#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int getComputerChoice() {
    int choices[] = {1, 2, 3}; // 1代表石头，2代表剪刀，3代表布
    int randomIndex = rand() % 3;
    return choices[randomIndex];
}

int getPlayerChoice() {
    int choice;
    printf("请输入你的选择（1-石头，2-剪刀，3-布）：");
    scanf("%d", &choice);
    while (choice < 1 || choice > 3) {
        printf("输入无效，请重新输入（1-石头，2-剪刀，3-布）：");
        scanf("%d", &choice);
    }
    return choice;
}

void determineWinner(int playerChoice, int computerChoice) {
    if (playerChoice == computerChoice) {
        printf("平局！\n");
    } else if ((playerChoice == 1 && computerChoice == 2) ||
               (playerChoice == 2 && computerChoice == 3) ||
               (playerChoice == 3 && computerChoice == 1)) {
        printf("你赢了！\n");
    } else {
        printf("你输了！\n");
    }
}

int main() {
    srand(time(NULL)); // 初始化随机数种子

    int playerChoice, computerChoice;

    do {
        playerChoice = getPlayerChoice();
        computerChoice = getComputerChoice();

        printf("电脑选择了：");
        switch (computerChoice) {
            case 1:
                printf("石头\n");
                break;
            case 2:
                printf("剪刀\n");
                break;
            case 3:
                printf("布\n");
                break;
        }

        determineWinner(playerChoice, computerChoice);

        printf("再玩一轮？（1-是，0-否）：");
        int playAgain;
        scanf("%d", &playAgain);
    } while (playAgain == 1);

    printf("游戏结束。\n");

    return 0;
}