turtle_tkinter.py

import turtle
import tkinter as tk

def koch(t, n):
    """Draws a koch curve with length n."""
    if n < 10:
        t.fd(n)
        return
    m = n/3
    koch(t, m)
    t.lt(60)
    koch(t, m)
    t.rt(120)
    koch(t, m)
    t.lt(60)
    koch(t, m)


def snowflake(t, n):
    """Draws a snowflake (a triangle with a Koch curve for each side)."""
    for i in range(3):
        koch(t, n)
        t.rt(120)


def kochCanvas():
    bob.pu()
    bob.goto(-150, 90)
    bob.pd()
    snowflake(bob, 300)



root = tk.Tk()
canvas = tk.Canvas(master = root, width = 500, height = 500)
canvas.pack()

bob = turtle.RawTurtle(canvas)
bob.pencolor("#ff0000") # Red

bob.penup()   # Regarding one of the comments
bob.pendown() # Regarding one of the comments

tk.Button(master = root, text = "開始", command = kochCanvas).pack(side = tk.BOTTOM)


root.mainloop()