基于C++的奶茶点餐系统

功能模块设计

基于C++语言实现的奶茶点餐系统，采用面向对象的思维进行设计，包含管理员和用户两个功能模块。

管理员模块

• 添加奶茶信息
• 删除奶茶信息
• 修改奶茶信息
• 查询奶茶信息
• 历史订单记录一览表
• 奶茶订单处理
• 管理用户信息
• 清空系统数据
• 注销登录

用户模块

• 奶茶信息一览表
• 小程序点餐
• 申请退款
• 个人历史订单
• 修改密码
• 注销登录
• 用户注册

主要运行界面

管理员菜单

奶茶信息一览表

用户订单处理

小程序点餐

系统完整代码

#define _CRT_SECURE_NO_DEPRECATE
#include <iostream>
#include <algorithm>
#include <string>
#include <iomanip>
#include <fstream>
#include <vector>
#include <sstream>
#include <ctime>
#include <cstdlib>
using namespace std;

//工具类
class Tool
{
	public:
		//获取系统当前时间
		static string getTime()
		{
			time_t t = time(NULL);
			struct tm* now = localtime(&t);
			std::stringstream time;
			time << now->tm_year + 1900 << "-";
			time << now->tm_mon + 1 << "-";
			time << now->tm_mday << "_";
			time << now->tm_hour << ":";
			time << now->tm_min;
			return time.str();
		}
};

//奶茶类
class Tea
{
	public:
		string teaName;              //名称
		vector<string> ingredients;  //主辅料
		int num;                     //主辅料的种类数量
		string base;                 //茶底
		double largePrice;           //大杯的价格
		double mediumPrice;          //中杯的价格
		string description;          //掌柜描述
		Tea()
		{
		}
		Tea(string teaName,vector<string> ingredients, int num, string base, double largePrice, double mediumPrice, string description)
		{
			this->teaName = teaName;
			this->ingredients = ingredients;
			this->num = num;
			this->base = base;
			this->largePrice = largePrice;
			this->mediumPrice = mediumPrice;
			this->description = description;
		}
		static void showHeader()
		{
			cout << left << setw(20) << "名称";
			cout << left << setw(14) <<  "茶底";
			cout << left << setw(12) << "大杯价格";
			cout << left << setw(12) << "中杯价格" << endl;
		}
		void showTeaInfo()
		{
			cout << left << setw(20) << teaName;
			cout << left << setw(14) <<  base;
			cout << left << setw(12) << largePrice;
			cout << left << setw(12) << mediumPrice << endl;
		}
		void showTeaDetail()
		{
			cout<<"\t名称：";
			cout << left << setw(24) << teaName;
			cout<<"主料：";
			for(int i = 0; i < ingredients.size(); ++i) cout<<ingredients[i]<<" ";
			cout<<endl;
			cout<<"\t茶底：";
			cout << left << setw(24) << base;
			cout<<"价格：";
			cout<<"大杯 "<<largePrice<<" 元，中杯 "<<mediumPrice<<" 元"<<endl;
			cout<<"\t掌柜描述："<<description<<endl;
		}
};

// 人类  用户和管理员都通过这个类定义
class Person
{
	public:
		string name;     //用户名  作为主键  唯一标识
		string pwd;      //登录系统的密码
		double money;    //当前消费
		string dotime;   //注册时间
		string mark;     //标志  mark为"1" 表示为管理员  mark为"2"表示为乘客
		Person()
		{
		}
		Person(string name, string pwd, double money, string dotime, string mark)
		{
			this->name = name;
			this->pwd = pwd;
			this->money = money;
			this->dotime = dotime;
			this->mark = mark;
		}
		//输出用户表的某一行
		void showPersonInfo()
		{
			cout << left << setw(14) << name;
			cout << left << setw(16) << pwd;
			cout << left << setw(10) << money;
			cout << left << setw(14) << dotime << endl;
		}
		//输出表头
		static void showHeader()
		{
			cout << left << setw(14) << "用户名";
			cout << left << setw(16) << "密码";
			cout << left << setw(10) << "当前消费";
			cout << left << setw(14) << "注册时间" << endl;
		}
};
//奶茶订单类
class Order
{
	public:
		string id; //订单号
		string teaName; //奶茶名称
		string cupSize; //规格：大杯 中杯
		double price;   //价格
		string sugar;   //甜度：全糖  七分糖  五分糖  去糖
		string tem;     //温度：正常冰  少冰  常温  热
		int cupNum;     //杯数
		string buyer;    //订购者
		string buytime;  //订购时间
		string state;    //出餐状态
		Order()
		{
		}
		Order(string id, string teaName, string cupSize, double price, string sugar, string tem, int cupNum, string buyer, string buytime, string state)
		{
			this->id = id;
			this->teaName = teaName;
			this->cupSize = cupSize;
			this->price = price;
			this->sugar = sugar;
			this->tem = tem;
			this->cupNum = cupNum;
			this->buyer = buyer;
			this->buytime = buytime;
			this->state = state;
		}
		~Order()
		{
		}
		static void showHeader()
		{
			cout << left << setw(8) << "订单号";
			cout << left << setw(20) <<  "奶茶名称";
			cout << left << setw(8) << "规格";
			cout << left << setw(8) << "单价";
			cout << left << setw(8) << "甜度";
			cout << left << setw(8) << "温度";
			cout << left << setw(8) << "杯数";
			cout << left << setw(10) << "订购者";
			cout << left << setw(20) << "订购时间";
			cout << left << setw(10) << "出餐状态" << endl;
		}
		void showOrderInfo()
		{
			cout << left << setw(8) << id;
			cout << left << setw(20) << teaName;
			cout << left << setw(8) << cupSize;
			cout << left << setw(8) << price;
			cout << left << setw(8) << sugar;
			cout << left << setw(8) << tem;
			cout << left << setw(8) << cupNum;
			cout << left << setw(10) << buyer;
			cout << left << setw(20) << buytime;
			cout << left << setw(10) << state << endl;
		}
};

//奶茶点餐系统类 
class TeaSystem
{
	public:
		vector<Tea> ts;
		vector<Order> os;
		vector<Person> ps;
		Person admin;

		TeaSystem()
		{
		}
		TeaSystem(vector<Tea> ts, vector<Order> os, vector<Person> ps, Person admin)
		{
			this->ts = ts;
			this->os = os;
			this->ps = ps;
			this->admin = admin;
		}
		~TeaSystem()
		{
		}
		//设置管理员的账号密码
		void setAdmin(string name, string pwd, string mark, string dotime, double money)
		{
			this->admin.name = name;
			this->admin.pwd = pwd;
			this->admin.mark = mark;
			this->admin.dotime = dotime;
			this->admin.money = money;
		}
		//初始化
		void init()
		{
			readFile(); //读取文件
		}
		//登录菜单
		void menu()
		{
			string sel = "0";
			system("cls");
			cout << "\t\t\t************欢迎来到蜜雪冰城****************" << endl;
			cout << "\t\t\t你可以进行以下操作:" << endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t|             1   管理员登录               |" << endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t|             2   用户登录                 |" << endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t|             3   用户注册                 |" << endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t|             0   退出                     |" << endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t请选择【0-3】：";
			cin >> sel;
			while(sel != "0" && sel != "1" && sel != "2" && sel != "3")
			{
				cout << "\t\t\t输入不合法,请重新选择【0-3】：";
				cin >> sel;
			}
			if(sel == "1")
			{
				this->login(sel);
				this->menu();
			}
			else if(sel == "2")
			{
				this->login(sel);
				this->menu();
			}
			else if(sel == "3")
			{
				this->reg();
				this->menu();
			}
			else
			{
				exit(0);
			}
		}
		//注册函数：乘客通过reg函数注册
		void reg()
		{
			Person p;
			p.mark = "2";
			cout<<"\t\t\t请填写用户信息："<<endl;
			cout << "\t\t\t用户名：";
			bool check = false;
			do
			{
				check = false;
				cin >> p.name;
				for(int i = 0; i < ps.size(); ++i)
				{
					if(p.name == ps[i].name)
					{
						cout<<"\t\t\t该用户名已存在，请重新输入：";
						check = true;
						break;
					}
				}
			}
			while(check);
			cout<<"\t\t\t输入密码：";
			cin>>p.pwd;
			p.money = 0;
			p.dotime = Tool::getTime();
			ps.push_back(p);
			writeFile();
			cout<<"\t\t\t注册成功！"<<endl;
			cout<<"\t\t\t";
			system("pause");
		}

		//登录函数：用户和管理员都通过login函数登录
		void login(string sel)
		{
			Person p;
			p.mark = sel;
			cout<<"\t\t\t请填写用户信息："<<endl;
			cout<<"\t\t\t输入用户名：";
			cin>>p.name;
			cout<<"\t\t\t输入密码：";
			cin>>p.pwd;
			if(p.mark == "1")
			{
				if(p.name == this->admin.name && p.pwd == this->admin.pwd)
				{
					cout<<"\t\t\t管理员登录成功！"<<endl;
					this->aMenu(admin);
				}
				else
				{
					cout<<"\t\t\t用户名或密码输入错误"<<endl;
				}
				cout<<"\t\t\t";
				system("pause");
			}
			else if(p.mark == "2")
			{
				bool flag = false;
				for(int i = 0; i < this->ps.size(); ++i)
				{
					if(p.name == ps[i].name && p.pwd == ps[i].pwd)
					{
						flag = true;
						cout<<"\t\t\t用户登录成功！"<<endl;
						this->pMenu(p);
					}
				}
				if(!flag) cout<<"\t\t\t用户名或密码输入错误！"<<endl;
				cout<<"\t\t\t";
				system("pause");
			}
		}

		//顾客菜单
		void pMenu(Person& p)
		{
			string sel = "0";
			system("cls");
			cout << "\t\t\t**********欢迎来到蜜雪冰城点餐系统**********" << endl;
			cout << "\t\t\t当前用户：" << p.name <<"（普通用户）"<< endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t|        1   奶茶信息一览表                |" << endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t|        2   小程序点餐                    |" << endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t|        3   申请退款                      |" << endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t|        4   个人历史订单                  |" << endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t|        5   修改密码                      |" << endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t|        0   注销登录                      |" << endl;
			cout << "\t\t\t|------------------------------------------|" << endl;
			cout << "\t\t\t请选择【0-5】：";
			cin >> sel;
			while(sel != "0" && sel != "1" && sel != "2" && sel != "3" && sel != "4" && sel != "5")
			{
				cout << "\t\t\t输入不合法,请重新选择【0-5】：";
				cin >> sel;
			}
			if(sel == "1")
			{
				this->displayList(); //奶茶信息一览表
				this->pMenu(p);
			}
			else if(sel == "2")
			{
				this->order(p);  //小程序点餐
				this->pMenu(p);
			}
			else if(sel == "3")
			{
				this->refund(p);       //申请退款
				this->pMenu(p);
			}
			else if(sel == "4")
			{
				this->myOrders(p);       //个人历史订单
				this->pMenu(p);
			}
			else if(sel == "5")
			{
				this->updatePwd(p);  //修改密码
				this->pMenu(p);
			}
			else if(sel == "0")     //注销登录
			{
				this->menu();
			}
		}

