m);
		cout<< endl<< setw(30)<< "1.Continue"<< setw(20)<< "2.return"<< endl;
	}
	//判斷有無新增菜單 
	if (appNum == 0)
	{
		cout<< endl<< "You haven't ordered anything!"<< endl;
		return;
	}
	//輸出所有用戶已預(yù)定的菜 
	cout<< left;
	cout<< endl<< "Here is the dish you have ordered:"<< endl;
	cout<< endl<< setw(20)<< "DishID"<< setw(20)<< "DishName"<< setw(20)<< "Price"<< endl;
	for (i = 0; i< myOrder.size(); ++i)
	{
		printMenu(myOrder[i]);
	}
	//判斷此時買家是否為匿名狀態(tài)，是則跳過輸入姓名，地址，電話 
	if (name == "no" || adress == "no")
	{
		cout<< endl<< "Please input your name : ";
		cin >>name;
		cout<< endl<< "Please input your address : ";
		cin >>adress;
		cout<< endl<< "Please input your phone : ";
		cin >>phone;
	}
	cout<< endl<< "Please input the date you want to have you dish,"<< endl;
	cout<< "just as 2013/5/2 14 (year/month/day hour) : "<< endl;
	cin >>year >>ch >>month >>ch >>day >>hour;
	bookDate.setYear(year);
	bookDate.setMonth(month);
	bookDate.setDay(day);
	bookDate.setHour(hour);
	for (int i = num; i< myOrder.size(); ++i) {
		myOrder[i].setCustomerName(name);
		myOrder[i].setAdress(adress);
		myOrder[i].setPhone(phone);
		myOrder[i].setBookDate(bookDate);
	}
	inout.open("order.txt", ios::app);
	if (inout.fail())
	{
		cout<< endl<< "The system can't find the file!"<< endl;
		return;
	}
	for (i = num; i< myOrder.size(); ++i)
	{
		outputOrder(myOrder[i]);
	}
	inout.close();
	num = myOrder.size();
}

//買家查詢訂單 
void Buyer::inquireOrder(vector& order)
{
	//名字是否為空 
	if (name == "no") {
		cout<< endl<< "please input your name : ";
		cin >>name;
	}
	myOrder.clear();
	for (int i = 0; i< order.size(); ++i)
	{
		if (order[i].getCustomerName() == name)
		{
			myOrder.push_back(order[i]);
		}
	}
	num = myOrder.size();
	if (num == 0)
	{
		cout<< endl<< "You haven't ordered any dish!"<< endl;
		return;
	}
	cout<< left;
	cout<< endl<< "Here is the dishes you have ordered :"<< endl;
	cout<< endl<< setw(7)<< "DishID"<< setw(10)<< "DishName"<< setw(6)<< "price"<< setw(4)<< "num"<< setw(8)<< "Name";
	cout<< setw(8)<< "Phone"<< setw(12)<< "Address"<< setw(15)<< "Date"<< setw(10)<< "state"<< endl;
	for (int i = 0; i< num; ++i) {
		printOrder(myOrder[i]);
	}
	return;
}

