Tic Tac Toe 数组错误的字符

Question

屏幕截图说明了一切，我使用的字符已正确放入数组中。但是，数组中也会插入一些其他随机字符。我很困惑！

main.cpp :

#include "Players.h"
#include "GameLayout.h"
#include "Game.h"
#include <iostream>
#include <string>

using namespace std;

int main ()
{
    char gameBoard [3][3];
    cout << "**** Welcome to Leviathan's first TicTacToe Game! ****\n\n";
    Players playersObject;
    playersObject.getPlayersNames();
    playersObject.printPlayersNames();
    GameLayout gameObject;
    gameObject.printLayout();
    Game gamestartObject;
    gamestartObject.gameStart(gameBoard);
}

game.cpp :

#include "Players.h"
#include "GameLayout.h"
#include "Game.h"
#include <iostream>
#include <string>

using namespace std;

void Game::gameStart(char board[3][3])
{
    char player1char,player2char;
    size_t i,j;
    cout << "Enter player 1 character :";
    cin >> player1char;
    cout << "Enter player 2 character :";
    cin >> player2char;
    int row,column;
    bool isDone = false;
    while(isDone == false)
    {
        cout << "Player 1->choose row";
        cin >> row;
        cout << "Player 1->choose column";
        cin >> column;
        board[row-1][column-1] = player1char;
        cout << "Player 2->choose row";
        cin >> row;
        cout << "Player 2->choose column";
        cin >> column;
        board[row-1][column-1] = player2char;
        GameLayout layout;
        cout << "  |1||2||3|" <<endl;
        for(i=0; i<3; i++)
            {
                cout << i+1 << "|";
                for(j=0; j<3; j++)
                {
                    cout <<" "<<board[i][j] << " " ;
                }
                cout << endl;
            }
    }
}

Players.cpp :

#include "Players.h"
#include "GameLayout.h"
#include "Game.h"
#include <iostream>
#include <string>

using namespace std;


void Players::getPlayersNames()
{
    string p1,p2;
    cout << "Enter player 1 name : ";
    cin >> p1;
    cout << "\nEnter player 2 name : ";
    cin >> p2;
    _player1Name = p1;
    _player2Name = p2;
}

void Players::printPlayersNames()
{
    cout << "Alright " << _player1Name << " and " << _player2Name <<", the game has begun!\n\n";
}

GameLayout.cpp :

#include "Players.h"
#include "GameLayout.h"
#include "Game.h"
#include <iostream>
#include <string>

using namespace std;
void GameLayout::printLayout()
{
    size_t i,j;
    char board[3][3];
    for(i=0; i<3; i++)
    {
        for(j=0; j<3; j++)
        {
            board[i][j] = '.';
        }
    }
    cout << "  |1||2||3|" <<endl;
    for(i=0; i<3; i++)
    {
        cout << i+1 << "|";
        for(j=0; j<3; j++)
        {
            cout <<" "<<board[i][j] << " " ;
        }
        cout << endl;
    }
}

Game.h :

#ifndef GAME_H
#define GAME_H


class Game
{
    public:
        void gameStart(char board[3][3]);
    private:
};

#endif // GAME_H

游戏布局：

#ifndef GAMELAYOUT_H
#define GAMELAYOUT_H


class GameLayout
{
    public:
        void printLayout();
    private:
};

#endif // GAMELAYOUT_H

Players.h :

#ifndef PLAYERS_H
#define PLAYERS_H
#include <string>


class Players
{
    public:
        void getPlayersNames();
        void printPlayersNames();
    private:
        std::string _player1Name;
        std::string _player2Name;
};

#endif // PLAYERS_H

Answer 1

函数中的局部非静态变量，例如gameBoard，未初始化。您需要明确地初始化它，否则它的内容将是 不确定的 并且读取它的值将导致 未定义的行为。

你可以像这样

char gameBoard [3][3] = { ' ' };

Tic Tac Toe 数组错误的字符

Tic Tac Toe array wrong characters

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tic-tac-toe