		//管理员菜单
		void aMenu(Person& p)
		{
			string sel = "0";
			system("cls");
			cout << "\t\t\t*********欢迎来到蜜雪冰城后台管理系统**************" << endl;
			cout << "\t\t\t当前用户：" << this->admin.name <<"（管理员）"<< endl;
			cout << "\t\t\t|-------------------------------------------------|" << endl;
			cout << "\t\t\t|               1   添加奶茶信息                  |" << endl;
			cout << "\t\t\t|-------------------------------------------------|" << endl;
			cout << "\t\t\t|               2   删除奶茶信息                  |" << endl;
			cout << "\t\t\t|-------------------------------------------------|" << endl;
			cout << "\t\t\t|               3   修改奶茶信息                  |" << endl;
			cout << "\t\t\t|-------------------------------------------------|" << endl;
			cout << "\t\t\t|               4   查询奶茶信息                  |" << endl;
			cout << "\t\t\t|-------------------------------------------------|" << endl;
			cout << "\t\t\t|               5   奶茶信息一览表                |" << endl;
			cout << "\t\t\t|-------------------------------------------------|" << endl;
			cout << "\t\t\t|               6   历史订单记录一览表            |" << endl;
			cout << "\t\t\t|-------------------------------------------------|" << endl;
			cout << "\t\t\t|               7   奶茶订单处理                  |" << endl;
			cout << "\t\t\t|-------------------------------------------------|" << endl;
			cout << "\t\t\t|               8   管理用户信息                  |" << endl;
			cout << "\t\t\t|-------------------------------------------------|" << endl;
			cout << "\t\t\t|               9   清空系统数据                  |" << endl;
			cout << "\t\t\t|-------------------------------------------------|" << endl;
			cout << "\t\t\t|               0   注销登录                      |" << endl;
			cout << "\t\t\t|-------------------------------------------------|" << endl;
			cout << "\t\t\t请选择【0-9】：";
			cin >> sel;
			while(sel != "0" && sel != "1" && sel != "2" && sel != "3" && sel != "4" && sel != "5" && sel != "6" && sel != "7" && sel != "8" && sel != "9")
			{
				cout << "\t\t\t输入不合法,请重新选择【0-9】：";
				cin >> sel;
			}
			if(sel == "1")
			{
				this->insertList();
				this->aMenu(p);
			}
			else if(sel == "2")
			{
				this->deleteList();
				this->aMenu(p);
			}
			else if(sel == "3")
			{
				this->updateList();
				this->aMenu(p);
			}
			else if(sel == "4")
			{
				this->selectList();
				this->aMenu(p);
			}
			else if(sel == "5")
			{
				this->displayList();
				this->aMenu(p);
			}
			else if(sel == "6")
			{
				this->displayOrders();
				this->aMenu(p);
			}
			else if(sel == "7")
			{
				this->manageOrders();
				this->aMenu(p);
			}
			else if(sel == "8")
			{
				this->manageUsers();
				this->aMenu(p);
			}
			else if(sel == "9")
			{
				this->clearList();
				this->aMenu(p);
			}
			else if(sel == "0")
			{
				this->menu();
			}
		}

		//读取文件
		void readFile()
		{
			//读取文件book.txt  对应容器 bs
			ifstream ifs;
			ifs.open("tea.txt", ios::in);
			int tn = 0; //用来接收奶茶种类数量的值
			ifs >> tn;
			for(int i = 0; i < tn; i++)
			{
				Tea t;
				ifs >> t.teaName >> t.num >> t.base >> t.largePrice >> t.mediumPrice >> t.description;
				string str;
				for(int j = 0; j < t.num; j++)
				{
					ifs >> str;
					t.ingredients.push_back(str);
				}
				ts.push_back(t);
			}
			ifs.close();
			//读取文件person.txt  对应容器 ps
			ifstream jfs;
			jfs.open("person.txt", ios::in);
			int pn = 0; //用来接收系统中注册人数的值
			jfs >> pn;
			for(int i = 0; i < pn; i++)
			{
				Person p;
				jfs >> p.name >> p.pwd >> p.money >> p.dotime >> p.mark;
				ps.push_back(p);
			}
			jfs.close();

			//读取文件order.txt  对应容器 os
			ifstream kfs;
			kfs.open("order.txt", ios::in);
			int cnt = 0; //用来接收系统中订单的数量
			kfs >> cnt;
			for(int i = 0; i < cnt; i++)
			{
				Order o;
				kfs >> o.id >> o.teaName >> o.cupSize >> o.price >> o.sugar >> o.tem >> o.buyer >> o.buytime >> o.state;
				os.push_back(o);
			}
			kfs.close();
		}

		//写入文件
		void writeFile()
		{
			//写入文件book.txt  对应容器 bs
			ofstream ofs;
			ofs.open("tea.txt", ios::out);
			ofs << ts.size() << endl; //先写入图书数量
			for (int i = 0; i < ts.size(); i++)
			{

				ofs << ts[i].teaName << " " << ts[i].num << " " << ts[i].base << " "
				    << ts[i].largePrice << " " << ts[i].mediumPrice << " " << ts[i].description << endl;
				for(int j = 0; j < ts[i].ingredients.size(); j++)
				{
					ofs << ts[i].ingredients[j] << endl;
				}
			}
			ofs.close();