//買家取消訂單 
void Buyer::modifyOrder(vector& order)
{
	num = myOrder.size();
	if (num == 0)
	{
		cout<< endl<< "You haven't ordered any dish!"<< endl;
		return;
	}
	//輸出買家自已的所有訂單 
	cout<< left;
	cout<< endl<< "The dish you have ordered is :"<< endl;
	cout<< endl<< setw(7)<< "DishID"<< setw(10)<< "DishName"<< setw(6)<< "price"<< setw(4)<< "num"<< setw(8)<< "Name";
	cout<< setw(8)<< "Phone"<< setw(12)<< "Address"<< setw(15)<< "Date"<< setw(10)<< "state"<< endl;
	for (int i = 0; i< num; ++i)
	{
		printOrder(myOrder[i]);
	}
	//選擇1-繼續(xù)或2-返回上一層 
	cout<< right;
	cout<< endl<< setw(30)<< "1.Continue"<< setw(20)<< "2.return"<< endl;
	string str;
	int pos = -1, n = 0;
	Order iOrder;
	int* cancleDish = new int[num + 1], * cancle = new int[order.size()];
	memset(cancleDish, 0, 4 * (num + 1));
	memset(cancle, 0, 4 * (order.size()));
	while (cin >>str)
	{
		if (str == "2") break;
		//判斷無效輸入 
		if (str != "1") {
			cout<< endl<< "Invalid input!"<< endl;
			cout<< endl<< setw(30)<< "1.Continue"<< setw(20)<< "2.return"<< endl;
			continue;
		}
		cout<< endl<< "Please input the dishID : ";
		cin >>str;
		for (int i = 0; i< num; ++i)
		{
			if (myOrder[i].getDishID() == str)
			{
				//該訂單是否已確認(rèn) 
				if (myOrder[i].getModify()) {
					cout<< endl<< "The order have been canceled!"<< endl;
					pos = i;
					break;
				}
				else {
					cout<< endl<< "The order have been approved! You can't cancel it !"<< endl;
					pos = -2;
					break;
				}
			}
		}
		//查看該買家想取消的編號是否存在 
		if (pos< 0) {
			if (pos == -1)
				cout<< endl<< "There is no such dish you have ordered!"<< endl;
		}
		else {
			cancleDish[pos] = 1;
			n++;
		}
		pos = -1;
		cout<< right;
		cout<< endl<< setw(30)<< "1.Continue"<< setw(20)<< "2.return"<< endl;
	}
	//將更新的訂單寫入文件 
	inout.open("order.txt", ios::out);
	if (inout.fail())
	{
		cout<< endl<< "The system can't find the file!"<< endl;
		delete cancleDish; delete cancle;
		return;
	}
	for (int i = 0; i< num; ++i)
	{
		if (cancleDish[i]) {
			for (int j = 0; j< order.size(); ++j)
			{
				if (order[j] == myOrder[i])
				{
					cancle[j] = 1;
					break;
				}
			}
		}
	}
	for (int i = 0; i< order.size(); ++i)
	{
		if (cancle[i]) {
			continue;
		}
		outputOrder(order[i]);
	}
	inout.close();
	num -= n;
	delete cancleDish; delete cancle;
}

int Buyer::getNum()
{
	return num;
}

Seller::Seller()
{
	password = "888888";
}

void Seller::appendMenu(vector& myMenu)
{
	cout<< endl<< "Do you want to append Menu?  Y/N"<< endl;
	string ch;
	int k = myMenu.size();
	while (cin >>ch)
	{
		//判斷無效輸入 
		if (ch != "Y" && ch != "y") break;
		cout<< endl<< "please input the dish name : ";
		string str;
		Menu iMenu;
		double d;
		cin >>str;
		iMenu.setDishName(str);
		cout<< endl<< "Please input the dish ID : ";
		cin >>str;
		iMenu.setDishID(str);
		cout<< endl<< "Please input the price of the dish : ";
		cin >>d;
		iMenu.setPrice(d);
		myMenu.push_back(iMenu);
		cout<< endl<< "The dish have been added to the menu!"<< endl;
		cout<< endl<< "Do you want to continue to append Menu? Y/N"<< endl;
	}
	//將新增菜單寫入文件 
	inout.open("menu.txt", ios::app);
	if (inout.fail())
	{
		cout<< endl<< "The system can't find the file!"<< endl;
		return;
	}
	for (int i = k; i< myMenu.size(); ++i)
	{
		outputMenu(myMenu[i]);
	}
	inout.close();
	return;
}

void Seller::cancelMenu(vector& myMenu)
{
	cout<< endl<< "Do you want to cancel Menu? Y/N"<< endl;
	string str;
	string ch;
	Menu iMenu;
	vector::iterator it = myMenu.begin();
	while (cin >>ch)
	{
		it = myMenu.begin();
		if (ch == "N" || ch == "n") break;
		//判斷無效輸入 
		if (ch != "Y" && ch != "y")
		{
			cout<< endl<< "Invalid input!Please input again!"<< endl;
			cout<< endl<< "Do you want to cancel Menu? Y/N"<< endl;
			continue;
		}
		//輸出所有菜單 
		cout<< left;
		cout<< endl<< "Here is the Menu :"<< endl;
		cout<< endl<< "        "<< setw(20)<< "DishID"<< setw(20)<< "DishName"<< setw(20)<< "Price"<< endl;
		for (int i = 0; i< myMenu.size(); ++i)
		{
			cout<< "        ";
			printMenu(myMenu[i]);
		}
		cout<< endl<< "Please input the dish ID you want cancel : ";
		cin >>str;
		for (int i = 0; i< myMenu.size(); ++i)
		{
			if (myMenu[i].getDishID() == str)
			{
				myMenu.erase(it + i);
				cout<< endl<< "The dish have been canceled!"<< endl;
				break;
			}
			//找不到該編號 
			if (i == myMenu.size() - 1)
			{
				cout<< endl<< "There is no such dish!Please input again!"<< endl;
			}
		}
		cout<< endl<< "Do you want to continue to cancel Menu? Y/N"<< endl;
	}
	//將修改后菜單寫入文件 
	inout.open("menu.txt", ios::out);
	if (inout.fail())
	{
		cout<< endl<< "The system can't find the file!"<< endl;
		return;
	}
	for (int i = 0; i< myMenu.size(); ++i)
	{
		outputMenu(myMenu[i]);
	}
	inout.close();
}

