请帮我用c++写一个双人回制对打小游戏，要使用类，有血量攻击力和防御力等

属性，可以进行攻击和防御。

好的，下面是一个基本的双人回合制对打小游戏的C++代码，使用了类和属性。

#include <iostream>
#include <string>
using namespace std;

// 定义角色类
class Role {
public:
    string name;        // 角色名
    int hp;             // 生命值
    int attack;         // 攻击力
    int defense;        // 防御力

    Role(string name, int hp, int attack, int defense) {
        this->name = name;
        this->hp = hp;
        this->attack = attack;
        this->defense = defense;
    }

    void attackTarget(Role& target) {
        int damage = this->attack - target.defense;
        if (damage < 0) {
            damage = 0;
        }
        target.hp -= damage;
        cout << this->name << "对" << target.name << "造成了" << damage << "点伤害！" << endl;
        cout << target.name << "的生命值剩余" << target.hp << endl;
        if (target.hp <= 0) {
            cout << target.name << "已经死亡！" << endl;
        }
    }

    void defenseSelf() {
        cout << this->name << "使用了防御！" << endl;
        this->defense *= 2;
    }
};

int main() {
    Role player1("Player1", 100, 20, 10);
    Role player2("Player2", 100, 18, 12);

    int round = 1;
    while (player1.hp > 0 && player2.hp > 0) {
        cout << "第" << round << "回合开始！" << endl;
        cout << player1.name << "的生命值：" << player1.hp << endl;
        cout << player2.name << "的生命值：" << player2.hp << endl;

        // 玩家1回合
        cout << player1.name << "的回合：" << endl;
        string input;
        do {
            cout << "请选择行动（1.攻击 2.防御）：";
            cin >> input;
        } while (input != "1" && input != "2");

        if (input == "1") {
            player1.attackTarget(player2);
        } else if (input == "2") {
            player1.defenseSelf();
        }

        // 玩家2回合
        cout << player2.name << "的回合：" << endl;
        do {
            cout << "请选择行动（1.攻击 2.防御）：";
            cin >> input;
        } while (input != "1" && input != "2");

        if (input == "1") {
            player2.attackTarget(player1);
        } else if (input == "2") {
            player2.defenseSelf();
        }

        round++;
    }

    if (player1.hp <= 0) {
        cout << player2.name << "获胜！" << endl;
    } else if (player2.hp <= 0) {
        cout << player1.name << "获胜！" << endl;
    }

    return 0;
}

希望这个代码能够满足你的需求！