turtle库基础练习

1画一组同切圆

import turtle
>>> turtle.circle(10)
>>> turtle.circle(20)
>>> turtle.circle(30)

2画一组同心圆

>> turtle.circle(20)
>>> turtle.up()
>>> turtle.goto(0,-20)

>>> turtle.down

>>> turtle.circle(40)

>>> turtle.up()
>>> turtle.goto(0,-80)

>>> turtle.down

>>> turtle.circle(160)

3画一个五角星

>>> import turtle
>>> 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)

4画一个黄色实心五角星

import turtle

>>> turtle.color('yellow')
>>> turtle.fillcolor("yellow")
>>> 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.right(144)
>>> turtle.end_fill()