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()