如何在python的Tkinter中获得三个相邻的绿色方块？

import tkinter as tk

def create_green_rectangles():
    canvas.delete("all")  # 清空画布
    width = 50
    height = 50
    x = 50
    y = 50
    for i in range(3):
        canvas.create_rectangle(x, y, x + width, y + height, fill="green")
        x += width + 10

root = tk.Tk()
canvas = tk.Canvas(root, width=300, height=100)
canvas.pack()

create_green_rectangles()

root.mainloop()