闪闪的正八边形.py

"""
   闪闪的正八边形.py
   来自Python海龟宝典的程序。
"""
from time import sleep
from turtle import Turtle,Screen

cs = ['red','orange','yellow','green',
      'cyan','blue','purple','pink']

screen = Screen()
screen.delay(0)

tom = Turtle(visible=False)
tom.speed(0)
tom.fillcolor('red')           # 设定填充颜色为红色

tom.begin_fill()               # 开始填充
for x in range(8):
    tom.fd(100)
    tom.left(45)
fillitem = tom._fillitem       # 保存填充区域项目编号
fillpath = tom._fillpath       # 保存填充区域各个坐标点
tom.end_fill()                 # 结束填充

while True:
    for color in cs:
        screen._drawpoly(fillitem, fillpath,fill=color)
        sleep(0.25)
        screen.update()