turtle库基础练习

1、画一组同切圆

>>> import turtle
>>> turtle.circle(25)
>>> turtle.circle(50)
>>> turtle.circle(75)
>>> turtle.circle(100)

2、画一组同心圆

>>> turtle.circle(25)
>>> turtle.up()
>>> turtle.goto(0,-25)
>>> turtle.down()
>>> turtle.circle(50)
>>> turtle.up()
>>> turtle.goto(0,-50)
>>> turtle.down()
>>> turtle.circle(75)
>>> turtle.up()
>>> turtle.goto(0,-75)
>>> turtle.down()
>>> turtle.circle(100)

3、画一个五角星

>>> 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.bgcolor('red')

turtle.begin_fill()

for i in range(5):
turtle.forward(100)
turtle.right(144)

turtle.end_fill()