作业四

import turtle

turtle.circle(50)
turtle.circle(100)
turtle.circle(150)

import turtle
turtle.filleolor('yellow')
turtle.begin_fill()
turtle.circle(50)
turtle.end_fill()

turtle.up()
turtle.gote(0,-50)
turtle.down()
turtle.cicle(100)

turtle.up()
turtle.goto(0,-100)
turtle.down()
turtle.circle(150)


turtle.done()

import turtle
import time
turtle.fillcolor('red')
turtle.begin_fill()
turtle.forward(100)
turtle.right(144)
time.sleep(1)
turtle.forward(100)
turtle.right(144)
time.sleep(1)
turtle.forward(100)
turtle.right(144)
turtle.forward(100)
time.sleep(1)
turtle.right(144)
turtle.forward(100)
turtle.end_fill()
time.sleep(3)