java扫雷代码

以下是一个简单的 Java 扫雷游戏代码示例：

import java.util.Random;
import java.util.Scanner;

public class Minesweeper {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        Random random = new Random();

        System.out.println("欢迎来到扫雷游戏！");

        // 设置雷区大小
        System.out.print("请输入雷区的行数：");
        int rows = scanner.nextInt();
        System.out.print("请输入雷区的列数：");
        int cols = scanner.nextInt();

        // 设置雷数
        System.out.print("请输入雷数：");
        int mines = scanner.nextInt();

        // 初始化雷区
        int[][] board = new int[rows][cols];
        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                board[i][j] = 0;
            }
        }

        // 随机布雷
        int count = 0;
        while (count < mines) {
            int x = random.nextInt(rows);
            int y = random.nextInt(cols);
            if (board[x][y] == 0) {
                board[x][y] = -1;
                count++;
            }
        }

        // 计算每个格子周围的雷数
        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                if (board[i][j] == -1) {
                    continue;
                }
                int numMines = 0;
                for (int k = i - 1; k <= i + 1; k++) {
                    for (int l = j - 1; l <= j + 1; l++) {
                        if (k < 0 || k >= rows || l < 0 || l >= cols) {
                            continue;
                        }
                        if (board[k][l] == -1) {
                            numMines++;
                        }
                    }
                }
                board[i][j] = numMines;
            }
        }

        // 开始游戏
        int[][] revealed = new int[rows][cols];
        boolean gameover = false;
        while (!gameover) {
            // 打印当前状态
            System.out.println("当前状态：");
            for (int i = 0; i < rows; i++) {
                for (int j = 0; j < cols; j++) {
                    if (revealed[i][j] == 0) {
                        System.out.print("# ");
                    } else if (revealed[i][j] == 1) {
                        System.out.print(board[i][j] + " ");
                    } else if (revealed[i][j] == 2) {
                        System.out.print("* ");
                    }
                }
                System.out.println();
            }

            // 输入下一步操作
            System.out.print("请输入操作（格式：x y r/l）：");
            int x = scanner.nextInt();
            int y = scanner.nextInt();
            String op = scanner.next();

            // 执行操作
            if (op.equals("r")) {
                if (board[x][y] == -1) {
                    System.out.println("你输了！");
                    gameover = true;
                } else {
                    revealed[x][y] = 1;
                }
            } else if (op.equals("l")) {
                if (board[x][y] == -1) {
                    revealed[x][y] = 2;
                } else {
                    System.out.println("你输了！");
                    gameover = true;
                }
            } else {
                System.out.println("无效操作！");
            }

            // 判断是否胜利
            int countRevealed = 0;
            for (int i = 0; i < rows; i++) {
                for (int j = 0; j < cols; j++) {
                    if (revealed[i][j] == 1) {
                        countRevealed++;
                    }
                }
            }
            if (countRevealed == rows * cols - mines) {
                System.out.println("你赢了！");
                gameover = true;
            }
        }

        scanner.close();
    }
}

该代码实现了一个简单的扫雷游戏，包括设置雷区大小和雷数、随机布雷、计算每个格子周围的雷数、开始游戏、执行操作、判断胜负等功能。其中，用二维数组 `board` 存储雷区，-1 表示有雷，其他数字表示周围的雷数；用二维数组 `revealed` 存储已经揭开的格子，0 表示未揭开，1 表示已揭开，2 表示已标记为雷。