			//写入文件person.txt  对应容器 ps
			ofstream pfs;
			pfs.open("person.txt", ios::out);
			pfs << ps.size() << endl; //先写入用户数量
			for (int i = 0; i < ps.size(); i++)
			{
				pfs << ps[i].name << " " << ps[i].pwd << " " << ps[i].money << " "
				    << ps[i].dotime << " " << ps[i].mark << endl;
			}
			pfs.close();

			//写入文件order.txt  对应容器 os
			ofstream qfs;
			qfs.open("order.txt", ios::out);
			qfs << os.size() << endl; //先写入订单数量
			for (int i = 0; i < os.size(); i++)
			{
				qfs << os[i].id << " " << os[i].teaName << " " << os[i].cupSize << " " << os[i].price
				    << " " << os[i].sugar << " " << os[i].tem << " " << os[i].buyer << " " << os[i].buytime << " " << os[i].state << endl;
			}
			qfs.close();
		}
		//添加奶茶信息 ：
		void insertList()
		{
			while(true)
			{
				system("cls");
				cout << "\t************************************欢迎来到添加奶茶信息功能****************************************" << endl;
				cout << "\t当前用户：" << this->admin.name << endl;
				string sel = "0";
				cout << "\t-----------------" << endl;
				cout << "\t1 添加奶茶信息" << endl;
				cout << "\t2 返回主菜单" << endl;
				cout << "\t-----------------" << endl;
				cout << "\t请进行选择【1-2】：";
				cin >> sel;
				while(sel != "1" && sel != "2")
				{
					cout << "\t输入不合法,请重新选择【1-2】：";
					cin >> sel;
				}
				if(sel == "1")
				{
					string flag = "1";
					while (flag == "1")
					{
						cout << "\t开始信息录入："<<endl;
						Tea t;
						cout << "\t奶茶名称：";
						bool check = false;
						do
						{
							check = false;
							cin >> t.teaName;
							for(int i = 0; i < ts.size(); ++i)
							{
								if(t.teaName == ts[i].teaName)
								{
									cout<<"\t系统中已存在该奶茶信息，请重新输入：";
									check = true;
									break;
								}
							}
						}
						while(check);
						cout << "\t输入配料信息：" << endl;
						int k = 0;
						string option = "1";
						while(option == "1")
						{
							string st;
							cout << "\t第" << k + 1 << "种配料：";
							k++;
							cin >> st;
							t.ingredients.push_back(st);
							cout << "\t第" << k << "种配料添加成功！是否继续添加？（1 是 0 否）" << endl;
							cout << "\t请进行选择【0-1】：";
							cin >> option;
							while(option != "0" && option != "1")
							{
								cout << "\t输入不合法,请重新选择【0-1】：";
								cin >> option;
							}
						}
						t.num = t.ingredients.size();
						cout << "\t奶茶茶底：";
						cin >> t.base;
						cout << "\t大杯价格：";
						cin >> t.largePrice;
						cout << "\t中杯价格：";
						cin >> t.mediumPrice;
						cout << "\t掌柜描述：";
						cin >> t.description;
						ts.push_back(t);
						writeFile();
						cout << "\n\t奶茶信息添加成功！是否继续添加？（1 是 0 否）" << endl;
						cout << "\t请进行选择【0-1】：";
						cin >> flag;
						while(flag != "0" && flag != "1")
						{
							cout << "\t输入不合法,请重新选择【0-1】：";
							cin >> flag;
						}
					}
					cout << "\t";
					system("pause");
				}
				else
				{
					break;
				}
			}
		}

		void deleteList()
		{
			while (true)
			{
				system("cls");
				cout << "\t************************************欢迎来到删除奶茶信息功能****************************************" << endl;
				cout << "\t当前用户：" << this->admin.name << endl;
				cout << "\t奶茶信息一览表"<<endl;
				this->traverseTea1();
				string sel = "0";
				cout << "\t-----------------" << endl;
				cout << "\t1 按奶茶名称删除" << endl;
				cout << "\t2 返回主菜单" << endl;
				cout << "\t-----------------" << endl;
				cout << "\t请进行选择【1-2】：";
				cin >> sel;
				while(sel != "1" && sel != "2")
				{
					cout << "\t输入不合法,请重新选择【1-2】：";
					cin >> sel;
				}
				if (sel == "1")
				{
					string keyName;
					bool flag = false;
					cout << "\t请输入待删除的奶茶名称：";
					cin >> keyName;
					for (vector<Tea>::iterator it = ts.begin(); it != ts.end(); ++it)
					{
						if (it->teaName == keyName)
						{
							flag = true;
							cout<< "\n\t"<< keyName << "的信息如下："<<endl;
							line(100);
							it->showTeaDetail();
							line(100);
							cout << "\t是否确认删除该奶茶信息？（1 是 0 否）" << endl;
							cout << "\t请进行选择【0-1】：";
							string ch = "0";
							cin >> ch;
							while(ch != "0" && ch != "1")
							{
								cout << "\t输入不合法,请重新选择【0-1】：";
								cin >> ch;
							}
							if (ch == "0") break;
							else
							{
								ts.erase(it);
								writeFile();
								cout << "\t删除成功！" << endl;
								break;
							}
						}
					}
					if (!flag) cout << "\t无法查询到该奶茶信息，无法删除！\n" << endl;
					cout << "\t";
					system("pause");
				}
				else
				{
					break;
				}
			}
		}

