画一组同心圆 

import turtle
turtle.penup()
turtle.goto(0,-200)
turtle.pendown()
turtle.circle(200)
turtle.penup()
turtle.goto(0,-150)
turtle.pendown()
turtle.circle(150)
turtle.penup()
turtle.goto(0,-100)
turtle.pendown()
turtle.circle(100)
turtle.penup()
turtle.goto(0,-50)
turtle.pendown()
turtle.circle(50)

 

posted @ 2017-09-07 18:48  ELsky  阅读(262)  评论(0)  编辑  收藏  举报