day1 1.0

import java.util.Scanner;
public class IFELSE{
    
public static void main(String[] args) {
    Scanner scan=new Scanner(System.in);
System.out.println("请输入单价");
double price=scan.nextDouble();
System.out.println("请输入数量");
int count=scan.nextInt();
Double money=price*count;
System.out.println("您购买的总价为"+money);
if(money>20000) {
    System.out.println("恭喜您 此次购物打6折");money=money*0.6;
}
else{
    System.out.println("恭喜您 此次购物打8折");money=money*0.8;
}System.out.println("请输入金额");
double sum=scan.nextDouble();
System.out.println("找零");
System.out.println(sum-money);}