		//修改奶茶信息
		void updateList()
		{
			while(true)
			{
				system("cls");
				cout << "\t*****************************************欢迎来到修改奶茶信息功能*********************************************" << endl;
				cout << "\t当前用户：" << this->admin.name << endl;
				cout << "\t奶茶信息一览表"<<endl;
				this->traverseTea1();
				string sel = "0";
				cout << "\t---------------------------" << endl;
				cout << "\t1 按奶茶名称修改" << endl;
				cout << "\t2 返回主菜单" << endl;
				cout << "\t---------------------------" << endl;
				cout << "\t请进行选择【1-2】：";
				cin >> sel;
				while(sel != "1" && sel != "2")
				{
					cout << "\t输入不合法,请重新选择【1-2】：";
					cin >> sel;
				}
				if(sel == "1")
				{
					bool flag = false;
					string keyName;
					cout << "\t请输入待修改奶茶的名称：";
					cin >> keyName;
					for (int i = 0; i < ts.size(); i++)
					{
						if (ts[i].teaName == keyName)
						{
							flag = true;
							cout << "\t待修改奶茶当前信息如下：" << endl;
							line(110);
							ts[i].showTeaDetail();
							line(110);
							Tea t = ts[i];
							cout << "\t请输入修改后的奶茶名称：";
							bool check = false;
							do
							{
								check = false;
								cin >> t.teaName;
								for(int j = 0; j < ts.size(); ++j)
								{
									if(t.teaName == ts[j].teaName && i != j)
									{
										cout<<"\t系统中已存在该奶茶信息，请重新输入：";
										check = true;
										break;
									}
								}
							}
							while(check);
							cout << "\t请输入修改后的配料信息："<<endl;
							int k = 0;
							string option = "1";
							while(option == "1")
							{
								string st;
								cout << "\t第" << k + 1 << "种配料：";
								k++;
								cin >> st;
								t.ingredients.push_back(st);
								cout << "\t第" << k << "种配料添加成功！是否继续添加？（1 是 0 否）" << endl;
								cout << "\t请进行选择【0-1】：";
								cin >> option;
								while(option != "0" && option != "1")
								{
									cout << "\t输入不合法,请重新选择【0-1】：";
									cin >> option;
								}
							}
							t.num = t.ingredients.size();
							cout << "\t请输入修改后的茶底：";
							cin >> t.base;
							cout << "\t请输入修改后的大杯价格：";
							cin >> t.largePrice;
							cout << "\t请输入修改后的中杯价格：";
							cin >> t.mediumPrice;
							cout << "\t请输入修改后的掌柜描述：";
							cin >> t.description;
							cout << "\t是否确认修改？（1 是 0 否）" << endl;
							cout << "\t请进行选择【0-1】：";
							string ch = "0";
							cin >> ch;
							while(ch != "0" && ch != "1")
							{
								cout << "\t输入不合法,请重新选择【0-1】：";
								cin >> ch;
							}

							if (ch == "0") break;
							else
							{
								ts[i] = t;
								cout << "\t修改成功！" << endl;
								writeFile();
								break;
							}
						}
					}
					if (!flag) cout << "\t无法查询到该奶茶信息，无法修改！\n" << endl;
					cout<<"\t";
					system("pause");
				}
				else
				{
					break;
				}
			}
		}

		//查询奶茶信息
		void selectList()
		{
			while (true)
			{
				system("cls");
				cout << "\t*****************************************欢迎来到查询奶茶信息功能*********************************************" << endl;
				cout << "\t-----------------" << endl;
				cout << "\t1 按奶茶名称查询" << endl;
				cout << "\t2 按奶茶茶底查询" << endl;
				cout << "\t3 返回主菜单" << endl;
				cout << "\t-----------------" << endl;
				cout << "\t请进行选择【1-3】：";
				string sel = "0";
				cin >> sel;
				while(sel != "1" && sel != "2" && sel != "3")
				{
					cout << "\t输入不合法,请重新选择【1-3】：";
					cin >> sel;
				}
				if (sel == "1")
				{
					string keyName;
					bool flag = false;
					cout << "\t请输入待查询奶茶的名称：";
					cin >> keyName;
					cout << "\t查询结果如下：" << endl;
					for (int i = 0; i < ts.size(); i++)
					{
						if (ts[i].teaName == keyName)
						{
							flag = true;
							cout<<"\t" << keyName << "详细信息："<<endl;
							line(110);
							ts[i].showTeaDetail();
							line(110);
							break;
						}
					}
					if (!flag) cout << "\t无法查询到此奶茶相关信息！\n" << endl;
					cout << "\t";
					system("pause");
				}
				else if(sel == "2")
				{
					string keyBase;
					bool flag = false;
					cout << "\t请输入待查询奶茶的茶底：";
					cin >> keyBase;
					cout << "\t查询结果如下：" << endl;
					for (int i = 0; i < ts.size(); i++)
					{
						if (ts[i].base == keyBase)
						{
							flag = true;
							line(110);
							ts[i].showTeaDetail();
						}
					}
					if(flag) line(110);
					if (!flag) cout << "\t无法查询到此奶茶相关信息！\n" << endl;
					cout << "\t";
					system("pause");
				}
				else
				{
					break;
				}
			}
		}
		//遍历奶茶容器 输出方式采用格式1 
		void traverseTea1()
		{
			line(55);
			cout<<"\t";
			Tea::showHeader();
			line(55);
			for (int i = 0; i < ts.size(); i++)
			{
				cout << "\t";
				ts[i].showTeaInfo();
			}
			line(55);
		}
		//遍历奶茶容器 输出方式采用格式2
		void traverseTea2()
		{

