井字棋游戏,遇到一点问题,在第三行第一个或第二行第一个填棋子时,会自动变成平局,这是什么原因?
这是问题截图:
这是代码截屏:
jugde函数,判断列连续里,[i][0]!=' '改为[0][i]!=' '
这里错误的判断成三个相等,然后return回去是个空格,所以会被判为平局
我的完整代码:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
// 初始化行和列
#define ROW 3
#define COL 3
void Menu() // 打印选择页面
{
printf("\n\n\n");
puts("********************************\n");
puts("*********1. play game *********\n");
puts("*********0. exit game *********\n");
puts("********************************\n");
puts("请选择:\n");
}
int Order(int n) // 玩家选择先后
{
puts("请选择先手(1-电脑,0-玩家):");
scanf("%d", &n);
if (n)
return 'Q';
else
return 'P';
}
void Init_Board(char board[ROW][COL], int row, int col) // 初始化棋盘
{
int i, j;
for (i = 0; i < row; i++)
{
for (j = 0; j < col; j++)
{
board[i][j] = ' ';
}
}
}
void Print_Board(char board[ROW][COL], int row, int col)
{
int i = 0;
int j = 0;
for (i = 0; i < row; i++)
{
for (j = 0; j < col; j++)
{
printf(" %c ", board[i][j]);
if (j < col - 1) // 最后一列分割线不需要打印
printf("|");
}
printf("\n");
if (i < row - 1)
{ // 最后一行分割线不需要打印
for (j = 0; j < col; j++)
{
printf("---");
if (j < col - 1) // 最后一列分割线不需要打印
printf("|");
}
}
printf("\n");
}
}
void Play_P(char board[ROW][COL], int row, int col, char ch) // 玩家落子
{
int x = 0;
int y = 0;
puts("玩家落子:");
while (1)
{
puts("请输入一个坐标(用空格隔开):");
scanf("%d %d", &x, &y);
if (1 <= x && x <= row && 1 <= y && y <= col)
{
if (board[x - 1][y - 1] == ' ')
{
board[x - 1][y - 1] = ch;
break;
}
else
puts("该位置不为空,请重新输入\n");
}
else
puts("该位置不存在,请重新输入\n");
}
}
void Play_C(char board[ROW][COL], int row, int col, char ch) // 电脑落子
{
int x = 0;
int y = 0;
puts("电脑落子:");
while (1)
{
x = rand() % row + 1;
y = rand() % col + 1;
if (1 <= x && x <= row && 1 <= y && y <= col)
{
if (board[x - 1][y - 1] == ' ')
{
printf("%d %d\n", x, y);
board[x - 1][y - 1] = ch;
break;
}
}
}
}
int Board_Full(char board[ROW][COL], int row, int col) // 判断棋盘是否装满
{
int i, j;
for (i = 0; i < row; i++)
{
for (j = 0; j < col; j++)
if (board[i][j] == ' ')
return 0;
}
return 1;
}
int Judge(char board[ROW][COL], int row, int col) // 输赢判断
{
int i = 0;
for (i = 0; i < row; i++) // 行连续
{
if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][0] != ' ')
return board[i][0];
}
for (i = 0; i < col; i++) // 列连续
{
if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[i][0] != ' ')
return board[0][i];
}
// 对角线连续
if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[1][1] != ' ')
return board[1][1];
if (board[0][2] == board[1][1] && board[1][1] == board[2][0] && board[1][1] != ' ')
return board[1][1];
// 平局
if (Board_Full(board, row, col))
return 'T';
// 还未有结果
return 'C';
}
void Game()
{
char board[ROW][COL];
char ret;
int bool = 1; // 判断先后手
Init_Board(board, ROW, COL); // 初始化棋盘
Print_Board(board, ROW, COL); // 打印棋盘
int n;
if (Order(n) == 'P') // 玩家先手的情况
{
while (1)
{
// 玩家下棋
Play_P(board, ROW, COL, 'x');
ret = Judge(board, ROW, COL);
if (ret != 'C')
break;
Print_Board(board, ROW, COL);
// 电脑下棋
Play_C(board, ROW, COL, '0');
ret = Judge(board, ROW, COL);
if (ret != 'C')
break;
Print_Board(board, ROW, COL);
printf("\n\n\n");
bool = 1;
}
}
else
{
// 电脑先手的情况
while (1)
{
// 电脑下棋
Play_C(board, ROW, COL, 'x');
ret = Judge(board, ROW, COL);
if (ret != 'C')
break;
Print_Board(board, ROW, COL);
// 玩家下棋
Play_P(board, ROW, COL, '0');
ret = Judge(board, ROW, COL);
if (ret != 'C')
break;
Print_Board(board, ROW, COL);
}
printf("\n\n\n");
bool = 0;
}
// 判断输赢
if (bool)
{
if (ret == 'x')
puts("玩家获胜\n");
else if (ret == '0')
puts("电脑获胜\n");
else
puts("平局\n");
}
else
{
if (ret == 'x')
puts("电脑获胜\n");
else if (ret == '0')
puts("玩家获胜\n");
else
puts("平局\n");
}
Print_Board(board, ROW, COL); // 打印棋盘
}
int main()
{
srand(time(0));
int n = 1;
while (n)
{
Menu();
scanf("%d", &n);
switch (n)
{
case 1:
Game();
break;
case 0:
puts("退出游戏\n");
break;
default:
puts("输入错误,请重新输入!\n");
break;
}
}
return 0;
}