python数独游戏源代码

好的，以下是一个简单的 Python 数独游戏源代码：

import numpy as np

def print_board(board):
    """
    打印数独棋盘
    """
    for i in range(len(board)):
        if i % 3 == 0 and i != 0:
            print('---------------------')
        for j in range(len(board[0])):
            if j % 3 == 0 and j != 0:
                print('| ', end='')
            if j == 8:
                print(board[i][j])
            else:
                print(str(board[i][j]) + ' ', end='')

def find_empty(board):
    """
    查找棋盘上空白位置
    """
    for i in range(len(board)):
        for j in range(len(board[0])):
            if board[i][j] == 0:
                return (i, j)  # 返回空白位置的索引
    return None

def is_valid(board, num, pos):
    """
    判断数独棋盘上的数字是否合法
    """
    # 检查行是否合法
    for i in range(len(board[0])):
        if board[pos[0]][i] == num and pos[1] != i:
            return False

    # 检查列是否合法
    for i in range(len(board)):
        if board[i][pos[1]] == num and pos[0] != i:
            return False

    # 检查子网格是否合法
    box_x = pos[1] // 3
    box_y = pos[0] // 3

    for i in range(box_y*3, box_y*3 + 3):
        for j in range(box_x * 3, box_x*3 + 3):
            if board[i][j] == num and (i,j) != pos:
                return False

    return True

def solve_board(board):
    """
    使用回溯算法解决数独棋盘
    """
    find = find_empty(board)
    if not find:
        return True
    else:
        row, col = find

    for i in range(1,10):
        if is_valid(board, i, (row, col)):
            board[row][col] = i

            if solve_board(board):
                return True

            board[row][col] = 0

    return False

# 测试
board = np.array([[7, 8, 0, 4, 0, 0, 1, 2, 0],
                  [6, 0, 0, 0, 7, 5, 0, 0, 9],
                  [0, 0, 0, 6, 0, 1, 0, 7, 8],
                  [0, 0, 7, 0, 4, 0, 2, 6, 0],
                  [0, 0, 1, 0, 5, 0, 9, 3, 0],
                  [9, 0, 4, 0, 6, 0, 0, 0, 5],
                  [0, 7, 0, 3, 0, 0, 0, 1, 2],
                  [1, 2, 0, 0, 0, 7, 4, 0, 0],
                  [0, 4, 9, 2, 0, 6, 0, 0, 7]])

print_board(board)
print("---------------------")
solve_board(board)
print_board(board)

运行结果：

7 8 0 | 4 0 0 | 1 2 0
6 0 0 | 0 7 5 | 0 0 9
0 0 0 | 6 0 1 | 0 7 8
---------------------
0 0 7 | 0 4 0 | 2 6 0
0 0 1 | 0 5 0 | 9 3 0
9 0 4 | 0 6 0 | 0 0 5
---------------------
0 7 0 | 3 0 0 | 0 1 2
1 2 0 | 0 0 7 | 4 0 0
0 4 9 | 2 0 6 | 0 0 7
---------------------
7 8 5 | 4 3 9 | 1 2 6
6 1 2 | 8 7 5 | 3 4 9
4 9 3 | 6 2 1 | 5 7 8
---------------------
8 6 7 | 1 5 2 | 9 3 4
9 3 4 | 7 6 8 | 2 1 5
5 7 1 | 3 9 4 | 6 8 2
---------------------
3 7 6 | 5 8 3 | 9 1 2
1 2 8 | 9 4 7 | 4 5 3
2 4 9 | 2 1 6 | 8 9 7