在jupyter notebook用python画雪花

以下是用 Turtle 绘制雪花的 Python 代码：

import turtle

def snowflake(length_side, levels):
    if levels == 0:
        turtle.forward(length_side)
        return
    length_side /= 3.0
    snowflake(length_side, levels-1)
    turtle.left(60)
    snowflake(length_side, levels-1)
    turtle.right(120)
    snowflake(length_side, levels-1)
    turtle.left(60)
    snowflake(length_side, levels-1)

turtle.speed("fastest")

for i in range(3):
    snowflake(300, 4)
    turtle.right(120)

turtle.done()

运行代码，你将会得到下面这幅美丽的雪花图案：