			for (int i = 0; i < ts.size(); i++)
			{
				line(110);
				ts[i].showTeaDetail();
			}
			line(110);
		}
		//输出横线 n代表长度 
		void line(int n)
		{
			cout<<"\t";
			for(int i = 0; i < n; ++i) cout<<"-";
			cout<<endl;
		}
		//遍历订单容器 
		void traverseOrders()
		{
			line(107);
			cout<<"\t";
			Order::showHeader();
			line(107);
			for (int i = 0; i < os.size(); i++)
			{
				cout << "\t";
				os[i].showOrderInfo();
			}
			line(107);
		}
		//遍历用户信息 主要用于其它函数调用
		void traverseUsers()
		{
			line(60);
			cout<<"\t";
			Person::showHeader();
			line(60);
			for(int i = 0; i < ps.size(); i++)
			{
				cout<<"\t";
				ps[i].showPersonInfo();
			}
			line(60);
		}
		//奶茶信息一览表
		void displayList()
		{
			system("cls");
			cout << "\t******************************************欢迎来到奶茶信息一览表**********************************************" << endl;
			cout << "\t奶茶信息一览表"<<endl;
			this->traverseTea2();
			cout << "\t";
			system("pause");
		}
		// 历史订单记录一览表
		void displayOrders()
		{
			system("cls");
			cout << "\t****************************************欢迎来到历史订单记录一览表********************************************" << endl;
			cout << "\t历史订单记录一览表"<<endl;
			this->traverseOrders();		
			cout << "\t";
			system("pause");
		}

		//处理订单
		void manageOrders()
		{
			while(true)
			{
				system("cls");
				cout << "\t******************************************欢迎来到订单处理功能*********************************************" << endl;
				cout <<"\t当前未出餐订单如下：" << endl;
				line(107);
				cout<<"\t";
				Order::showHeader();
				line(107);
				for (int i = 0; i < os.size(); i++)
				{
					if(os[i].state == "未出餐")
					{
						cout << "\t";
						os[i].showOrderInfo();
					}
				}
				line(107);
				string sel = "0";
				cout << "\t---------------------------" << endl;
				cout << "\t1 处理订单" << endl;
				cout << "\t2 返回主菜单" << endl;
				cout << "\t---------------------------" << endl;
				cout << "\t请进行选择【1-2】：";
				cin >> sel;
				while(sel != "1" && sel != "2")
				{
					cout << "\t输入不合法,请重新选择【1-2】：";
					cin >> sel;
				}
				if(sel == "1")
				{
					cout << "\t请输入待处理的订单号：";
					string keyId;
					cin>>keyId;
					bool flag = false;
					for (int i = 0; i < os.size(); i++)
					{
						if(os[i].id == keyId && os[i].state == "已出餐")
						{
							flag = true;
							cout<<"\t该订单已出餐，无需重复处理！"<<endl;
							cout<<"\t";
							system("pause");
							break;
						}
						else if(os[i].id == keyId && os[i].state == "未出餐")
						{
							flag = true;
							cout<<"\t待处理订单信息如下："<<endl;
							line(107);
							cout<<"\t";
							Order::showHeader();
							line(107);
							cout<<"\t";
							os[i].showOrderInfo();
							line(107);
							cout << "\t是否立即出餐？（1 是 0 否）" << endl;
							cout << "\t请进行选择【0-1】：";
							string ch = "0";
							cin >> ch;
							while(ch != "0" && ch != "1")
							{
								cout << "\t输入不合法,请重新选择【0-1】：";
								cin >> ch;
							}
							if (ch == "0") break;
							else
							{
								os[i].state = "已出餐";
								writeFile();
								cout << "\t出餐成功！" << endl;
								cout<<"\t";
								system("pause");
								break;
							}
						}
					}
					if(!flag)
					{
						cout<<"\t系统中无法查询到该订单信息！"<<endl;
						cout<<"\t";
						system("pause");
					}
				}
				else
				{
					break;
				}
			}
		}

		//管理用户功能：包含添加新用户和删除用户  管理员特有权限
		void manageUsers()
		{
			while(true)
			{
				system("cls");
				cout << "\t************************************欢迎来到管理用户功能****************************************" << endl;
				cout << "\t普通用户信息表"<<endl;
				this->traverseUsers();
				string sel = "0";
				cout << "\t-----------------" << endl;
				cout << "\t1 添加新用户" << endl;
				cout << "\t2 删除用户" << endl;
				cout << "\t3 返回主菜单" << endl;
				cout << "\t-----------------" << endl;
				cout << "\t请进行选择【1-3】：";
				cin >> sel;
				while(sel != "1" && sel != "2" && sel != "3")
				{
					cout << "\t输入不合法,请重新选择【1-3】：";
					cin >> sel;
				}
				if(sel == "1")
				{
					Person p;
					p.mark = "2";
					cout<<"\t输入用户名：";
					bool check = false;
					do
					{
						check = false;
						cin >> p.name;
						for(int i = 0; i < ps.size(); ++i)
						{
							if(p.name == ps[i].name)
							{
								cout<<"\t该用户名已存在，请重新输入：";
								check = true;
								break;
							}
						}
					}
					while(check);
					cout<<"\t输入密码：";
					cin>>p.pwd;
					p.money = 0;
					p.dotime = Tool::getTime();
					p.mark = "2";
					ps.push_back(p);
					writeFile();
					cout<<"\t添加成功！"<<endl;
					cout<<"\t";
					system("pause");
				}
				else if(sel == "2")
				{
					string keyName;
					bool flag = false;
					cout << "\t请输入待删除的用户名：";
					cin >> keyName;

