请使用python tkinter开发一个俄罗斯方块游戏，包括：为了实现基本的俄罗斯方块功能，用户使用左、右和下箭头来控制盒子的左、右和向下移动；使用上箭头来改变正方形的方向。在游戏结束时将会显示一个弹出式对话框

好的，下面是使用python tkinter开发俄罗斯方块游戏的代码。在代码中，我们使用了tkinter中的Canvas、Label、Button、Toplevel等组件来实现游戏界面和弹出式对话框。

import tkinter as tk
import random

# 定义方块的种类和颜色
shapes = [
    [[1, 1, 1], [0, 1, 0]],
    [[0, 2, 2], [2, 2, 0]],
    [[3, 3, 0], [0, 3, 3]],
    [[4, 0, 0], [4, 4, 4]],
    [[0, 0, 5], [5, 5, 5]],
    [[6, 6], [6, 6]]
]
colors = ['red', 'orange', 'yellow', 'green', 'blue', 'purple', 'pink']

class Tetris:
    def __init__(self, master):
        self.width = 10
        self.height = 20
        self.cell_size = 30
        self.master = master
        self.canvas = tk.Canvas(master, width=self.width*self.cell_size, height=self.height*self.cell_size, bg='white')
        self.canvas.pack()
        self.current_shape = None
        self.current_pos = None
        self.current_color = None
        self.score = 0
        self.score_label = tk.Label(master, text='Score: 0')
        self.score_label.pack()
        self.game_over = False
        self.init_game()
        self.canvas.bind_all('<Left>', self.move_left)
        self.canvas.bind_all('<Right>', self.move_right)
        self.canvas.bind_all('<Down>', self.move_down)
        self.canvas.bind_all('<Up>', self.rotate)

    def init_game(self):
        self.grid = [[0]*self.width for _ in range(self.height)]
        self.draw_grid()
        self.new_shape()
        self.update_score()

    def draw_grid(self):
        self.canvas.delete('grid')
        for i in range(self.width):
            x0, y0, x1, y1 = i*self.cell_size, 0, i*self.cell_size, self.height*self.cell_size
            self.canvas.create_line(x0, y0, x1, y1, tag='grid')
        for i in range(self.height):
            x0, y0, x1, y1 = 0, i*self.cell_size, self.width*self.cell_size, i*self.cell_size
            self.canvas.create_line(x0, y0, x1, y1, tag='grid')

    def new_shape(self):
        shape_index = random.randint(0, len(shapes)-1)
        self.current_shape = shapes[shape_index]
        self.current_color = colors[shape_index]
        self.current_pos = [self.width//2-len(self.current_shape[0])//2, 0]

        if not self.is_valid_position(self.current_shape, self.current_pos):
            self.game_over = True
            self.show_game_over_dialog()
            return

        self.draw_shape(self.current_shape, self.current_pos, self.current_color)

    def draw_shape(self, shape, pos, color):
        for i in range(len(shape)):
            for j in range(len(shape[0])):
                if shape[i][j] > 0:
                    x, y = pos[0]+j, pos[1]+i
                    self.draw_cell(x, y, color)

    def erase_shape(self, shape, pos):
        for i in range(len(shape)):
            for j in range(len(shape[0])):
                if shape[i][j] > 0:
                    x, y = pos[0]+j, pos[1]+i
                    self.erase_cell(x, y)

    def draw_cell(self, x, y, color):
        x0, y0, x1, y1 = x*self.cell_size, y*self.cell_size, (x+1)*self.cell_size, (y+1)*self.cell_size
        self.canvas.create_rectangle(x0, y0, x1, y1, fill=color, outline='white')

    def erase_cell(self, x, y):
        x0, y0, x1, y1 = x*self.cell_size, y*self.cell_size, (x+1)*self.cell_size, (y+1)*self.cell_size
        self.canvas.create_rectangle(x0, y0, x1, y1, fill='white', outline='white')

    def move_left(self, event):
        if not self.game_over and self.is_valid_position(self.current_shape, [self.current_pos[0]-1, self.current_pos[1]]):
            self.erase_shape(self.current_shape, self.current_pos)
            self.current_pos[0] -= 1
            self.draw_shape(self.current_shape, self.current_pos, self.current_color)

    def move_right(self, event):
        if not self.game_over and self.is_valid_position(self.current_shape, [self.current_pos[0]+1, self.current_pos[1]]):
            self.erase_shape(self.current_shape, self.current_pos)
            self.current_pos[0] += 1
            self.draw_shape(self.current_shape, self.current_pos, self.current_color)

    def move_down(self, event):
        if not self.game_over and self.is_valid_position(self.current_shape, [self.current_pos[0], self.current_pos[1]+1]):
            self.erase_shape(self.current_shape, self.current_pos)
            self.current_pos[1] += 1
            self.draw_shape(self.current_shape, self.current_pos, self.current_color)
        else:
            self.freeze_shape()
            self.clear_rows()
            self.new_shape()

    def rotate(self, event):
        if not self.game_over:
            new_shape = [[self.current_shape[j][i] for j in range(len(self.current_shape))] for i in range(len(self.current_shape[0])-1, -1, -1)]
            if self.is_valid_position(new_shape, self.current_pos):
                self.erase_shape(self.current_shape, self.current_pos)
                self.current_shape = new_shape
                self.draw_shape(self.current_shape, self.current_pos, self.current_color)

    def freeze_shape(self):
        for i in range(len(self.current_shape)):
            for j in range(len(self.current_shape[0])):
                if self.current_shape[i][j] > 0:
                    x, y = self.current_pos[0]+j, self.current_pos[1]+i
                    self.grid[y][x] = self.current_shape[i][j]

    def clear_rows(self):
        rows_cleared = 0
        for i in range(self.height-1, -1, -1):
            if all(self.grid[i]):
                rows_cleared += 1
                for j in range(self.width):
                    self.erase_cell(j, i)
                del self.grid[i]
                self.grid.insert(0, [0]*self.width)
        if rows_cleared > 0:
            self.score += rows_cleared*10
            self.update_score()

    def update_score(self):
        self.score_label.config(text='Score: {}'.format(self.score))

    def is_valid_position(self, shape, pos):
        for i in range(len(shape)):
            for j in range(len(shape[0])):
                if shape[i][j] > 0:
                    x, y = pos[0]+j, pos[1]+i
                    if x < 0 or x >= self.width or y < 0 or y >= self.height or self.grid[y][x] > 0:
                        return False
        return True

    def show_game_over_dialog(self):
        dialog = tk.Toplevel()
        dialog.title('Game Over')
        dialog.geometry('200x100')
        message = tk.Label(dialog, text='Game Over!', font=('Helvetica', 18))
        message.pack(pady=20)
        button = tk.Button(dialog, text='Quit', command=self.master.quit)
        button.pack()

root = tk.Tk()
root.title('Tetris')
game = Tetris(root)
root.mainloop()

在运行代码后，会弹出一个俄罗斯方块游戏的窗口，按照要求使用左、右和下箭头来控制方块的左、右和向下移动，使用上箭头来改变方块的方向。当游戏结束时会弹出一个弹出式对话框。