package com.company;

import java.util.Scanner;

public class demo02 {

public static void main(String[] args) {

System.out.println("*******************************");

        System.out.println("1 登陸系統(tǒng)");

        System.out.println("2 退出");

        System.out.println("*******************************");

        //用戶輸入功能編號

        Scanner scanner=new Scanner(System.in);

        if(scanner.hasNextInt()){//用戶需要輸入整數(shù)别伏，才會判斷

            int bianhao1=scanner.nextInt();

            if(bianhao1==1){

System.out.println("二級菜單");

                System.out.println("1 客戶信息管理");

                System.out.println("2 購物結算");

                System.out.println("3 真請回饋");

                System.out.println("4 注銷");

                //進入二級菜單

                System.out.println("輸入功能編號:" );

                int bianhao2=scanner.nextInt();

                switch (bianhao2){

case 1:

System.out.println("購物管理系統(tǒng)>客戶信息管理");

                        System.out.println("1 顯示所有客戶信息");

                        System.out.println("2 添加客戶信息");

                        System.out.println("3 修改客戶信息");

                        System.out.println("4 查詢客戶信息");

                        //......具體客戶信息管理操作

                        break;

                    case 2:

System.out.println("購物結算");

                        System.out.println("請輸入消費金額");

                        int sumMoney=scanner.nextInt();

                        System.out.println("是否參加優(yōu)惠購換活動");

                        System.out.println("1：滿50元，加2元換購百事可樂飲料一瓶");

                        System.out.println("2：滿100元，加3元換購500ml可樂一瓶");

                        System.out.println("3：滿100元，加10元換購5公斤面粉");

                        System.out.println("4：滿200元，加10元換購1個蘇泊爾炒菜鍋");

                        System.out.println("5：滿200元剂娄，加20元換購歐萊雅爽膚水");

                        System.out.println("0：不購煥");

                        System.out.println("請選擇");

                        int sum=scanner.nextInt();

                        int realMoney=0;

                        switch (sum){

case 1:

if(sumMoney>=50){

System.out.println("本次消費金額:"+(realMoney=sumMoney+2));

                                System.out.println("成功換購百事可樂飲料一瓶");}else {

System.out.println("你的購物金額不滿足");

                                    System.out.println("本次消費金額"+(realMoney=sumMoney));

                                }

break;

                                    case 2:

if (sumMoney >=100) {

System.out.println("本次消費金額:" + (realMoney = sumMoney +3));

                                            System.out.println("成功換購500ml可樂一瓶");

                                        }else {

System.out.println("你的購物金額不滿足");

                                            System.out.println("本次消費金額"+(realMoney=sumMoney));

                                        }

break;

                                    case 3:

if (sumMoney >=100) {

System.out.println("本次消費金額:" + (realMoney = sumMoney +10));

                                            System.out.println("成功換購5公斤面粉");

                                        }else {

System.out.println("你的購物金額不滿足");

                                            System.out.println("本次消費金額"+(realMoney=sumMoney));

                                        }

break;

                                    case 4:

if (sumMoney >=200) {

System.out.println("本次消費金額：" + (realMoney = sumMoney +10));

                                            System.out.println("成功換購1個蘇泊爾炒菜鍋");

                                        }else {

System.out.println("你的購物金額不滿足");

                                            System.out.println("本次消費金額"+(realMoney=sumMoney));

                                        }

break;

                                    case 5:

if (sumMoney >=200) {

System.out.println("本次消費金額：" + (realMoney = sumMoney +20));

                                            System.out.println("成功換購歐萊雅爽膚水");

                                        }else {

System.out.println("你的購物金額不滿足");

                                            System.out.println("本次消費金額"+(realMoney=sumMoney));

                                        }

break;

                                    case 0:

System.out.println("本次消費金額：" + (realMoney = sumMoney));

break;

                                }

break;

                    case 3:

System.out.println("購物管理系統(tǒng)>真情回饋");

                        System.out.println("1 幸運大放送");

                        System.out.println("2 幸運抽獎");

                        System.out.println("生日問候");

break;

                    case 4:

System.out.println("注銷");

break;

                }

}else if(bianhao1==2){

System.out.println("退出系統(tǒng)");

            }

}else {

System.out.println("請再輸入一次");

        }

}

}