					for (vector<Person>::iterator it = ps.begin(); it != ps.end(); ++it)
					{
						if (it->name == keyName)
						{
							flag = true;
							cout << "\t待删除用户的基本信息如下：" << endl;
							line(60);
							cout<<"\t";
							Person::showHeader();
							line(60);
							cout<<"\t";
							it->showPersonInfo();
							line(60);
							cout << "\t是否确认删除该用户？（1 是 0 否）" << endl;
							cout << "\t请进行选择【0-1】：";
							string ch = "0";
							cin >> ch;
							while(ch != "0" && ch != "1")
							{
								cout << "\t输入不合法,请重新选择【0-1】：";
								cin >> ch;
							}
							if (ch == "0") break;
							else
							{
								ps.erase(it);
								writeFile();
								cout << "\t删除成功！" << endl;
								break;
							}
						}
					}
					if (!flag) cout << "\t查无此人，无法删除！\n" << endl;
					cout << "\t";
					system("pause");
				}
				else
				{
					break;
				}
			}
		}

		//小程序点餐 
		void order(Person& p)
		{
			while(true)
			{
				system("cls");
				cout << "\t*******************************************欢迎来到小程序点餐功能*********************************************" << endl;
				cout << "\t当前用户：" << p.name <<"（普通用户）"<< endl;
				cout << "\t本店有以下口味的饮品："<<endl;
				this->traverseTea1();
				string sel = "0";
				cout << "\t-----------------" << endl;
				cout << "\t1 点餐" << endl;
				cout << "\t2 返回主菜单" << endl;
				cout << "\t-----------------" << endl;
				cout << "\t请进行选择【1-2】：";
				cin >> sel;
				while(sel != "1" && sel != "2")
				{
					cout << "\t输入不合法,请重新选择【1-2】：";
					cin >> sel;
				}
				if(sel == "1")
				{
					Order o;
					Tea t;
					string keyName;
					cout<<"\t输入想订购的奶茶名称：";
					bool flag = true;
					cin>>keyName;
					for(int i = 0; i < ts.size(); ++i)
					{
						if(ts[i].teaName == keyName)
						{
							flag = false;
							line(110);
							ts[i].showTeaDetail();
							line(110);
							o.teaName = keyName;
							cout<<"\t请选择规格(大杯 中杯)：";
							cin >> o.cupSize;
							while(o.cupSize != "大杯" && o.cupSize != "中杯")
							{
								cout<<"\t输入非法！请重新选择：";
								cin >> o.cupSize;
							}
							if(o.cupSize == "大杯") o.price = ts[i].largePrice;
							else o.price = ts[i].mediumPrice;
							cout<<"\t请选择甜度(全糖 七分糖 五分糖 去糖)：";
							cin >> o.sugar;
							cout<<"\t请选择温度(正常冰 少冰 常温 热)：";
							cin >> o.tem;
							cout<<"\t请输入订购杯数：";
							cin >> o.cupNum;
							o.buyer = p.name;
							o.state = "未出餐";
							cout << "\t"<<o.cupNum<<"杯" << ts[i].teaName<< "，共计" << o.price * o.cupNum << "元，是否确认下单？（1 是 0 否）" << endl;
							cout << "\t请进行选择【0-1】：";
							string ch = "0";
							cin >> ch;
							while(ch != "0" && ch != "1")
							{
								cout << "\t输入不合法,请重新选择【0-1】：";
								cin >> ch;
							}
							if(ch == "0") break;
							else
							{
								o.buytime = Tool::getTime();
								if(os.size() > 0) o.id = to_string(atoi(os.back().id.c_str()) + 1);
								else o.id = to_string(os.size() + 1);
								os.push_back(o);
								writeFile();
								cout<<"\t下单成功！"<<endl;
								cout <<"\t";
								system("pause");
								break;
							}
						}
					}
					if(flag)
					{
						cout<<"\t抱歉！本店没有该种饮品！"<<endl;
						cout <<"\t";
						system("pause");
					}
				}
				else if(sel == "2")
				{
					break;
				}
			}
		}
		//申请退款 
		void refund(Person& p)
		{
			while(true)
			{
				system("cls");
				cout << "\t*******************************************欢迎来到申请退款功能********************************************" << endl;
				cout << "\t当前用户：" << p.name <<"（普通用户）"<< endl;
				cout << "\t您可以选择您未出餐的订单进行退订及申请退款，您未出餐的订单如下："<<endl;
				line(107);
				cout<<"\t";
				Order::showHeader();
				line(107);
				for (int i = 0; i < os.size(); i++)
				{
					if(os[i].buyer == p.name && os[i].state == "未出餐")
					{
						cout << "\t";
						os[i].showOrderInfo();
					}
				}
				line(107);
				string sel = "0";
				cout << "\t-----------------" << endl;
				cout << "\t1 申请退款" << endl;
				cout << "\t2 返回主菜单" << endl;
				cout << "\t-----------------" << endl;
				cout << "\t请进行选择【1-2】：";
				cin >> sel;
				while(sel != "1" && sel != "2")
				{
					cout << "\t输入不合法,请重新选择【1-2】：";
					cin >> sel;
				}
				if(sel == "1")
				{
					Order o;
					Tea t;
					string keyId;
					cout<<"\t输入想申请退款的订单号：";
					bool flag = true;
					cin>>keyId;
					for(vector<Order>::iterator it = os.begin(); it != os.end(); ++it)
					{
						if(it->id == keyId && it->state == "未出餐")
						{
							flag = false;
							cout <<"\t您这一单的信息如下："<<endl;
							line(107);
							cout<<"\t";
							Order::showHeader();
							line(107);
							cout << "\t";
							it->showOrderInfo();
							line(107);
							cout<<"\t是否确认申请退款？（1 是 0 否）";
							cout << "\t请进行选择【0-1】：";
							string ch = "0";
							cin >> ch;
							while(ch != "0" && ch != "1")
							{
								cout << "\t输入不合法,请重新选择【0-1】：";
								cin >> ch;
							}
							if(ch == "0") break;
							else
							{
								double temp = (it->price) * (it->cupNum);
								os.erase(it);
								writeFile();
								cout<<"\t退款成功！"<< temp << "元已到账！" << endl;
								cout <<"\t";
								system("pause");
								break;
							}
						}
						else if(it->id == keyId && it->state == "已出餐")
						{
							cout<<"\t抱歉，已出餐订单无法退款！"<<endl;
							cout<<"\t";
							system("pause");
							break;
						}
					}
					if(flag)
					{
						cout<<"\t抱歉！您的历史订单记录中没有该订单相关信息，请检查是否输入有误！"<<endl;
						cout <<"\t";
						system("pause");
					}
				}
				else if(sel == "2")
				{
					break;
				}
			}
		}
		//个人历史订单记录一览表
		void myOrders(Person& p)
		{
			system("cls");
			cout << "\t*************************************欢迎来到个人历史订单记录一览表****************************************" << endl;
			cout << "\t个人历史订单记录一览表"<<endl;
			line(107);
			cout<<"\t";
			Order::showHeader();
			line(107);
			for (int i = 0; i < os.size(); i++)
			{
				if(os[i].buyer == p.name)
				{
					cout << "\t";
					os[i].showOrderInfo();
				}
			}
			line(107);
			cout << "\t";
			system("pause");
		}

