用python设计一个五子棋代码，要求运行界面可视化，提供必要的注释和丰富的功能

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Python五子棋代码可以使用Pygame模块来实现可视化界面。下面是一个简单的五子棋代码，提供了基本的注释和功能：

import pygame

# 初始化Pygame
pygame.init()

# 游戏界面尺寸
SCREEN_WIDTH = 640
SCREEN_HEIGHT = 640

# 棋盘尺寸
BOARD_SIZE = 15

# 棋盘格子尺寸
GRID_SIZE = SCREEN_WIDTH // BOARD_SIZE

# 定义棋盘颜色
BOARD_COLOR = (255, 206, 158)

# 定义棋子颜色
BLACK_COLOR = (0, 0, 0)
WHITE_COLOR = (255, 255, 255)

# 创建游戏窗口
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
pygame.display.set_caption("五子棋")

# 绘制棋盘
def draw_board():
    # 填充背景色
    screen.fill(BOARD_COLOR)

    # 绘制棋盘网格
    for i in range(BOARD_SIZE):
        pygame.draw.line(screen, BLACK_COLOR, (GRID_SIZE, (i + 1) * GRID_SIZE), (SCREEN_WIDTH - GRID_SIZE, (i + 1) * GRID_SIZE))
        pygame.draw.line(screen, BLACK_COLOR, ((i + 1) * GRID_SIZE, GRID_SIZE), ((i + 1) * GRID_SIZE, SCREEN_HEIGHT - GRID_SIZE))

    # 绘制星位
    for i in [3, 7, 11]:
        for j in [3, 7, 11]:
            pygame.draw.circle(screen, BLACK_COLOR, ((i + 1) * GRID_SIZE, (j + 1) * GRID_SIZE), 5)

    # 刷新屏幕
    pygame.display.flip()

# 绘制棋子
def draw_piece(row, col, color):
    pygame.draw.circle(screen, color, ((col + 1) * GRID_SIZE, (row + 1) * GRID_SIZE), GRID_SIZE // 2)

# 判断胜负
def check_win(board, row, col):
    color = board[row][col]
    count = 1

    # 水平方向
    i = col - 1
    while i >= 0 and board[row][i] == color:
        count += 1
        i -= 1
    i = col + 1
    while i < BOARD_SIZE and board[row][i] == color:
        count += 1
        i += 1
    if count >= 5:
        return True

    # 垂直方向
    count = 1
    i = row - 1
    while i >= 0 and board[i][col] == color:
        count += 1
        i -= 1
    i = row + 1
    while i < BOARD_SIZE and board[i][col] == color:
        count += 1
        i += 1
    if count >= 5:
        return True

    # 左上到右下
    count = 1
    i = row - 1
    j = col - 1
    while i >= 0 and j >= 0 and board[i][j] == color:
        count += 1
        i -= 1
        j -= 1
    i = row + 1
    j = col + 1
    while i < BOARD_SIZE and j < BOARD_SIZE and board[i][j] == color:
        count += 1
        i += 1
        j += 1
    if count >= 5:
        return True

    # 左下到右上
    count = 1
    i = row + 1
    j = col - 1
    while i < BOARD_SIZE and j >= 0 and board[i][j] == color:
        count += 1
        i += 1
        j -= 1
    i = row - 1
    j = col + 1
    while i >= 0 and j < BOARD_SIZE and board[i][j] == color:
        count += 1
        i -= 1
        j += 1
    if count >= 5:
        return True

    return False

# 初始化棋盘
board = [[0] * BOARD_SIZE for _ in range(BOARD_SIZE)]

# 当前下棋方
current_player = 1

# 游戏主循环
while True:
    # 处理事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()
        elif event.type == pygame.MOUSEBUTTONDOWN:
            if event.button == 1:
                # 获取鼠标点击位置
                x, y = event.pos

                # 计算行列索引
                row = y // GRID_SIZE - 1
                col = x // GRID_SIZE - 1

                # 判断该位置是否已经有棋子
                if board[row][col] == 0:
                    # 绘制棋子
                    draw_piece(row, col, BLACK_COLOR if current_player == 1 else WHITE_COLOR)

                    # 更新棋盘
                    board[row][col] = current_player

                    # 判断胜负
                    if check_win(board, row, col):
                        print("黑方胜" if current_player == 1 else "白方胜")
                        pygame.quit()
                        exit()

                    # 切换下棋方
                    current_player = 3 - current_player

    # 绘制棋盘
    draw_board()

这个代码实现了基本的五子棋功能，包括界面可视化、鼠标交互、胜负判断等。你可以根据需要进行修改和添加功能。