c++编写猜拳小游戏

以下是C++编写猜拳小游戏的示例代码：

#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;

int main()
{
    int player; // 玩家出拳
    int computer; // 电脑出拳
    int result; // 比赛结果

    // 生成随机数种子
    srand(time(NULL));

    // 电脑随机出拳
    computer = rand() % 3 + 1;

    // 玩家出拳
    cout << "请出拳：1--石头，2--剪刀，3--布" << endl;
    cin >> player;

    // 判断玩家出拳是否合法
    while (player != 1 && player != 2 && player != 3)
    {
        cout << "输入有误，请重新输入：";
        cin >> player;
    }

    // 输出玩家和电脑出拳
    cout << "你出了";
    switch (player)
    {
    case 1:
        cout << "石头。";
        break;
    case 2:
        cout << "剪刀。";
        break;
    case 3:
        cout << "布。";
        break;
    }
    cout << endl;

    cout << "电脑出了";
    switch (computer)
    {
    case 1:
        cout << "石头。";
        break;
    case 2:
        cout << "剪刀。";
        break;
    case 3:
        cout << "布。";
        break;
    }
    cout << endl;

    // 判断胜负
    if (player == computer)
    {
        result = 0; // 平局
    }
    else if (player == 1 && computer == 2 || player == 2 && computer == 3 || player == 3 && computer == 1)
    {
        result = 1; // 玩家胜利
    }
    else
    {
        result = -1; // 电脑胜利
    }

    // 输出比赛结果
    if (result == 0)
    {
        cout << "平局！" << endl;
    }
    else if (result == 1)
    {
        cout << "你赢了！" << endl;
    }
    else
    {
        cout << "你输了！" << endl;
    }

    return 0;
}