为什么我的摇滚剪刀游戏无法正常工作？

Question

我正在尝试用剪刀纸玩游戏，在尝试自学c ++时练习一些基础知识。我让它简短地工作了，但是我调整了一些cout内容，现在它短路了一些if语句。任何关于为什么不起作用的见解将不胜感激。

#include <string>
#include <iostream>
#include <cstdlib>
#include <ctime>

游戏功能。要求输入播放器。将变量随机分配并猜测为整数，然后将其分配给字符串result和result_2。最后，while循环跟踪得分。

void Play_rps() {
    int guess;
    int i = 0;
    int o = 0;
    std::string result;
    std::string result_2;
    std::cout << " Rock, Paper, Scissors. GO!! \n";
    while (i != 2 || o != 2) {

        int random = rand() % 4;
        std::cout << " 1.) Rock \n 2.) Paper \n 3.) Scissors \n";
        std::cin >> guess;

        switch (guess) {
        case 1:
            result = "rock";
            break;
        case 2:
            result = "paper";
            break;
        case 3:
            result = "scissors";
            break;

        }
        switch (random) {
        case 1:
            result_2 = "rock";
            break;
        case 2:
            result_2 = "paper";
            break;
        case 3:
            result_2 = "scissors";
            break;
        }

嵌套语句是否确定每个回合的结果并增加获胜计数器。

        if (result == result_2) {

            std::cout << " you threw " << result << std::endl;
            std::cout << " your opponant threw " << result_2 << std::endl;
            std::cout << " TIE! \n" << std::endl;
        }
        else if (result == " rock" && result_2 == " paper") {
            std::cout << " you threw " << result << std::endl;
            std::cout << " your opponant threw " << result_2 << std::endl;
            std::cout << " Paper Beats Rock!\n You Lose! \n" << std::endl;
            o++;
        }
        else if (result == " paper" && result_2 == " rock") {
            std::cout << " you threw " << result << std::endl;
            std::cout << " your opponant threw " << result_2 << std::endl;
            std::cout << " Paper Beats Rock!\n You win! \n" << std::endl;
            i++;
        }
        else if (result == " scissors" && result_2 == " paper") {
            std::cout << " you threw " << result << std::endl;
            std::cout << " your opponant threw " << result_2 << std::endl;
            std::cout << " scissors Beat Paper!\n You Win! \n" << std::endl;
            i++;

        }
        else if (result == " rock" && result_2 == " scissors") {
            std::cout << " you threw " << result << std::endl;
            std::cout << " your opponant threw " << result_2 << std::endl;
            std::cout << " Rock Beats Scissors!\n You Win! \n" << std::endl;
            i++;
        }
        else if (result == " scissors" && result_2 == " rock") {
            std::cout << " you threw " << result << std::endl;
            std::cout << " your opponant threw " << result_2 << std::endl;
            std::cout << " Rock Beat Scissors! \n You lose! \n" << std::endl;
            o++;
        }
        else if (result == " paper" && result_2 == " scissors") {
            std::cout << " you threw " << result << std::endl;
            std::cout << " your opponant threw " << result_2 << std::endl;
            std::cout << " scissors Beat Paper!\n You Lose! \n" << std::endl;
            o++;
        }

        if (i == 2) {
            std::cout << " YOU ARE VICTORIOUS \n";
        }
        else if (o == 2) {
            std::cout << " DEFEAT \n";
        }


    }
}

据我所知，主要功能正常运行，但是在编译时会出现一条警告：“ t-time是一个无符号int，这可能会导致数据丢失”，这是我得到的唯一通知。

        int main()
         {
            srand(time(NULL));
            int choice;

            do {
                std::cout << "0.) Quit \n1.) Play Game \n";
                std::cin >> choice;

                switch (choice) {
                case 0:
                    std::cout << "Thanks for nothing! \n";
                    return 0;

                case 1:
                    Play_rps();
                    break;

                default:
                    std::cout << " That's not a valid choice. \n";
                }
            } while (choice != 0);
        } 

Answer 1

删除==语句中的空白，您可以分解一些cout调用

    //" paper" --> "paper",  " rock" --> "rock"

    std::cout << " you threw " << result << std::endl;
    std::cout << " your opponant threw " << result_2 << std::endl;

    if (result == result_2) {
        std::cout << " TIE! \n" << std::endl;
    }
    else if (result == "rock" && result_2 == "paper") {
        std::cout << " Paper Beats Rock!\n You Lose! \n" << std::endl;
        o++;
    }
    else if (result == "paper" && result_2 == "rock") {
        std::cout << " Paper Beats Rock!\n You win! \n" << std::endl;
        i++;
    }
    else if (result == "scissors" && result_2 == "paper") {
        std::cout << " scissors Beat Paper!\n You Win! \n" << std::endl;
        i++;

    }
    else if (result == "rock" && result_2 == "scissors") {
        std::cout << " Rock Beats Scissors!\n You Win! \n" << std::endl;
        i++;
    }
    else if (result == "scissors" && result_2 == "rock") {
        std::cout << " Rock Beat Scissors! \n You lose! \n" << std::endl;
        o++;
    }
    else if (result == "paper" && result_2 == "scissors") {
        std::cout << " scissors Beat Paper!\n You Lose! \n" << std::endl;
        o++;
    }