分型意外收获

from turtle import *
speed(9)
hideturtle()
def ban(s,c):
    if c == 1:
        return s
    else:
        return    ban(s/2,c-1)

def juxfx(cd,cc):   
   for i in range(4):
        fd(cd/2)
        if cc>1:
            rt(135)
            juxfx(cd/2,cc-1)
            rt(225)
        fd(cd/2)
        lt(90)
juxfx(200,5)