//賣家查詢訂單 
void Seller::inquireOrder(vector& order)
{
	//沒有訂單則輸出提示并返回上一層 
	if (order.size() == 0)
	{
		cout<< endl<< "There is no any order!"<< endl;
		return;
	}
	cout<< left;
	cout<< endl<< "Here is the order :"<< endl;
	cout<< endl<< setw(7)<< "DishID"<< setw(10)<< "DishName"<< setw(6)<< "price"<< setw(4)<< "num"<< setw(8)<< "Name";
	cout<< setw(8)<< "Phone"<< setw(12)<< "Address"<< setw(15)<< "Date"<< setw(10)<< "state"<< endl;
	for (int i = 0; i< order.size(); ++i)
	{
		printOrder(order[i]);
	}
	return;
}

//賣家確認(rèn)訂單 
void Seller::modifyOrder(vector& order)
{
	int* pos = new int[order.size() + 1], count = 0;
	memset(pos, 0, sizeof(pos));
	for (int i = 0; i< order.size(); ++i)
	{
		if (order[i].getModify())
		{
			count++;
			pos[i] = 1;
		}
	}
	//沒有未確認(rèn)訂單則提示后返回上一層 
	if (count == 0)
	{
		cout<< endl<< "All order have been approved!"<< endl;
		return;
	}
	cout<< left;
	cout<< endl<< "Here is the order you haven't approve : "<< endl;
	cout<< endl<< setw(7)<< "DishID"<< setw(10)<< "DishName"<< setw(6)<< "price"<< setw(4)<< "num"<< setw(8)<< "Name";
	cout<< setw(8)<< "Phone"<< setw(12)<< "Address"<< setw(15)<< "Date"<< setw(10)<< "state"<< endl;
	count = 0;
	for (int i = 0; i< order.size(); ++i)
	{
		if (pos[i] && order[i].getModify())
		{
			count++;
			cout<< count<< endl;
			printOrder(order[i]);
		}
	}
	//賣家可選擇 1-全部確認(rèn) 或 2-逐個確認(rèn) 或 3-返回 
	cout<< right;
	cout<< endl<< setw(20)<< "1.Aprove all"<< setw(25)<< "2.Aprove one by one"<< setw(20)<< "3.return"<< endl;
	string n;
	while (cin >>n)
	{
		if (n == "1" || n == "2" || n == "3") break;
		else {
			cout<< endl<< "Invalid input!"<< endl;
			cout<< endl<< setw(20)<< "1.Aprove all"<< setw(25)<< "2.Aprove one by one"<< setw(20)<< "3.return"<< endl;
		}
	}
	if (n == "3") return;
	if (n == "1")
	{
		for (int i = 0; i< order.size(); ++i)
		{
			if (pos[i])
				order[i].setModify();
		}
	}
	else
	{
		cout<< right;
		cout<< endl<< setw(30)<< "1.Continue"<< setw(20)<< "2.return"<< endl;
		int k, m;
		while (cin >>m)
		{
			if (m == 2) return;
			if (m != 1) {
				cout<< endl<< "Invalid input!"<< endl;
				return;
			}
			cout<< endl<< "Please input the number of order:";
			cin >>m;
			//檢驗輸入正確性 
			if (m >count)
			{
				cout<< endl<< "There is only "<< count<< " order!"<< endl;
				cout<< endl<< "Please input again!"<< endl;
			}
			else if (m<= 0)
			{
				cout<< endl<< "The number must be positive !"<< endl;
			}
			else
			{
				k = 0;
				for (int i = 0; i< order.size(); ++i)
				{
					if (pos[i])
					{
						k++;
						if (k == m)
						{
							order[i].setModify();
							cout<< endl<< "The order have approved!"<< endl;
						}
					}
				}
			}
			cout<< right;
			cout<< endl<< setw(30)<< "1.Continue"<< setw(20)<< "2.return"<< endl;
		}
	}
	//將修改后的訂單寫入文件 
	inout.open("order.txt", ios::out);
	if (inout.fail())
	{
		cout<< endl<< "The system can't find the file!"<< endl;
		return;
	}
	for (int i = 0; i< order.size(); ++i)
	{
		outputOrder(order[i]);
	}
	inout.close();

}

void Seller::setPassword(string p)
{
	password = p;
}

string Seller::getPassword()
{
	return password;
}

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