#KochDrawV1.py
import turtle
def koch(size,n):
if n==0:
turtle.fd(size)
else:
for i in [0,90,-90,-90,90]:
turtle.left(i)
koch(size/3,n-1)
def main():
turtle.setup(800,600)
turtle.pu()
turtle.goto(-200,100)
turtle.pensize(3)
turtle.pd()
level=1
bianshu=3
koch(400,level)
turtle.right(360/bianshu)
koch(400,level)
turtle.right(360/bianshu)
koch(400,level)
turtle.hideturtle
main()