本次是使用的java语言测试的哦，抽离出一个方法！具有推广下来的建议哦！

package cn.gson.oasys;

import java.util.Scanner;

public class DrinkWater {
public static void main(String[] args) {
buy(20);
}
public static int buy(int money) {
// System.out.print(“请输入金额：”);
// int money = scan.nextInt(); //金额
int bottle = money; //空瓶
int cap = money; //瓶盖
int sum = money; //可以喝的汽水的总瓶数
System.out.println(money+“元直接买的瓶数：”+sum);
while(true){
//换取的饮料瓶数
int changeBottle = bottle/2;
int changeCap = cap/3;
int change = changeBottle + changeCap;
//换取后剩下
int balBottle = bottle%2;
int balCap = cap%3;
//当前已经喝的总瓶数
sum = sum + change;
//饮料喝完后的总的空瓶数喝瓶盖数
bottle = balBottle + change;
cap = balCap + change;

        if(bottle<2 && cap <3){break;}}System.out.println(money+"元可以喝到的总的瓶数："+sum);return sum;
}

}

欢迎大家一起讨论哦！