画一组同切圆
turtle.circle(10)
>>> turtle.circle(20)
>>> turtle.circle(30)
>>> turtle.circle(40)
画一组同心圆
>>> turtle.circle(20)
>>> turtle.up()
>>> turtle.goto(0,-10)
>>> turtle.down()
>>> turtle.circle(30)
>>> turtle.up()
>>> turtle.goto(0,-20)
>>> turtle.down()
>>> turtle.circle(40)
画一个五角星
import turtle
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.left(144)
>>> turtle.forward(50)
>>> turtle.left(144)
>>> turtle.forward(50)
>>> turtle.left(144)
>>> turtle.forward(50)
>>> turtle.left(144)
>>> turtle.forward(50)
画一个黄色实心五角星
turtle.begin_fill()
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.end_fill()