我是Tkinterer的新手，有人能帮我做一个基于矩阵的二维图形吗？

import tkinter as tk

window = tk.Tk()

def draw_matrix():
    matrix = [
        [1, 1, 1],
        [1, 0, 1],
        [1, 1, 1]
    ]

    canvas = tk.Canvas(window, width=200, height=200)
    cell_width = 50
    cell_height = 50

    for i in range(len(matrix)):
        for j in range(len(matrix[i])):
            x1 = j * cell_width
            y1 = i * cell_height
            x2 = x1 + cell_width
            y2 = y1 + cell_height

            if matrix[i][j] == 1:
                canvas.create_rectangle(x1, y1, x2, y2, fill='black')
            else:
                canvas.create_rectangle(x1, y1, x2, y2, fill='white')

    canvas.pack()

draw_matrix()
window.mainloop()