如何在python中创建网格边框？

def print_grid(width, height):
    for y in range(height):
        for x in range(width):
            if y == 0 or y == height - 1 or x == 0 or x == width - 1:
                print('#', end='')
            else:
                print(' ', end='')
        print()

# 示例调用
print_grid(10, 5)

##########
#        #
#        #
#        #
##########

import tkinter as tk

def draw_grid(canvas, width, height, cell_size):
    for y in range(height):
        for x in range(width):
            if y == 0 or y == height - 1 or x == 0 or x == width - 1:
                canvas.create_rectangle(x * cell_size, y * cell_size,
                                       (x + 1) * cell_size, (y + 1) * cell_size,
                                       fill='black')

root = tk.Tk()
canvas = tk.Canvas(root, width=400, height=300)
canvas.pack()

draw_grid(canvas, 20, 15, 20)

root.mainloop()

import numpy as np
import matplotlib.pyplot as plt

def plot_grid(width, height):
    x = np.linspace(0, width, width + 1)
    y = np.linspace(0, height, height + 1)
    
    plt.figure(figsize=(8, 6))
    plt.plot(x, np.zeros_like(x), 'k-')
    plt.plot(np.zeros_like(y), y, 'k-')
    plt.xlim(0, width)
    plt.ylim(0, height)
    plt.gca().set_aspect('equal', adjustable='box')
    plt.show()

# 示例调用
plot_grid(10, 5)