Question

我目前正在制作Rock，Paper，Scissors计划。我们需要包含四个函数，getComputerChoice，getUserChoice，displayChoice和determineWinner。我目前只停留在displayChoice上，我想要显示＆＃34; Weapon＆＃34;用户使用字符串选择，但它不起作用。非常感谢任何帮助/反馈，谢谢。

#include <iostream>
#include <cstdlib>
#include <time.h>
#include <string>
using namespace std;


void getComputerChoice(int& computerChoice);
int getUserChoice(int userChoice);
void displayChoice(int userChoice, int computerChoice);

int main()
{
    int userChoice = 0, computerChoice;

    getUserChoice(userChoice);
    getComputerChoice(computerChoice);
    displayChoice(userChoice, computerChoice);


    return 0;
}

int getUserChoice(int userChoice)
{
    cout << "Game Menu\n"
    << "-----------\n"
    << "1. Rock\n"
    << "2. Paper\n"
    << "3. Scissors\n"
    << "4. Quit\n"
    << "Enter your choice (1-4):";
    cin >> userChoice;
    return (userChoice);
}

void getComputerChoice(int& computerChoice)
{
    srand(time(NULL));
    computerChoice = (rand() % 3) + 1;
}

void displayChoice(int userChoice, int computerChoice)
{
    string uChoice;
    if (userChoice == 1)
        uChoice = "Rock";
    else if (userChoice == 2)
        uChoice = "Paper";
    else if (userChoice == 3)
        uChoice = "Scissors";

    cout << "You selected :" << uChoice << endl;
    cout << "The computer selected :" << computerChoice << endl;
}

Answer 1

您的问题是范围之一，您只是返回传递函数的值而不是用户提供的值作为输入，您应该为此使用单独的变量。你的get函数不需要参数，getComputerChoice函数也应该是int类型。这些更改应该为您提供正确的输出：

#include <iostream>
#include <cstdlib>
#include <time.h>
#include <string>
using namespace std;


int getComputerChoice();
int getUserChoice();
void displayChoice(int userChoice, int computerChoice);

int main()
{
int userChoice = 5;
int computerChoice= 5;

userChoice = getUserChoice();
computerChoice = getComputerChoice();
displayChoice(userChoice, computerChoice);


return 0;
}

int getUserChoice()
{
    int selection=5;
    cout << "Game Menu\n"
    << "-----------\n"
    << "1. Rock\n"
    << "2. Paper\n"
    << "3. Scissors\n"
    << "4. Quit\n"
    << "Enter your choice (1-4):";
    cin >> selection;
    return selection;
}

int getComputerChoice()
{
    srand(time(NULL));
    return (rand() % 3) + 1;
}

void displayChoice(int userChoice, int computerChoice)
{
    string uChoice;
    if (userChoice == 1)
        uChoice = "Rock";
    else if (userChoice == 2)
        uChoice = "Paper";
    else if (userChoice == 3)
        uChoice = "Scissors";

    cout << "You selected : " << uChoice << endl;
    cout << "The computer selected : " << computerChoice << endl;
}

字符串不在函数内打印

1 个答案: