使用VSCode开发少儿编程项目：数独求解器

使用VSCode开发少儿编程项目：数独求解器

我将为您创建一个用Python实现的数独求解器，这个项目适合在VSCode中开发，并包含图形界面，让少儿能够直观地理解数独求解过程。

项目概述

• 创建一个完整的数独游戏和求解器
• 实现回溯算法自动求解数独
• 提供图形界面让用户输入和查看数独
• 添加难度选择和提示功能
• 展示求解过程的可视化

完整代码

import pygame
import sys
import time
import random

# 初始化pygame
pygame.init()

# 屏幕设置
WIDTH, HEIGHT = 540, 600
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("数独求解器 - 少儿编程")

# 颜色定义
BACKGROUND = (255, 255, 255)
GRID_COLOR = (0, 0, 0)
CELL_COLOR = (220, 220, 220)
SELECTED_COLOR = (173, 216, 230)
HIGHLIGHT_COLOR = (230, 230, 250)
TEXT_COLOR = (0, 0, 0)
GIVEN_COLOR = (0, 0, 0)
USER_COLOR = (0, 100, 0)
BUTTON_COLOR = (70, 130, 180)
BUTTON_HOVER_COLOR = (100, 160, 210)
SOLVING_COLOR = (255, 0, 0)

# 字体
font = pygame.font.SysFont('simhei', 32)
small_font = pygame.font.SysFont('simhei', 24)
title_font = pygame.font.SysFont('simhei', 36)

# 数独板类
class SudokuBoard:
    def __init__(self):
        self.board = [[0 for _ in range(9)] for _ in range(9)]
        self.original = [[0 for _ in range(9)] for _ in range(9)]
        self.solution = [[0 for _ in range(9)] for _ in range(9)]
        self.selected = None
        self.solving = False
        self.solved = False
        self.steps = 0
        
    def generate_puzzle(self, difficulty="easy"):
        # 先创建一个完整的数独
        self.solve_full_board()
        
        # 根据难度移除一些数字
        self.board = [row[:] for row in self.solution]
        self.original = [row[:] for row in self.solution]
        
        # 根据难度确定要移除的数字数量
        if difficulty == "easy":
            to_remove = 30
        elif difficulty == "medium":
            to_remove = 40
        else:  # hard
            to_remove = 50
            
        # 随机移除数字
        cells = [(i, j) for i in range(9) for j in range(9)]
        random.shuffle(cells)
        
        for i in range(to_remove):
            if i < len(cells):
                row, col = cells[i]
                self.board[row][col] = 0
                self.original[row][col] = 0
                
    def solve_full_board(self):
        # 清空棋盘
        self.solution = [[0 for _ in range(9)]