python中turtle模块的练习

#!/usr/bin/python
#coding: utf-8

import turtle
import time

def fun(s, t):
s.up()
s.forward(t)
s.down()

def test1(t, s):
t.left(90)
t.forward(s)
t.right(90)
t.forward(s)

def test2(t, s):
t.right(90)
t.forward(s)
t.left(90)
t.forward(s)

a = turtle.Pen()
b = turtle.Pen()
c = turtle.Pen()
d = turtle.Pen()

# 一条划线，剩下的都只是移动
a.forward(150)
fun(b, 150)
fun(c, 150)
fun(d, 150)

test1(a, 100)
test2(b, 100)
c.forward(20)
test1(c, 50)
fun(d, 20)
test2(d, 50)

time.sleep(3)

#!/usr/bin/python
#coding: utf-8

import turtle
import time

t = turtle.Pen()

for x in range(1, 9):
t.forward(100)
t.left(225)

time.sleep(2)

#!/usr/bin/python
#coding: utf-8

import turtle
import time

t = turtle.Pen()

for x in range(1, 38):
t.forward(100)
t.left(175)

time.sleep(2)