vs 2017的第一个C++项目（自动售货机）---笔记

vs 2017的第一个C++项目（自动售货机）—笔记

1. 项目结构

2. Cash

   #pragma once
   class Cash
   {
   public:
   	Cash(void); //无参构造
   	Cash(int c,int t_income); //有参构造
   	int getCash(); //Get函数
   	void dealCash(int money); //商品销售后对余额的处理
   	void dealIncome(int money);
   	void setCash(int money);
   	void setIncome(int money);
   	int getIncome();
   	~Cash(void); //析构
   private:
   	int cash; //余额
   	int income; //收入
   };
   

3. Goods

   #pragma once
   
   class Goods
   {
   public:
   	Goods(void); //无参构造
   	Goods(string goodsName, int goodsCount, int goodsPrice); //有参构造
   	string getName(); //获取名字
   	void setCount(int t_count);
   	void setPrice(int t_price);
   	int getCount();//获取数量
   	int getPrice();//获取价格
   	void sellGoods(int num); //销售商品
   	~Goods(void); //析构
   private:
   	string name; //商品名称
   	int count; //库存数量
   	int price; //商品单价
   };
   

4. 主函数

   #include "Cash.h"
   #include "Goods.h"
   #include <iostream>
   #include <string>
   using namespace std;
   
   int AddGoods(Goods[],Cash&);//添加商品信息
   void ShowInput(); //显示添加商品界面
   void Show(Goods[],int index); //显示货架上的商品
   void doSell(Goods[], Cash&, int); //售货行为
   int main()
   {
   	Cash cash;
   	Goods goodsList[6];
   	int number = AddGoods(goodsList,cash);
   	doSell(goodsList, cash, number);
   	return 0;
   }
   void ShowInput() {
   	cout << "*****************************************" << endl;
   	cout << "****************售货管理*****************" << endl;
   	cout << "*****************************************" << endl;
   	cout << "1.添加新商品  2.设置找零总额  3.退出设置" << endl;
   	cout << "请输入：";
   }
   
   void Show(Goods goodsList[],int index) {
   	cout << "****************************************" << endl;
   	cout << "******************售货******************" << endl;
   	cout << "****************************************" << endl;
   	for (int i = 0; i < index; i++) {
   		if (goodsList[i].getCount() > 0) {
   			cout << i + 1 <<  ". " << goodsList[i].getName() << "  ";
   		}
   		else {
   			cout << i + 1 << ". " << goodsList[i].getName() << "(售空)  ";
   		}
   	}
   	cout << endl;
   	cout << "8.查看机器剩余找零  9.查看钱柜金额  0.退出" << endl;
   	cout << "请输入：";
   }
   
   int AddGoods(Goods goodsList[],Cash &cash) {
   	ShowInput();
   	int index = 0;
   	int num;
   	while (cin >> num) {
   		if (num == 1) {
   			cout << "添加格式：商品名  商品数量  商品金额" << endl;
   			cout << "例:可乐 5 3 代表添加五瓶单价位3的可乐(最多可添加5件商品)" << endl;
   			cout << "请输入添加商品:";
   			string goodsName;
   			int price, number;
   			cin >> goodsName >> number >> price;
   			goodsList[index++] = Goods(goodsName,number,price);
   		}
   		else if (num == 2) {
   			cout << "设置找零总金额(元):";
   			int t_cash;
   			cin >> t_cash;
   			cash.setCash(t_cash);
   		}
   		else if (num == 3) {
   			if (cash.getCash() == 0) {
   				ShowInput();
   				cout << "总找零初始不能为0\n输入2设置找零总金额" << endl;
   				continue;
   			}
   			if (index == 0) {
   				cout << "请至少添加一件商品\n输入1进行商品添加" << endl;
   				ShowInput();
   				continue;
   			}
   			return index;
   		}
   		else {
   			cout << "请按提示输入！！！" << endl;
   		}
   		ShowInput();
   	}
   	return index;
   }
   
   void doSell(Goods goodsList[], Cash &cash, int index) {
   	Show(goodsList, index);
   	int num;
   	while (cin >> num) {
   		if (num <= index && num > 0) {
   			num -= 1;
   			cout << goodsList[num].getName() << " 剩余 " << goodsList[num].getCount() << " 件" << endl;
   			cout << goodsList[num].getName() << " 的价格为 " << goodsList[num].getPrice() << " 元/件" << endl;
   			cout << "请输入投放的金额：";
   			int price;
   			cin >> price;
   			while (price < goodsList[num].getPrice()) {
   				cout << "投放金额不足，请重新投放金额:" << endl;
   				cin >> price;
   			}
   			if (goodsList[num].getCount() == 0) {
   				cout << "商品存货不足" << endl;
   			}
   			else if (price == goodsList[num].getPrice()) {
   				cout << "购买成功，请取走您的商品" << endl;
   				goodsList[num].setCount(goodsList[num].getCount() - 1);
   				cash.dealIncome(price);
   			}
   			else if(cash.getCash() < (price - goodsList[num].getPrice()) )
   			{
   				cout << "找零不足，请下次购买0.0" << endl;
   			}
   			else {
   				cout << "购买成功，找零 " << price - goodsList[num].getPrice() << " 元" << endl;
   				cout << "请取走您的商品和零钱" << endl;
   				goodsList[num].setCount(goodsList[num].getCount() - 1);
   				cash.dealIncome(price);
   				cash.dealCash(price - goodsList[num].getPrice());
   			}
   			
   		}
   		else if (num == 8) {
   			cout << "剩余找零为：" << cash.getCash() << endl;
   		}
   		else if (num == 9) {
   			cout << "今日总收入：" << cash.getIncome() << endl;
   		}
   		else if (num == 0) {
   			break;
   		}
   		else {
   			cout << "请按提示输入！！！" << endl;
   		}
   		Show(goodsList, index);
   	}
   }
   
   

5. 运行结果