Python---turtle---奥运五环

东北大学python课的练习题，进行了一点完善，

记录自己的学习之路。

代码：

import turtle
turtle.hideturtle()
turtle.pensize(5)
turtle.circle(100)
turtle.color("blue")
turtle.penup()
turtle.goto(-250,0)
turtle.pendown()
turtle.circle(100)
turtle.color("red")
turtle.penup()
turtle.goto(250,0)
turtle.pendown()
turtle.circle(100)
turtle.color("green")
turtle.penup()
turtle.goto(125,-100)
turtle.pendown()
turtle.circle(100)
turtle.color("yellow")
turtle.penup()
turtle.goto(-125,-100)
turtle.pendown()
turtle.circle(100)
turtle.color("blue")
turtle.penup()
turtle.goto(0,-300)
turtle.pendown()
turtle.write("我和XXX的XX五环",font=("宋体",20))