第三章会员打折

import java.util.Scanner;

public class DemoCustDisPlus {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
            /**
             * 普通顾客购物满100元	9折
             * 会员购物	8折
             * 会员购物满200元	7.5折
             */
        System.out.println("请输入是否是会员:是(y)/否(除y任意字符):");
        //输出是否是会员
        String isVip = scanner.next();
        System.out.println("请输入购物金额:");
        //输出购物金额
        double money = scanner.nextDouble();
        //定义折扣
        double discount = 0;
        //如果是金额
        if (isVip.equals("y")) {
            //折扣8折
            discount = 0.8;
            //当购物金额满200
            if (money >= 200) {
                //折扣75折
                discount = 0.75;
            }
        } else {//不是会员
            //不打折
            discount = 1;
            //购物金额满100
            if (money >= 100) {
                //折扣9折
                discount = 0.9;
            }
        }
        System.out.println("购物金额"+money+",实际支付:" + money * discount);
    }
}