turtle库基础练习

1.

import turtle
turtle.circle(30)
turtle.circle(40)
turtle.circle(50)
turtle.circle(60)
turtle.circle(70)

2.

import turtle
turtle.shape('turtle')
turtle.circle(30)
turtle.up()
turtle.goto(0,-30)
turtle.down()
turtle.circle(70)
turtle.up()
turtle.goto(0,-70)
turtle.down()
turtle.circle(110)
turtle.up()
turtle.goto(0,-110)
turtle.down()
turtle.circle(150)

3.

import turtle
for i in range(5):
turtle.forward(80)
turtle.right(144)

4.

import turtle
turtle.color('yellow')
turtle.begin_fill()
for i in range(5):
turtle.forward(80)
turtle.right(144)
turtle.end_fill()