		//修改用户密码
		void updatePwd(Person& p)
		{
			while(true)
			{
				string sel = "0";
				system("cls");
				cout << "\t**************************************欢迎来到修改密码功能*****************************************" << endl;
				cout << "\t当前用户：" << p.name <<"（普通用户）"<< endl;
				cout << "\t------------------" << endl;
				cout << "\t1 修改密码" << endl;
				cout << "\t2 返回主菜单" << endl;
				cout << "\t------------------" << endl;
				cout << "\t请选择【1-2】：";
				cin >> sel;
				while(sel != "1" && sel != "2")
				{
					cout << "\t输入不合法,请重新输入【1-2】：";
					cin >> sel;
				}
				if(sel == "1")
				{
					cout <<"\t输入当前密码：";
					string tmpPwd;
					cin>>tmpPwd;
					while(tmpPwd != p.pwd)
					{
						cout<<"\t输入错误，请重新输入：";
						cin>>tmpPwd;
					}
					cout<<"\t输入新密码：";
					string newPwd;
					cin>>newPwd;
					cout << "\t确认修改？（1 是 0 否）" << endl;
					cout << "\t请进行选择【0-1】：";
					string ch = "0";
					cin >> ch;
					while(ch != "0" && ch != "1")
					{
						cout << "\t输入不合法,请重新选择【0-1】：";
						cin >> ch;
					}
					if(ch == "1")
					{
						for(int i = 0; i < ps.size(); i++)
						{
							if(ps[i].name == p.name && ps[i].pwd == p.pwd)
							{
								ps[i].pwd = newPwd;
								break;
							}
						}
						writeFile();
						cout<<"\t修改成功！自动返回登录界面！"<<endl;
						cout<<"\t";
						system("pause");
						this->menu();
					}
				}
				else if(sel == "2")
				{
					break;
				}
			}
		}

		//清空系统所有数据
		void clearList()
		{
			while (true)
			{
				string sel = "0";
				system("cls");
				cout << "\t************************************欢迎来到清空系统数据功能***************************************" << endl;
				cout << "\t当前用户：" << this->admin.name <<"（管理员）"<< endl;
				cout << "\t------------------" << endl;
				cout << "\t1 确认清空系统数据" << endl;
				cout << "\t2 返回主菜单" << endl;
				cout << "\t------------------" << endl;
				cout << "\t请慎重选择【1-2】：";
				cin >> sel;
				while(sel != "1" && sel != "2")
				{
					cout << "\t输入不合法,请重新输入【1-2】：";
					cin >> sel;
				}
				if (sel == "1")
				{
					ts.clear();
					ps.clear();
					os.clear();
					cout << "\t清空成功！" << endl;
					cout << "\t";
					system("pause");
					writeFile();
				}
				else
				{
					break;
				}
			}
		}
};

int main()
{
	TeaSystem tst;
	//设置管理员账号：admin  密码：123 后三个参数为默认参数
	tst.setAdmin("admin", "123", "1", Tool::getTime(), 0); 
	tst.init(); //初始化
	tst.menu(); //登录菜单
	return 0;
}

运行方法

1. 新建一个cpp文件，命名为”main.cpp”。
2. 将系统完整代码复制粘贴至”main.cpp”中。
3. 利用Dev C++运行”main.cpp”即可（系统管理员默认账号：admin 密码：123）。