生成一个关于python的 2048小游戏。

好的，这里是一个简单的 Python 2048 小游戏的代码：

import random

# 初始化游戏面板
board = [[0 for i in range(4)] for j in range(4)]

# 添加随机数字
def add_random_number():
    empty_cells = [(i, j) for i in range(4) for j in range(4) if board[i][j] == 0]
    if empty_cells:
        i, j = random.choice(empty_cells)
        board[i][j] = 2 if random.random() < 0.9 else 4

# 操作合并
def merge(row):
    new_row = [i for i in row if i != 0]
    for i in range(len(new_row) - 1):
        if new_row[i] == new_row[i+1]:
            new_row[i], new_row[i+1] = new_row[i] * 2, 0
    new_row = [i for i in new_row if i != 0]
    return new_row + [0] * (4 - len(new_row))

# 操作移动
def move_left():
    global board
    board = [merge(row) for row in board]

def move_right():
    global board
    board = [row[::-1] for row in board]
    board = [merge(row)[::-1] for row in board]

def move_up():
    global board
    board = [[board[j][i] for j in range(4)] for i in range(4)]
    board = [merge(row) for row in board]
    board = [[board[j][i] for j in range(4)] for i in range(4)]

def move_down():
    global board
    board = [[board[j][i] for j in range(4)] for i in range(4)]
    board = [row[::-1] for row in board]
    board = [merge(row)[::-1] for row in board]
    board = [[board[j][i] for j in range(4)] for i in range(4)]

# 判断游戏是否结束
def is_game_over():
    for i in range(4):
        for j in range(4):
            if board[i][j] == 0:
                return False
            if i > 0 and board[i][j] == board[i-1][j]:
                return False
            if j > 0 and board[i][j] == board[i][j-1]:
                return False
    return True

# 打印游戏面板
def print_board():
    print("-" * 25)
    for row in board:
        print("|", end="")
        for i in row:
            if i == 0:
                print("{:>4}|".format(""), end="")
            else:
                print("{:>4}|".format(i), end="")
        print()
        print("-" * 25)

# 开始游戏
def start_game():
    add_random_number()
    add_random_number()
    print_board()
    while not is_game_over():
        move = input("请输入操作方向（a: 左 s: 下 d: 右 w: 上）：")
        if move == "a":
            move_left()
        elif move == "d":
            move_right()
        elif move == "w":
            move_up()
        elif move == "s":
            move_down()
        else:
            print("请输入正确的操作方向！")
            continue
        add_random_number()
        print_board()
    print("游戏结束！")

# 开始游戏
start_game()

祝您玩得愉快！