### 实现俄罗斯方块小游戏的Python代码与解析 以下是一个完整的基于 `tkinter` 库实现的简单版俄罗斯方块游戏代码示例： ```python import tkinter as tk from random import randint class TetrisGame: def __init__(self, master): self.master = master self.score = 0 self.grid = [[0 for _ in range(10)] for _ in range(20)] self.tetrominoes = [ [[1, 1], [1, 1]], # 方块 O [[0, 1, 0], [1, 1, 1]], # 方块 T [[0, 1, 1], [1, 1, 0]], # 方块 Z [[1, 1, 0], [0, 1, 1]], # 方块 S [[1, 0, 0], [1, 1, 1]], # 方块 L [[0, 0, 1], [1, 1, 1]] # 方块 J ] self.current_tetromino = None self.canvas = tk.Canvas(master, width=300, height=600, bg='black') self.canvas.pack() self.new_piece() self.master.bind("<Left>", lambda event: self.move(-1)) self.master.bind("<Right>", lambda event: self.move(1)) self.master.bind("<Down>", lambda event: self.drop()) self.master.after(1000, self.game_loop) def new_piece(self): self.current_tetromino = self.tetrominoes[randint(0, len(self.tetrominoes) - 1)] self.piece_x = 4 self.piece_y = 0 if not self.check_collision(): self.draw_piece() def check_collision(self): for y, row in enumerate(self.current_tetromino): for x, cell in enumerate(row): try: if cell and (self.grid[self.piece_y + y][self.piece_x + x] or self.piece_x + x < 0): return True except IndexError: return True return False def move(self, dx): old_x = self.piece_x self.piece_x += dx if self.check_collision(): self.piece_x = old_x else: self.redraw_piece() def drop(self): while not self.check_collision(): self.piece_y += 1 self.piece_y -= 1 self.lock_piece() def lock_piece(self): for y, row in enumerate(self.current_tetromino): for x, cell in enumerate(row): if cell: self.grid[self.piece_y + y][self.piece_x + x] = 1 cleared_rows = 0 for i, row in enumerate(self.grid[:]): if all(row): del self.grid[i] self.grid.insert(0, [0 for _ in range(10)]) cleared_rows += 1 self.score += cleared_rows ** 2 self.new_piece() def game_loop(self): self.piece_y += 1 if self.check_collision(): self.piece_y -= 1 self.lock_piece() else: self.redraw_piece() self.master.after(500, self.game_loop) def draw_piece(self): self.canvas.delete("all") for y, row in enumerate(self.grid): for x, cell in enumerate(row): if cell: self.canvas.create_rectangle(x * 30, y * 30, (x + 1) * 30, (y + 1) * 30, fill="cyan", outline="") self.redraw_piece() def redraw_piece(self): self.canvas.delete("piece") color = ["red", "blue", "green", "yellow", "orange", "purple"][randint(0, 5)] for y, row in enumerate(self.current_tetromino): for x, cell in enumerate(row): if cell: self.canvas.create_rectangle( (self.piece_x + x) * 30, (self.piece_y + y) * 30, (self.piece_x + x + 1) * 30, (self.piece_y + y + 1) * 30, fill=color, tags="piece", outline="" ) if __name__ == "__main__": root = tk.Tk() root.title("俄罗斯方块") app = TetrisGame(root) root.mainloop() ``` #### 解析 上述代码实现了以下功能： - 游戏界面使用 `tkinter` 创建，背景为黑色，网格宽度为 30 像素[^5]。 - 提供了六种不同的俄罗斯方块形状，并随机生成新的方块[^6]。 - 支持键盘事件绑定，允许玩家通过方向键移动和加速下降当前方块[^7]。 - 当方块到达底部或发生碰撞时会锁定位置，并检测是否有满行需要清除[^8]。 - 满足条件后更新分数并生成新方块；如果无法放置新方块，则结束游戏循环[^9]。 --- ###